Whipple questions...

[BAT]

Close to pulling the trigger and adding a whipple so I have a few questions:

1. Is it worth the extra 2g to go with the 4.5l as oppose to the 4l?

2. Carbon fiber inlet tube or inlet support?

3. Accufab monoblade TB? How is it at idle or at low speeds?

4. Diablo MAFia?

Any other advice / suggestions are welcome...



Thanks,

Brian

 

[nota4re]

I'll take a swing...

1. No. Unless you have a very specific application where you HAVE to have an additional edge.
2. Aesthetically nice (in the eyes of some). Very marginal, if any performance improvement.
3. Early on there was some teething pains but pretty sure all ok these days.
4. This is dependent on the tuning strategy and how much boost you select (pulley size). Almost certainly the MAFia will be REQUIRED.

 

[peiserg]

I say go for it, and then in the future you can up the boost. I paid $5k for my intake and saw minimal improvement on the same dyno. It looks cool, but is it $5k cool with minimal power gains? Hmmm.... I bought it for the power, so my answer was no, but that's personal question. Oh. You just meant the support. Not the full intake.

 

[2112]

Pieserg, was that the GTG intake with the filters out behind the rear wheels?

 

[nota4re]

I paid $5k for my intake and saw minimal improvement on the same dyno.

Worse still, the dyno might have been the place where you see the most gains. Typical dyno scenario is clamshell open with large fans blowing - which is quite a different scenario than when the car is underway with a completely sealed undertray.

 

[roketman]

The Gt’s cooling system is not designed to cool 750hp. If you are going to drag it go for it .But generally speaking the whipple can cause over heating when used on the track

 

[SMOKDU]

Worse still, the dyno might have been the place where you see the most gains. Typical dyno scenario is clamshell open with large fans blowing - which is quite a different scenario than when the car is underway with a completely sealed undertray.

I lost over 5 psi boost with the clamshell shut with the stock airbox . Here is my advise

I have a 4.0 and love it but you will need a few more things

1. Bigger injectors with a boost a pump. (Don't forget to put bigger fuel pump fuses in
2. I would go mono blade with carbon inlet. It will idle fine if the tune is right .
3. Mafia
4 Tuner sct
5 torrie tune
6 holes in the airbox because the bigger whipple pulls a lot of air thru those small clam shell holes. I have a box drilled I can trade you.
7. Better rear tires

If you go to the bigger 4.5 you will run out of fuel and will need bigger fuel pumps (big job) and if you are going to keep the boost lower anyway the 4.0 be enough . I made a custom air box and inlet like the gtg one but I made my mass air meter housing bigger so I do not need the mafia. If you need anything else let me know.

Mark
Smokdu

 

[BlackICE]

How about a beefed up crankshaft snout with the bigger blower? I'm running a old Gen 1 and it doesn't seem to be at much of a disadvantage if you only run 91 octane. With better gas you can use more boost and the bigger blower is going to come out ahead.

 

[SMOKDU]

How about a beefed up crankshaft snout with the bigger blower? I'm running a old Gen 1 and it doesn't seem to be at much of a disadvantage if you only run 91 octane. With better gas you can use more boost and the bigger blower is going to come out ahead.

With the 4.5 I would think a double key way or a pinned on crank pulley would be a good idea. I have the pinned on one.