A new turbo....PTE's 6870

G37Sam · 05-14-2015, 06:03 PM

Can you share the compressor maps you're looking at?

HOODEY · 05-14-2015, 08:08 PM

I tried using a gt3582 which is a common turbo for this size engine but looking at the maps
this does not seem a suitable match at pressure ratios of 1.6 and high flows (500 to 600hp)

The gt40 seems a better match

Seems like the low pressure high flow is really not the best for efficiency.

Perhaps this is all theory but something does not seem right when operating at low pressure ratios.

05-14-2015, 06:03 PM	#1 (permalink)
G37Sam A True Z Fanatic Join Date: Dec 2008 Location: Dubai, UAE Posts: 1,507 Drives: RB'd G37 Rep Power: 21	Can you share the compressor maps you're looking at? __________________ '14 Viper GTS '08 RB'd G37S - Sold

05-14-2015, 08:08 PM	#2 (permalink)
HOODEY Base Member Join Date: Aug 2013 Location: Barbados Posts: 41 Drives: Uk spec 08 350z gt Rep Power: 12	I tried using a gt3582 which is a common turbo for this size engine but looking at the maps this does not seem a suitable match at pressure ratios of 1.6 and high flows (500 to 600hp) The gt40 seems a better match Seems like the low pressure high flow is really not the best for efficiency. Perhaps this is all theory but something does not seem right when operating at low pressure ratios. Last edited by HOODEY; 05-14-2015 at 08:31 PM.

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