Quote:
Originally Posted by Phimosis
Dreamer,
You claim to be unbiased and neutral and not promoting GTM or Stillen, but to claim that everything is "working as intended" with your GTM kit is biased and not accurate. Your kit was intended to make 8 psi of boost. You get 5 psi. Your kit was intended to make 450 hp. Yours does not, or you would have posted the results. Even if you made 400 whp you would be happy and would have posted the results - you have stated that 400 whp was your goal. You state that the fix is a simple bolt on, but a kit that "has no problems" and is "working as intedended" should not need a fix. Regardless, the fix has been in the works for 4 months and is still not done.
The truth is that the GTM stage 1 unit is just a little undersized for the 370z so that it produces good midrange power at the expense of peak horsepower. With the GTM unit, it starts falling out of its peak efficiency range when you try to push it to 8 psi of boost at the high flow requirements the engine has at the redline. The Stillen SC is a bigger unit and makes less boost in the midrange, but more in the upper rev range when the SC gets into its peak efficiency. I have headers and cats and exhaust and the Stillen kit still makes 9 psi of boost.
I make my comments based on the data. That is the idea behind being unbiased.
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What is wrong with my kit?
Oh I am not making 8PSI because of my long tube headers, you claim you have headers and HFC, congrats but you
still have major restriction which creates back pressure. Do you even know how LTHs will alter a SC unit, go spend some time on an American car forum and talk to a few of them about SC & LTHs, I did so I got an understanding of what to expect. I knew ahead of time I was going to lose boost and would most likely require a smaller pulley to bring it back up. I cannot magically wish for Sam to drop everything and provide me with my every need & want for this car, he has a business to run. We got the kit running and viable with the LTHs and wanted to see how much it altered things.
My 400whp, who said I was not at that? No one knows my dyno results but me and one other person at Baker Tuning. I will not post my results until we are able to get back to 8PSI because
that is what people want. If we are unable to because the unit is to small and have to go back to a more restrictive stillen header/HFC setup then we will.