boost hoses
Lee M. Levitt
lee at wheelman.com
Sun Sep 23 20:43:34 EDT 2001
From: "Bernard Littau" <bernardl at acumenassociates.com>
> One of the lessons I though I learned earlier, but apparently not well
> enough, was that the hoses on boosted engines need to be more tight than I
> normally make hoses. I've wrenched cars for a long time, and have worked
> out how tight I like to make coolant hoses to minimize the hose
> distortsion and yet be tight enough to hold against the 15 or so psi max
> pressure in the coolant system. My attempt to apply this same technique
to the air
> induction system had failed several times now with hoses blowing
> off as I am re-learning hose clamp tightening 101. At 2.0 bar boost, with
> spikes above that in spite of a recirculation valve, hoses clamps need to
be
> damn tight.
Saw a clip on Speedvision about an S8 that had been either turbo or
supercharged by MTM. 460 hp, went like stink.
Watching them rev the engine at idle, I noticed the blue silicone turbo
hoses visibly growing. Pretty impressive...but I wondered if some of that
boost was going to waste...
Lee
'95.5 S6 avant
'96 A6 quattro avant
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