Jc052685

Didnt say i made 900 on a gtr. Just that it was through a 3" exhaust.

Odd..... I have made over 900whp on a 3" exhaust. Even that much must cover our apparent over zealous dynos.

3" I believe.... And its Rickys car, just so there is no confusion. I did not build the motor so I do not know the specifics. most modern fuel systems run 58 or so psi. That is where we normally run things. Had this car at 43.5psi in order to help with pump gas drivability but we had to turn it up. The ID1000's are rated at about 1150cc/min at 58psi.

You talking about raising the fuel pressure? Its already at 58psi. Figure another 25psi when under full boost you are looking at 83psi rail pressure. Not sure on cr

The restriction being what? The inducer its self? Restriction would be anything befor or after the turbo that would hinder flow.

Interesting... I asked in the other thread but..... do you guys trust Mainline dyno numbers?

So what will 97% dudy cycle on ID1000s on e85 get you guys? Though it was actually E70

This was a year ago on 13psi and pump gas (and i guess it was 480whp)

Nismo intercooler hard pipes Car made 490whp on 13psi...... Mustered a 507whp pull at about 15psi but the 93 octane pump gas was the limiting factor.

Intercooler is factory. ID1000s are running 97% at 58PSI base pressure.

I am curious what everyone thinks this setup actually makes?

No more nismo inlets I am assuming Ricky? lol

your race weight? I was at 3260lb.

yep

I personally feel that if the customer wanted to truly max out the turbos by freeing up some restriction that still exists in the inlet & charge pipe sections that I could get another 25-35whp out of them. Car is still on the factory intercooler & intake plenum after all.

Simply a dual 2.5" Maf-less system I built for it. I am wishing now that I used 3" as I may have left a few hp on the table. I welded 2.5" v-bands to the turbo inlets as to minimize the inlet turbulence that a couplet could induce. Took care to make sure all inlet pipe fitment was perfect.

The turbo its self is unmodified.

And here is the link http://www.sau.com.au/forums/topic/463036-rb-2860-5-highest-hp/

As instructed ........ What is everyone's thoughts?

Good idea.... You guys trust Mainline dynos?

But it will physically spin faster than what they tested it to, correct? Wonder how the Z32 guys are making well north of 500whp these days on stock turbos?

Well I can tell you this. My 550whp RB25 powered S14 ran a 10.9 @ 129mph. This car puts my S14 to shame.... Currently prepping it for a drag strip outing.

Or....... if you follow the graph to the right. More flow. Whatever you are used to seeing people do with these motors obviously requires more pressure to overcome its flow restriction than this motor does.

Or raise the flow... Boost pressure is nothing more than a measurement of restriction to flow.

They are rated at 360 hp at the highest rpm that Garrett tests them at. Not the max that they will physically flow.