Road Race Camaro.. TT Block Choice?

[camcojb]

I don't think you need an aftermarket block at 1000 hp, Kurt (W2W) had no problem with my stock LS2 block at that level. Still doesn't as he's spec'd another for Troy at 800 rwhp with the stock LS2 block, no ERL prep, nada.

My two cents.................

Jody

[deuce_454]

im having several thoughts on this... the first is that if 2600 is a huge deal... twin turbos propably isnt the right choice.... which leads me to the second argument, that twin turbos, while trick and cool, propably isnt the right choice anyway, if you want to go track, you need to be concerned about weight... very concerned, and adding pounds is like subtracting horsepower, not to mention tirewear and poor handling.....

my bet is that if you built a light weight camaro, aluminum/CF front end, power nothing!!! manual tranny (possibly a sequential race unit) lightweight driveline and a race spec LS7 (which will be closer to 750-850 FWHP depending on how much "race" you want...) you will be able to do faster laps than with a 1000 FWHP 4l80e monster... (a 4l80e weighs 254 lbs wet!!!) a TT setup propably adds well over 100 lbs...

and a kinsler IR setup on a built LS7 in an engine compartment that screams race is just as impressive! even more so IMHO!

anyway... thats just my 2 cents...

[gearhead1186]

Originally Posted by camcojb

I don't think you need an aftermarket block at 1000 hp, Kurt (W2W) had no problem with my stock LS2 block at that level. Still doesn't as he's spec'd another for Troy at 800 rwhp with the stock LS2 block, no ERL prep, nada.

My two cents.................

Jody

You've had no problems? No head gasket problems, pushing water, or strength of the aluminum at the power level. 1000fwhp seems like a lot for a stock sleeved aluminum block.

Originally Posted by deuce_454

im having several thoughts on this... the first is that if 2600 is a huge deal... twin turbos propably isnt the right choice.... which leads me to the second argument, that twin turbos, while trick and cool, propably isnt the right choice anyway, if you want to go track, you need to be concerned about weight... very concerned, and adding pounds is like subtracting horsepower, not to mention tirewear and poor handling.....

my bet is that if you built a light weight camaro, aluminum/CF front end, power nothing!!! manual tranny (possibly a sequential race unit) lightweight driveline and a race spec LS7 (which will be closer to 750-850 FWHP depending on how much "race" you want...) you will be able to do faster laps than with a 1000 FWHP 4l80e monster... (a 4l80e weighs 254 lbs wet!!!) a TT setup propably adds well over 100 lbs...

and a kinsler IR setup on a built LS7 in an engine compartment that screams race is just as impressive! even more so IMHO!

anyway... thats just my 2 cents...

I wouldnt mind paying 2600 more if that is what is required but over at ls1tech, is seems like the erl prepped block is more for 1/4 miles cars running way more than 1000fwhp. It just seems that a stock ls2/ls7 or lq9 would suffice for the power levels I want.

Im not building a dedicated track car as I want to have a/c, decent sound system, power brakes, power steering. I just want to run it around the track and be competitive.

After the feedback I got over here and at ls1tech I have it narrowed it down to...

-->nasty NA ls7 matched with a t56. are you talking about the clutchless jericho and liberty trannys? (how do you figure 850hp NA ls7?) I would be more than happy with that but I havent seen any NA with that kinda power.

-->a turboed ls2 with a 4l80e paddle shifted.
-->a supercharged ls2 with a t56 (little better on weight)

Lets hear opinions between these.

Thanks again for all your feedback. Appreciate it.

[gearhead1186]

Just thinking about a supercharged ls7 as it has dry sump oiling.. would be light, dry sump oiling and since its not turboed I can back it with a lighter t56.

MTI Racing has put an eaton tvs blower on an ls7 and made over 800fwhp.

http://www.ls1tech.com/forums/corvet...ti-racing.html

Katech makes an Air Attack ls7 with a magnuson up top that makes 750hp.. should be too bad to bump it up to 800 and change.

http://blogs.gmhightechperformance.c...ine/index.html

Procharger claims 820rwhp with a F1 on a modified ls7

http://www.procharger.com/C6_LS7.shtml

Sorry if it looks like Im going back and forth, I just wanna get every option out there and hear everyone's feedback.

[deuce_454]

for track duty.. the throttle response of a positive displacement blower and a manual tranny will work and feel much better... it will feel less "nice" and more aggressive than a turbo and a paddle shifted auto.. but it depends on what feel you want... magnusson LS7 and t56 is a totally different animal from a twin turbo & auto.....

[gearhead1186]

thanks for the feedback. I think I was trying to do too much with one car... hence the high hp twin turbo and the auto tranny. tryin to make it a good road course car and good 1/4 mile car all at the same time.

ls7 with a blower is a much lighter and easier setup then a twin turbo ls2/lq9.

Not worrying about 1/4 time and consistency, the t56 is an easy choice since its more fun and lighter.

Thanks again guys. Any suggestions on blowers, procharger, kenne bell, eaton?

[gearhead1186]

Since its a road course car, the ls7 appeals to me since it has dry sump oiling but Im kinda scared to put too much boost through it. ls2 has a little more meat on it.

Any opinions? 800rwhp is fine with me.

[Blown353]

Originally Posted by camcojb

I don't think you need an aftermarket block at 1000 hp, Kurt (W2W) had no problem with my stock LS2 block at that level. Still doesn't as he's spec'd another for Troy at 800 rwhp with the stock LS2 block, no ERL prep, nada.

My two cents.................

Jody

Yep. I told Kurt I wanted about 800rwhp on pump gas for my new turbo LS2 (that's about 950 crank)...

Kurt spec'd me a STOCK block and a STOCK GM crank.

Kurt said both the factory block and crank will be plenty adequate at this power level, he has used the both reliably above this power level and advised me to save my money or spend it elsewhere.

As you approach 1350 hp / 20 psi of boost or so, a stock 4-bolt LS can start pushing coolant out-- that's where the LSx and 6 bolt heads shine.

Kurt is modifying my LS2 block with piston oil squirters though-- I asked if he could modify the block with squirters and he said yes-- so I said go for it. They are a very good idea for any forced induction build-- nearly all factory FI engines have piston squirters. The new NASCAR blocks have 2 squirters per cylinder. If you're going to track the thing, you absolutely positively want them! Really helps the pistons out and also keeps detonation away by maintaining piston temps.

With 1000fwhp on a track, I hope you are planning on a very large cooling system. Cooling 1000hp in a prolonged sustained use environment is NOT going to be an easy task...

[BBC69Camaro]

Originally Posted by Blown353

With 1000fwhp on a track, I hope you are planning on a very large cooling system. Cooling 1000hp in a prolonged sustained use environment is NOT going to be an easy task...

I have always wondered what those guys do for prolonged cooling, especially in a hot climate.