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Blow off valve leaking or what??

rev210

By rev210,
in Western Australia

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rev210 Grand Master

rev210

Posted
Posted

Just a question to save me some stuffing about.

I have an airleak like sound once the engine trys to come on boost and power flattens off along with boost not really holding.

Other than that the engine idles great and runs very nicely under load upto the point where you try to get some boost happening.

It all started after I was demonstrating the NOS system to Miko the other night and blew off an intercooler hose, as always you crap yourself when that happens :). Due to lateness of the hour MIko and I took 4 times as long as a single non-tired person would to fix the hose.

Anyway I specualte the BOV and hope it isn't a turbo gasket or something.

Input apreciated.

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caminperth Grand Master

caminperth

Posted
Posted

Rev - I thought the standard BOV was good for 1000hp at 10 Bar? :)

Seriously - sounds like the BOV. I've got a stock one sitting round that you can bolt on to test if you like. Drop me a PM and I can give it to you over the weekend.

drifta180 Explorer

drifta180

Posted
Posted

hey i have go fast bits mach 1 trumpet bov and i reckon its pretty good (its red) hehe hehe well anyway ive got no leaks or nothing they reckon the gfb bov are one of the strongest and have a special seal and they dont leak.. i got mates with hks and one like that and he has leaking trouble to.. well ive had 2 gfb bov and no trouble yet so im happy with them and gonna stick with them.. happy bov customer.. talk to tecknik audio they did the coolest job.. ohh sorry are you allowed to plug perfomance shops .. ahh well.. old skool cuz

rev210 Grand Master

rev210

Posted
  • Author
Posted

The BOV I suspect because the leak occurs under boost only and has not got any worse. It could be a small split in a hose that opens up under boost too, but I think the BOV might be the first port of call (easiest to check).

I think I missed the cruise this morning, I was up till 3am last nite working out the family finances for a tax evaluation :(

caminperth Grand Master

caminperth

Posted
Posted

It was leaking around a plug that was installed to block a pipe.. only very minor though. Not sure if it would've cause the problems that Rev was describing..

You're a curious little cat this morning aren't ya? :)

rev210 Grand Master

rev210

Posted
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Posted

Cam,

it appears that it is probably the little vacume hose we found. Even after we blocked it up as soon as I took off it was doing the same thing again. Normally when I take off quick I get a decent amount of wheel spin, unlike last night.

I'll probably do a propper job of blocking the hose off today and see what happens.

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