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Need Help! R33 Gts-T With 90Kw

famous33

By famous33,
in Engines & Forced Induction

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famous33 Explorer

famous33

Posted
Posted

I have an auto 93 r33 GTS-t and it is only making 90kw on the dyno ...

it has no power down low, or even thru the middle rev range, BUT i can feel it hit boost around about 5,000rpm ..

the only mods that are on it are:

* HKS Superdragger exhaust

* Turbosmart BOV

* Turbosmart boost controller

even before any of the above mods were made it still ran like shit, and my mate had it on his dyno today and it has only made a top of 90kw, he had thought that the cat may have collapsed but that isnt the case .. he has told me that r33's havent got the best standard ECU, BUT some are quite good and others are shitty its just the luck of the draw ..

what could be the problem?? he is flat out with work and unfortunately didnt have the time today to go over it all ..

any help would be greatly appreciated!!!!!!!

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Factory boost level?

If so you'd only expect around 140rwkw or so, and the auto will suck about 10k off that. So a problem yes - most likely as stated around the timing of the CAS, or the actual cam belt being off a tooth as well causing issues (also common).

famous33 Explorer

famous33

Posted
  • Author
Posted

Thanks for the feedback guys, my mate had done a smoke test and it had come up clear so we will check the timing asap, but its no longer running stock boost level, he set it at around 9psi I think

famous33 Explorer

famous33

Posted
  • Author
Posted

That's what I would like to try, so if anyone in Newcastle or the Central Coast has a known working ECU and would let me try it out it would be much appreciated and I can get a carton of beer or whatever for their time and help!!!

famous33 Explorer

famous33

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If it suits you more pal I'd be more than happy to wait till the weekend until its out permanently, how's that sound for you? Where are you from, I could come pick it up and try it out at your place

HR32GTS 4DOOR Community Regular

HR32GTS 4DOOR

Posted
Posted

I have an auto 93 r33 GTS-t and it is only making 90kw on the dyno ...

it has no power down low, or even thru the middle rev range, BUT i can feel it hit boost around about 5,000rpm ..

the only mods that are on it are:

* HKS Superdragger exhaust

* Turbosmart BOV

* Turbosmart boost controller

even before any of the above mods were made it still ran like shit, and my mate had it on his dyno today and it has only made a top of 90kw, he had thought that the cat may have collapsed but that isnt the case .. he has told me that r33's havent got the best standard ECU, BUT some are quite good and others are shitty its just the luck of the draw ..

what could be the problem?? he is flat out with work and unfortunately didnt have the time today to go over it all ..

any help would be greatly appreciated!!!!!!!

THIS is the EXACT same problem I am having after my engine swap. shitty power down low, makes boost fine but no pull untill 5000rpm

Checked everything I could by myself, Cam timing exhaust restriction boost/vacuum leaks etc. Also If you put a timing light on it can you actually get a reading, mine just jumps around.

I noticed the other day that my injectors are not the standard purple colour they are red, so im guessing thats my issue and a long shot but could be yours???

Crazyduck Contributor

Crazyduck

Posted
Posted

I've only ever seen this problem in marine and I'm not sure what spark plugs are required in rb's but I've seen a mercury 75hp have crazy issues and jump around on the timing light because the resistor in one of the spark plugs failed.

  • 2 weeks later...
famous33 Explorer

famous33

Posted
  • Author
Posted

ok well i tried a new ECU this afternoon and no difference, so i will be moving onto trying a new AFM ..

if anyone around the newcastle/central coast region has a spare afm for a series 1 33 that i could borrow it would be much appreciated !!

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