Rb26 Rebuilt

[tom9999]

hi guys,

i just need some help setting up my car. recently i have spun a bearing on my r33 gtr its almost finished being rebuilt and i dont know how much boost i can run and what power i could be getting???

Mods

• Full engine rebuild blue printed bottom end

• ACL race bearings big end and main

• Aries forged pistons 1mm oversize block deck/milled/bored and honed

• Eagle forged rods

• ARP head stud kit

• 2 x HKS 2530 turbos

• N1 oil pump

• MLS 5 layer steel gasket

• Recondition head

• Ported exhaust manifold

• Custom twin dump pipes

• HKS super dragger exhaust

• Microtech computer

• Trust twin entry intercooler

So can anyone tell me what boost i should run and what power i could be getting im looking at about 320+RWKW

[WRRR]

You don't mention what you have for a fuel system.

With your mods you can pretty well go where you like if you can get sufficient fuel and a clutch that will hold up.

Have a scan through the RB26 mods list and you will get a good idea but for ~320 rwkw you will probably need bigger injectors and a bigger fuel pump and run anywhere from 1 to 1.4 bar to get your target depending on who is tuning it.

[monga]

I've got similer mods and a supportive fuel system and make 473hp at 20psi on a very concervative tune. Next friday it gets retuned and will see 1.7 bar with the 2530's.

[tom9999]

Yeah ive fuel pump and sard injecters. ive got most of the supporting mods to get there??

[turbo_brian]

Tom, how many cc's are the sard injectors??

B.

[tom9999]

i think there sard 666cc, not too sure they were on the car already

[ali-turko]

you engine builder/tuner should no this why dont u ask him

and with those mods above you will make the power u are after

what clutch are you running

[tom9999]

yeah hes only built the bottom end as i spun a big end bearing, ive got a exedy heavy duty and i think there not to good over 320kw atw,

Whats a good all day everyday boost level??

[ali-turko]

i run 15psi bout 260kw

[tom9999]

So can anyone tell me whats the max boost for the HKS 2530 turbos and max boost through the motor and a good all day everyday boost level!!!

[R31Nismoid]

Max boost?.... people have run over 25psi before, over 400rwkw.

So you really need to ask yourself how much you want

[tom9999]

^^^ cheers

how long can the motor hold 25psi for, will it blow up??

[Swiper the Fox]

^^^ cheers

how long can the motor hold 25psi for, will it blow up??

not if i built it...hehe

my last engine with 2530's saw 34psi and made 467kw at the tyres...on the dyno

and ran low 10 sec passes on 28psi for 3 years until.....N1 oil pump shat itself launching at 9500rpm

rev's will kill your engine before boost will (provided its properly tuned)

[tom9999]

^^^ thanks mate

Im keen to run high 10 is it possible???, i was just going to put some slicks on the back and run it in RWD.

Would i be able to run 30psi with my setup ive heard of 27psi with hks 2530's

[R31Nismoid]

On street fuel - not a chance.

You'll be running into ignition issues most likely around 22-24psi on PULP.

[monga]

On street fuel - not a chance.

You'll be running into ignition issues most likely around 22-24psi on PULP.

In reference to coilpacks and sparkplugs ect?

[skylinekid]

twinpower HKS DLI with splitfire coilpacks they do the trick i reckon

[NYTSKY]

Should fix it up.But you have not ecounted that problem yet.One step at a time mate.

Run it in first,dial up 1-1.2bar and see where you are at.

[R31Nismoid]

In reference to coilpacks and sparkplugs ect?

In terms of you wont make 440rwkw on PULP regardless due to needing decent fuel, then you need good ignition etc, its a domino effect

[monga]

In terms of you wont make 440rwkw on PULP regardless due to needing decent fuel, then you need good ignition etc, its a domino effect

my interest relates to your statement of running 22-24psi then spark breaking down, obviously making 440rwkw will require fuel and solid ignition upgrades