not sure where your experence is coming from but your not going to see those boost levels on pump gas with one of these motors.

i have a prety big intercooler and my limit on 92octane is ~11psi. add in a fair amount of meth and that bumps it up to ~16psi. add in some 114octane and i can go ~20psi. at that point i am running out of fuel so i dont know if i can go any higher or not.

 

According to Jose at forcedinductions the only difference is the wheels inside the housing so I dont see how its not a direct swap.

 

The downpipe flange on the 88 is a 3.5" where the 76 is a 3"

 

Somebody needs to tell forcedinductions that then, they told me that if I bought a pt76-gts that if I wanted to go to a pt-88 all they had to do is changed out the wheels.


Thunder you may also look into the S80, the more I look at it the more I think I want it. They have the new borg-warner wheels in them which make more power AND are louder

There is an S85 too I believe. The price is just a bit more then the pt76-gts and the pt-88.

 

I'll check that out too. I'm also going to talk to Jose and see if I could get closer to what I want performance and driveability-wise by going with twins.

 

What do you guys think about me running twin T04B's? Will this get me closer to the sub-2500 RPM spool I'm looking for, and will it do the power levels I'm looking for?

 

Specs on the recommended TO4B:

59mm wheel

Turbine
P trim
.96 A/r housing

Compressor
H trim
.70 A/r housing

 

boost level depends on the timing. you can run crazy boost with not timing, you just won't make any power.

most of my experience comes from four cylinder car, however there shouldn't be a difference as far as tuning goes. an engine is an engine. gas is gas.

there is a difference in ve usually between v8's and 4's, i will admit that, but it shouldn't change the tune.

you may start to ping at 11psi due to your tune. you might be able to run more psi with cooler intake temps, lower compresson and less timing. depends on what you want to do.

you could be right with these engines not being able to take that much boost, but concluding what an engine can and can't do based on just personal experience doesn't do it for me.

i know you make a ton of hp, i've seen the videos. in fact, your videos are one of the reasons i'm switched to trucks.

don't take this as an insult. i'll do a little more research.

sorry for the hi-jack

 

I am running very low DCR of 7.0:1, that's one reason I think I might be able to get away with more boost.

 

compared to the t76 i had wich i believe is a direct swap for the gts76 the pt88 has the 3.5" outlet and that outlet is farthur away from the t4 header flange than the t76. the bearing section is also bigger pushing the compresor out an inch or so wich may or may not effect how things fit under the hood.