Jump to content
SAU Community

Boost Problems

simonyoungr33
 Share

Recommended Posts

simonyoungr33 Explorer

simonyoungr33

Posted
Posted

Hi guys

I have an r33 Series 1.5 i recently converted it to manual as it was auto. now when it was auto i was running 10PSI fine car ran great now that i have converted it and replaced computer with the manual comp it will only do stock boost 7Psi i modified stock actuator to go staight to 7 psi so no in between. so when ever i try and boost it over the stock boost to like 8 9 or 10 psi its almost like i hit detination or something like fuel cut. it feels like a bad coil pack as i had that problem when i bought the car but fixed that with split fire coil packs

Also i have a stalling problems mainly in reverse revs just drop and don't come back any ideas??

i have PWR front mount

Split fire coil Packs

Iridium Plugs

lighten fly wheel

blah blah and more

car was dynoed and it made 245HP 183kw on stock boost

any ideas guys car runs fine untill you try and boost over stock boost

Link to comment
https://www.sau.com.au/forums/topic/260357-boost-problems/
Share on other sites
R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Sounds like the stock ECU have a fit @ too much load - try searching with "R&R", happens to just about everyone.

As for the stalling, do you have a ATMO BOV? IF so, thats the cause.

If not, you need to clean the AFM, TPS and so on... there are guides in the DIY section

Link to comment
https://www.sau.com.au/forums/topic/260357-boost-problems/#findComment-4467594
Share on other sites
Pal Veteran

Pal

Posted
Posted

was it making this power with the auto? when you do a conversion you up the rwhp by about 30 to 40 hp, i done one a few years back and went from 215 rwhp to 250 rwhp with just the conversion and a FMIC. as with all boost problems and no piggy back or after market ecu, sounds like you have hit R&R. need one of these to fix your problem. dunno about the reversing problem.

Link to comment
https://www.sau.com.au/forums/topic/260357-boost-problems/#findComment-4467601
Share on other sites
simonyoungr33 Explorer

simonyoungr33

Posted
  • Author
Posted
was it making this power with the auto? when you do a conversion you up the rwhp by about 30 to 40 hp, i done one a few years back and went from 215 rwhp to 250 rwhp with just the conversion and a FMIC. as with all boost problems and no piggy back or after market ecu, sounds like you have hit R&R. need one of these to fix your problem. dunno about the reversing problem.

Car runs extremely rich lots of black smoke Rich and retart how do i clear it?? i have an apexi SAFC will this help??

Link to comment
https://www.sau.com.au/forums/topic/260357-boost-problems/#findComment-4467621
Share on other sites

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      R32 Gtst - Track Car

      By Duncan · Posted

      Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • Dose Pipe Sutututu
      R32 Gtst - Track Car

      By Dose Pipe Sutututu · Posted

      https://www.facebook.com/share/p/18rmVb1SKB/ 
    • GTSBoy
      Leak from Tokico BM50 Brake Master Cylinder

      By GTSBoy · Posted

      The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • No Crust Racing
      R32 Gtst - Track Car

      By No Crust Racing · Posted

      Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • MBS206
      R32 Gtst - Track Car

      By MBS206 · Posted

      I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...