GTM Performance Engineering Stage 1 Turn key Supercharger kit In house Installation.

CGMobile370Z

With the LTH and VVEL there was not enough back pressure with so much valve overlap to build much boost. I think they said the S/C would only build 4 psi with LTH and CBE.

Sam, I still don't understand why the shop car made 8psi + 450whp and Shumby car is only at 6 psi + 390whp. Is it the CBE or just the tune?

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370Z Touring/ Sports Package/ Stillen Gen3 Intake/ Stillen HFC/ NST Underdive Overdrive Pulleys/ FI Cat Back Exhaust/ Custom Headlights

SAM@GTM

The 6 psi is purely related to the size of the pulley right now, We could have gotten more psi by going a smaller pulley, also we have to remember that the 390 RWHP is equivalent to about 410 RWHP on a M/T car .

You can get more boost by going a smaller pulley but for a guy that drove 2300 miles and waiting on his car in hotel room on us to finish the work, I felt the 6 psi is playing it safe right now. there was no room to for anything to go wrong .

Sam

MMC Racing

Big mistake on his part. When you take your car significant distance to have a specific shop do the work, it is silly to take the ultra conservative route. He could have found joe blows shop down the street to do that. He should have planned it out better so you had all the time you needed to take this farther.

390 is a ho-hum number and I look forward to seeing future builds at 8PSI+ on a G37 before I make my choice of kits.