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Please Help Me With My Very Lazy Gt2860-9's!

tommis85

By tommis85,
in Engines & Forced Induction

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tommis85 Mentor

tommis85

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For us Skyline boys these runs are generally done in 4th as that's the one with the 1:1 ratio. All of mine have been except for this one tuner here in town who chose to do it in 3rd instead because he "didn't want the car going that fast" :D

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tommis85
tommis85

Hey, yeh pretty much all sorted now. Haven't had a compression test done but she makes around the 400hp mark now which is good. Been ages since I've posted in this thread, can't remember if I updated

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Hadouken Grand Master

Hadouken

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Like i said, I assume, as im not sure, you did not answer my question, let's just say anything over 110 is useless, your dyno shows about 150 kw at 110....like I said not surw how these things work/read

You dont drive a skyline for practicallity.

tommis85 Mentor

tommis85

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How does yours go in 1st and 2nd? Do the turbos give a hard kick in 1st or does it feel like that the engine is a bit ahead of the turbos in 1st and it's only in 2nd where the turbos get to play a part of it.

...as mentioned earlier, mine are like that and my old 33 N1's were like that too. But I haven't quite had turbos pull as hard in 3rd and 4th as these new -9's do.

tommis85 Mentor

tommis85

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which would result at lower kw at higher speed would it not, smaller the snail wouls see more power at less speed and lower rev range

The -5's are one size up from the -7's and 9's with totally different A/R's and trims... and are roughly equivelant to 2530's. I imagine them being laggy as f**k around town. They would have less down low and more on offer up top.

Edited by tommis85
cobrAA Mentor

cobrAA

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Your dreaming if you think you got 380rwkw from gtss on 18psi. Not even on e85

What 1/4 mile did you run? Trap speed?

seriously? I was at the tuner yesterday for 5 hours.. sure it must be a dream loll I just do not brag about my setup on the internet like some of you. I have nothing to prove and couldn't careless if you don't believe me.

but for the people really interesting ( because, yes I actually got 3 pms regarding this) about the -9, yes its possible ot achieve great number.

and here, we do not run E85 ;) we run 94.

Edited by cobrAA
GTRsean Grand Master

GTRsean

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The bottom line is that octane comparisons won't help, as Aus and US ratings are measured differently, as well as dyno corrections.....

Taken from wiki: (see wiki for fuel table)

The octane rating shown in Canada and the United States is 4 to 5 points lower than the rating shown elsewhere in the world for the same fuel. See the table in the following section for a comparison.

Australia: "regular" unleaded fuel is 91 RON, "premium" unleaded with 95 RON is widely available, and 98 RON fuel is also reasonably common.

United States: in the US octane rating is displayed in AKI. In the Rocky Mountain (high elevation) states, 85 AKI (90 RON) is the minimum octane, and 91 AKI (95 RON) is the maximum octane available in fuel. The reason for this is that in higher-elevation areas, a typical naturally aspirated engine draws in less air mass per cycle because of the reduced density of the atmosphere.

This directly translates to less fuel and reduced absolute compression in the cylinder, therefore deterring knock. It is safe to fill a carbureted car that normally takes 87 AKI fuel at sea level with 85 AKI fuel in the mountains, but at sea level the fuel may cause damage to the engine. A disadvantage to this strategy is that most turbocharged vehicles are unable to produce full power, even when using the "premium" 91 AKI fuel. In some east coast states, up to 94 AKI (98 RON) is available.

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