Nissan 370Z Forum - View Single Post - Greddy Twin-Turbo In Development

Sharif@Forged · 07-29-2009, 04:01 PM

20G's are used all the time on the 350Z. We've run even larger turbos on the VQ37 VVEL, and I promise you spool up and powerband isn't going to be an issue. Keep in mind, all of these turbos kits are using very small T25'ish sized flanges, so exhaust gas velocity isn't much of an issue.

I would much rather take the larger 20G over the more restrictive 18G. Compressor charts only tell you so much, but power output and spool vary drastically based on the application you are putting the turbocharger on.

07-29-2009, 04:01 PM	#83 (permalink)
Sharif@Forged The370Z.com Sponsor Join Date: Dec 2008 Location: Marietta, GA Posts: 840 Drives: 2009 GT-R, 2010 370Z Rep Power: 17	20G's are used all the time on the 350Z. We've run even larger turbos on the VQ37 VVEL, and I promise you spool up and powerband isn't going to be an issue. Keep in mind, all of these turbos kits are using very small T25'ish sized flanges, so exhaust gas velocity isn't much of an issue. I would much rather take the larger 20G over the more restrictive 18G. Compressor charts only tell you so much, but power output and spool vary drastically based on the application you are putting the turbocharger on. __________________ Sharif@Forgedperformance.com General Manager/Certified Tuner/NASA-PCA-BMWCAA Instructor JRZ RS1's Available NOW...PM me Cobb ProTuner, Uprev ECU Flash, FCON Vpro, Haltech, Motec Certified