Any turbo Basics?

[Project69]

Just wondering if there are any NewB turbo basics out there for a TT set-up?

Should the block be O-ring
How much boost for the type of cylinder heads, comp. ratio., fuel
Intercooler size needed for amount of CFM flow
BOV and Wastgate reccomendations

Im just curious to see what parts ill need to gather up for my build. Also since its gonna be rear mount, how would i go about plumbing the oil system for it? Would i need a 12v pump to return the oil?

If anyone has a build sheet of the engine and parts they used that would be helpfull. Im planning on going with Twin T-3 Garrett turbos not sure of the trim yet.

Rob.

[LS1NOVA]

Is it in the 69? Why in the back? As far as books, look up Corky Bells book on Turbocharging. Also go to Ls1tech and read the stickies in the forced induction section. Check out Turbomustangs.com, there is a lot of general info there also.
You will need a scavenge pump to return the oil if its in the back. It they are in the front and higher than the return on the engine, it can be gravity drain. People seem to like the Tial 50 for a BOV. Turbosmart also has nice stuff. Stay away from Ebay crap although people have proven that the intercoolers on there will be ok for most mild setups and the piping kits are not really too bad.
Pump gas can typically be used up until around 15 psi if its an efficient setup with intercooling of some sort.
Good luck with your build.

[Project69]

Thanks, and i want them in the back because of many reasons to do with heat, and i dont want to have to fight my way around 2 turbos to change my plugs lol

[Turbo Hen]

www.theturboforums.com for some good reading, and not taking away from any members here of course...just saying there's a LOT of info & a site based on turbos.

I run a 400" SBC twin turbo system with a carb (blow-through)

Very streetable, very efficient & very good mileage are the benefits of a turbo car.

For Wastegates/BOV's, you need to choose the turbos first then work from there. Intercooler size is dependant on flow, etc..

By the way, i run my turbo's under a STOCK '69 T/A hood....170* all day long & plug access is a breeze......design the headers to sweep up & forward as this will be much easier for plug access. It take me no longer than 5 min to change all my plugs.....

[bigdaddyvu]

http://www.khturbo.net/
http://www.camarotwinturbo.com/newindex2.html

[Chrisbequick]

Please, please, please do not do a rear mount. There's been a ton of debate and everyone has their opinions, but there are a few facts that youneed to keep in mind. First, you HAVE to use turbos built specifically for a rear-mount setup. Second, a rear-mount system WILL NOT make the same power as a comperable front-mount setup. Third, most turbos will not interfere with plug changes. Depending on the setup it can be EASIER than a factory set-up. On my '95 Camaro it's actually easier to change the plugs with the turbo setup than with the factory manifolds.

-Chris

[racereno]

Do the rear mount...but the turbos do have to be spec'ed for it. Talk to STS, they have a proven oil system and turbo size upgrades.

[DeltaT]

I highly recommend Corky Bell's book on turbocharging "Maximum Boost", available from Amazon.com for about $20.

It has turbo sizing, intercooler design and sizing tips, mounting, plumbing, efi, boost control and a lot more.

Jim

[Texas Hotrod]

A friend of mine bought all the parts and I did all the fab work on his 3rd gen Camaro.
Master Power twin T-70s, 406, Dart block, Pro-1 heads, Victor Jr, CSU Holley 850, etc,... It is o-ringed w/copper head gaskets. He has a lot of good info posted on his site, w/some vids and a lot of pictures.

http://www.bartonekdragracing.com/twinturbo406.html

Vid of the initial run-in w/open down pipes, vid dated 1-18-2007. http://www.bartonekdragracing.com/twinturbo406.html

Later mid-boosted run (first vid). http://www.bartonekdragracing.com/bdr_main.html

It's amazing how tame the thing is when idling/cruising around town. When you step on it, it really becomes a different animal. He has it at 10psi for now. When it comes back for tuning, it'll be set up to 15psi. Should be good for 800 HP.

Making that much power is surely fun, but it can get ugly really quick. Things happen pretty fast. The car and the rest of the powertrain needs to be capable of handling that much power as well. Tranny, differential, suspension system, brakes tires, ... It needs to be a complete package, not just a Herculean engine.
It also takes a certain savvy to set it all up and make it work. Then there's also the electronics and supporting systems that go along w/it.

I designed the headers/piping for ease of maintainance. Changing plugs on this car is way easier than what it would be on a stock IROC/Camaro. A wrench a socket and about 20 (maybe more like 15) minutes is all it takes to do a plug swap. Pulling the valve covers to check valve lash? No problem, there's nothing in the way.

I'm so impressed w/the performance of his car, I'm building the same combo for my 68 camaro.

Hope your build works out,
Gene.

[josh@scotts]

do a rear mount dare to be diferent , i gotta nissan pick up with a rear mount so much horsepower and more controllable than a basic setup alot easier to drive on the street just be careful with the horsepower in 3rd and fourth its a doosey!!

[LowBuckX]

With the long run of pressureized tube is an intercooler nessisary? How much boost loss is there from front to back? If you add a intercooler to that how much added loss would there be? Ive been contemplating a single rear turbo with a pressure chamber around a q-jet.

[josh@scotts]

i dont know about pressure loss i dont really care i just turn up the boost till i like it , but its intercooled and i just like the fact that its in the bed and everyone likes it ,its different.. you still should run an intercooler though just to keep the intake even cooler !! remember pressurized intake can get up to 325 degrees!! cooler is always better!! does someone rework q jets for boost ?

[racereno]

i dont know about pressure loss i dont really care i just turn up the boost till i like it...

Now that's what I'm talkin bout!!!