hmm.. never had anyone explain things to me like that...when I asked RNR about which turbo to buy for the street...meaning no race gas, no alcohol injection they recommended the cheaper dualbb 50trim compared to the 3071 or 3076 stating it will spool like the 3071, so none of the lag of the 76 but with almost as much power capability especially when only using pump gas as the 3076 shines more the higher you turn the boost, race gas/alcohol.

 

also it would be interesting to know if the TT turbo is actually different since I didnt come across anything saying it was or wasnt.

 

Good thread. I too am at this point. Looking for something to get into. So far I'm thinking 3037 kit, but if you get a better solution, than I may more than consider changing my mind.

 

I think some good info would be of use to many people. Ive searched thru several threads and havent really found anything conclusive.

 

I searched to try and find specs on the TT 50trim but couldnt find any.

 

I too am deciding between these with the intention of 99% pump gas and no alcohol. I'd like the viscious top end of the 35R but know that it will not come alive at the boost pressures I'll be running regularly. I have almost settled on the 3076R for the best compromise in spool and top end but could be convinced otherwise. I'd love to hit 500whp on racegas and a good 400 and change on pump and have seen these sorts of results from the 3076R with reasonable supporting mods.

Tom

 

I have a turbotrix 50trim and it is a dual bb innovative 50trim to Mark's specs and he will not give up any specs to it. I am positive that the rnr kit does not run the same 50 trim turbo on their kit.

I know a lot of the guys that I have talked to with the kit are making between 470-490 on 93 oct and meth. To my knowledge I am the only one with the kit tuned for race gas. I have not dynoed my car yet but it pulls pretty good on race gas and 30lbs of boost.

 

I think the GT35R is the only way to go when going with a turbo kit. Otherwise I would say stick with the stocker or maybe 20G or WR....

~fred

 

Well, if he refuses to build his engine and run over 500 whp, then whats the point of the 35R?

Sounds like a 50 trim or a 3037/3076 will get him to the limit of his engine and meet his goal, I think he should use one of those.

 

I think the stock engine can take a GT35R setup with up to 30psi......

EDIT: Reliabilty "might" be compromised slightly but so would it with a 50 trim or anything else really......
Several people on this board have daily-driver, 500whp+, stock motor EVO's.
It just doesn't make sense to me to cap it off at that number.

my 2 cents

~fred

 

I would go with a gt3076r. Thats what I went out and brought. When I was deciding on turbo's, lag was a factor and I also wanted a usable powerband. I have a 3076r with a dash 13 cartridge, to4s cover and a .82 hotside. Now this turbo will be a little laggy but it will be a mid - top end monster. The gt35r is a good turbo for all out power. I will be using either Meth or Alky in order to acheive 500whp. Btw the turbo I have is a True Garrett Turbo, along with a True Garrett turbine housing.

 

I agree with this, I dont plan on using race gas or alcohol injection and wont be building up the engine at all, so a 35R is overkill, id be paying more for it and dealing with more lag than the other turbos to get the same power level. I guess its still not clear to me which would spool faster, the 50trim dualbb or a 3076/3037, although trying to piece together info, it seems the 50trim would spool faster and produce less power but with a goal around 425/450 I should be able to get there with either turbo.

 

well, ive made a final decision on the turbo and I went with the 35R. Just because it will flow more at the same psi and since i only drag race the fact it spools later is really not that important for me. Also on the occasional freeway pull I wont be out of boost at all so the faster spoolup of a smaller turbo doesnt help. I liked the idea of a quicker spooling turbo but in the end with the type of racing I do the 35R is a better choice. Plus, I guess i can always have the room to uprgrade the engine and add alcohol injection if the mood strikes me in the future.

 

You might as well go with a standalone soon since those 780cc injectors arent gonna cut it for a high boost GT35R setup.....

 

Im planning on the AEM EMS soon along with a clutch as im sure my stock one wont last very long...I just need to save a bit more cash so I can buy them both. Does anyone know if the stock clutch will even last thru tuning the AEM?