already remapped ecu, swop it into my car?

[rayy]

well i have a civicjordan
iv got a normal ecu at the mo not chipped or anything i know someone with a jordan aswell but hes got a remapped ecu was wondering can i just swop the remapped ecu to my car if we had the simlier mods like exhaust and mani's and stuff

 

[_JT]

I think fuel maps wouldn't be a problem; with the same mods the fuel maps will probably be closer to an optimal map than stock and since fueling will probably be richer too there is no risk of running lean. But better check that.

If he's really put timing on the edge of what's possible, I'd put it back to stock.

 

[Vtec6000]

Do a dyno run with his ecu fitted in your car to see how AFR's are. You can't assume the ecu will be safe for your setup even if it is similar to your friends setup.

 

[_JT]

Vtec6000, do you agree that at least the fuel maps will always be nearer to the optimum maps than stock ASSUMING that the mods are more or less the same?

A car with mods that improve the engines capabilities will always require more fuel to prevent it from running lean. So the already mapped ECU (again, assuming the mods are the same) probably makes the car run less lean and closer to the optimal map. At least, that's what I theoretically assume.

 

[JIMBOB-EK9]

Do a dyno run with his ecu fitted in your car to see how AFR's are. You can't assume the ecu will be safe for your setup even if it is similar to your friends setup.

Very good advice there!

I sold my Hondata S300 to someone which had a map for my car, i told the guy that bought it not to drive on it & to get it remaped for his own setup!

Well he didnt & run it on my MAP & now he has a blown engine!

You can never assume these things!

 

[JIMBOB-EK9]

Vtec6000, do you agree that at least the fuel maps will always be nearer to the optimum maps than stock ASSUMING that the mods are more or less the same?

A car with mods that improve the engines capabilities will always require more fuel to prevent it from running lean. So the already mapped ECU (again, assuming the mods are the same) probably makes the car run less lean and closer to the optimal map. At least, that's what I theoretically assume.

What you are sayin is true mate!

But as said befor i would never assume these things, is just not worth it if your assumptions are wrong!

 

[Vtec6000]

Vtec6000, do you agree that at least the fuel maps will always be nearer to the optimum maps than stock ASSUMING that the mods are more or less the same?

A car with mods that improve the engines capabilities will always require more fuel to prevent it from running lean. So the already mapped ECU (again, assuming the mods are the same) probably makes the car run less lean and closer to the optimal map. At least, that's what I theoretically assume.

Thing to remember about stock honda ecu's is they run rich as default. When you custom tune a car to its setup you tune it for optimum power within a certain safety margin but fitting the ecu to a different car may exceed this safety margin so you cannot assume a tuned ecu for one car will be fine on another car of same spec.