GolfGTIforum.co.uk
Model specific boards => Golf mk6 => Topic started by: KennyGTI on 17 June 2010, 10:09
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Well got my Blue Flame exhaust fitted last week thankfully! But want to show a pic or two of the OEM downpipe! Couldnt believe how restrictive it is! It had a filter just at the flange connecting to the the turbo exhaust :huh: before going on to the cat!
(http://i48.photobucket.com/albums/f226/kenny1601/downpipe1.jpg)
(http://i48.photobucket.com/albums/f226/kenny1601/filter.jpg)
To:
(http://i48.photobucket.com/albums/f226/kenny1601/downpipe.jpg)
Kenny
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Kenny,
Presume this impoves the engine performance ?
What difference to everyday driving, noise etc ?
Also how much was the Blue Flame, is it entire exhaust ?
Apologies for the questions, I have kept up the posts on remap gains but this is new to me.
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If I remember my Bernoulli correctly, the constriction in the downpipe will reduce the pressure and draw exhaust gases through the turbo at low flow rates, maintaining rotation of the turbo and hence available boost pressure. The driver would see this as reduced turbo lag and good response to opening the throttle.
It will also reduce exhaust gas temperature which may have other benefits - increased longevity of the downpipe, control of the temperature at the cat, reduced heatsoak into the turbo housing. Your new downpipe will allow for greater bhp figures, but the original wasn't designed for ultimate power.
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If I remember my Bernoulli correctly, the constriction in the downpipe will reduce the pressure and draw exhaust gases through the turbo at low flow rates, maintaining rotation of the turbo and hence available boost pressure. The driver would see this as reduced turbo lag and good response to opening the throttle.
It will also reduce exhaust gas temperature which may have other benefits - increased longevity of the downpipe, control of the temperature at the cat, reduced heatsoak into the turbo housing. Your new downpipe will allow for greater bhp figures, but the original wasn't designed for ultimate power.
Totally agree with everything you say there mac! My car really lacks the extra boost that stage 2 will deliver, plus the guywasnt able to change from the 95 ron map to 98 ron map :sad: Just a matter of waiting i guess.+
Spartacus;
This will improve engine performance, free up some bhp! Much less resrtrictive. But really lacking the stage 2 boost it wants now!
Not that more noiser than OEM while cruising, give it some bean then yeah it is, but not too noisey TBH.
They are priced at £1060 for full turbo back 3" with high flow cat.
Kenny