Jump to content
SAU Community

Misfire

jazza08

By jazza08,
in Engines & Forced Induction

 Share

Recommended Posts

jazza08 Mentor

jazza08

Posted
Posted

Hey peeps

I was curious if there is a quick fix for my problem.

When i get to full boost (18-20psi) and change hard from 2nd to 3rd and the gate goes to close then re-open it stutters, its like a mis-fire... Sometimes it wont do it if im abit easier on the change or it will never do it if im not on full throttle when i change.

It goes full throttle, change, power on, stutter, power on as normal till redline in 3rd.

Any ideas??

Never does this from 1st to 2nd, and it hasn't from 4th to 5th either.

Ne replys would be cool!

Thanks all

Link to comment
https://www.sau.com.au/forums/topic/131713-misfire/
Share on other sites
700HP-GTR33 Mentor

700HP-GTR33

Posted
Posted
Well that makes two of us who'd like some help hehe :)

Mine never did it on stock turbo, i think it cud have somethin to do with the external gate... im not quiet sure!!

There must be a pressure build up ,changing the gears has nothing to do with it. Taking your foot off the pedal quickly at high boost levels has.

Do you both run front pipes and pods?

I believe they are to small for the turbo's and the boost levels you are running.

The air is sucked in at maximum boost and then shut out,

If your pipes are not large enough a vacuum can form which tries to spin the turbo's the other way,once they try to spool again.

This would happen if you are using standard air boxes and larger turbo's with higher boost.

The other problem can be in your blow off valve and how effective it is. If you have one that is?

These help the turbo's release unwanted air through a wastegate at gear changes or really

between gas pedal intervals.How well have you installed these? If you have none then pressure builds up and a vacuum once again might form especially at high boost levels.

Last but not least you have timing problems,answer is easy to that one, get a tune.

I hope i have helped in some way.

Cheers

Tekin

Link to comment
https://www.sau.com.au/forums/topic/131713-misfire/#findComment-2440517
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

    • PranK
      Chris' Toyota Mark ii JZX110

      By PranK · Posted

      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.
    • soviet_merlin
      Duncan's V37.......race car?

      By soviet_merlin · Posted

      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.
    • Murray_Calavera
      Jacks that fit under GTR lips that can reach the subframe?

      By Murray_Calavera · Posted

      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. 
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      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
    • Duncan
      Chris' Toyota Mark ii JZX110

      By Duncan · Posted

      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...