Anyone try a Whipple+TT Combo

[lthlvpr]

I know there are quite a few GTs running around with the stock supercharger+TT package. Has anyone tried a Whipple + TT option? Someone had mentioned to me it didn't work as well as the stock supercharger, but it didn't make sense. If the Whipple can push more air and has more capacity, I would think that it would offer more power and torque than a TT/stock supercharger combo.
Any thoughts?

 

[DoctorV8]

Torrie tried this, and I'm sure he'll chime in. IIRC, the whipple rotors tolerances are tighter than the stock blower, making it difficult to "blow through."

 

[Indy GT]

I am a bit confused here...

I do not believe the twin turbo guys are running the turbo output pressure into a supercharger input....!

At least the Jason Heffener setup I have seen replaces the stock blower with a new custom inlet "box" which sits atop the OE inlet manifold. You may be consusing this box looking structure with the OE supercharger.

I do not think it makes much sense to have both air pressurization systems working in parallel. But you TT guys correct me if I am wrong....

 

[tmcphail]

It's been done and works well with the stock blower. Although I personally love the turbo's alone and its how my car currently resides

Scroll down you can see here and you can see my car in a variety of forms including TTSC with the stock blower

http://www.unleashedtuning.com/content/view/10/17/


Ray's car TTSC with the stock blower as well

http://www.theddddirectory.com/showcase.php?item=63

 

[Ed Sims]

turbo supercharger

I wanted Soroush to do it but he hasn't yet. The plan was turbo supercharger with nitrous!

Ed

 

[tmcphail]

I wanted Soroush to do it but he hasn't yet. The plan was turbo supercharger with nitrous!

Ed

Ha !

 

[Indy GT]

Thanks Torrie, I just did not realize owners wanted both. And before I read through the info I wondered how you could get enough octane to surpress detonation with the heat-of-compression both from the turbos and the OE supercharger. But I see you plumb in an additonal intercooler between the turbo out and SC in which makes sense.
Thanks for the info!

 

[tmcphail]

the additional IC was on ray's car only. My car and others use the stock IC setup. And there is no appreciable increased measured heat with 3 compressors over 2 surprisingly enough.

 

[soroush]

I wanted Soroush to do it but he hasn't yet. The plan was turbo supercharger with nitrous!

Ed

I wanted to do it Ed, but Im holding out to see what the 4.0 liter whipple does.

 

[tmcphail]

I wanted to do it Ed, but Im holding out to see what the 4.0 liter whipple does.

I have done it. My car was in that form for a day and returned to TT only and remains that way today.

 

[Empty Pockets]

I do not think it makes much sense to have both air pressurization systems working in parallel.

I've always felt the same ... especially given what SHOULD be awfully "tight" rotor-to-case clearances (Whipple OR stock) for the turbos to 'blow thru' and hence, logically, not anywhere near the total efficiency one might expect in theory. That said - I'm no engineer.

BUT - no one can agrue about the fact it darn sure looks impressive as all get out!!!!!! :banana :thumbsup

'Can't think of the fellow's name right now, but, there was a street rodder about 20(?) years back or so who mounted a 6-71 FORWARD of the engine in his nineteen eighties-ish "Pro Street" Olds 2-dr and fed THAT with twin turbos. To my knowledge no one had ever done that B4 he did...at least in a STREET car. (The "front drive" for the blower was off an early T/F dragster. Several of them ran that 'drive setup "back in the day".)

 

[tmcphail]

It depends on what your end goals are, it works and does so quite well I have the data to prove it at least combined with the stock blower.


With various pulleys and pressure levels you have the ability to bridge the low RPM lag with the blower and use the turbo's for power up top. In the end you have parasitic loss to overcome with the blower involved.

TT = less power down low more power up high
TTSC = A lot more power down low and less up high.


Me, I would much rather deal with the loss down low and have it rip my head off 4000-7000 RPM.

 

[Mullet]

Me, I would much rather deal with the loss down low and have it rip my head off 4000-7000 RPM.

count me in this camp too.

 

[HHGT]

And exactly which tires will one be using for a SCTT application? You fellas have far bigger gonads than I do...

 

[tmcphail]

And exactly which tires will one be using for a SCTT application? You fellas have far bigger gonads than I do...

I have been running Hoosiers for years

 

[Mullet]

Hoosiers half the time and Pilot Cup Sports the other half.

 

[Indy GT]

........
Me, I would much rather deal with the loss down low and have it rip my head off 4000-7000 RPM.

Torrie, I am in the same camp here. One pressurizing system is enough and although maybe a bit compromised in the low rpm range, it sure comes on line mid-high rpm range.
Thanks for sharing your information and educating me as to the options!

 

[tmcphail]

Torrie, I am in the same camp here. One pressurizing system is enough and although maybe a bit compromised in the low rpm range, it sure comes on line mid-high rpm range.
Thanks for sharing your information and educating me as to the options!

No problem at all ! Like I have always said it really comes down to personal taste. Some like the hard hit down low, for me once I rode in Joe's GT back in April of 2006 the game was completely over and my perspective forever changed.

 

[smallblk400]

Thanks for sharing your insight & testing out so many different combo's for us!!!

 

[kumar]

I have been running Hoosiers for years

I'm loving these things. They hook up 900rw in 1st gear once warmed up.