Jump to content
SAU Community

Recommended Posts

hey guys dunno if any of u guys have ever had this problem

but suddenly 2day my car wont get boost above -5

i haven't been using the car

but have removed my fmic and installed a stock smic

just wondering where could i have possibly gone wrong or what else could have happened

grrr

want boost back

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/
Share on other sites

Does the car idle fine? Or does it hunt around a bit? Get some one to rev the car in neutral and stick your head near the SMIC and listen if you can hear a leak. If the intercooler is the only thing you have touched, then your problem lies there.

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4145073
Share on other sites

oh ok

so thats good

i was kinda thinking for some reason i coulda poped my turbo

but thats unlikely right?

i do rev it up to about 4.5k when i turn it on sumtimes just to check it was working when i installed the intercooler

but didnt pay attention to the boost at that time

but thats unlikely to have cause it right?

so more than likely its the piping not completely sealed?

any tips on sealing the pipes really good?

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4145361
Share on other sites

wat u mean rags?

is it likely at all that the smic is damaged?

by damamged i mena have a hole

If you had a hole, like a decent one in the SMIC, you'd have more dramas then no boost. It would be like trying to run with a cooler pipe off...

Rags, as in CLOTH...

Pull it all off, check pipes for blockages etc.

If you're only seeing MINUS 5, on the boost gauge, you're not even hitting atmospheric pressure, IE, you can't flow enough air through the pipes to even satisfy the engine if it were normally aspirated. You don't have a hole in the pipes, you have a blockage somewhere.

Either that, or have you taken the car for a drive and tried to boost it?

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4146007
Share on other sites

nah the car has no rego atm

so cant take it for a drive but when i rev it up a lil...it goes from minus seven up a bit then drops down a bit agen

and stays at that point

so its likely i have a blockage or leakage sumwhere?

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4146650
Share on other sites

just reving it normally can bring up boost

or am i wrong and imagining things?

On the stock turbo i think you can bring it onto a little bit of boost, 1-2psi, but most cars with a larger turbo you can't bring it onto boost without putting it under load.

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4149691
Share on other sites

well there is your problem lol

the car needs to be under load to create boost.....

take it for a drive....

Agree'd but you would still be able to hit 0 and should be eaisly able to pass -5... check for obstructions.

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4150038
Share on other sites

just reving it normally can bring up boost

or am i wrong and imagining things?

Depends how hard you're prepared to rev it and for how long to make boost...

Take it for a drive, you're most likely imagining things, and nothing is wrong.

Link to comment
https://www.sau.com.au/forums/topic/236840-losing-boost/#findComment-4150392
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

    • I just got to work and skimmed through 61508 and 61511. I was surprised the CSA adopted both, but neither are enforced. To recap what I read, it states that in a perfect world, they should be segregated but they acknowledge that this is not industry standard and clearly mention that they allow mixing of safety and non-safety. 61511 also mentions software segregation like AB does in their safety PLC's.   Now if only I could go back to control, let alone safety over comms. In my current line of work, we're only allowed monitoring and basic control over comms. Everything critical must still be hard wired as much as possible. 
    • I've unfortunately never been as they're on the complete other side of the continent and another country that isn't currently letting us in as easily as they use to. I even heard their stop signs over there actually say "Stop" instead of "Arret". If I decided to trek the 48h drive, I wouldn't know when or where to stop haha. Whenever I order parts from UP Garage, I order from Japan as it's cheaper. Same with GKTech... oddly enough, it's cheaper shipped from Australia then it is the US.  UP Garage Japan operates their US leg though, unlike Tomei. If Tomei JPN had the power to close down Tomei USA, I'm sure it would be done in a day. They're two completely separate entities. Tomei JPN messed up somewhere originally agreeing to its creation and got sacked big time. 
    • I asked someone about this and he told me about the Audi 1.8T engine. But I think it would be difficult to swap
    • I don't know that machine specifically, but I'd personally go for something with a little more kick than 130amp. Around up to 180 would be good. At the 6mm range, you're really pushing the machine hard and don't have a long period you can run for with out needing to give it a rest. Lots of MIG machines come with a regulator and hose. A lot will come with a starter roll of wire too, but it isn't too expensive to buy. I'd recommend NOT buying a massive roll too, as you don't want it sitting around FOREVER in the machine between uses and potentially going to shit. For thin sheet metal, get a roll of 0.6mm if you're doing over 3mm and above, switch over to 0.8mm wire. Even by 2mm you'd probably really want to switch. As for gas battle, it's all swap and go style now. You'll pay a bottle deposit, and then X amount to swap for a full one. I think it's like $200 or $300 for a D Size bottle upfront as "deposit", and like $110 to $150 per swap. My D size CO2/argon bottle lasts a fair bit of welding on the MIG. And I run an E size bottle on the TIG. For DIY MIG, stick with a D size bottle. If you really start to get into a LOT of welding and doing it really regularly, then upgrade. If you're like most DIY car guys, one D bottle will last you 2 or 3 years easily. I think I've been on my current bottle about 5 years. It is starting to get low, but I've been smashing it a lot more the last 6 months.
    • SR20s came with cars like the Bluebird and Primera, but the RB20 never came. The ones in Turkey were either brought in specially or from abroad. That's why RBs aren't as common as SRs. And if a part breaks or I need to replace it when doing maintenance, it's harder to find parts for RBs.
×
×
  • Create New...