This is the BR gt67p trm with the t4 flange, or Buschur's 37'R. The only thing the motor was opened for was the cosi cams. I love the turbo for now and once the motor is built, it will be an animal revving to 9k. As far as drag goes, its a consistant low 11sec with mid 120 traps. I also drive it on the street and it cruises just fine, you have all the power you need above 5k. Let me know if you have any specific questions about the turbo or set-up.

 

So yours fully spools at 5k rpm?? well im gonna get the t3 style so wont it spool alot faster?

 

Right about 5400 it smacks 30psi and its just fun from there till I shift. I personaly dont feel the T3 style will be worth the money over the 35R its not that big of a change. If your gonna do it, might as well go all the way.

 

Ok so should i do yhe t3 style 37r. ill be upgrading the valve springs to squeeze a little bit more rpms out of the motor

 

You see what I went with, I love the turbo and it loves RPM. It will make power as high as you want to rev it. Go for the big one!

 

the 500+hp you made was it on a really agressive tune or conservative? also was it tuned on 110 when you made the 504hp? i probably will do the 37r because i will be doing the 2.3 stroker when the motor pops lol.

 

No it wasnt that agresive, and yes I did use 110oct. for the tune. I run the 110oct all of the time, for safety sake. I dont have to ever worry about a meth kit failing and it runs a little bit cooler, and thats a good thing for living in south Florida. It was decision to stop at 500whp due to the stock bottom end, I want it to last for about a year before I build it. This turbo likes to be above 30psi, so I've just started to get this thing warmed up.

 

I have a t4 pt67h big 37r and with a 2.3 my car gets full boost 350 rpm later then my old 35r on a 2.0 but at the sameboost level 29psi the 35r did 518 whp and the pt67h did 590whp both were on pump/meth these are dynojet numbers.

 

cool so you guys think i should do the t4? why? wats the big difference from the t3

 

on race gas and supporting mods what can a 35r max out at hp wize????

 

The 35R is a 65lb. turbo so it should max out around 6ish on a 2.0ltr. I would think. The 37R or the pt6776 p trm is a 73lb turbo so, high 6's low 7's. It all depends on mods and motor size ect. ect. Its to hard to give an exact number.

 

In a t3 style, you wont see the full potential of the size of the front wheel cause the smaller backside will hold it back somewhat.

 

I understand that the T4 footprint will be better up top, provided that you can rev up there, but what's the spool difference between a t3 and a t4 37R.

I think for strokers, the faster to full boost the better on larger turbos, since strokers can't rev high as a 2.0.

I "think" strokers with ported head, smim, bigger TB and cams can take advantage of a 37R in a T3 housing. With a T4 37R you are pushing full boost further into the revs with the mods mentioned above.

I would like to see some data on spool difference between the housings and difference in powerband also.

can someone post up some data on t3 37R?

 

i dont understand why you are upgrading your turbo when you are barely using your 35r?

waste of money. make that 35 work man.

 

ok i bought the gt3782r wat do you guys think?