GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE

Mike · 03-13-2010, 11:29 AM

Quote:

Originally Posted by LiquidZ

They mentioned they had a CBE well before the press release.

and really, have you ever heard of anyone who went forced induction and kept the stock exhaust?

LiquidZ · 03-13-2010, 11:49 AM

Quote:

Originally Posted by Mike

and really, have you ever heard of anyone who went forced induction and kept the stock exhaust?

CARB people

Zsteve · 03-13-2010, 02:10 PM

Quote:

Originally Posted by LiquidZ

CARB people

which is why GTM did thiers that way, now we need a new dyno with CBE

Phimosis · 03-13-2010, 02:49 PM

Quote:

Originally Posted by LiquidZ

CARB people

Don't need a CARB expemtion order for cat-back-exhaust. You do need them for hi flow cats and headers though.

Another side note: CBE exhaust are only good for about 5hp based on dozens of before and after dyno results. An yeah, I get that a SC engine will flow more exhaust and be more restrictive, but it's going to be how much, 7hp difference?

Another side note: There's no way to know which kit is making more power without running them back to back on the same dyno. I have seen as much as 40hp difference in readings on my own car based on temp, alt and dyno manufacturer differences. One of my dyno guys says you can tinker with the settings to get the dyno to read higher or lower as well.

Zsteve · 03-13-2010, 03:25 PM

Quote:

Originally Posted by Phimosis

Don't need a CARB expemtion order for cat-back-exhaust. You do need them for hi flow cats and headers though.

Another side note: CBE exhaust are only good for about 5hp based on dozens of before and after dyno results. An yeah, I get that a SC engine will flow more exhaust and be more restrictive, but it's going to be how much, 7hp difference?

Another side note: There's no way to know which kit is making more power without running them back to back on the same dyno. I have seen as much as 40hp difference in readings on my own car based on temp, alt and dyno manufacturer differences. One of my dyno guys says you can tinker with the settings to get the dyno to read higher or lower as well.

A CBE is more like 15 hp on a stock engine, atleast thats what FIs and Berks and allo them dynos show. HFCs installed after a CBE is about 5 hp.

agree about the dyno, Ive been trying to get an answer on what dyno GTM used.

OMG37 · 03-13-2010, 05:54 PM

Quote:

Originally Posted by Zsteve

A CBE is more like 15 hp on a stock engine, atleast thats what FIs and Berks and allo them dynos show. HFCs installed after a CBE is about 5 hp.

agree about the dyno, Ive been trying to get an answer on what dyno GTM used.

DynoJet...and they are located near Ontario, CA.

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