Jump to content
SAU Community

Recommended Posts

I've fitted a couple of different bleed valves and each time it wants to hold close to the right boost in 1st, then every other gear tries to go all the way to 1bar before it hits the fuel cut. Anybody got any ideas as to what this is? Im concerned that if i get an electronic one it may not work also.

Thanks

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/
Share on other sites

fuel cut is a bitch! you should be able to get a bleed valve to spike at about 1bar and drop a little under without hitting fuel cut. if you have a standard turbo i wouldnt run it any higher than that anyway. if you have an aftermarket turbo i would get your ecu retuned or buy a fuel cut defender...

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/#findComment-499954
Share on other sites

The problem isn't the fuel cut. The bleed valve was adjusted accordingly and no matter what it doesn't hold boost. I set both bleed valves to run at 0.7bar and each time no matter which way i turned the valve 1st gear would hold the boost level desired then 2nd gear onwards would try and go all the way to 1bar. Any ideas?

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/#findComment-501145
Share on other sites

hmmm have you tried moving the bleed valve all together, i know my turbosmart valve wouldnt run anything less than 1bar, they arent very good.

otherwise look for a split in the actuator hose, ive seen splits that cause overboost a few times.

first try removing the bleeder, if it still runs over 0.7-0.8bar replace the vacume hose and try again

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/#findComment-501195
Share on other sites

nah buy an EBC they control the boost level, basically you tell it what you want to run and it holds the wastgate closed till it reaches that level then opens it.

they are far more precise than a bleedvalve. im ditching my bleedvalve for one now.

im looking at either a blitz SBC IDii or an apexi AVCR both of those give you alot of precise adjustments.

not as cheap as a bleed valve unfortunately :D

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/#findComment-501249
Share on other sites

IT may have a 3" dump pipe on there but im not 100% sure, either way it goes straight into a stocko silvia exhaust after that. Where do i remove the stock boost solenoid??? 2nd gear onwards doesn't hold boost at all no matter where the bleed valve is adjusted to. Im just concerned that when i get an ebc it won't work either.

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/#findComment-502960
Share on other sites

My friend has a 180sx 2L turbo. he put his on the dyno the other day at CRD and was dissapointed that it wouldn't hold boost either, he has a FMIC, dual stage boost controller, bosch fuel pump, filter exhaust...

CRD put it down the the fact that no matter how high they boosted it, it wouldn't hold the boost because there was a loose spring in the turbo that was soft. so his spikes to 17PSI but drops straight off to 12PSI or so. only makes 153.4KW at the wheels. it should be making more, he is going to change the turbo.

sorry to ramble, just thought if you had a stock turbo that might be the problem

Link to comment
https://www.sau.com.au/forums/topic/23353-boost-probs/#findComment-503529
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


  • 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...