turbos get very complicated very fast..


im looking at gt30r with the internal waster gate option

 

turbos dont get to complicated if you dont do those gay ass calculations cause you can screw yourself if your off by a significant number, bring back any memories derek?.........just keep it simple, if you have stock b series honda, get a t3/to4e, if you have a built motor and want to make some massive numbers, get a big t4 or a 60-1, keep it simple.......thats the way i do it anyway.......

 

f series biotch is it better to buy a kit or custom?

 

due your earlier response:

you may want to go with a pre-fabbed kit.

and i'm not really sure where i learned anything about turbos.. i'm just a nerd i guess.

 

i still dont know shit about cars really, just the basics for my accord. after the cam gear and pulleys go on ill be lost when i due the fuel system and computer stuff

 

GT3037s on a log manifold @15psi made 392
GT3037s on a log manifold @20psi made 457

so i was thinking bigger turbo on a equal lenth manifold could make an easy 400rwhp at 15psi maybe even 13psi. So i picked up a PT61(sc61 with a Ptrim T4 turbine)

PT61 on a equal lenth manifold with a bomb ass 4-1 collector in my avatar made 385rwhp @17psi.

so i thought it was the lenth of the runners keeping exhaust heat from the turbine, there fore robbing shaft speed. i built a new short runner manifold with the same collector. Didnt do a DAMN thing.

so, i turned out with less hp, more lag, more boost. But i did run 10's. i went to big on the turbine side.

i gave the fuck up after building the new manifold and not making a difference, said fuck it to all my calculations and theories. now i just throw shit at the motor and see what works.

seems to do well since the white car is scaring the shit out of me at 10psi.

 

And what turbine are you using on the white car now Derek?

 

too big of a one. but i was lucky to choose a divided inlet turbine housing.

Its an "O" trim T4 in a .70 housing. but the changes to cams and timing maps really are making a difference.

 

That is pretty big. I though you were using something much smaller.

 

i could use something smaller I MIGHT make 5-10hp but i dont know because of the manifold is a divided outlet.

other KAT's out there with T3 turbines make about 220@5psi and 250@9psi

i made 212@5psi and 250@10psi. that was the stock motor.