Hey guys, I have an '89 325iX that has an MM 2900 Sport. It has headers, high flow cat / Magnaflow silencer, 286/276 cam, MM ST HiFlow Head, 10:1 CR, stock AFM with CAI, Bosch 344 DME.
Couple of questions with it:
1) It seems to run hot in traffic (between 1/4 line and center when moving; starts to get up to 3/4 line when sitting in traffic) - Head gasket replacement, water pump, thermostat, and coolant flush were done in March.
Is this normal? Should I do an electric fan conversion?
2) It idles really strange - I have read that a variable idle is pretty normal for the M20, but here is what is does:
Soooo, what should I expect it to idle like?
Thanks!
Couple of questions with it:
1) It seems to run hot in traffic (between 1/4 line and center when moving; starts to get up to 3/4 line when sitting in traffic) - Head gasket replacement, water pump, thermostat, and coolant flush were done in March.
Is this normal? Should I do an electric fan conversion?
2) It idles really strange - I have read that a variable idle is pretty normal for the M20, but here is what is does:
- cold start - high idle (1500 - 2000 rpm);
- normal operating temp - variable idle (600 -1100 rpm) and sometimes slight vibration;
- with A/C on - high idle (2500 rpm +) whole car vibrates and water temp usually goes to 3/4 line or higher
Soooo, what should I expect it to idle like?
Thanks!
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