Twin turbo V8 systems, can you beat on them???

[shortrack]

Man they make some impressive horsepower like 6, 7, 800hp but can you really lean on them?.....Im talking a track day type situation not 10sec 1/4 mi.....like 45 min straight of on and off the gas flat out four or five times a day take it home, do some basic maintenance then do it all over again next weekend......do they hold up?

does anyone know of anyone who uses this type of system in their track rat??

[Larry Callahan]

I am working on figuring that out now. I sure hope I can beat the snot out of it any time I wish. That was the plan. Beat on it a lot and just change the oil often.

[Nessumsar]

Absolutely. So long as your cooling system is up to the task...

An import 2.0 liter making 300hp is under much more stress than a 6.0 liter V8 making 600hp. You almost can't go to a track day without seeing a Subaru, Mitsu, Mazda...

[shortrack]

Absolutely. So long as your cooling system is up to the task...

An import 2.0 liter making 300hp is under much more stress than a 6.0 liter V8 making 600hp. You almost can't go to a track day without seeing a Subaru, Mitsu, Mazda...

Fair enough, but thats an import....is anyone actually doing it with a V8??

I remember Car & Driver used to test those Callaway Corvettes years back and they never seemed to make it through an event....I know that was a long time ago but thats the last ones I can remember....if theres been anyone else doing it Id love to hear about it.

[shortrack]

I am working on figuring that out now. I sure hope I can beat the snot out of it any time I wish. That was the plan. Beat on it a lot and just change the oil often.

I'll be interested to see how things work out because you cant ignore them from a power output point of view.......did the engine builder do anything different for your application as opposed to his "normal" street driver or drag race builds???

[shmoov69]

Well I did the Midwest Muscle Car Challenge this summer and beat on it for 2 whole days and did not have any problems. The car had never been on a track other than drag strip before then. The only issues with the "system" was that the turbos I have are too small and the EGT's were pegging the guage at the end of the front straight....the guage goes to 1600!! And it was doing it EVERY lap!! And I made 40 of them! Lol! The other problem was the oil pump pickup tube fell off that day sometime. I still did the 99 mile cruise and the speed stop challenge and the autoX the next day also. Needless to say the oil was totaly dead and then on top of that it had zero pressure when I was on the brakes. But the next weekend (after changing just the oil) I drove it about 300 miles to a car show/cruise and the weekend after that down to the dragstrip and ran 5 or 6 passes and back home! Then I pulled the engine to put an oil pump, pickup and went ahead and slid new bearings in it. Actually just drove it for the first time again tonight! Lol!

So, to answer your original Q, yes they can be beat on without problems. My suggestion would be to have some kind of killer heat insulation inside the car or on the pipes or something (which I don't have!) and to have an oil cooler (which I don't have!) on it. And run GOOD gas while you are beating on it (which I did do!).

[PhillipM]

How about putting the turbos in the back.?.?. I would expect that to lower temps up front.

[Nothingface5384]

just make some turbo heat sheilds

syntehtic oil will help with oil temps if you feel oil coolers are more of a restriction then a helper..

alki/water injection and intercooling help with heat soak

[shortrack]

Well I did the Midwest Muscle Car Challenge this summer and beat on it for 2 whole days and did not have any problems. The car had never been on a track other than drag strip before then. The only issues with the "system" was that the turbos I have are too small and the EGT's were pegging the guage at the end of the front straight....the guage goes to 1600!! And it was doing it EVERY lap!! And I made 40 of them! Lol! The other problem was the oil pump pickup tube fell off that day sometime. I still did the 99 mile cruise and the speed stop challenge and the autoX the next day also. Needless to say the oil was totaly dead and then on top of that it had zero pressure when I was on the brakes. But the next weekend (after changing just the oil) I drove it about 300 miles to a car show/cruise and the weekend after that down to the dragstrip and ran 5 or 6 passes and back home! Then I pulled the engine to put an oil pump, pickup and went ahead and slid new bearings in it. Actually just drove it for the first time again tonight! Lol!

So, to answer your original Q, yes they can be beat on without problems. My suggestion would be to have some kind of killer heat insulation inside the car or on the pipes or something (which I don't have!) and to have an oil cooler (which I don't have!) on it. And run GOOD gas while you are beating on it (which I did do!).

Very good, a real world testimonial......I have a lot of questions, mainly how long have you been running with the above set up? how much power are you putting out? did you do anything special to the engine to prepare it for the turbos? could you give a quick run down on it? is there much lag? and is there a build thread for your car?....thanks!

when my car is (cough) done I'll be running a mild engine I have laying around the shop then I'll work towards the big gun keeper engine and you cant ignore these modern turbo set ups. D

[shmoov69]

Very good, a real world testimonial......I have a lot of questions, mainly how long have you been running with the above set up? how much power are you putting out? did you do anything special to the engine to prepare it for the turbos? could you give a quick run down on it? is there much lag? and is there a build thread for your car?....thanks!
Well, there is no build thread. I did the turbo setup in 2000 (when everyone said it couldn't be done with a carb!) and it has prolly 50,000 or so miles on it since then.....that enough?!?! LOL! Yes there has been changes since then, but the majority of the "setup" has been the same. The current engine has 4 bolt block. Blower dish pistons in it with a Scat crank and Eagle Sportsman rods. The heads are mildly ported Vortec stockers. Super Victor intake. Holley 650 puddle dumper that we modded. The cam is a custom grind Comp which is now a roller since last summer. The trans is a TH350 that I built and put good TCI stuff inside and converter. Turbos are junkyard T-3's and a good air to air Griffin intercooler. Pretty basic stuff in all reality. The power output is around 550 rwhp and 650 rwtq with a fairly mild tune. Rear is a 9" with 3.00 gears. Best pass at the strip is a 10.97 @ 125 with some ET Streets.
Since I put the MSD 6AL-2 in it, the thing has just a little lag since I now have timing down low. For the first 8 or so years I just had the timing locked at 24* which ran my EGT's high at cruise and caused some lag. Should've done that YEARS AGO!!
The first engine that lasted 2 1/2 years was a stock 2 bolt with cast crank, stock rods (and bolts) with factory replacement pistons on a "hone job" block! It lasted that long and 17,000 miles before the skirts broke off the junk pistons (in a loose bore) and caused the cyl wall to split. Actually at the dragstrip when it started puking water badly.
I have no idea what "real" turbo power will do on a road course, but little weenie turbo power does fine!:cheers:

[shortrack]

wow 550/650 at the rear wheels, running 10.90s and been running since 2000......nice! theres a case for turbos if there ever was one.....man this place complicates things lol..... btw how much boost does it put out and how high do you rev it? and did you build the engine or did a shop build it and who came up with the..."formula" of what parts/pieces to put in the engine??

thanks for your patience!/ D

[MonzaRacer]

Jimmy, My friend I have new respect for you. As I thought of twin turboing my Monza I now have a pic of your engine and intend to whip up something similar but use LT1 intake and FI.
You are now my hero I do believe. And since cheap turbos are available from Ebay,,,.

[shortrack]

Jimmy, My friend I have new respect for you. As I thought of twin turboing my Monza I now have a pic of your engine and intend to whip up something similar but use LT1 intake and FI.
You are now my hero I do believe. And since cheap turbos are available from Ebay,,,.

speaking of Ebay....what does everyone out there think of the kits available from there???...they seem almost insanely reasonable.

[John Wright]

I'm a little skeptical about the cheap turbos on ebay....if you loose the bearings in one of those things, that crap gets pumped throughout the whole engine. Think about cheap bearings in a piece that spins a bunch of rpms.

[ProdigyCustoms]

The heat is your biggest problem with turbos

[DButler]

I just got my twin setup working. I am using ebay turbos and they seem to be fine. Still finishing up tweeking the tune on it. I have to wrap my exhaust because frank you are right. Mna those things produce tons of heat. I have a front mount intercooler as you do and I am running a black magic fan setup and my car barely gets over 180. I let it set there and idle for as long as I want and it never gets above 195. So hopefully all works out I am still new at this so I am testing mine to see if it will hold up to abuse and being street driven where ever. I have a few friends that live and breath turbos and thats the only thing they swear by. They seem to like them really well so I guess we will see how my works out.

[shmoov69]

Ok, on mine I got it at about 12 psi on just pump gas premium and can go up from there with good gas, about 18 psi or so. Just remember that psi is somewhat measuring back pressure and not necessarily "boost" in every case. If I had good turbos, I could make the same or more power on less "boost".
I put the engine together myself, just had the machine work done at a shop. And the "formula" so to speak was from stuff that I had laying around, but a good cam......mainly because I had a friend that worked at Comp tho!! There is all kind of info on the turboforums now, just didn't check it out when I was doing it way back then. Heck, I don't know if it was around then?! Oh, and no need to turn rpms with it, I can shift at 5000 or 5700 and it won't make a bit of difference at the strip!! Lol. But that is my combo, others may vary.

Now the eBay setups....I think the "kits" are pretty much, well, cheap! From the headers that I have seen, they are thin and the welds suck. The turbos I have heard both sides, junk and good. I have heard of a few guys buying the cheap turbos and sending them off to be balanced by a pro and them lasting just fine. Heck there is a guy in town that has an LS T/A that is a street car that runs mid to low 10's that way.

On wrapping the headers, I had a buddy that did that on his Typhoon and the mild steel basicly disenegrated after just 2 years, supposidly from condensation. So consider that with custom made headers before you wrap them.

There is INTENSE heat underhood tho. I got a "heat island" going on in one spot that has litteraly ignited #2 & 4 plug wires. They were not touching anything and stay a minimum inch from any metal. That was after about 20 minutes of idling in traffic and the engine temp getting up to about 235 or so. But the car won't run ANY cooler than 195 at any time for some reason.

The biggest problem with me is that now that I "got" the power, I can NEVER go back!!!
Go for it!!
Sorry for being so long winded!! Lol!

[Charley Lillard]

I have twin turbo cars and also a LS9 supercharged car. Between the two the supercharged setup is better for the track than the turbos. The turbo setup holds up just fine but there is always a turbo lag issue that doesn't happen with the blower setup. The blower setup gives you a much flatter torque curve. You know exactly what you are going to get with the supercharger. With the turbos you don't want the boost to hit right in the middle of a turn. Turbos tend to give you a big hit all at once versus the supercharger and that is not good on the track. That was a issue with the early turbo Porsche. Many got wrecked because the boost hit too hard all at once. If I were you and had a clean slate I would do a LS with a Magnussen type blower.

[shortrack]

I just got my twin setup working. I am using ebay turbos and they seem to be fine. Still finishing up tweeking the tune on it. I have to wrap my exhaust because frank you are right. Mna those things produce tons of heat. I have a front mount intercooler as you do and I am running a black magic fan setup and my car barely gets over 180. I let it set there and idle for as long as I want and it never gets above 195. So hopefully all works out I am still new at this so I am testing mine to see if it will hold up to abuse and being street driven where ever. I have a few friends that live and breath turbos and thats the only thing they swear by. They seem to like them really well so I guess we will see how my works out.

thanks for chiming in what is your set up it doesn't say in your sig line...do you have pics?

[shortrack]

,
Sorry for being so long winded!! Lol!

what mods to the carb did you do?....I hear roots supercharged boat guys talking about "boost referencing" a carb but dont really know what that is...do you start it up the the carb stock and just start doing plug chops and jet from there?

Dont worry one single bit about being long winded Jimmy
I appreciate all the time you've taken to explain things, youve been VERY helpful. You've shown that you can reliably put some serious miles on a twin turbo set up. Something that is basically home built, not babied and it doesnt sound like you have a zillion $$ in to it......you're the perfect guy to respond.

the road racer in me (Superbikes) expects to carefully build something right the first time, then be able to take it out and flog the livin' hel out of it for hours on end with basically regular maintenance and worry way more about chassis set up and lap times than if the engine is going to melt down or blow up...the contractor in me carefully chooses his products based on long term real world accounts not hype in print adds or magazine features....Im never the first guy on the block to have something.

[shortrack]

If I were you and had a clean slate I would do a LS with a Magnussen type blower.

Hey thanks for chiming in Charlie.....do you have a car with that set up?....I know you have the ex Tony Stewart Nascar.....how do you like the engine in that?.......is it race gas because Ive sworn myself to building a pump gas engine.

[shmoov69]

Well it has definately been beat on!! Prolly no less than 50 passes down the strip......among "other" activities not on the strip!! Lol

The carb mods are basic stuff at first. Which were cutting the choke horn off and welding up the rod holes and putting solid floats in it. Whammo, that's it!! LoL! After that while trying other stuff was adjustable air bleeds and drilling out the PVCR (I think that's what it was called) channels out.
The boost reference part is on the fuel pressure regulator only. Gotta have a return style fuel system also.

[MonzaRacer]

OK so are there any turbo guys(JIMMY?) who can tell me if this turbo is any good spec wise
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=390237375725&viewitem=&sspagename=STRK%3AMEWAX%3AIT
I have been told by guys using it its reliable but I just dont completely understand reading turbo info.
So I am wondering if I do something like Jimmy's but use an LT1 intake and my ci will be in the 302-305 range if these would actually work or are they some odd ball POS?

[DButler]

I have a pretty much stock 355 with a mild cam in a 67 camaro. I am running twin 57mm turbos with a front mount intercooler. I am running custom built stainless steel headers. My fuel system consists of a BG 400 pump with an Aeromotive boost referenced regulator. I had my carb modded by the carb shop in Cali, and it seems to be fine. I have got to drive it much yet, but what I have driven it, it runs cool and makes awesome power. We still have to fine tune it and dyno it. I am using an Innovate LM2 for air/fuel ratios. I have pictures on my PT garage.

[Ash]

Ahhh...the E-bay turbo question. Can't speak from experience, but many others have. Just Google E-bay turbo and spend some time reading all the forums that pop up...there are PLENTY. Jimmy brought up a good point with the balancing, but you have to consider that a good balance wont make up for crap internals or questionable quality control over the long haul.

[aronhk_md]

avoid the ebay turbo specials...as mentioned its not worth it when something goes wrong. For a couple of dollars more you can get quality stuff. That said there ARE good deals on ebay for turbo piping and connectors.

A single turbo adds complexity to your powerplant...twin turbos add more. The argument for twins has always been a quicker spool up, but a properly sized single can really spool just as quickly, and a larger single is actually more EFFICIENT. Not to mention less expense up front than twins. Twin Turbo sounds cool when you say it though.

As for whether they can stand up to track abuse...watch the following video. I think these guys are in Holland? I know that at least in europe they were a bit of a sensation. Anyway, their 1407 hp twin turbo knightrider style trans am has a few entries on youtube. Its fun to watch the smoke billowing from the tires as it accelerates after turns...lol.

http://www.youtube.com/watch?v=5S4KY5_nO_o

In fact, I believe the car was run at an event where they had the latest porsches practicing, and the drivers of those modern cars made impressive comments about the trans am......read it a while back so I dont recall the details.

heres another...

http://www.youtube.com/watch?v=ISk3zI2rpuM&feature=related

[RSX302]

My 2 pennies...

With my Incon twin turbo 302, it was perfect. No excessive under hood temps (cast iron manifolds), no turbo lag what so ever (small turbos) and very reliable.

IMO, a small cubed V8 is the best with small turbos. Response great, great all around power and still gets great mpg. (50hp+ more than a supercharger) Full boost by 2000-2500rpm.

Yes..more complex to install with a little more weight.

It all boils down to proper design...(engine too)

Don't get me wrong..superchargers work very well in specific applications.

[John Wright]

avoid the ebay turbo specials...as mentioned its not worth it when something goes wrong. For a couple of dollars more you can get quality stuff. That said there ARE good deals on ebay for turbo piping and connectors.

A single turbo adds complexity to your powerplant...twin turbos add more. The argument for twins has always been a quicker spool up, but a properly sized single can really spool just as quickly, and a larger single is actually more EFFICIENT. Not to mention less expense up front than twins. Twin Turbo sounds cool when you say it though.

As for whether they can stand up to track abuse...watch the following video. I think these guys are in Holland? I know that at least in europe they were a bit of a sensation. Anyway, their 1407 hp twin turbo knightrider style trans am has a few entries on youtube. Its fun to watch the smoke billowing from the tires as it accelerates after turns...lol.

http://www.youtube.com/watch?v=5S4KY5_nO_o

In fact, I believe the car was run at an event where they had the latest porsches practicing, and the drivers of those modern cars made impressive comments about the trans am......read it a while back so I dont recall the details.

heres another...

http://www.youtube.com/watch?v=ISk3zI2rpuM&feature=related


LOL...Polly lays down enough tire smoke where the competition can't even see their driving lines....Love it! In that first vid there is a silver car trying to keep up as Polly drives by and then you can watch it hang the rear way out and then end up spinning.

[Charley Lillard]

Hey thanks for chiming in Charlie.....do you have a car with that set up?....I know you have the ex Tony Stewart Nascar.....how do you like the engine in that?.......is it race gas because Ive sworn myself to building a pump gas engine.

What I have is Jackass. It is a LS9 Corvette ZR1 engine. Makes 703 hp on pump gas and gets over 20 mpg with the ac on. The LS9 can kind of be duplicated by doing a LS engine and adding a similar type supercharger.
Tony Stewart car engine is a race gas only engine.

[aronhk_md]

LOL John...those videos are fun to watch arent they? They abuse that car. Now if you want to see a turbo car that gets the CRAP beaten out of it........you HAVE to watch this...

http://www.youtube.com/watch?v=4TshFWSsrn8

0-60 mph in 1.9 seconds. And they used to say the AC Cobra 427's were fast...lol. Not to mention Ken's driving skills are just inhuman. I just watched it again...next time I think I need snacks and a big screen. I dont think he lets off the gas pedal EVER by the sound of that rev limiter.

[CarlC]

Hey thanks for chiming in Charlie.....do you have a car with that set up?.

Mine is similar to what Charlie describes. It's a lot of fun to drive. An LS3 with a Magnuson supercharger would have significantly more power than mine.

[overZealous1]

they sure can hold up to a beating. but, proper oil drainback and correct fittings and routing of oil lines is a big deal to reliability. keeping your oil cool is another. the oil will get heated even more and will thin out under prolonged beatings. thin enough, and well loss of oil pressure and oil passing by the seals will happen. oil and water cooling the turbo is a good way to go, but adds more fittings and correct routing of hoses. the key to longevity is basically those things. ofcourse a quality turbo, and an engine to handle it are obvious. correct tuning is key also. egt's in the 1600 range is too high for something you want to last. add more fuel.
header style manifolds with turbo on the end of them will need to be supported back to the engine. on every turbo system i do i mount the engine solid. it will keep the flex down in the joints lessening the chance of the tubing coming apart or leaking. all your tubing ends on the compressor side should be bead rolled. use good t-clamps. s.s. gaskets for turbo and w/g or file flushand seal with high heat silicone. a leak will kill spool up and boost overall. a bad leak, will make the opposite turbo make all the boost and compress it back to the other turbo (which will be making it spin WAY past designed speeds).
there is abit more. in other words, don't go cheap on your connections. keep your attention on heat control. do those, and you can beat the hell out of it.

[MonzaRacer]

Well I have been talking to a local guy with a GN turbo, and many of his friends are using Ebay turbos with no ill effects, but lots of people also say you need to get learned up to buy the right turbo.

[aronhk_md]

Well I have been talking to a local guy with a GN turbo, and many of his friends are using Ebay turbos with no ill effects, but lots of people also say you need to get learned up to buy the right turbo.

There are plenty of bad experiences out there to look up. When a turbo goes it can dump metal filings into the oil, which then drain back into your oil pan, which then...

...well, I think you get the idea. If you have nothing invested in your motor maybe its worth taking a shot with one. I know what is invested in my motor, and it isnt worth it to me to save a few hundred dollars by skimping on a turbo.

[protour_chevelle]

Not that I suggest the use of ebay turbos but we have a couple guys up here running the garrett 88mm ball bearing china knock offs and have been going strong for a couple years now. The key, atleast in my eyes and I have confirmed with precision turbos is, -4 feed for oil and a very nice easily flowing and large volume(I use -16) drain is what keeps a turbo alive. The seals are not designed for any pressure, they are simple designed to allow volumes to flow over and lubricate/cool the shaft. One car is a twin 88mm knock off turbo car that has been doing passes in the mid 8 second range for 2 years now. Street driven 3800lb car. Making some serious power!!

I myself abuse the ever living crap out of mine on a daily basis, well in the summer atleast. On low boost, junkyard 6.0l with a baby cam and arp rod bolts on 12psi the car made 600rwhp and 620ftlbs. I went 10.90@130 on 11lbs of boost. No meth, 91 octane pump gas. I had a meth pump die on me so we couldn't turn it up to the planned 18psi I wanted to run.

I say giver!!!! Even masterpower 70mm turbos are a cheaper route and are proven!!! You will not regret it. The car drives on the highway like a stock efi car. Then you pour the coals to it and it grabs the limiter in 3rd nicely and starts paving the road, with drag radials on the back:smoke:

[shmoov69]

Well I just bought a couple bigger turbos for the car....to "beat on" harder!! Lol!! They are not too much bigger, but they are t-3/t-4 super 57's with a bigger exhaust wheels. Hopefully add around 150 or so HP!! SWEET!!

[John Wright]

proper oil drainback and correct fittings and routing of oil lines is a big deal to reliabilityThis seems to be a theme in these replies about whether the turbos can be beat on or not.....
it must be worth the extra effort to make sure this is done right to get things to live for a long time.

[Procharmo]

avoid the ebay turbo specials...as mentioned its not worth it when something goes wrong. For a couple of dollars more you can get quality stuff. That said there ARE good deals on ebay for turbo piping and connectors.

A single turbo adds complexity to your powerplant...twin turbos add more. The argument for twins has always been a quicker spool up, but a properly sized single can really spool just as quickly, and a larger single is actually more EFFICIENT. Not to mention less expense up front than twins. Twin Turbo sounds cool when you say it though.

As for whether they can stand up to track abuse...watch the following video. I think these guys are in Holland? I know that at least in europe they were a bit of a sensation. Anyway, their 1407 hp twin turbo knightrider style trans am has a few entries on youtube. Its fun to watch the smoke billowing from the tires as it accelerates after turns...lol.

http://www.youtube.com/watch?v=5S4KY5_nO_o

In fact, I believe the car was run at an event where they had the latest porsches practicing, and the drivers of those modern cars made impressive comments about the trans am......read it a while back so I dont recall the details.

heres another...

http://www.youtube.com/watch?v=ISk3zI2rpuM&feature=related

Twin turbo's will give an amazing amount of power for the money invested. However although people have pointed out the heat issues which can be overcome. The less than precise power output to throttle input can have disastrous effects when on the limit anywhere but a straight line. As seen on the Polly Trans Am video they were able to smoke out the opposition on straight lines. But when they wanted to go faster they ditched the twin turbo's and installed a Procharger F3.

They may have made the same power but had less heat and more control....They went on to achive 252mph.....

https://static1.pt-content.com/images/pt/2010/11/transam1-1.bmp


They then went on to bring the car over to the US and win the SSCC...Making Big Red look slow with averages of over 220mph on twisty roads..


http://www.youtube.com/watch?v=r9lDlL1BVns&feature=channel

So in a nut shell. Yes you can beat on TT's but if you want to go fast under control get a fixed relationship between the impeller rpm and your left foot.

[overZealous1]

^ puts an end to things quick when you snap a belt though. which i have done. 1600 miles from home i might add. that sucked!! carried an extra belt with me after that.

i look at the tt as more of a street car set up than all race. sure, big singles in supercharged or turbo set ups make big power, but offer limited fun for the guy going stop light to stop light or wanting good passing power without a downshift. the centrifiguls still only make power in the upper rpms and have similar torque curves to a single turbo. look at a well set up twin, and your bottom end grunt can be outrageous. great for the street car.

[aronhk_md]

I agree that you can achieve a more linear power curve with centrifugals, but dont necessarily agree that its better for any type of racing. The owners/builders of Polly changed setups, but who is to say how they would have fared with the turbos on the car during those events.

I also don't believe that twin turbos are necessarily any better than a properly sized single for low end response. I've seen data that suggests otherwise, and a single turbo is definitely more efficient than a twin design, just as a single prop on a boat can be more efficient than twins.

Oh..............and I have seen and heard of MORE than 1 incident involving belts on centrifugal superchargers. They are terrific power adders, but each type has its own pros and cons.

I think the answer to the original poster's question has been answered though :D

[shmoov69]

Well, just wanted to update. I just put on the new turbos that I got and drove it around the block. I have done ZERO tuning, just switched the turbos. The boost went up a couple pounds with all the same settings and it feels like it has a little more lag. I will prolly need to add some timing down low to help that. But with no changes, it is quite an increase!! With the seat of the pants dyno, I'd say 75 -100 hp!!!! But that is a guess just from how it pulls in high gear after it hooks!!
Going from a stock T-Bird T-3 to a T-3/T-4 Super 57 compressor and a Stage 3 exhaust side really makes a difference I guess!! I'm anxious to drive it some more and hopefully do some tuning on it in the near future!

[shmoov69]

drove it some more tonight..........oooooohhhhh, it pulls!!! LOL!!