Anyone ever use larger then a 90mm on a boost application with our trucks.?
Trying to compare a 90/92 to a 102mm set up, or a Dual 78mm bore t-body.

 

I picked up a couple of psi, because my throttle is on the inlet side, going from 78 to 102 mm. Because the IAC circuit is way too small on the FAST 102, I think dual 78s is a good idea.

https://www.performancetrucks.net/fo...d.php?t=458677

 

I think Parish8 did the dual 78mm tb on their drag wagon. Sorry I really don't know much about it though.

 

Dual bores 1 tbody.

On that 102 did you have issues with idling?

 

Yeah, the colder the worse. The hole that the idle air goes through was so small that the IAC counts and the commanded idle air only matched up when the engine was fully warmed up. The counts just were a constant 300 until the engine got to maybe 150 degrees, then they started dropping.

 

There are some throttle bodies available through KENNE BELL that should fit the bill nicely, but fitment would be an issue for most folks, except those using one of their larger “Mammoth Style” superchargers. Of course Rick could probably do wonders with one of these things and make it fit most anything.

110mm single blade, 1710 CFM (Only one of the DBW models that are a direct fit on GM vehicles) Fit’s “Mammoth Style” superchargers with the 110MM X 158MM/168MM opening.

110mm dual 75mm bores, 1880 CFM (800RWHP RATED) Fit’s “Mammoth Style” superchargers with the 79MM X 168MM opening.

168mm single blade, 2150 CFM - 2350 CFM (1100RWHP RATED) Fit’s “Mammoth Style” superchargers with the 79MM X 168MM opening.

For comparison purposes - Stock 2010 Camaro 90mm, 1147 CFM

I believe all of them are also available in a cable operated version.

 

I am running a PTW 95mm on my KB with no issues.

 

I wonder if this one would work on the DBW trucks with the Torque Rush X-link thingy????

 

It should, as it’s listed as being for the 2010 + Camaro’s. Only real issue would be mounting one.

 

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