Link ECU and change of exhaust
24 April 2003, 04:24 PM
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Thinking of changing me exhaust,at the mo i have scooby sport down pipe and HKS super drager.The car was mapped with the Drager fitted
if i change the exhaust will this screw the map up?
Or can i just change it with out having to have it re-mapped.
Gary
24 April 2003, 04:30 PM
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It shouldn't affect the fuelling too much (if the map is on the edge I'd have it checked, but if it's one of the known fellas work I would think it's done with some safety), what could be an issue is boost response - depending on how restrictive the old drager is vs. the new zorst you could get a bigger (or smaller depending) peak.
Do a few testruns before and after and see what happens.
High gear and wot from low rpm's, and going wot in a high gear with high-ish rpm's usually show any boost parameter problems with the link.
If it's a "hot" map with the drager, and you're going back to the stock OE exhaust I'd have a mapper look at it though - but I suspect this isn't the case.
/J
wot - wide open throttle
Do a few testruns before and after and see what happens.
High gear and wot from low rpm's, and going wot in a high gear with high-ish rpm's usually show any boost parameter problems with the link.
If it's a "hot" map with the drager, and you're going back to the stock OE exhaust I'd have a mapper look at it though - but I suspect this isn't the case.
/J
wot - wide open throttle
24 April 2003, 09:33 PM
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Come on all you techies out there some one must have some thoughts on this .
Not that i do not hear what S.A.M is saying would just like a little more input PLEASE
Gary
24 April 2003, 09:43 PM
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Starship
SAM has given you a good answer. You don't say what you intend to change to which makes giving you even a ballpark answer difficult
Answer depends on the flow characteristics of the Drager vs whatever you intend to fit
If it's a big change get Bob, if it's a small change Branko may be willing to check the map for you
SAM has given you a good answer. You don't say what you intend to change to which makes giving you even a ballpark answer difficult
Answer depends on the flow characteristics of the Drager vs whatever you intend to fit
If it's a big change get Bob, if it's a small change Branko may be willing to check the map for you
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