Guys, Recently on a rare "Cold" San Diego morning I was allowing my 1986 328GTS a little extra warmup time... So I brought the empty trash containers from curb while waiting and noticed that my "drivers side" exhaust was significantly stronger then the other side! ( steam difference was noticeable ) Is that normal? It almost looks like only one side works... While placing your hand in front of each side you can definitely notice a difference in pressure between the ports... The car runs perfect..but this has been bugging me... Not to many 328's nearby to confirm.. Sounds stupid I know.. but somebody should know.. Thanks Patrick
When I test drove a Mondial at a dealer, it did that too. The guy said it was just condensation in the pipe; they are all connected but one side condenses more than the other. When it warmed up it was fine; I was skeptical at the time but they did just finish the major on it so I assume it was fine. I didn't buy it for other issues though. Ken
Do you think the exhaust was designed for an idling engine? Bring the rpms up and it will even out. In other words... it's normal
Having the car in northern Italy I usually have to warm it up for a while during winter (last saturday was -3 celsius...) with the same result. Apart from the fact that, on top of my head, the steam cloud comes from the right side... Ciao Eugenio
AND THE ANSWER IS---- On all the US 328 cars, both of the headers merge into a single pipe before entering the muffler and therefore there is always one side that gets a more direct gas flow than the other. the bulk of the gas takes the path of least resistance with only the "overflow" coming out the other side
I'm relieved.... I was just concerned I had a blockage and my EGT would rise without my knowledge..!!!! Well, based on the majority consensus...I'd say I'm ok..... Really appreciate all the help everyone.....!!! What would a new owner do without this website..! damm.. Patrick
My car is exempt now but I was wondering if you could get the guy to stick the sensor in the exhaust with the less output?
Robert. Ive had the same thought. However the test just measures percentages of the total so its irrevalant.