Since I put my Milltek on, I've noticed that I hit a higher PSI # than while on stock
03-25-2004, 04:57 AM
#1
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Since I put my Milltek on, I've noticed that I hit a higher PSI # than while on stock
2000 S4 Stock ECU with the EFU Boost gauge. (never chipped)
I have the Bosch 710N Bypass valves installed.
I put on my Milltek exhaust on about 4 weeks ago, and over the last few days it's been a little warmer out. (50 degrees in comparison to the 20-30's we've had)
While the stock exhaust was on the S4, the EFU boost gauge would show maybe 9.8 -10.0 PSI or so. I know that running entirely stock the max boost I should hit is 10.2.
Now with the Milltek on, the last few days I've hitting 10.4 and 10.8 and this morning I hit 11.4 PSI for a second. It seems to be A LOT easier to hit higher PSI #'s
My questions are:
Is it normal to be seeing higher boost levels with an aftermarket exhaust on with the stock ECU?
And is it safe to assume that it's easier to hit higher PSI #'s due to the warmer temperatures?
I have the Bosch 710N Bypass valves installed.
I put on my Milltek exhaust on about 4 weeks ago, and over the last few days it's been a little warmer out. (50 degrees in comparison to the 20-30's we've had)
While the stock exhaust was on the S4, the EFU boost gauge would show maybe 9.8 -10.0 PSI or so. I know that running entirely stock the max boost I should hit is 10.2.
Now with the Milltek on, the last few days I've hitting 10.4 and 10.8 and this morning I hit 11.4 PSI for a second. It seems to be A LOT easier to hit higher PSI #'s
My questions are:
Is it normal to be seeing higher boost levels with an aftermarket exhaust on with the stock ECU?
And is it safe to assume that it's easier to hit higher PSI #'s due to the warmer temperatures?
03-25-2004, 05:58 AM
#3
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Thanks for the answers....finally did get a good exhaust and "stopped" all the leaks...
the leaks that are around the "y" exhaust pipe ends. www.torcausa.com/AccuSeal.htm have awesome clamps. THANKS DAP!
I really think that Stratmosphere needs to re-visit how they pack/ship this exhaust. The big bags of "air" are not appropriate for shipping an exhaust system.
Thanks for asking!
So seeing a higher boost level with an aftermarket exhast will raise turbo boost pressure aprox. 1 - 1.3lb.?
I really think that Stratmosphere needs to re-visit how they pack/ship this exhaust. The big bags of "air" are not appropriate for shipping an exhaust system.
Thanks for asking!
So seeing a higher boost level with an aftermarket exhast will raise turbo boost pressure aprox. 1 - 1.3lb.?
03-25-2004, 06:26 AM
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the exhaust does tend to raise the boost seen a bit -- the warmer air also will cause a rise. The
air going into the intake is warmer (less mass) therefore your need more of it....more hot air = less cold air.
