woolz

just thought id post up two pics for anyone who wants to have a look. first is a scoobysport decat downpipe which i ordered from api.
2nd is harvey's wrapped decat flexi up-pipe.

madmooro

is that the one from manifolds to turbo ??

scoobfan

Are you going to lag the downpipe aswell?

Would be worth it whilst it's off, it would help reduce under bonnet temps
and also increase the spool up time as it helps keep the heat in the pipe and increases gas velocity.

Rob

madmooro

ahh i dont want to hear stuff like that .i changed the mid section a couple of weeks ago and thought as i had half the system off would take it from turbo back ,off and as i lucky enough to have a mate who is a tig welder get him to fill all internal welds and grind smooth.dont fancy taking it all off again ,but does it help in all truth fullness to wrap from down pipe back ??

woolz

yes the uppipe is from the manifold to turbo! im not sure about wrapping the downpipe but if what you say is true about the spool up i might just do that!

JTaylor

Yes it does help, but you won't be missing out on earth shattering gains if you don't

madmooro

thanks taylor

does any one reckon my smoothing internals on exhaust help,all though wrapping does a little what does it help other than spool up .was it worth the bother is it ??

JTaylor

Smoothing internals may help fractionally - but it wouldn't be perceptable.

Apart from increasing spool up rate (again, by a small amount) wrapping helps to keep under bonnet temps down. Less heatsoak = cooler charge = more power. Think about how much punchier the motor feels on a cold night compared to the summer.

I wouldn't worry too much about it. Wrapping is one of those things that you might as well do whilst your upipe/downpipe/headers are off the car.

If you regularly tracked/dragged/hillclimbed the car it may become more of a priority.

HTH

J

harvey

iTrader: (48)

Thanks for the link Woolzy.
Wrapping the down pipe will help in two areas as James has said.
Hotter gas, just like liquids, flows better.
More importantly probably is that under bonnet temperatures will be reduced.
Same goes for wrapping the turbo.
I work on the basis that "Many a mickle maks a mukle" so lots of little bits might add up to x bhp and make the car nicer to drive/safer, engine integrity wise/faster.
If anybody wants turbo blankets please e-mail me.
There are lots of gains to be had from thermal management IMHO. Keeping the hot bits hot and the cold bits cold is always a good strategy.

woolz

not that i would try but are the up-pipes easy to fit? what do you have to remove to get at them?

madmooro

thanks for the info .great to be able to understand what has been said too.ever thought of being a teacher :-)

willfal

Whats a turbo blanket? is it as obvious as it sounds? do you have to take the turbo off the car to fit it.

Will

KJD Mk1

iTrader: (3)

Anyone have a pic of the flexi up pipe pre wrap?