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Rb 2860-5 Highest Hp?

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As instructed ........

What is everyone's thoughts?

Just got my car tuned 703rwhp 524rwkw. Does anyone know the record for these turbos?
Built bottom end with 87mm pistons
2860-5 turbos
Pon cam type A
Tomei manifolds and dumps
Apexi down pipe
ID1000s and tomei fuel rail
2 walbro 400lph fuel pumps
Nismo inlet pipes and hard intercooler pipes
Custom intake pipes
AEM series 2 ecu tuned for flex fuel

Edited by Jc052685
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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.


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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.

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These are all the performance mods I can remember.

CP pistons 87mm

Eagle rods

N1 crank

Nismo oil pump

Mild head work

BC springs/retainers

Tomei type A poncams

2860-5 turbos

Tomei dumps

Tomei manifolds

Spec twin plate

AEM ecu tuned for flex fuel

Nismo thermostat

Apexi down pipe

Aluminum Radiator

ATI dampner

Blitz cat back

Greddy cooling panel

Greddy timing belt

ID1000 injectors

Tomei fuel rail

2x Walbro E85 fuel pump

Nismo air inlet pipes

Nismo intercooler hard pipes

Powerfab intakes

Splitfire coil packs

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Got a pic of the cooler, Nismo is not factory and there is two versions with one being far superior to the other

Looking at the parts list I would say the exhaust and ID1000s are the most limiting factors and would guess a realistic 400-420rwkws and give or take 130-135mph

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List says Nismo cooler, factory cooler starts to measurably pressure drop from around 350kw, 500+rwkw on a stock cooler is where I call mythbusted

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.

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