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Discussion Starter · #1 · (Edited)
I***8217;m planning my RB28 build since the engine now isn***8217;t at the condition I want it to be at.

I will only use this car mostly for street and occasionally track days, therefore I want it to be responsive and stealth. My target is around 700whp .

Here is my wish list,

N1 Block
Borg Warner EFR 8374 1.05a/r hotside
Garage Whifbitz T4 Twin wastegate Twin Scroll Manifold
Twin Turbosmart Compgate 40mm external Wastegates
NITTO's RB26DETT 2.8Ltr Stroker Kit
Tomei 1.2mm Headgasket
Tomei Oil Pump
King Bearings
ARP Custom Age 625 Plus Head Stuts
Tomei Procam 260Degree 10.8mm Lift Intake
Tomei Procam 270Degree 10.8mm Lift Exhaust
Tomei Adjustable Cam Wheel
Tomei Type B Valve Springs
Tomei Type B Titanium Retainers
Tomei Bronze Valve Guides
Twin Walbro 450 Fuel Pump with Frenchys Performance Garage Twin Pump In-Tank Fuel System Kit
Earl***8217;s Pro-Lite Ultra Hose -8 AN Feed & -6 AN Return Fuel Lines
Plazmaman Fuel Rail
Fuelab Fuel Pressure Regulator
ASNU 1400cc 14 Holes Injectors
Ross Performance Crank Cam Trigger Kit
Haltech Platinum Pro Plug-in ECU
Greddy/Trust Intercooler
Greddy/Trust Radiator
ATS Twin Plate Carbon Clutch
Tomei EXPREME Ti Exhaust
 

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Discussion Starter · #4 ·
Nice list and should make a very capable engine no doubt, but aren't those injectors a tad overkill? Are you planning on using E85?
I want 14 Holes and seems like ASNU 1050cc is a bit too small...

Also not sure it'll be as 'stealthy' as you'd hope as those Tomei exhausts are pretty loud
Well I want to use the plumb back Wifbitz manifold and ppl recommend larger 4” exit is better and seems like a decent priced exhaust at 3.5” is Tomei
 

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Gonna need a bigger turbo even 9180 will struggle to 700 whp.
My 9180 makes 720whp on 99 pump and 760whp on e100 bolted to an rb30.
 

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Discussion Starter · #13 · (Edited)
I cannot decide which cams to go with especially when EFR 8474 is going to available soon. I want response but don***8217;t want to give up all the top end.

Tomei 260Degree 10.8mm lift Intake
Tomei 260Degree 10.8mm lift Exhaust
Or
HKS V Cam Step 1 248Degree 8.6mm Lift Intake
Mines 252Degree 10.05mm Lift Exhaust
Or
Mines 252Degree 10.05mm Lift Intake
Mines 252Degree 10.05mm Lift Exhaust
Or
Unigroup 258Degree 11mm Lift Intake
Unigroup 258Degree 11mm Lift Exhaust
 

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Not from data I have seen from a Tomei built 2.8 genesis engine with their +1mm valve upgrade and running Tomei procams 260/10.25 in/ex. Had a very good torque curve and pulled hard up to 8400rpm. Full boost on the GT2530 by 4200 rpm.
 
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