Heat wrapping your downpipe

[sgb32]

I've been reading conflicting opinions on heat wrapping your down pipe to increase turbo spool and wondered what opinions were.

Is the theory correct and in the real world would it make any difference?

[Deggers]

Beware of fire.

[Bubble]

My down pipe is wrapped, but that is more to stop everything melting around it!!

I have read the theory of exhaust gasses travelling faster through lagged exhaust manifolds and downpipes, but have not seen any back to back tests.

[Gordon]

My down pipe is wrapped, .

Would that be Bubble Wrap ?

[waynegts]

^^^ hehe, mines wrapped too but more to keep things around it cool and if i touch it when its hot it wont burn me lol.

[Andy Kain]

I have my exhaust manifold wrapped and also the downpipe, mine is to try to keep things cooler and to prevent my carbon bonnet melting.

[Gavin]

That is the theory... But I reckon you'd be talking minute (that's minute as in small, not minute as in 60 seconds) gains, and the main benefit would come from not melting other things in the area.

[Gambit]

That is the theory... But I reckon you'd be talking minute (that's minute as in small, not minute as in 60 seconds) gains, and the main benefit would come from not melting other things in the area.

Have to agree, my downpipe and screamer are wrapped purely because the passenger footwell was getting a bit warm and I didn't want to cook the gearbox (my downpipe is almost touching it) or the sideskirt with the screamer.

[Richf]

When heat wrap first became popular we wrapped my mates turbo'ed drag bikes manifold and exhaust , it made no performance difference but it was very nice not getting burned all the time working on it

On a downpipe i'm not sure whether it might cause it to corrode a bit quicker as it might trap moisture

[timmitime]

As tesco says "every little helps" i'm sure it will help to keep temps down as for trapping moisture it may do but when you start the car it will dry in a few seconds, and if you are wrapping the downpipe i assume it is a stainless one anyway. Hope that helps