AMong, you may be just the messenger here, posting for someone else, or could this be your car? Congrats to whomever for having the nuts to TT a GT, however have you looked at the pics of Heffner's system?
Those of you who understand the quality difference and know of Jason's workmanship, please help enlighten the GT owners over at www.fordgtforum.com where some may not be so familiar.
Those of you who understand the quality difference and know of Jason's workmanship, please help enlighten the GT owners over at www.fordgtforum.com where some may not be so familiar.
Done. Comparing the above to the Heffner TT is kinda like comparing a bottle of horse piss to a nice chardonnay.
Asthetically - I have to agree with you all - the Heffner piece looks so much better.
Part of the problem with highly exposed twin turbos is the inability to get reverse rotation turbo units - making perfect symmetry impossible...
and if you can't get it perfect - trying to get close usually just looks wrong.
Having said that - in terms of function - that setup should be very efficient as long as you can keep intake temps down. Afterall - pressure drop should be way better compared to other TT systems - simply because there is so much less plumbing to navigate.
Looking at the graph - it does make great power in the racing rpm range - but here's the the real interesting thing:
psi for psi - despite LOOKING MORE EFFICIENT (just because the plumbing is so much shorter and straighter without intercoolers) - it makes no more hp that what I'd pick the Heffner system will make at 18psi... so in fact it is not as efficient as it looks
I'll qualify that with one thing - that car ran on pump gas we're told.... was the Heffner car run on pump gas too? If so - the intercooled Heffner setup is just as efficient!
If there was 100hp+ difference at 18psi like I'd have expected - that'd be worth it to many folk. If however power is about the same at similar boost - who would not want the prettier setup?
I know I'd go for the better looking setup if the power was even close.
For those that don't know - with a really good high volume water injection system - no intercooler is needed. The problem is that you need 30% water as fuel by volume at WOT - and that requires a bit more than the typical single pump water systems deliver.
Last edited by Torquemonster : April 24th, 2006 at 05:43 PM.
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--- > Heffner's Work -- He is un-surpassed 
I desire to have heffner TT my viper so bad I can taste it.
