We boost checked this a couple of times and every joint was sealed, we tested the injectors also, and there appeared to be no leak.
We were able to get up to ~9psi measured from the inlet manifold after about 20-30s of 1.5bar air - after we stopped this the pressure would slowly decrease.
If there is a remaining leak i can't find it - and it's very small, and certainly not on the inlet. This does not explain the severe problems im having surely, and either way, doesn't explain why im getting 11 AFR at WOT in 6th with 1500rpm... i.e no boost.
If i drive the cat at ~75% throttle it's fine - it will hold 1 bar and take off like a scalded cat as it should. The moment i give it WOT, it will spike at 1.5 bar and the AFR dives, which seems to kill the power and boost.
Why is the exhaust valves not correct? Surely pressure will not be held through the block as at least one of the exhaust valves will be open meaning air escapes through the exhaust? I thought the idea of a boost-leak check was to block off the throttle body and MAF hoses, and check there are no leaks in the inlet, not check everything from the airbox through to the exhaust and there is no way everything there will hold pressure.
Cheers for the help - but im not sure where to go with this now or what to do, as i cannot find any boost leaks with it
We were able to get up to ~9psi measured from the inlet manifold after about 20-30s of 1.5bar air - after we stopped this the pressure would slowly decrease.
If there is a remaining leak i can't find it - and it's very small, and certainly not on the inlet. This does not explain the severe problems im having surely, and either way, doesn't explain why im getting 11 AFR at WOT in 6th with 1500rpm... i.e no boost.
If i drive the cat at ~75% throttle it's fine - it will hold 1 bar and take off like a scalded cat as it should. The moment i give it WOT, it will spike at 1.5 bar and the AFR dives, which seems to kill the power and boost.
Why is the exhaust valves not correct? Surely pressure will not be held through the block as at least one of the exhaust valves will be open meaning air escapes through the exhaust? I thought the idea of a boost-leak check was to block off the throttle body and MAF hoses, and check there are no leaks in the inlet, not check everything from the airbox through to the exhaust and there is no way everything there will hold pressure.
Cheers for the help - but im not sure where to go with this now or what to do, as i cannot find any boost leaks with it
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