bhp loss in the hot weather
22 May 2010, 05:02 PM
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bhp loss in the hot weather
how much do you think you lose as my car does not feel like 390bhp today it this hot nasty weather even with my fmic, oh and ive notice a lot more poping and banging out of the exshaust to
22 May 2010, 05:25 PM
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The efficiency of your FMIC will be compromised in the same way as a top mount if the air flowing through it is hotter.
In addition, without knowing what ECU you have, if it lacks boost control air temp compensation (for example UK classics), your car will naturally develop less boost when it's hot than it does when the inlet air is very cold. In order to maintain a totally consistent boost response the wastegate duty needs to be temperature compensated.
Furthermore, again depending on what ECU you have and how it is mapped, it may well be programmed to reduce the boost target as ambient (or charge air) temp rises, over and above the natural variance just described.
In addition, without knowing what ECU you have, if it lacks boost control air temp compensation (for example UK classics), your car will naturally develop less boost when it's hot than it does when the inlet air is very cold. In order to maintain a totally consistent boost response the wastegate duty needs to be temperature compensated.
Furthermore, again depending on what ECU you have and how it is mapped, it may well be programmed to reduce the boost target as ambient (or charge air) temp rises, over and above the natural variance just described.
22 May 2010, 05:29 PM
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i have a sim tec dude but i guess all turbo cars seem to suffer in the extreme temps when you just poping about town stoping and starting and then going for a qucik pull of
22 May 2010, 05:51 PM
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You'll see a headline power reduction, sure, but provided the ECU is equipped with the sensors it needs and is appropriately programmed and mapped, there's no reason why general driveability should suffer unduly.
24 May 2010, 06:25 PM
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i have my sensor in the fmic pipe just before it goes into the throttle body so your saying it would be better fitting it to the samco pipe whcih is going to throtle body and then get the map tweaked do you have a pic of where yours is fitted
24 May 2010, 09:50 PM
#7
I am not really saying that. I would prefer to have it in the Samco simply because it does not pass or conduct heat particularly well compared to the aluminium pipe.
Email me your email address and I will give you photos of where I have located them but I don't think that changing the location will make much difference and certainly not enough to warrant the change. harveysmith1@btopenworld.com
Email me your email address and I will give you photos of where I have located them but I don't think that changing the location will make much difference and certainly not enough to warrant the change. harveysmith1@btopenworld.com
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