Had the car dynoed today after my XE 224/230 install. Let's just say I am very happy with the results! 322.6 RWHP!!!! compared to my previous of 276.8 RWHP a 46RWHP gain!!! Anyways at the top end of 6300 the guy let out of it and let the engine drag for a couple seconds (A4 tranny in drive) and some white smoke seeped out the tailpipes. What is that all about? I had two runs and it did it on both runs, but only at top rpm and the first initial shutdown of each pertaining run. After that no white smoke at all and the car runs great! You guys have any idea what could cause that white smoke???

Jeff

 

White smoke generally comes from burning coolant. If your sure it was white smoke, you might have a bad head gasket. I would keep close tabs on your coolant level.

Very nice dyno numbers by the way! Assuming you have stock heads, those are very stout numbers!

 

if it was a blown head gasket it would smoke all the time wouldnt it? thats the case i have seen with most of them, i thought i blew one once but it turns out everynow an then i smoke a little =P i think its actually because of all the fumes, i dont think its steam of any sort, i dont have any emissions stuff, do you? maybe thats the prob

 

Not necessarily. A partially blown head gasket that will probably be full blown very soon.