ecu
Honda-Tech Member
Joined: May 2000
Posts: 6,094
Likes: 6
From: PASADENA, CA, USA
Re: ecu (jerzeytib)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jerzeytib »</TD></TR><TR><TD CLASS="quote">What exactly does a chipped ecu do? What is the purpose of chipping an ecu?</TD></TR></TABLE>
Well, for a naturally aspirated Honda engine, having an ecu chipped or reprogrammed is good for when you add bigger than stock cams, because bigger camshafts raise the powerband & redline of your engine; so, you wanna take advantage of that. If your engine doesn't have any internal upgrades, camshafts mainly, an ecu upgrade is rather useless, in my opinion. Your best just sticking with the stock ecu/programming if you haven't upgraded your camshafts to Type-R cams or better.
What the programming can do is:
bump up the fuel + timing maps
raise the rev limiter (customizable)
change the VTEC crossover point (customizable)
disable the speed limiter (on JDM ecu's)
disabling other sensors can be done as well (depends tho)
convert non-vtec ecu's to vtec ecu's (depends tho)
Now, for a turbo application its good to have the ecu reprogrammed for dumping more fuel as well as for upgrading the camshafts. I'm not really a turbo guru though, I just know you need more fuel dumpage when turbo'ing an engine. Actually its better to run an whole other ecu system/aftermarket fuel management system, such as an AEM EMS or other system when going turbo to fine tune.
Well, for a naturally aspirated Honda engine, having an ecu chipped or reprogrammed is good for when you add bigger than stock cams, because bigger camshafts raise the powerband & redline of your engine; so, you wanna take advantage of that. If your engine doesn't have any internal upgrades, camshafts mainly, an ecu upgrade is rather useless, in my opinion. Your best just sticking with the stock ecu/programming if you haven't upgraded your camshafts to Type-R cams or better.
What the programming can do is:
bump up the fuel + timing maps
raise the rev limiter (customizable)
change the VTEC crossover point (customizable)
disable the speed limiter (on JDM ecu's)
disabling other sensors can be done as well (depends tho)
convert non-vtec ecu's to vtec ecu's (depends tho)
Now, for a turbo application its good to have the ecu reprogrammed for dumping more fuel as well as for upgrading the camshafts. I'm not really a turbo guru though, I just know you need more fuel dumpage when turbo'ing an engine. Actually its better to run an whole other ecu system/aftermarket fuel management system, such as an AEM EMS or other system when going turbo to fine tune.
Honda-Tech Member
Joined: Jan 2003
Posts: 3,319
Likes: 2
From: some where in a locked cage
Re: ecu (Katman)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Katman »</TD></TR><TR><TD CLASS="quote">
Well, for a naturally aspirated Honda engine, having an ecu chipped or reprogrammed is good for when you add bigger than stock cams, because bigger camshafts raise the powerband & redline of your engine; so, you wanna take advantage of that. If your engine doesn't have any internal upgrades, camshafts mainly, an ecu upgrade is rather useless, in my opinion. Your best just sticking with the stock ecu/programming if you haven't upgraded your camshafts to Type-R cams or better.
What the programming can do is:
bump up the fuel + timing maps
raise the rev limiter (customizable)
change the VTEC crossover point (customizable)
disable the speed limiter (on JDM ecu's)
disabling other sensors can be done as well (depends tho)
convert non-vtec ecu's to vtec ecu's (depends tho)
Now, for a turbo application its good to have the ecu reprogrammed for dumping more fuel as well as for upgrading the camshafts. I'm not really a turbo guru though, I just know you need more fuel dumpage when turbo'ing an engine. Actually its better to run an whole other ecu system/aftermarket fuel management system, such as an AEM EMS or other system when going turbo to fine tune.</TD></TR></TABLE>
standing obviation!!!!!
others that were not mentioned were hondata and
motec.
Well, for a naturally aspirated Honda engine, having an ecu chipped or reprogrammed is good for when you add bigger than stock cams, because bigger camshafts raise the powerband & redline of your engine; so, you wanna take advantage of that. If your engine doesn't have any internal upgrades, camshafts mainly, an ecu upgrade is rather useless, in my opinion. Your best just sticking with the stock ecu/programming if you haven't upgraded your camshafts to Type-R cams or better.
What the programming can do is:
bump up the fuel + timing maps
raise the rev limiter (customizable)
change the VTEC crossover point (customizable)
disable the speed limiter (on JDM ecu's)
disabling other sensors can be done as well (depends tho)
convert non-vtec ecu's to vtec ecu's (depends tho)
Now, for a turbo application its good to have the ecu reprogrammed for dumping more fuel as well as for upgrading the camshafts. I'm not really a turbo guru though, I just know you need more fuel dumpage when turbo'ing an engine. Actually its better to run an whole other ecu system/aftermarket fuel management system, such as an AEM EMS or other system when going turbo to fine tune.</TD></TR></TABLE>
standing obviation!!!!!
others that were not mentioned were hondata and
motec.
Member
Joined: Apr 2003
Posts: 3,347
Likes: 0
From: NL, CT, cuba
Re: ecu (Xazzu)
My car is a totally different car with my custom tuned chipped ecu.
It's a D16Y8 with I/H/E. That's it.
Keep in mind, from the factory, the car is tuned for several considerations, that you might be willing to sacrifice.
Fuel economy, emissions compliance, noise...
My car isn't quick by any means, but it's a lot nicer driving it now...
-PHiZ
It's a D16Y8 with I/H/E. That's it.
Keep in mind, from the factory, the car is tuned for several considerations, that you might be willing to sacrifice.
Fuel economy, emissions compliance, noise...
My car isn't quick by any means, but it's a lot nicer driving it now...
-PHiZ
Joined: Oct 2003
Posts: 1
Likes: 0
From: Astoria, NY, USA
Re: ecu (Katman)
Hey katman,
Great info on ECU. I have a different question. I have had some problems with my Honda Civic 92 starting. Sometimes when I jiggle some of the cables going into toe ECU, it starts. What do you think it might be? I am thinking it has to be some wires, since if it was ECu, I don't think it would ever start. Do you know where I could find an electric scheme for my car, so I can try tracing the wires?
Thanks,
Film 141
Great info on ECU. I have a different question. I have had some problems with my Honda Civic 92 starting. Sometimes when I jiggle some of the cables going into toe ECU, it starts. What do you think it might be? I am thinking it has to be some wires, since if it was ECu, I don't think it would ever start. Do you know where I could find an electric scheme for my car, so I can try tracing the wires?
Thanks,
Film 141
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