My car is makn me crazy!!!

[Nizmo]

get your fuel pump checked asap then - a dyno run should be able to determine if the car is running lean and the fuel pump needs replacing or if its not that it may show what else is wrong.

The reason we think my engine blew was because i was driving around on a dodgy fuel pump without knowing it for quite sometime.

[NO_RSPECT]

hey dude my old line did this about 3 weeks after i sold it to a mate of mine

turned out after everything it went through....the cat was bashed to crap and everything fell out... we re-installed it as a TEST ONLY *cough*

and the car had new life again... so get a high flow cat or do the same TEST

also afm on his was maxing out...so in went the z32 etc and walla more new life... very weird stuff considering it ran fine for soooo long

but yeah it picked up the 50kw or so at the wheels that it has lost previously

[krzysiu]

Dont check your fuel pump, get rid of that stock piece of crap and get a Bosch 044 600HP fuel pump. Should do the trick. Dont think a BOV would cause a problem like that, BOV's are more common to staling...

[iCEBOi]

engine swap for rb26dett

fix my problems now i smile

[PHATR32]

well, a bosch 044 is the first thing i bought!

nothing is too good for my gtr........if it arrives.......

anyways, if you can hold up another month you can borrow my gtr pump and see how it goes.

steve

[Driver]

im planning to go overseas early next yr so spending money on the car will have to wait

looks like its gona have to be garaged for a while

[Abo Bob]

I can't believe you're talking like that Driver.

Take it to Steve or someone over there who knows what they're doing and get them to fix it. Sure, it might cost you a few hunji but imagine how many months of pleasure you will be missing out on if you don't drive or drive it like it is now until you go os.

Also write down you kms and litres and get some figures for how many Litres per 100kms your car is doing. That will help you figure out what is normal and what is not. I thought mine was broken but it turns out is was just my lead foot. (I am a compulsive fanger)

[uneekwahn]

I've checked how many k I get on a tank, and I usually only just go over 300, or usually just under it.

[Driver]

haha abo bob,

ive got a cold atm - im very unhappy and thinking negative

i wouldnt mind getting a replacement pump and a cheap safc for temp use untill i can afford a pfc.

I have been driving my dads berlina around - god damn it uses less than 1/2 as much fuel as i use in mine - ive been driving for over a week and its just under 1/2 way! - i would of filled up by now 4 sure.

i just realised the r34s dont have one of those km timer things like the r33's u just have to count off the odm. Knowing me ill get it totaly wrong.

[PHATR32]

"I thought mine was broken but it turns out is was just my lead foot. (I am a compulsive fanger)"

haha, thats my exact problem! and it only a 1.8 4 banger!

you just cant help it though.....

steve

[Abo Bob]

Just get a receipt for every fill up and write the odo on the back of each one. Then you can put them all in a spreadheet when you have a few and work out the L/100km.

[Neo_R34]

"i just realised the r34s dont have one of those km timer things like the r33's u just have to count off the odm. Knowing me ill get it totaly wrong.

Hi Driver,

Should be a push button on the dash next to rpm/speedo that allows you to toggle between odometer/trip A/trip B readings, to reset push and hold button, i use trip A for per tank kms and trip B for oil changes...hope that helps

michael

[PHATR32]

ok, we just got back from a quick thrash and it seems fine on stock boost, but on high boost it slightly surges.

any ideas guys??

steve

[SLIM V 2.1.0]

:bananaman

[Abo Bob]

Are you talking about your car or Drivers car?

[Driver]

mine

i took him for a cruise to get our lunch

[PHATR32]

yeah, its drivers car. i dont have my one yet and the laser is doing pretty well.

its weird problem, i still think its the intake pipe getting sucked closed.

steve

[Sydneykid]

engine mods i have - full exhaust, fmic, ebc, apexi pod + cai, bov.

Hi Driver, looking at the mods, you have no method of real tuning and R34 GTT's have very strict engine protection built into the ECU. I would never expect t to achieve a good result without some tuning, once I had done the usual bolt on mods. You really need to think about what you are going to do about it, SAFC or Power FC would be my choices. It has been my experiecne that you spend more money on fuel than you could save by a bit of A/F ratio tuning.

My recommendation, get the tuning device (SAFC or PFC) put the car on the dyno and run through the usual checks, that will tell you what is holding it back. Fuel pressure test under load will identify fuel pump problems, A/F ratios can be fixed with tuning, timing light checks for ignition etc etc

The very SECOND mod I did with our R34 GTT was a Power FC with Boost Control Kit, obviously a turbo back exhaust was the first. We had ~200 rwkw with just those two mods and tuning. It now has hi flow turbo, Tomei 260 cams, POD, heat shield, CAI, alloy inlet (yep, they do suck closed), Tomei fuel pump, R34 GTR intercooler, injectors, Z32 AFM and makes 265 rwkw.

You work it out for yourself......

PFC + exhaust = ~50 rwkw gain

turbo + cams + POD + fuel pump + intercooler + injectors + AFM = ~65 rwkw gain

I think it is obvious what I reckon you should do next.

PS; Before the comments start, that was at 12 psi and the standard turbo died shortly thereafter. Plus the standard R34 GTT intercooler (although bigger than R32/33) would heat soak pretty quick and the power would drop off noticeably. So 200 rwkw for short periods, no problems, just don't expect it to do it for long periods.

[PHATR32]

personally id screw the holiday and get a PFC! thats me anyway.....

steve

[Driver]

thanks for the reply,

i have a 300x600x75 cooler so that wouldnt be an issue

and come to think of it i did remove the heat shields from the turbo when installing a dump pipe which could effect the intake pipe from the pod sucking closed more than usual.

It just seems weird - it used to run alot better now it just seems to be killing itself.

But yes i should realise that money is everything and that i really do need a computer if im going to sort out my issues.

Im such a tight ass atm