Too Much Horse Power?

[shmoov69]

Wow! 2800 lbs!! With a good driver, and a perfect car 650 would be unstoppable! But for a medium grade in both, the 550 would still be a rocket! So after reading more, I'm assuming it is a track only car or what are your plans in the end with the car?

[Gitter Dun]

Wow! 2800 lbs!! With a good driver, and a perfect car 650 would be unstoppable! But for a medium grade in both, the 550 would still be a rocket! So after reading more, I'm assuming it is a track only car or what are your plans in the end with the car?

Car currently weight's in at 3220 lbs. I imagine the aluminum block motor will eliminate another 100 lbs. That gets me to 3120. I have fiberglass doors and hood from VFN that should drop me to 2920. I had the doors and hood on before and I made doors operable but at the time I couldn't afford the nascar bars and paint so I through the steel back on. Car is registered for street but its going to see a lot of track time.(Hopefully) I dont plan on final paint and interior until I'm 110% sure I'm done with track days.

[garner67]

...I dont plan on final paint and interior until I'm 110% sure I'm done with track days.

what, What, WHAT?!!! When will you ever be done with Track Days?!

My long term goal will be having both a dedicated track mule as well as a nicely built street fighter.

[Gitter Dun]

what, What, WHAT?!!! When will you ever be done with Track Days?!

My long term goal will be having both a dedicated track mule as well as a nicely built street fighter.

LOL, thats a fantastic plan Garner, but I like my insurance rates where they're at. Think I'll save my street fighting for the track

[CarlC]

Yeah, an addict putting down the crack pipe. Like that's gonna happen!

[Rod]

to MUCH power!! you guys are damn funny!!!!

[JEFFTATE]

I'd go with the torque-ier (at lower RPM )engine of the two..
It'll last longer , you'll get better fuel economy, it'll run cooler, it'll pull out of the corners better.

[Gitter Dun]

I'd go with the torque-ier (at lower RPM )engine of the two..
It'll last longer , you'll get better fuel economy, it'll run cooler, it'll pull out of the corners better.

I talked to the engine builder today, we haven't gotten down to the details yet, but basically it's a crate 427 aluminum small block, 550 hp with hydraulic roller, but he told me he would put a solid roller in it for me and it would yield close to 570 hp. That is most likely the route I am going to take. Looking to start ordering process on Monday.

[Crazy Carl]

I've never driven anything other than a crash truck around a race track, but for what it's worth I have a lot more fun on my low torque 69.8 hp bike than my big torque v-twin. The 570hp option seems like the best route, especially from a liability standpoint. If your car is mostly stock then the bigger power might start twisting it up. Tires get really expensive when you're crossing it up comin' out of turn 7 at Sears Point.

[twosaturns]

order it w/ 650hp and run it w/ a restrictor plate

[The WidowMaker]

id stick with the 550 and the HR before i stepped up to a SR for only 20 hp more. theres nothing better than not having to deal with setting lash.

what was the plan to get it to 650? if its just moving the rpm band up and getting a good number, then the 550 would probably be best.

[Gitter Dun]

id stick with the 550 and the HR before i stepped up to a SR for only 20 hp more. theres nothing better than not having to deal with setting lash.

what was the plan to get it to 650? if its just moving the rpm band up and getting a good number, then the 550 would probably be best.

Going with solid roller cause I heard that hydraulic rollers fall off at higher rpm, at Infineon coming out of turn 11, when I reach turn 1 I need to spin about 7300 rpm before I head up the hill. I will probably not gain any power from 6800 to 7300 but Im hoping I could comfortably keep my foot to the floor till I start heading up the hill.

[Gitter Dun]

order it w/ 650hp and run it w/ a restrictor plate

I ordered engine on Monday, shooting for 580 hp. If I get my car down to 2800 lbs I should be able to lay down some solid times at Infineon and Thunderhill. My new time trial class is TTU, U standing for unlimited modifications. With aluminum block, fiberglass doors and hood, and aluminum flywheel I will be down to 2900 lbs. Shouldn,t be much harder to find another 100 lbs to lose(rear deck lid, rear lexan, euro bumpers). I will be moving from this forum to project updates. I'll keep ya'll updated from there.

[Vegas69]

Average power wins. I have an all aluminum 489 ZL-1 big block that makes 666.7 hp and 641 ftlbs on 91 octane and 34 degrees total. It's not radical by any means. This thing makes power from 2500-6800. I ran El Toro last weekend and left it in 3rd for the whole road course! Turned a 1:50 lap and left some on the table for sure. The low end torque was plenty to get me out of the slower corners and it zinged up top. Back to my orignal comment. It's what makes the best average power unless you're Boris Said and your chassi can handle the extra power. I'm here to tell you that my hp level is managable but you better be paying attention and have some hellacious brakes!!!!!!! I don't thing you can have to much power as long as it's managable. Meaning naturally aspirated and your foot is used to the modulation.