Need help on stand alone ECM
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Thread Starter
Staging Lane
Joined: Nov 2013
Posts: 77
Likes: 0
From: Memphis tn
Not daily driver but will drive a lot. It's a 55 chevy sedan delivery. Want to go into the 9s with it. I don't have computer or harness that's why I was trying to find something If I need to get stock computer and harness I can. Dynospeed here in Memphis tn will tune for me
9 Second Club
Joined: Jan 2013
Posts: 394
Likes: 0
From: Just outside Memphis
Not daily driver but will drive a lot. It's a 55 chevy sedan delivery. Want to go into the 9s with it. I don't have computer or harness that's why I was trying to find something If I need to get stock computer and harness I can. Dynospeed here in Memphis tn will tune for me
If you are looking at ecu's...
Stay away from megajunk...
The fast 2.0 is good..but its a little hard to navigate quickly..and its definitely not for a novice...
Fast also makes an easy EFI system that is based on the same system as the XFI..but its a simpler install with less end user stuff to have to worry about.
Right now Holley EFI is the easiest to use..but it still takes a little bit of knowledge to get set up properly for your setup.
There's always a stock ecu with hp tuners or EFI live.. but you wont have wideband correction at wot....which you really need for forced induction if you want to tune it yourself and have it be reliably accurate afr every tome you stomp on the gas.
Of course...there are systems like the big stuff 3.. but it starts to get complicated and pricey...and honestly...its more if a drag racing ecu than a daily driver ecu..
Lots of options....just depends on your budget and your ability to tune it yourself, or learn how to tune it yourself..or find somebody who can help you get a good base tune starting point.
Stay away from megajunk...
The fast 2.0 is good..but its a little hard to navigate quickly..and its definitely not for a novice...
Fast also makes an easy EFI system that is based on the same system as the XFI..but its a simpler install with less end user stuff to have to worry about.
Right now Holley EFI is the easiest to use..but it still takes a little bit of knowledge to get set up properly for your setup.
There's always a stock ecu with hp tuners or EFI live.. but you wont have wideband correction at wot....which you really need for forced induction if you want to tune it yourself and have it be reliably accurate afr every tome you stomp on the gas.
Of course...there are systems like the big stuff 3.. but it starts to get complicated and pricey...and honestly...its more if a drag racing ecu than a daily driver ecu..
Lots of options....just depends on your budget and your ability to tune it yourself, or learn how to tune it yourself..or find somebody who can help you get a good base tune starting point.
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we run the Holley efi on a bunch of cars out there that could be if needed daily driven with great results. The user interface is very easy to learn and once you put in a base program the system does a lot of the tuning itself.
definitely do some research on it.
definitely do some research on it.
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If you are looking at ecu's...
Stay away from megajunk...
The fast 2.0 is good..but its a little hard to navigate quickly..and its definitely not for a novice...
Fast also makes an easy EFI system that is based on the same system as the XFI..but its a simpler install with less end user stuff to have to worry about.
Right now Holley EFI is the easiest to use..but it still takes a little bit of knowledge to get set up properly for your setup.
There's always a stock ecu with hp tuners or EFI live.. but you wont have wideband correction at wot....which you really need for forced induction if you want to tune it yourself and have it be reliably accurate afr every tome you stomp on the gas.
Of course...there are systems like the big stuff 3.. but it starts to get complicated and pricey...and honestly...its more if a drag racing ecu than a daily driver ecu..
Lots of options....just depends on your budget and your ability to tune it yourself, or learn how to tune it yourself..or find somebody who can help you get a good base tune starting point.
Stay away from megajunk...
The fast 2.0 is good..but its a little hard to navigate quickly..and its definitely not for a novice...
Fast also makes an easy EFI system that is based on the same system as the XFI..but its a simpler install with less end user stuff to have to worry about.
Right now Holley EFI is the easiest to use..but it still takes a little bit of knowledge to get set up properly for your setup.
There's always a stock ecu with hp tuners or EFI live.. but you wont have wideband correction at wot....which you really need for forced induction if you want to tune it yourself and have it be reliably accurate afr every tome you stomp on the gas.
Of course...there are systems like the big stuff 3.. but it starts to get complicated and pricey...and honestly...its more if a drag racing ecu than a daily driver ecu..
Lots of options....just depends on your budget and your ability to tune it yourself, or learn how to tune it yourself..or find somebody who can help you get a good base tune starting point.
I think it is nuts to use closed loop wot fuel corection on a booster car. For one is is completely unnecessary, if tuned properly the wot a/f does not float around. If your sensor goes bad who knows what it is going to do with the fueling. Widebands often fail on boosted cars once you start turning it up.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
I think it is nuts to use closed loop wot fuel corection on a booster car. For one is is completely unnecessary, if tuned properly the wot a/f does not float around. If your sensor goes bad who knows what it is going to do with the fueling. Widebands often fail on boosted cars once you start turning it up.
And regardless, you'd always use sensible correction trims, so there shouldnt be an issue, and certainly never an issue where the ecu cold remove too much fuel. And as long as you dont place the sensor too close to the engine, they should be reliable. Although the NTK sensors do seem more robust than the Bosch.
I used to think closed loop setups where never that good, and would only ever trust one to add fuel. But after using an ecu where closed loop really works....I can honestly say there is no downsides whatsoever to using it. Only positives
First see what the shop that's tuning it recommends.
For my car, I run a stock LS pcm setup. Over 1000rwhp and raced it all year on the same tune. Also gets street driven a lot.
For my car, I run a stock LS pcm setup. Over 1000rwhp and raced it all year on the same tune. Also gets street driven a lot.
We have used megasquirt/micro squirt on several cars. It works great. There are a **** ton of squirted cars in my area. If you are not tuning it your self best bet is to use whatever your tuner prefers.
I think it is nuts to use closed loop wot fuel corection on a booster car. For one is is completely unnecessary, if tuned properly the wot a/f does not float around. If your sensor goes bad who knows what it is going to do with the fueling. Widebands often fail on boosted cars once you start turning it up.
I think it is nuts to use closed loop wot fuel corection on a booster car. For one is is completely unnecessary, if tuned properly the wot a/f does not float around. If your sensor goes bad who knows what it is going to do with the fueling. Widebands often fail on boosted cars once you start turning it up.
once you use a better system, you will wonder why that thing even exists
the stock pcm even does a better job...
the only thing a stock ECU doesnt do is Wideband at WOT
does megasquirt work... yes......but it is at the low end of the spectrum as far as aftermarket ECU's rank
when you learn how to set up WOT fuel correction properly...it works for you....
example...set it up to correct to 12.0 AFR at WOT....you set learning at +25/-5
you go WOT and your fuel pump is failing.....or cant keep up for some reason like overheating....
your injectors still have a long way to go before they are maxed out...so the PCM Adds fuel.....it doesnt know your pump is failing on you..but it is able to correct...it adds 20% more fuel......you dont blow anything up....
you go back and look at the log and realize you had a fueling problem....and you realize your setup of the PCM saved you from an expensive melted piston or worse
the worst that can happen at that point... is that it thinks it has too much fuel(maybe the weather changed at the track....) so it takes out 5% at the max....
which also is a very reasonable amount for day to day correction..
the Megasquirt/microsquirt are junk....
once you use a better system, you will wonder why that thing even exists
the stock pcm even does a better job...
the only thing a stock ECU doesnt do is Wideband at WOT
does megasquirt work... yes......but it is at the low end of the spectrum as far as aftermarket ECU's rank
when you learn how to set up WOT fuel correction properly...it works for you....
example...set it up to correct to 12.0 AFR at WOT....you set learning at +25/-5
you go WOT and your fuel pump is failing.....or cant keep up for some reason like overheating....
your injectors still have a long way to go before they are maxed out...so the PCM Adds fuel.....it doesnt know your pump is failing on you..but it is able to correct...it adds 20% more fuel......you dont blow anything up....
you go back and look at the log and realize you had a fueling problem....and you realize your setup of the PCM saved you from an expensive melted piston or worse
the worst that can happen at that point... is that it thinks it has too much fuel(maybe the weather changed at the track....) so it takes out 5% at the max....
which also is a very reasonable amount for day to day correction..
once you use a better system, you will wonder why that thing even exists
the stock pcm even does a better job...
the only thing a stock ECU doesnt do is Wideband at WOT
does megasquirt work... yes......but it is at the low end of the spectrum as far as aftermarket ECU's rank
when you learn how to set up WOT fuel correction properly...it works for you....
example...set it up to correct to 12.0 AFR at WOT....you set learning at +25/-5
you go WOT and your fuel pump is failing.....or cant keep up for some reason like overheating....
your injectors still have a long way to go before they are maxed out...so the PCM Adds fuel.....it doesnt know your pump is failing on you..but it is able to correct...it adds 20% more fuel......you dont blow anything up....
you go back and look at the log and realize you had a fueling problem....and you realize your setup of the PCM saved you from an expensive melted piston or worse
the worst that can happen at that point... is that it thinks it has too much fuel(maybe the weather changed at the track....) so it takes out 5% at the max....
which also is a very reasonable amount for day to day correction..
about the squirt. i dont have any experience with the others except hptuners and efi live. what i can say is has worked great for me and at least 20 other local's are running it. other than running the engine we are doing/have done boost control based on speed/rpm/tps, nitrous control, 2step, staged multifuel injection..... i think having a strong local group of people using it helps but that could be said about any of the systems. run what ever it is you can get the most help with.
i see your point. keeping the max trims in check should keep you out of trouble.
about the squirt. i dont have any experience with the others except hptuners and efi live. what i can say is has worked great for me and at least 20 other local's are running it. other than running the engine we are doing/have done boost control based on speed/rpm/tps, nitrous control, 2step, staged multifuel injection..... i think having a strong local group of people using it helps but that could be said about any of the systems. run what ever it is you can get the most help with.
about the squirt. i dont have any experience with the others except hptuners and efi live. what i can say is has worked great for me and at least 20 other local's are running it. other than running the engine we are doing/have done boost control based on speed/rpm/tps, nitrous control, 2step, staged multifuel injection..... i think having a strong local group of people using it helps but that could be said about any of the systems. run what ever it is you can get the most help with.
Megsquirt is fairly cheap in price in comparison to other ECU's, and many people want to save money anywhere they can...
just because it has boost control, doesnt make it good....its ok...its functional...but its not all that great....
once you see an AMS-1000 in action... you will understand....but most people dont want to shell out $1000 for just boost control when they can get it with a complete system/ECU for far less money.
Last edited by soundengineer; Nov 22, 2013 at 04:53 PM.
