Jump to content
SAU Community

Recommended Posts

hi guys,

i purchased my r34 GTT 2 weeks ago and yea i thought it was going great but yesterday i visited a mate that has good knowledge about cars and he test drove it told me that my boost cuts of at 5k rpm to redline.... i felt it too when i was driving it and i thought its suppose to be like that be he recons that it should be non stop till it hit the end.. why doez it cut off any ideas?

and another thing i should have asked this question a long time ago but yea didnt bother lol. my car got a electronic valve controller what doez it do and how to i set it?

tnx guys,.

Link to comment
https://www.sau.com.au/forums/topic/239589-my-boost-cuts-off-at-5k-rpm/
Share on other sites

First thing you should do before looking into elctrics is check the piping and connections for any leakage.

I had picked up my car from the chop shop (different story for another day) and on the way home the car was doing the same thing as yours i.e. losing boost ~4500rpm+.

I got home and checked the piping to find one of the connections under the airbox wasn't tightened properly. I adjusted it and fixed the problem.

So that's what I think your problem is. A fix that costs nothing except for a bit of time and effort. :banana:

c0ol stuff guys ill take it to a mech. now see whats the go. ill keep all the points you guys suggested. and yea DAN im not sure how much boost is on it going to mech now to get it checked. it has warranty anywaiz wahehehehe

update:

too it to my local "I-S motor racing" and yea the guy said that change my plugs and coils

the HKS turbo timer in the car is ancient he said they would have a clue how to do it or check.. so yea luckily i have 5 years platinum warranty on the car so yea ill take it to the mechs to get it fix..

im still hoping for the best hahaha

PS any1 selling a Turbo timer and boost controller?? im keen.. and any1 can help me fit them will have a case of beer in their fridge

cheers!!

you dont NEED a turbo timer, they are only for if you thrash your car then get out of it but want to leave it running for a bit to cool down

are you in brisbane?

will fit boost controllers for beer!

i could also take a look at your boost cut issue...

Edited by gfunkk
  • 2 weeks later...

i had the same problem in my old r33 it was runnin a haltech e11v2 tuned to run 12psi low and 23psi high but wasnt goin past 10 i checked all my pipe work and plugs and they were ok. I took it to the mechanic twice and he cldnt get the software to work on his laptop so i just ended up selling it now its someone elses problem :P

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

    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
    • Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
×
×
  • Create New...