Jump to content
SAU Community

Recommended Posts

Hey.

I really hope someone can help, i have a Series 1 R33 Gtst it's mostly factory but i have recently had a Garrett GT30 with the nissan exhaust housing fitted with a hybrid frount mount intercooler, K&N Air filter, blow off valve..... it's allmounted on the factory exhaust manifold, factory dump and front in to a 3inch exhaust and all runs off the factor ECU and AFM at around 14psi.

The problem is, apparty from my range of factory gear, the car hauls ass all the way to 4000rpm and between that an 5000rpm its a real dog but after about 5100rpm it goes like a champion all the way to redline. This happens from 10psi up.

I read that this could be caused by small hair line cracks in the coil pack so i pulled them out and taped em up like it said but this seemed to make absolutly no diffrence.

Just looking for some ideas.

Cheers.

My R33 missed like a pig in the same rev band - something like wet ignition - until I taped the coils. Went fine afterwards (no missing), but the same range feels like a big flat spot. Sensation is like you are hard on the throttle and applying the brakes simultaneously. The insulation tape might stop the misses, but the coils may be failing internally. Just a thought.

I've read that the AFM might be doggy, so i'm going to give that a go....just gotta find someone round here with one. Next thing on the menu was going to be the Apexi Power FC but $1200+ is on the back burner.

Oh also it feels like a big flat spot like it's being choked.

Well, spending $1200+ on PowerFC on a car with stock turbo is a more logical upgrade path than spending a fortune on aftermarket turbo first, since stock ECU will start behaving weird past 9psi & stock R33 AFM will maxed out above 12psi.

Replacing your AFM with Z32 item will be useless if you still have the factory ECU as the ECU won't recognise the Z32 afm reading. You'll need to replace the ECU with PowerFC at the same time, since PFC has an option to recognize Z32 AFM on RB25.

Cool cool, sorry for my illogical way of thinking, I came over to the Jap Import sceen form the old V8's and as you all know when youv'e been playing with carbies and porting cylinders - ECU's and Air flow Meters are an all new game!. Does anybody know where i can get my hands on an Apexi PFC for the cheapest possible price???

Thanks fellers.

  • 2 months later...

I have a larger garett BB turbo from GCG Rated at 450hp and I am only running a standard computer with safc2 and it runs like a train...dynoed it and got 230rwkw......but next mods are new ECU & larger 555cc injectors! :D want to go the PFC but might go a MAP style ECU and ditch the airflow meters!

but not bad from a stock computer with a piggyback!....my injector are at 85%....not upping it anymore!

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

    • This looks great! Awesome to have the 5 speed with an LSD in this. The Recaro's look like SR2's or SR3's. It's a shame they've been retrimmed as they would have looked sweet in their original colours. I think I'd want my agent to be a little more up front and informative too. I've never imported but I reckon it would make me a little nervous, so the more info the better.
    • Thanks for doing that Duncan! Makes you a good person in my books. We don't get kangaroos or wombats here. But we have bats and it's similar. AFAIK it's often the mums with a baby attached that get hit because they drop lower when starting from a tree. If you hit an animal, check on it. https://www.ifaw.org/au/resources/wildlife-rescue-app An app to get the closest wildlife rescue contact.
    • My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
×
×
  • Create New...