gmchaser
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Everything posted by gmchaser
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Who's Running A Wideband And What Are You Using?
gmchaser replied to SS8_Gohan's topic in Engines & Forced Induction
DO NOT USE THE INNOVATE MTX-L. -
How much boost and rpm do you plan on running? If it's 18-22 psi and 7000rpm don't do anything to the head just get at gt3076r or similar sized turbo with external gate. If you plan on running around 25 plus Padi and around 8000rpm to keep it reliable will cost quite a bit more than just head studs and valve springs
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Hi can some here maybe point in the right place to buy genuine Nissan coolant hoses. I have the part number, just don't know the best place to buy them. I'm in Melbourne western suburbs. Cheers
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I also pulled the inlet off thinking it was the gasket but the gasket look fine. Haven't put it back together yet. Damn rb25 inlet is a pain
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This happened to me in an rb25. 8000rpm spark cut rev limit is what did it. I didn't figure out what it was but kept hearing a hissing sound when loading around the inlet manifold gasket. Also boost was lower than usual after. Is the car running the same boost pressure as before?
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I don't think it a good idea to have the coolant running through the inlet manifold like that on a 2000+ dollar race manifold. I would rather modify a greddy copy to suit a singe throttle body. Heaps cheaper. Maybe if it had a revised coolant flow system like a tube similar to the member above and runners that went all the way to the head. But that would prolly cost a small fortune
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Rb30 Hybrid Upgrade, All Dyno Results
gmchaser replied to R31Nismoid's topic in Engines & Forced Induction
I would love to see the above with a -5s comparison and the same boost. -
Rb30 Hybrid Upgrade, All Dyno Results
gmchaser replied to R31Nismoid's topic in Engines & Forced Induction
I would love to see the above with a -5s comparison and the same boost. Would be good if it still makes peak power at 7000rpm but push the peak torque down 500 to 4000rpm. -
These days with e85 and billet compressors less rpm and heaps of boost seems to be all rage.
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I don't think this turbo in twin form will perform well on any engine unless upwards of 3500cc as you are not able to cheat and run more boost to make the claimed 850-900 hp because it runs out of compressor at 2bar boost. On a 2.6 with let's say big cams revving to 8500rpm the -5 should make the same power as them at around 1.8 bar. A single turbo on the other hand like a t04z, gtx4088 or even gt4294r I think you are able to cheat because if you don't have massive cams or oversize valves to improve the Ve of the engine( which are essential to make the gtrs work well in an rb26/28/30) you can just run more boost to make the power.
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I have both turbos. The t04z on 25psi in an rb25 and and -5 on an rb26 28psi. Both standard head and cams. The -5 are more useable in 2 gear and it feels it has more torque from 4500-7000rpm. But the z from 5000rpm is alto more aggressive. I can't comment on gtrs but even getting the -5 set up properly on the gtr is abit of a pain.
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Does anybody know where I would be able to purchase a r33gtst s2 manual accelerator cable.
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Oh and I also have just put a t04z .82 on a standard rb25 s2 and its a good 500rpm laggier than the -5 in rb26. Both turbos set up flow up to around 70lbs/min The t04z would be amazing in an rb26 with 270ish cams revving to 8500-9000rpm at 2.0bar. I would think it would easier to get that set up running properly over twin gtx turbos. Cheaper too
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Why not just stick with -5. I have them running up to 1.9 bar in my gtr good power from around 4500rpm all the way to 8000rpm. That's a good useable powerband. If it's a 3ltr that revs to 8000rpm I can understand as the -5 would probably be out of Their efficiency at that boost.
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Hey everyone. Just out of curiosity what timing figures are you guys running in your rb26's and rb25's with e85. I have an rb25 s2 standard head and cams t04z with supporting mods 10.8 -11.2 afr 20psi =21* up to 5500rpm 22* 6000rpm 23* 6500rpm 24*7000rpm to 8000rpm 24psi= 16* up to 5500rpm 17* 6000rpm 18* 6500rpm 19* 7000rpm to 8000rpm
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hi guys im in need of a new set of spitfire coils for my s2 r33 gtst. Is there anywhere in melb where i am able to go and buy a set. i kinda need them asap
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(Vic) Rb26 Power Fc + Z32 Afm X2
gmchaser replied to gmchaser's topic in For Sale (Private Car Parts and Accessories)
All sold