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R
Howling noise on full throttle
Here is what it looks like. I actually have a sketch for something less cumbersome that hangs in a hole with a weighted lever. Some back-pressure really helps with warmup… -
R
Howling noise on full throttle
Yea, except when the potato lets go it might kill someone… -
R
Howling noise on full throttle
The pole is about 7’(old fiberglass antenna). The pressure generated is considerable. You can barely get the bottom of the canister to set in the ex pipe opening against the flow. The pole rests on the ground against a brick. I have a pic I can put up later… -
R
Howling noise on full throttle
Yes, green Coleman propane can fits the ex pipe nicely:) I have seen reference in a few mil vehicle pubs, to a cold weather exhaust restrictor used to warm up the engine. Have never found the actual kit/device or it’s specific publication though… -
R
Howling noise on full throttle
Yep, the ex brake backpressure is a nice load to warmup the engine at idle. I have an old propane bottle on a pole I put in the exhaust pipe on my A0 to add back pressure for warmup. The pac-brake is supposed to disengage as soon as you step on the throttle though… -
R
Howling noise on full throttle
If you don’t find anything put a boost gauge on it and see at what pressure it starts. Then you can remove the intake and exhaust line at the turbo and cap the turbo ports, then pressurize the system so you can look for it without engine/driving noises… -
R
Howling noise on full throttle
Sounds like an air leak between turbo and manifold… I would start by checking all the hose clamps and look for cracks/splits in the hose couplers. Don’t forget the line from manifold down to air compressor also…