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'96 Cobra - Engine/Power question
I purchased a '96 Cobra this past weekend that seems to decide on it's own whether it is going to put down mucho power or just make a lot of noise and go slow (by Cobra standards).
So far, I have been unable to determine what's different between the times that it makes power vs. when it doesn't. I am certain to uncover more details as time passes but for now I'm wondering if anyone has encountered anything like this before? |
How many KMs does the engine have? Is this happening at 3150-3200 RPM by chance? Feels like the engine falls on its face?
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It is a lower HP output throughout the entire RPM band. I am slowly getting used to the cam change-over in the mid 3's but I don't think it's related.
Engine has only 62K kms on it and has been ported + aftermarket cams. |
hmm, i was going to suggest what flynnt was thinking...which would be the IRMC could be all gumed up.
most of the 96-98 need to be cleaned id say after 70,000km. could also be your MAF, they have been known to hold back on cars power if they are dirty. MAF takes 5 minutes to clean IRMC's take under six hours if you know what you are doing. check this link out...SVT PERFORMANCE good luck |
Originally Posted by White_Snake
hmm, i was going to suggest what flynnt was thinking...which would be the IRMC could be all gumed up.
most of the 96-98 need to be cleaned id say after 70,000km. could also be your MAF, they have been known to hold back on cars power if they are dirty. MAF takes 5 minutes to clean IRMC's take under six hours if you know what you are doing. check this link out...SVT PERFORMANCE good luck |
^I agree with them, also could it be a plugged catalytic converter? Are the cats stock? Is your MIL light on? Usually for a IMRC problem, it will trip the light.
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Make sure you replace the IMRC controller and not just clean the butterflys. Its the controller that usually fails causing the major power loss.
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Originally Posted by NXGHOST
Make sure you replace the IMRC controller and not just clean the butterflys. Its the controller that usually fails causing the major power loss.
i was into a ford dealer once to check the price of them, and he said that they were over 500.00 bucks...i think it was more around 8 but my memory is not very good. plus he also said that the store had never had to order one before, so they are not a problamatic thing.
Originally Posted by Ponyryd
^I agree with them, also could it be a plugged catalytic converter? Are the cats stock? Is your MIL light on? Usually for a IMRC problem, it will trip the light.
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Keep in mind guys, the power is there, just not consistently.
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Originally Posted by White_Snake
have you ever replaced one of them before????
i was into a ford dealer once to check the price of them, and he said that they were over 500.00 bucks...i think it was more around 8 but my memory is not very good. plus he also said that the store had never had to order one before, so they are not a problamatic thing. yes only if they are not operational. what i was getting at is that the PVC valve sucks up a crap load of oil, that gets gumed up on the butterflys which will cause poor airflow, and loss of power. |
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