Reply With QuoteI hope you're not doing this in park. I'll try it tonight on the road.Originally Posted by gvilkelis
Could anyone do a test on his bmw with m20 engine and A/C?
Hello,
On my 525 1988 m20 engine, if I hold accelerator pedal to keep steady 2000rpm and press A/C button, rpm gradually rises to about 4000rpm. And stays there until A/C cluctch disengages, or I remove foot from accelerator pedal.
Could anyone do the same test on his car and post the results? I am wonderring if there is something wrong with my car, or is it normal?
thanx!
2 Grand Master
I hope you're not doing this in park. I'll try it tonight on the road.
Ralph Mendoza Jr. - Long Beach, CA
Major Contributor
If your car is automatic, don't rev it in park or netural. You can destroy your tranny. Like Ralph said, I'll try it on the road for you tonight and see how much of a rpm rise I get.
Big, Big Time Poster
THERE"S TOO MUCH TORQUE oh noes!!!!!!!!!!!!!!111111111111111111
1990 BMW 535i 5 speed - Black on Grey, LSD
Major Contributor
It's not a matter off too much torque, it's the well documented ZF4HP22 design fault... Has seen many transmissions destroyed during emissions testing in the states.
Major Contributor
I just got back home. Driving steady at 2k rpm, AC on ... can't even tell that there is a rpm jump. Maybe a couple of hundred rpm at most. I know at idle, it's a couple hundred as well.
edit: maybe not even that much.
2 Grand Master
?????
Ralph Mendoza Jr. - Long Beach, CA
Major Contributor
Maybe he was saying that because of my username ? Who knows.
Forgot to write in my first post - the my car has a manual transmission.
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