special tool

Well, yeah...
that and I cracked open the beer can or 2 last night....

Talking about TB.

Tom M'Guinn

Well, if you know of another 928 TB with a chunk of hollowed-out Edelbrock cam wheel welded to it, I'd be pretty impressed!

333pg333

We can assume that by merely installing a larger TB without other supporting mods (larger i/c & pipes, modified inlet, modified head, bigger turbo, more boost etc) that we are not going to make any significant gains?

special tool

Yes, that is correct.
But if you do everything at once....well - be carefull what you wish for.

333pg333

Well if you do it all at once AND have the ability to tune with a standalone, then it should allow us to get more hp at the same boost level should it not? Plus increase the potential spread of power, but if EVERYTHING is bigger is there a chance of shifting our peak power to the right?

V2Rocket

it would make sense to me that if everything along the path of air was made larger you could get more HP from boost because there would be more volume to fill and thereby more air, obviously that only works until the air gets inside the intake which is the same size but if there is less backpressure in the piping, turbo outlet, intercooler, and a less restrictive TB it should help a bit

333pg333

I think unless you improve the VE of all the components, then you are going to create a bottleneck which could prove counter productive?

V2Rocket

from what i can tell the bottleneck would be the in port on the intake manifold, but the SFR manifold solves that problem with a bigger port and a bigger TB

Duke

Tom, looking forward to the next dyno chart. Hopefully you will go to the same dyno and run the same boost for a good before/after comparison

Lance J

does lart know you guys are using 928 TB on 951. lol hey lart sic'em!!!!!!!!!!