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Yes, that was my point, I forgot to write the rest of it out...guess I was out to lunch or something...
If you want anything over 480whp, go with a gt35R, you will most likely want more power once you have 450-470 and will thank yourself for going with the 35R so you can push that envelope a little further.
Lag is overrated and so is spool time. Sidenote: I've decided to jump over the 35r and move to a bigger turbo for my next setup.
The question is do you want a dyno queen or a capable street racing car.
Go with the larger flow if you just wanna shoot the sh*% with the boys and say you have 600hp but if you actually want to drive down the street and race either from a dig or from a roll get something wit ha smaller a/r. I feel that the .63 is great for our cars. But again this is just my opinion don't get upset over it.
I want a capable street racing car absolutely... I dont HAVE to reach 500... I was just hoping it was possible if I ran a 19-20psi aggressive tune on 93 octane and meth injection... also fperra has a post suggesting that pre-compressor injection of meth/water increases the long windedness of your turbo effeciency map by 10%... I was hoping all factors would add up to be enough. I am running the InlinePRO 3" SS exhaust and all supporting mods for turbo... im not building my bottom end this time around but will be using the IP 3mm HG and am having Alaniz rebuild my head for me with a full port and polish, including oversized valves and double springs... the whole nine. So you all still think I wont hit the 500s?
Originally Posted by SPECIAL-OPS-S2K,Aug 2 2007, 08:56 PM
I want a capable street racing car absolutely... I dont HAVE to reach 500... I was just hoping it was possible if I ran a 19-20psi aggressive tune on 93 octane and meth injection... also fperra has a post suggesting that pre-compressor injection of meth/water increases the long windedness of your turbo effeciency map by 10%... I was hoping all factors would add up to be enough. I am running the InlinePRO 3" SS exhaust and all supporting mods for turbo... im not building my bottom end this time around but will be using the IP 3mm HG and am having Alaniz rebuild my head for me with a full port and polish, including oversized valves and double springs... the whole nine. So you all still think I wont hit the 500s?
No, I don't...less you turn that methanol into N2O
so... if i run the inlinePRO cast mani and 3" single exhaust... w/ a fully built and ported head... through a ported and polished intake manifold running a 70mm BDL throttle body and a 3mm HG... AND I use 50/50 Water/Meth injection direct port and pre-turbine... what numbers would I expect if I were running the .63 or .82 A/R?
I was looking to run 19-20psi on 93 octane w an agressive tune...
Originally Posted by slimjim8201,Aug 2 2007, 08:08 PM
I'm with you. Even with the largest A/R turbine housing, I seriously doubt you will be able to reach 500 rwhp with a GT30R, certainly not with the Inline manifold. 2NR Werks came pretty close with a tubular manifold, but to give you and idea of what happens when a turbo runs out of steam, check out the plot below...
The compressor cannot move the amount of air needed to reach your goals. You'd need 62+ lbm/min and a GT30R is going to max out in the low 50s. You'll need a GT35 sized turbo.
Hey Slim, I've been trying to search for the 2NWerks setup but couldn't find it, do you have a link to where that dyno came from? Did they use a GT3076 with an A/R .82?
If you want 500 hp, the SMALLEST turbine a/r you should consider is the 0.82 a/r GT series housing. The GT3076R can and does make over 500 whp with the correct setup. There are many, many dyno graphs of that over on Evans Tuning. I have included a link to their tech article on the GT30R vs the GT35R. There is much more info in their forums.
well I think that I'll just go with the GT3076RB w/ the .82 A/R and see what I can make....
Although, I would like to hear feedback / comments from those out there that have had the GT3076 and moved up to the GT35... what differences did you feel... is the lag / street race ability of the car suffer majorly or just slightly... any comments or experiences would be great!
Also if I were running the 3mm HG and 50/50 water/meth injection... on lets say 92-93 octane street gas... approximately how many PSI would be kosher? 19-21? or more because of the detonation protection provided by the meth injection? when I tune I am going to tune one for 12-14psi (hopefully 350whp or so) and one for my MAX high performance tune... 20psi or so and hopefully REALLY CLOSE to the 500's. Just curious how far you can push the stock bottom end when using the 3mm HG and water/meth?
