So I'm planning on going big turbo down the line and the two kits that I'm planning on running are either the Full-Race or Sheepey. I know both are different in their own ways but I wanted to get a general opinion on why one kit over another. I will be going for the bottom mount twin scroll or V-band (stock location kit). I am not looking for FF kits. I do know that Full race run two external WG while Sheepey runs only one (WHY? ANY BENIFITS?). Please keep any negative or non helpful comments to yourself as I am looking for proper knowledge into building the car right way that I want it. Thank you

SOME FACTS ABOUT MY FUTURE BUILD: I will be shooting for 500-600 whp. It is not my daily but has been from time to time. I currently have not seen a track day but have been dying to do so (this will not affect my goals or what I want out of the kit).

 

ive had both...

both made good power.

when it comes to looks, i like the sheepy better.

 

Twin gates is to control boost creep. Single gates tend to creep pretty bad.

ETS is another one to look at.

A Vband Precision Gen2 5558 or Garrett Gen2 GTX3076r will make the power you're looking for.

 

@hutch959 couple of question: How long had you run both kits and how much power were you putting down. Also can you tell any major difference in the kit where one may be more beneficial?

@letsgetthisdone Thanks for explaining that. I personally have been leaning towards the Full race kit because ive ran their manifold before. As for turbos ive ran the GTX3076 on my previous evo and supporting mods and I dont know if it was just my car or if it was the tuner but he didnt push more than 378whp on 91. I dont think e85 would have added enough to get me to a 500-600whp goal. But the EFR turbos that Full-Race offer seem promising.

 

There's no reason for a GTX3076 to not make over 400whp on pump gas. There's a car here in Vegas that made 460 on 91. Stock motor and small cams too, just HKS 272's.

 

Twin scroll would be the best option for either option.

i had both kits for about 2 years... on different cars
both were twin scroll big turbo.
both made good power.. hard to compare my turbo numbers because build and turbos are different.

 

The smaller turbos don't need it, and aren't even offered in twin scroll. Once you get into bigger stuff (62mm+) twin scroll is certainly the best option.

 

true... but he posted he was going to go big turbo....
??

 

He wants 500-600whp. That's not a big turbo on E85.

Unless he wants to run pump gas, but that's kind of terrible idea on the stock motor. A stroker with all the goodies and a 6466 will make ~550 pretty happily on 91. I just did it with a 2.4LR and a 6466.

 

You should be using a properly sized twin scroll 3582.

• Less back pressure
• Twin scroll response
• In some cases +50 hp vs ss in the left side of the curve
• Stressing things less to make your power goals
• Headroom
• Egt control

With that in mind we chose a full race ts manifold. Sheepey didnt offer that. We are shooting for 550 in 93 2.4 lr.

 

If you go down the path of a single scroll, v-band setup, check out RS Motors in Minnesota. Their kit is based around the Garrett reverse rotation turbos (allows for a better flowing manifold due to the stock turbo placement, note stock turbo is also reverse rotation) and they used it on their One Lap of America car. They placed pretty high last year, I think taking the class win and top-5 overall. Can't remember exactly though.

 

Morrison Fab

 

The only reason I was looking at v-band was for the fact that I hate how the bolts seize and snap a lot! so that was just a convenience factor. I personally love the twin scroll I know that it does perform slightly better than a single scroll. As far as turbos go, I was just going to go with what was offered right off the websites. so if anything it would have been the EFR 8374 1.05 for the full-race and the Precision 6062 on the sheepey. I Love the GTX35r turbo and thought of buying all the supporting hot parts and just piecing it together to use that turbo as well.

@211ratsbud can you send me a link Im open to options
@spdracerut send me a link as well please

 

my main concern at the end of the day was the kit itself though... Im more looking at the benefits of one kit over another. I know thats opinion based and all but im looking at the facts. Such as any issues you've seen as far as cracking or like how @letsgetthisdone explaining boost creep and how that effects power. This is what I want to focus on more as of right now. But I love all the feed back I am getting. Thank you guys for being supportive!

 

Look no further than a simple independent test.


https://dsportmag.com/the-tech/twin-...-great-divide/

Then you can search through dyno results and find the curves you like . I use the following as a guideline. We have No head work but we have a 2.4lr.

https://www.evolutionm.net/forums/ev...cing-head.html