Gtr 4 Inch Exhaust?

[Luke_ENR34]

If i can find a cheap pair of -5 or -7 for now i'll use them and keep the RS's for when i do the 2.9. I just didnt wanna chuck the stockies on and and blow a motor and turbo at the same time.

[N1GTR]

Just sick of trying to help (by using real world results) and advice not being taken on board.

[10 4]

Just sick of trying to help (by using real world results) and advice not being taken on board.

There there....

Edited June 27, 2011 by 10 4

[Gav]

Funny enough just got off the dyno today after fitting M&W CDI unit.

Anyway, the graph R31Nismoid was referring to was up to:

One curve was GT-RS twins, 137mm thick Apexi drag intercooler and Greddy plenum, the other was 2860-5 twins, 100mm HKS cooler and Nismo plenum. I'll let you work out which is which.

The graph below is the same setup, but now on E85 and M&W CDI as fitted today:

PS - I like E85

[r33_racer]

Thats quite sexual!

[Nee-san]

Thats quite sexual!

I would go as far to say that it is highly sexual Lol.

[Piggaz]

Gav, what sort of boost were you shoving down the throat of your engine? There will be another comparison soon between RS's and 5's.

[r33_racer]

Definitely highly sexual! The curve just makes the car seem intimidating.

If its the same as the first graph then 24psi it looks like?

[Piggaz]

If i can find a cheap pair of -5 or -7 for now i'll use them and keep the RS's for when i do the 2.9. I just didnt wanna chuck the stockies on and and blow a motor and turbo at the same time.

$2600 new from GCG -10% If your a club member, Inc GST.

[R31Nismoid]

Fken hell Gav... That is insane! huge gain in the mid

[Gav]

Gav, what sort of boost were you shoving down the throat of your engine? There will be another comparison soon between RS's and 5's.

Still running 24psi. The ethanol just seems to accept more and more timing. The big fat spark from the CDI helps the tune significantly in the mid range also.

[Piggaz]

Gav, when are you making 24 psi in 4th? It would have to be on like donkey kong close to 3600 RPM going by that ripper of a graph!

[blue_vl_t]

awsome result, you want to post the rest of the engine specs?? what ignition timing were you running on boost on 98 fuel 574hp, nice, i likey

Edited July 1, 2011 by blue_vl_t

[bigmikespec]

Fken hell Gav... That is insane! huge gain in the mid

Huge... 40hp? It is a good improvement; you must be easily excitable

[blue_vl_t]

Huge... 40hp? It is a good improvement; you must be easily excitable

at 121kph, the difference is over 150hp, not sure where your looking???

Edited July 2, 2011 by blue_vl_t

[R31Nismoid]

Huge... 40hp? It is a good improvement; you must be easily excitable

40rwhp more = 30rwkw more

You don't get that kinda gain dollar for dollar as easily hehe, very excited. You'd feel that driving around for sure, plus the pickup you'd think would be quicker too.

[bigmikespec]

at 121kph, the difference is over 150hp, not sure where your looking???

At the graphs... maybe you should look again.

It is a "standard" gain/improvement from switching fuels.

[MrStabby]

At the graphs... maybe you should look again.

It is a "standard" gain/improvement from switching fuels.

Check the GT-RS to -5 comparison on the top graph, some of the comments are aimed at that and others at the fuel change, tho the comments havent been clear on which they're referring to.

[r33_racer]

Mike, most are referring to the difference from gt-rs to -5 results on that one graph as MrStabby stated. That one is an impressive difference. The gain from fuel change is quite normal.

[bigmikespec]

Mike, most are referring to the difference from gt-rs to -5 results on that one graph as MrStabby stated. That one is an impressive difference. The gain from fuel change is quite normal.

Ahhh, noted