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Help Me Fix My Car! $$$

tmc_2

By tmc_2,
in Queensland

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tmc_2 Rising Star

tmc_2

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um no i dont have one really that i could lend you but you can just go buy one make sure it has a warranty then if you swap it over and the prob is still there just take it back and say its faulty.im not 100% sure if they can be electroncally tested maybe someone on here knows.but yeah good suggestion is to advance it first and see how you go.

thanks for the info, i think i will try a differnet cas and see if that fixes anything. its worth a try i guess.

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tmc_2 Rising Star

tmc_2

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just a quick question, is it that the car is just plain slow, or is it a start/stop/start/stop type of thing?

No its a start then stop thing. The tubo spools as normal but car serverley hisitates, almost undrivable, cant really take it over 2.5-3k

I dropped it into F.I.S.T. performance as they are local and one of the few workshops open today and the only works shop who would take the car with such little notice.

So fingers crossed i get it sorted and i will report back as to what the problem is.

I have found other posts with similar issues to what i experience but when they get it fixed no body reports how they fixed it :(

tmc_2 Rising Star

tmc_2

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Hey guys! got it back from FIST performace, guys there where great very knowledgable.

Okay when it came in on the dyno it made 128rwhp.

List of things fixed.

- I had a busted fuel pressure regulator

- MY airflow meter was no good!! i tried 2 sensors previously and also resoldered one but that didnt solve it.

- Timming, The cas seems to be in a very advanced position, Tuner said for some reason this car needed a lot of timing to do anything. I know the car has had a rebuild from previous owner with pistons but thats all i know.

- boost 11psi

When it was sorted on the dyno it ran 270.9 RWHP or 202.1 RWKW.

Air fuel ratio varied from about 11.8 - 10. Tuner said it still runs very rich.

I have a SAFC neo comming so that should help things in that respect.

Does any one know why my car needs more timing than a normal r33?

And what do you guys think about the power figures? any thoughts?

Total aftermaket mods to this stage are,

- pod filter

- metal intake pipe

- walbro fuel pump

- FMIC delta fin style. piping is hybrid copy.

- dual stage turbo xs boost controller(low 9psi- high 11psi)

- GFB BOV switchable plumb back type.

Thanks for every ones ideas on this thread!

tmc_2 Rising Star

tmc_2

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Are the Cams different?

Thats good power for 11psi.

It was more than just one thing wrong, no wonder you couldnt get it right.

I pretty happy :P

As far as i know the cams are stock, The previous owner claimed a rebuild and showed me some photocopy of a trade reciept for acl pistons but npothing else so i am doubtful if it is legit.

The Timing belt was changed a few months ago.

"R33S2" are u asking if the cams are differnet because the CAS seems to be in the far advanced position? im curious as to why this is too?

Yeah two things wrong makes it hard to diagnose, expecially when i ruled out airflow meter my trying two and resoldering one.

Cheers

R334door Experienced

R334door

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I pretty happy :P

As far as i know the cams are stock, The previous owner claimed a rebuild and showed me some photocopy of a trade reciept for acl pistons but npothing else so i am doubtful if it is legit.

The Timing belt was changed a few months ago.

"R33S2" are u asking if the cams are differnet because the CAS seems to be in the far advanced position? im curious as to why this is too?

Yeah two things wrong makes it hard to diagnose, expecially when i ruled out airflow meter my trying two and resoldering one.

Cheers

it can mean a few things, aftermarket cams, timing belt fitted right??, qoute me if i'm wrong guys.

`nigno Rising Star

`nigno

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Check your Timing Belt Tensioner, they are a spring loaded mechanism from what i remember, if its broken timing belt could be far from taught and the reason you need to run spastic timing, if the covers are on your tuner wouldnt have seen shit.

Revhead Grand Master

Revhead

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Good to hear you got it sorted :P

Not surprised the AFM was a problem, but it's quite rare for the stock fuel pressure reg to die in my (limited) experience. I suppose they're not getting any younger so things are going to start playing up.

Dunno about the timing thing - maybe the cams have been timed, ie one or both have been advanced or retarded, so compared to where the CAS normally sits it might be a degree or two out. I'm probably completely off the mark but that's my best guess :rofl:

tmc_2 Rising Star

tmc_2

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Your not wrong about these cars not getting any younger,

If it is the timing belt pretensioners woulnd they maybe casue the belt to slip? some times at idle there is a wirring sort of squiggle noise from the cas area. The cas bearings are fine so it may be a pretentioner?

Edited by tmc_2
mad082 Grand Master

mad082

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maybe the timing belt has jumped a tooth on 1 of the cams. how many k's on the car (in total, not just since rebuild). it may be that when the engine was rebuilt they didn't replace the timing belt, and it is due to be changed.

my mates 180sx that is having similar problems is overdue for its second timing belt (its done over 200,000ks). we have to keep the timing fully advanced to get it to perform. we tried jumping a tooth with the cas and it was way too advanced. we think the timing belt may have jumped a tooth.

tmc_2 Rising Star

tmc_2

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maybe the timing belt has jumped a tooth on 1 of the cams. how many k's on the car (in total, not just since rebuild). it may be that when the engine was rebuilt they didn't replace the timing belt, and it is due to be changed.

my mates 180sx that is having similar problems is overdue for its second timing belt (its done over 200,000ks). we have to keep the timing fully advanced to get it to perform. we tried jumping a tooth with the cas and it was way too advanced. we think the timing belt may have jumped a tooth.

total kays are 125thou , timming belt done at 117thou and rebuild i am gussing some where between 90 to 110thou.

SO u htink its worth getting then to check the timming belt is its alligned correctly?

Will it be fine to just leave alone?

thans Mad082

shanef Grand Master

shanef

Posted
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so u've still got the stock ecu? prolly best to get a power fc (or other) and get it tuned properly. i.e lean it out a bit, then you'll also be able to pull some timing out. it'll go harder, and it wont chew as much fuel >_<

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