GTM Performance Engineering: MHI Twin Turbo Official Release

conmam

No I have not. I am still building up my savings for this kit. I addition to that, there are SO MANY other things that need to be properly modified in order to reliably accommodate this future 500whp on my Z. Believe me, those costs are at least the same or more than this kit. Got to work hard for this my friend.

V1H

can u share your list of mods you plan to do?
I'm still in the process of figuring waht's essential to support this kit (more specifically the due MHI kit).
As far as I understood it lacks an oil cooler but ought to be safe for a stock Z?
Cheers

BlkNismo

^for starters

32 Row Oil Cooler
Clutch/flywheel/csc
1 step colder spark plugs
Intake plenum gasket
exhaust manifolds gasket
misc fluids
Electronic Boost Controller
downpipes/test pipes
catback
Gauges
Bigger Radiator

V1H

Ah yes sure, common sense, even to me Thx m8

The choice of exhaust is still my greatest cause for headache.
Naturally I'd want a 3" catback to maximize turbo efficiency, which I only know the Greddy Turbo Ti-C has. But I don't like its sound. In fact, I haven't yet found a single Z exhaust with the right noise. I've been heavily pampered by ferocious VTEC screams of my nitrous battered Stage2 3/4 Race motor and look for a good race noise for my Z. But working on a £3k Honda is a different matter. I wanna leave my Z engine untouched. And test pipes are no option towards that goal. I got to be able to pass M.O.T. of course.

Cell

I believe the Greddy TI-C is 2.75".

Fast intentions makes a 3" exhaust setup.

BlkNismo

That is accurate.

I tossed around the idea of running full 3" turbo back, but it being my primary car, i dont think i want all the noise associated. was very close to pulling the trigger on the fast intentions exhaust.

I have since sold the gtm downpipes and have the z1 testpipes and will run oem nismo catback.

Should be sufficient. Dont plan on running more then 7psi with stg 1 gt28's on stock block.

TerribleONE

The turbos really quiet the car down, and if you are still concerned with the noise level you can go with their HFC option that is located in the lead pipes to make it even quieter.

__________________

V1H

Not quite, the Greddy Turbo Ti-C comes as 3" as featured on Nissan's Project Z car, the non-turbo Ti-C has 2.75".
Would be interesting to 'hear' the 3" F.I. exhaust. It's non-resonated? Though, I only find the 2.5" TDX catback on their web page with a video of the (very quiet) 12" resonator option.

Would you consider the downpipe or test pipe to make more noise? Don't u have emission problems with the TPs?

BlkNismo

Would you consider the downpipe or test pipe to make more noise? Don't u have emission problems with the TPs?[/QUOTE]

the sound is probably similar, however with the downpipes you need to run 3" catback.