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Garrett GTX4594R. It has high efficiency at the high pressure ratios you'll need to hit 900whp. It also has a big turbine in the back end to reduce back pressure. Plus the sizing the of the GT45 turbine wheel to the 94mm compressor wheels gives near ideal blade speed ratio for the best turbine efficiency possible which equals more power.
I would ask English Racing, they built your motor and have plenty of experience with big power builds. 6870 in T4 twin scroll would be a good bet. I don't think FP offers the supper 99 with a twin scroll housing.
Last edited by letsgetthisdone; Apr 1, 2016 at 09:34 AM.
Garrett GTX4594R. It has high efficiency at the high pressure ratios you'll need to hit 900whp. It also has a big turbine in the back end to reduce back pressure. Plus the sizing the of the GT45 turbine wheel to the 94mm compressor wheels gives near ideal blade speed ratio for the best turbine efficiency possible which equals more power.
A 6870 will boot stomp this turbo in both power and spool up.
If someone one would by my bnib 6476 v-band in/out kit I would go 6870!!!!! But my stuff is bnib and I refuse to take a loss, so I'm stuck with it lol
If its still BNIB and you don't have over a year with it precision might take it back and if you loose some money it wont be much. I mean they would exchange it for what you want.
Yea but I already ceramic coated the exhaust housing. I also need to sell the bnib sheepey kit too, the manifold and o2 are also ceramic coated.
Edit: I just got off the phone with Precision, and with somwone who owns a 2.3l 4g63 powered car that has ran both these turbos and yea I'm gonna rock out with the 6466 because - street car lol
6870 is way better than the garrett turbo mentioned, and great for the track or someone chasing a high number from a turbo that will spool faster than it's competition. It's just not for what I love to do with "my" car.
Last edited by Migsubishi; Apr 8, 2016 at 07:37 AM.
Reason: Been on phone with precision since this was posted
I would also do 6466 over the two options you mentioned for a fast street car build. Impressive spool and still good power potential.
It sounds like the op is building a race car, so hands down 6870 for him!
Now for that make your passenger almost wet themselves from a light or low roll with the ac on in your dd, The people who try, run,use and sell these turbos say 6466 all day long, and it's a 900hp turbo!
Super99 is stock frame and 1000hp capable...don't sleep on it. The downside is the insane lag. Me personally, my FP Black is already getting boring...I'm going 6466.
Super99 is stock frame and 1000hp capable...don't sleep on it. The downside is the insane lag. Me personally, my FP Black is already getting boring...I'm going 6466.
Mar 31, 2016, 07:18 PM
