I have the Paxton 9psi supercharger with the "base" Predator Tune. Yesterday I took it to AZ Dyno Chip to have it tuned using the SCT software. I went from roughly 371rwhp to 437rwhp (more tuning left to due on Tuesday as we couldn't finish).

We did a run with the "base" SCT Tune, then the next run with the CCM Throttle Body. Gains in the upper rpm ranged from about 18rwhp to 23rwhp (plus or minus). We didn't do any cooldown or anything else besides wait about 10 minutes, let the car idle for a bit after startup, then do another run. We didn't have much time so we went into more tuning perameters. But it appears you're going to see roughly 20rwhp with this throttle body with no other changes on a blown '05 GT.

Cost? $499. The TB is like a piece of art. It really is as nice as they say it is. My car is black so I went with the black anodized. Now, that's not to say that something like the BBK isn't as nice. It may produce more, the same, or less HP. I have no idea there. But for roughly 20rwhp, I'd say my money was well spent!

 

On a blown GT the throttle bodies are going to make a difference. Nice numbers right there for the price but I think we'd all like to see the complete graph.

-Dan

 

I wonder how they would do on a n/a application. Once I get my Heads ported, Cams, LTs and CAI I will be out of mods and I'd like to be over the 400rwhp mark n/a.

 

No can do on the complete graph. My goal wasn't really to show the gains from the TB. I was there to get a new SCT Tune and thought while I was at it, that I would do a back-to-back run and check out the actual gains. The TB gains where up in the rpm range, say, 4,000rpm on up to the shift point where it appeared to be around a 25rwhp gain. Supposedly they're seeing roughly 8rwhp on a stock car. But stuffing another 180 plus rwhp through the blower, then through a better more open TB is bound to see some good gains.

 

G./J Weedo That make me just that more excited to get mine on.

-Bryan

 

You are dreaming! The most you will likely see from a NA 4.6l 3-valve GT with a 5 speed even with all of the BEST bolt-ons including: a good CAI kit with a well sealed intake, LFP 62mm TB, Steeda CMCP's, SCT or Diablo ECU programer, good long tube headers like JBA's, X pipe w/high flow cats (hey I gotta breathe this stuff!), Meziere electric water pump, Plasma Booster etc. and a set of well ported gasket matched heads on a good day using SAE correction calculation method is about 350RWHP or so.

If you are hoping for more you will need very hot cams (that give up idle and driveability along with mid-range torque for high RPM power), and a custom dyno tuner that knows how to manipulate the cam timing in addition to the usual fuel, timing and other driveability items. This car won't be much fun to drive on the street though but you might get and other 10HP out of it.

Hope this helps.