My pulley and tune is nice but considering an upgrade to a Whipple or Ken Belle.
Any input appreciated
Any input appreciated
Correct. KB doesn't have SC application for the GT. Even the snout is out of production and the same as a pulley upgrade anyway.
Only 4.0L Whipple is available. I would recommend 19psi pulley and tune from Torrie. I would be happy to source the parts for you.
1) 19 psi Whipple 4.0L
2) SCT + Torrie custom tune
3) NGK TR7IX plugs
4) MAFia (required)
5) Accufab inlet support (highly recommended)
6) Accufab TB (not required but looks nice with Whipple)
If you wanted to go with a 21psi 4.0L I would recommend adding the KB BAP. Also, I would recommend a custom dyno tune session (with Torrie) where data can be captured and verified that there is enough fuel availability the engine. I wouldn't ever recommend the 4.0L 21 psi without the dyno and data logging as too many issues already reported.
Drive both first. Then you'll only spend once...
Indeed
After a few discussions with some gt guys, I am leaning towards the Whipple 3.3
Agreed that the downside of the TT is expense. However, it is all bliss after that. Dial down to 16-17 psi to mill around town on 91 octane and a mere 800 or so RWHP and knowing that you can rip anything that comes your way. Put it on a road course all day long on 15 psi and never overheat and enjoy a very predictable boost curve. Go to a mile venue one day or a quarter mile, and dial up 22-23 psi with 117 Octane fuel and 1050 RWHP and have a truly unforgettable experience.
The TT's can be so flexible because you can so easily adjust boost pressures (and HP) for the venue at hand. In fact, for the street, I'd probably run it at the bare minimum of 11-12 psi (wastegate spring pressure) which is a psi or two less than stock but 700 HP and 630 TQ (at the wheels)! MUCH easier than even the stock blower on the engine and longevity.
Drive both first. Then you'll only spend once...
Indeed
You make some very good points... I like the engine longevity part the best.
We are talking 15-16k?
Which model is the whipple?I just went TT (still installing) and has got a black Whipple with 19psi pulley and 750HP for sale;-)