R32 Gtr Bolt Ons B4 Tune?

[rhysc1986]

hi i just bought a R32 GTR. its running standard 7psi boost and looking for more power. all it has is twin HKS pod filters, N1 turbos and 3" cat back exhaust. i just bought a Apexi Power FC and going to get tuned just wonder if there any mods i should look at for more power b4 getting tuned. im not looking at super power that will require needing to rebuild engine, just looking at simple bolt on mods, to get more out of car.

thanks

[Moodles2]

7psi? are you reading from the stock gauge, that's actually +7 mmHg (13.2psi), standard boost is actually 10-11psi.

[ZED X]

As above standard your looking at 10.5>11 psi stock.

Depends how much you want to spend really, I managed 250kw with stock everything and a tune on 14PSI (with an exhaust camgear), mind you i dont run 14psi 24/7.

Given you have a set of N1's installed, might be an opportunity to grab a set of AFM's/Injectors and a fuel pump and push for 270>280kw.

Probably wouldn't hurt to grab an exhaust camgear aswell while your at it.

[Thelen]

Improving the exhaust is probably the most cost effective. Make sure you get a proper turbo to cat dump. After that get a proper intercooler, cos as good as the standard one is if you want reliability and power at lower boost this is a must.

[SiR_RB]

after market front pipes/high flow cat/EBC/cam gears...and if you want to go further fuel pump/injectors...never ends realy

[R31Nismoid]

cam gears

hi flow cat

and a tune. perhaps you'll need a fuel pump, depends on condition of the one already there. Swap it to be safe IMO.

[rhysc1986]

it goes just above 0.5 bar of boost. so like 7-8psi on aftermarket greedy boost gauge. we disconnected the Greddy pro spec 2 boost controller when i bought it coz car was going nuts when hitting boost.

when ppl say cam gear are they meaning just the gear or the camshaft as well?

looking at dump pipes and front pipe already, how good is standard cat?

was prob going to look at fuel pump injectors and AFM later on down the track after i see how well it goes after tune.

i just want the car to get up and boggy faster,mate drove car and said its slow as until it hits boost, laggy as f**k which i had already noticed.

[DVS JEZ]

standard cat is no good, waaay too retrictive. what ever size your exhaust is get 1 size bigger cat eg- 3inch exh get a 3.5 or 4inch highflow cat etc

[GTR_JOEY]

Yeah cam gears go on the end of the cams, they are used for tuning purposes by the tuner and can advance/retard the camshafte depending on where u want the power.

Standard fuel pump is a good bit of kit, and will handle 300RWKW no worries unless the things Shagged

AFM Generally max out around 300RWKW or there abouts

Standard injectors are alright for around 260-270ish RWKW.

There could be a large restriction in your cat.. i dare say sort out your dump/front pipes and your cat and your response and top end will be better

[XRATED]

044 intank- for reliability

Cam gears- for tuning flexability

Decent down pipes and cat- to remove the restriction

Nismo, bolt on adjustable fuel pressure reg- to give a little head room for your injectors

Clean and flow test your injectors

Clean out your intercooler and pipe work

Clean and insulate your coil packs, boots etc

New set of plugs

Have your radiator flushed out

Most of all, be happy with the result once all the issues are worked out... otherwise it's a veeeery slipery slope.

Cheers

Justin

[jeffworld2]

what sort of power do people get on the standard computer these days? ive never had one

say for example n1 or gt ss turbos with turbo back exhaust

[bored33]

I would stick with increasing the boost, completing the exhaust system and then getting the power fc tuned. With N1 turbo, and higher boost you would be looking around the 250kw mark which is plenty on the streets.

Try not to do too much unless you NEED to (for example, your car will not drive if you do not change a certain part) or else you can join alot of other members here with their never ending shopping list.

[DVS JEZ]

N1 turbos and 18psi should see 270+ kw.

With a full tune

[rhysc1986]

ok HKS split dump and front pipe paid for and waiting to arrive

talking to guy about buying HKS cam gears and intercooler.

going to buy another Greddy pro spec 2 and see if it was just the unit was f**ked by changing it over since everything else is installed.

now looking at fuel pump and maybe injectors. Fuel pump coz every so often car just stops accerarating like fuel cuts out.

do i really need to upgrade intercooler piping?

what fuel pump is good and easy to fit without buying all these extra iwiring adaptors and clamps and shit?

im not looking at anything over 300awkw prob closer to 250awkw for reliability and better fuel comsumption

[Thelen]

Stock intercooler piping (and the intercooler itself) is fine, certainly not cost effective to change at this stage. Depending on the condition of the intercooler though as I said you might want to replace it.

Get a 044 the cheapest 'stock' option, you could do it yourself even. Make sure you get your mechanic/tuner to check the condition of the injectors, plugs, and ignition. If any of them are old or heading down, replace them to avoid problems down the track. Anything over 550cc is fine, similarly any plugs really but if you want to last get something like NGK (get them properly gapped etc), similarly splitfire coils are a good 'stock' option.

Definitely get the cam gears over a new FMIC or anything else really, they are probably the simplest and most cost effective upgrade you can do outside of exhaust and more boost.

[GTR_JOEY]

Mate easiest thing to do if u got the cash is to buy a nismo intank pump. no screwin about as it drops straight in.. theyre about $350 from rhdjapan.com plus postage

also theyre quieter, Reliable as hell and can support 400rwkw if u need it

Leave your cooler piping and cooler theyre fine

If you feel the need to, pull your cooler off and wash the core out with brake clean/metho .. what ever you got layin about

youll be surprised how much oil and other dirty shit comes out

[SiR_RB]

I just cleaned out my intercooler and piping few days ago, the amount of black crap in the cooler was unbelievable!

Gave it a good clean inside and outside, fins were all perfect so didnt need to straighten them

Doing this will definitely make ur cooler perform better

[DVS JEZ]

yep^^^ and setup a autech style catchcan so it doesnt keep happening too.

My old GTR was running 419 kw with the stock intercooler piping.

[GODZILLA-GTR]

Wot is the best method for cleaning out an intercooler? and wot do u guys use? might have to give mine a good clean

[smithy85]

^^^ we just did GTR_JOEY's standard intercooler today, and used brake clean to run through the tubes and gave it a good shake around - flushed it through a couple of times and it ended up near on spotless internally. Might being doing mine soon after seeing all the oil and grime that came out of it.

If your "only" after 300 kw then forget about fuel pump, intercooler and AFM's unless you are worried about their condition or want room for more power later on (which will require turbos swapped out) - standard stuff has the capacity to support this power output, all be it, close to the max (AFM's).

Injector upgrade will be a must though, 550cc minimum.

If you want better midrange/response then yes, change those front pipes straight away - bigger the better, and get the biggest catalytic converter you can fit, this will improve the overall response of the engine, adj cam gears will be the finishing touch. After these things have been done then a good tune will be mandatory, resulting in one very quick, responsive GTR!

Also a quick note that some of the Apexi PowerFC's apparently have a software issue that results in a random miss (feels like an ignition cut), nothing major just another annoying little niggle lol. Try a search for a bit more info on this.