Jump to content
SAU Community

Recommended Posts

Hi all,

I've just installed a boost tap for my R33 GTST and winded it up to 13 psi. Took it out for a test.

- 1st gear was extremely powerful, 2nd gear was normal (couldnt feel the pull), 3rd gear was also more powerful than before. However, intercooler pipe was loose at one of the joints and the engine stalled...(The turbo was glowing redhot when i opened the bonnet). Took it back to the garage and tighten up the pipes properly.

After 2 weeks, I started to feel a huge lag on 3rd and 4th gear, and couldnt feel any more power on the 1st nor 2nd gear even thouggh I can still feel/hear the engine and turbo work very well (Boost gauge still shows 13psi). My friend said my clutch has worn out (it doesnt go as it sounds).

I'm just wondering if anyone here has experienced the same problem before or has any idea what exactly is the problem?

Any help would be appreciated...Thanks in advance

Ken

P.S My line basically has full exhaust system, pod, and intercooler.

Link to comment
https://www.sau.com.au/forums/topic/91490-unknown-problem-please-help/
Share on other sites

Is the car blowing any smoke?? if not you might have a leak in your IC plumming again... while the car is on idle open the bonet and listen for any 'hissing'... if ur clutch is gone it will slip its nut off and smell like shit.. you will deffinatly notice it! let us know wat happens

good luck

If the clutch was slipping, you should be able to smell it.  Would be pretty noticeable.

mmmm..........not necessarily Racer...mine slips a little, enough to kill that rush when changing gears at boost!!

After checking for IC pipe leaks, as smartly suggested above, I'd re-set the ECU, give that a try......check your plug gaps (.8mm) too (?)

I know i'm going away from the clutch thing, but reduce your boost by a psi, at least!!!

13psi is bordering on a fun short time, without re-mapping!!

Edited by superspit

Hi guys,

I've gone through the checklist given by you geniuses. Below is a summary of the result

Is the car blowing any smoke? No. In fact, I cant smell anything like the clutch is burning

Leaking in the IC plumming? No "hissing" was noticed

I havent checked for plug gaps cuz I dunno how to :D

Finally, I winded the turbo back to 10psi and reset the ECU and it's running smoother with much better response (VERY HAPPY :()

Yes, I'm running a factory ECU. Is that why my car couldnt run at 13psi properly? Would remapping the ECU or changing to an aftermarket one (PowerFC) help?

Other than that, Thanks so much for your help guys! I'm pretty happy with my line now :)

Hi guys,

I've gone through the checklist given by you geniuses. Below is a summary of the result

Is the car blowing any smoke? No. In fact, I cant smell anything like the clutch is burning

Leaking in the IC plumming? No "hissing" was noticed

I havent checked for plug gaps cuz I dunno how to ;)

Finally, I winded the turbo back to 10psi and reset the ECU and it's running smoother with much better response (VERY HAPPY :))

Yes, I'm running a factory ECU. Is that why my car couldnt run at 13psi properly? Would remapping the ECU or changing to an aftermarket one (PowerFC) help?

Other than that, Thanks so much for your help guys! I'm pretty happy with my line now :)

THERE YOU GO! Factory ECU is ace, for relatively standard applications..ie, maybe 10 -11 psi. (in a nutshell!!)

Unless your car is noticeably misssing upon acceleration, then don't worry about spark plugs. (checked by removing them and measuring the 'gap'!!).

I'm being a little conservative with this, as I believe you are being!! Cool!!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • just an update to this, poor man pays twice  Tried sanding down the pulleys but it didnt do the trick. Chucked another second hand alternator in the na car which I got for free off my mate and its fixed the squelling. Must have been unlucky with the bearings.    As for my turbo car, I managed to pick up a cwc rb alternator conversion bracket + LS alternator for 250 off marketplace, looked to be in really good nick. Installed it , started the car and its not charging the battery.... ( Im not good with auto elec stuff so im not sure if this was all I needed to do but I verified such by using a multimeter on the battery when the engine was running and I was only getting 12.2v )   I had to modify the earth strap for the new LS alternator , factory earth strap was a 10mm bolt which did not fit the bolt on the LS alternator which was double the size so I cut it off , went to repco bought some ring terminals that fit, crimped it onto the old earth strap and bolted it up to the alternator , started the car and same issue. Ran like shit and was reading 12.2 at the battery.  For a "plug and play" advertised kit thats not very plug and play but alas.  My question is , am I missing something ? Ive been reading that some people recommend upgrading the stock 80 amp alternator fuse to a 140 amp but I dont see how that would stop the alternator charging especially at idle not under load.  Regardless ive pulled it out and am going to get it bench tested by an auto elec tomorrow but it would be handy to know if ive missed something silly or have done something wrong.   
    • My wild guess is that you have popped off an intake pipe....check all of the hoses between the turbo and the throttle for splits or loose clamps.
    • Awesome, thanks for sharing!
    • To provide more specific help, more information is needed. What Android screen? What is its wiring diagram? Does the car's wiring have power at any required BAT and ACC wires, and is the loom's earth good?
    • So, now all you need to do is connect the 2 or 3x 12v feeds into the unit to permanent 12v, ACC 12V and IGN 12V that you can find in the spot behind the stereo, and the earth, and then it will switch on with the car.
×
×
  • Create New...