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Cheapest/ Most Reliable Way To Get 275-300rwkw From A Rb25

scott_to4

By scott_to4,
in Engines & Forced Induction

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scott_to4 Explorer

scott_to4

Posted
Posted (edited)

*******NEW QUESTION, SEE POST 8**********

THANKS FOR ALL THE HELP/ADVICE, I ONLY WANNA SPEND THE MONEY ONCE.

ok ive just ordered a r33 series 2 half cut, motor box computer etc all there.

Its going into my vl, what is the easiest and cheapest way to get to 250rwkw safely and able to run it all day??? car already has fmic 600x300x76 and will have full 3 inch turbo back exhaust. i guess what i want to know is just with these mods and an upgraded turbo could i retune the stock ecu to achieve the 250rwkw. staying with standard injectors? the vl already has big fuel pumps.

thanks in advance

Edited by scott_to4
scott_to4 Explorer

scott_to4

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Posted

ok so ell me then would this be achievable? or would i need bigger AFM or would aftermarket ecu negate this?

100% stock internal rb25det.

600x300x76 FMIC

3 inch mandrel bent turbo back exhaust

bigger injectors and pumps (budget $500 as i alreadhy have pumps)

aftermarket ecu (budget $2000)

appropriate BB turbo (budget $2000-$2500)

high mount exh manifold and possible external gate (budget $1000-$1500)

Ok so with the above setup could i reach 275rwkw through a standard gts-t r33 manual box? prob need new clutch.

so with around a budget of say $6000 is that possible?

thanks in advance

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

So now your not doing it on the cheap?

I suggest you should search around as this thread is heading down the path of all the others (being locked, because its been answered sooo many times)

In particular read this thread:

http://www.skylinesaustralia.com/forums/t55845.html

Is has all the results, parts used and so on. So basically you'll find out what fits your requirements quite easily.

LTHLRB Grand Master

LTHLRB

Posted
Posted

turbo - 30/40 .82 or 3540 .82

china exhaust manifold - 300 or - extreme turbo manifolds - 1grand

ecu microtec

injectors - nismos or sards

wastegate 5 - 700

theres ur 350 kw

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

10psi :thumbsup: Ive found cars "feel" better when running a lot of boost.

Not sure if its actually faster which is probably anorther thread all together.

Running 1bar now, my car feels good/progressive @ 250rwkw, but getting in a mates EVO with 250rwkw 20+psi... its just savage like my car was with 350rwkw/24psi etc.

Would be interesting as you could go a smaller 450hp turbo and screw tins of boost into it to get the power, just depends if it will nose over in the top end though which is possible.

The 500hp GT30 will crank 275rwkw easily (around 17psi is what i did it on), but the difference from 17psi to 24psi was really interesting

SilverECR33 Veteran

SilverECR33

Posted
Posted
the words 'cheap' ,'reliable' & 'fast'. You can only choose 2 of the 3.

Alot of truth right here. please take note.

ps. You dont need a highmount to get to that power goal, so save yourself the $$ on the highmount with external gate, because you can easily acheive your goal with a lowmount retaining the stock manifold, and spend the money elsewhere. ie. fueling.

R32 Driver Mentor

R32 Driver

Posted
Posted

600x300x76 FMIC = $365 justjap

3 inch mandrel bent turbo back exhaust $1k

bigger injectors and pumps = dont bother, ive seen stock injectors run this power

aftermarket ecu (budget $2000)

high flow R34 turbo, or a VG30 rear housing on your existing turbo 1.5k ~ or spend a tad more and get a HKS GT-RS bolt on nengun 2.2k

forget the highmount, save $$ on water/oil lines and changing dumps

then you have to add labour....

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