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AWSOME effort Gav.

500 RWKW! GT-RS who, what, where? :nyaanyaa:

One thing you have not mentioned is comp surge. Does it have any? Please say no!

What compression ratio is your 2.8?

:worship: :worship:

Paul

Absolutely no compressor surge. These are like the GT-RS terbs top end with the 2530 bottom end response.

The final max HP figure on E85 was at 26 to 27 psi.

I can't help wondering what the GTX2860R units would be like north of 30 psi :dry:

For the other question of comp ratio - standard HKS Step 2 kit so should be 8.7:1.

My engine has now seen 4 hard seasons of motorsport so when it's time for a rebuild it's custom pistons to 88mm in a sleeved block with a 9:1 (or higher)comp ratio.

Funny thing is, your RS's were not making this peak figure. The RS's 'felt' faster because it didn't make it's power to so much later. Haha.

It's fantastic that there is no surge!!!! When will you do a 'hero' run to show what these babies can do?

The 60 mm versions would be interesting. Come on sooner with a tad more top end over the normal 5's?

How do they sound?

I found a big difference between RS's and the 5's. Are these different again?

Hmmmm.....bit difficult to say as the induction piping and air cleaners are changed. My guess is that they are quieter. Was a bit busy trying to keep the car on the black stuff today :-)

Hey gav, can you please confirm your diff ratio and tire size? i'd like to plot your tq curve with rpm

it looks like you have about 504 ftlbs at 3800 rpm at 23psi on bp98. oh my.

Edited by black bnr32

Hey gav, can you please confirm your diff ratio and tire size? i'd like to plot your tq curve with rpm

it looks like you have about 504 ftlbs at 3800 rpm at 23psi on bp98. oh my.

GTS4 diffs = 4.375

265/35x18 tyres = 641mm diameter

Thanks!

It doesn't hang around does it!

Love the idle at 2.05 too

Never seen an Evo trying to be a Zebra before either haha

It is an amazing car, 2.4L, GT42 turbo, sequential dogbox, massive euro brake package, carbonfibre everything $$$$ the Zebra that is..

Edited by tricstar

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