Loss of boost when I haven't touched anything?

[Bibby]

Whilst away my car was parked up for a week in Bristol Airport. When we got back and set off home, I remarked at how noisier it seemed with the foot down, in as much that I could really hear the "whooooosh" of air as I accelerated, like a hissing air sound. Those of you with cone filters will know what I mean.

Anyway, I wasn't convinced the car was performing as it should. Just been for a test blast and sure enough, she's only boosting to 1.2/1.3 bar instead of the usual 1.5/1.6 bar.

The car was boosting fine before I went away. I have filled the car with fuel since returning too but it has made no difference. I am convinced that the rush of air noise is louder than before too.

I have checked the hoses and they seem to be all connected up ok.

Possible cause? What can have happened with the car being sat idle for seven days?

[4WheelDrifter]

Maybe some rodent has nibbled through one of your hoses.

[4WheelDrifter]

Or maybe a bird has nested in your airbox!

[porkkis]

Faulty bypass or bypass control hose?

[Bibby]

Where do I find that Porkkis?

It seems odd that just by not driving for a week, I've acquired a boost leak.

[dan_b]

The rubber has probably finally rotted becuase of all the jet exhaust pollution

[alg]

If you are finding the leak difficult to trace. Contact Lee re one of his kits that enable you to test the hoses.

[Bibby]

I got a bit carried away.... and ended up taking the bumper off, and the intercooler. First time for everything.

I couldn't see anything blatantly obvious other than the connection between the intercooler and turbo. The hose didn't seem to be fitted to the intercooler properly.

Hopefully that's all it is. I do have a set of Paul's Samcos on order, but I can't be with no car waiting on those. Will fit it all back together at the weekend and see what happens...

[alg]

Well known weakspot. Lee has a kit for that too IIRC ! Got one at Baschurch but have yet to fit it !

[Bibby]

Hurrah!

Two suspect connections and one split in the hose that runs from the base of the turbo to the intercooler/DV. Repaired the hose, gashed up the connection where the o-ring is with silicon and hose repair tape, job's a good-un.

Roll on aby samco's!