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· Con CaC May
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878 Posts
Discussion Starter · #1 ·
OK guys, im kinda lost here. Im thinking of upgrading my Engine mangement system but dont know weather I should go with either an AEM Gen2 or motec or Pro EFI. I read and read and see many good things about each unit but also hear bad things about them. The AEM I can get a very good price in it ( that was my first choice) but then kinda lean towards the Pro EFI and Motec now. For the Motec, there is either the M48 or M800. Please chime in some thoughts.

Thanks,
Tin
 

· Toyota Powertrain Guru
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624 Posts
The motec is an excellent unit but you can get so much more included with a ProEFI without dropping an ungodly amount on extras. Learned fuel trim and idle control. AWESOME traction control and OEM type knock control. VE fuel mapping (once map is set you just tell it the desired AF). And excellent customer service. Kind of a no brainer unless you have endless funds.
 

· Boost Addicted.
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1,390 Posts
Go for ProEFI Pro128 and be done.
 

· Slow Poke
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906 Posts
If I had to do it all over again, I'd still go MoTeC ;)
 

· Registered
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7,861 Posts
Any EMS is only as good as the tuner that sets it up.

So the real question is, which EMS do the tuners that are close to you, know? That will probably dictate your decision even above and beyond price.
 

· Exclusive 1000+ Post Club
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5,724 Posts
MoTeC, ProEFI, or HKS F-Con V-Pro.

figgie makes an excellent point. Investing in a tuner is not the place to skim on cash.
 

· Registered
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1,714 Posts
+1 get what your tuner is most comfortable with

If it doesn't work out right, the tuner can always make excuses and reasons (valid or not, that's another issue) about the EMS you got. Same goes for all other parts you will be using for car car / engine (engine internals, valvetrain, brakes, wheels, suspension etc).

I had a Motec M800 in my car before. I'm still convinced it is the best system out there BUT no one could, at that point in time a couple of years back, tune it properly to idle right in traffic and other mundane, ordinary stuff. I'm sure if I were in the US, John Reed, Justn Nenni and other big-name specialist celebrity star tuner could have sorted it out with time and of course money. Sadly, I'm not there and nobody here could do it. It ran fine at WOT and a fast cruise, but traffic driving was so very bad. ANd it wasn't even making a whole lot of power then (600whp on pump)
 

· Exclusive 1000+ Post Club
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+1 get what your tuner is most comfortable with

If it doesn't work out right, the tuner can always make excuses and reasons (valid or not, that's another issue) about the EMS you got. Same goes for all other parts you will be using for car car / engine (engine internals, valvetrain, brakes, wheels, suspension etc).

I had a Motec M800 in my car before. I'm still convinced it is the best system out there BUT no one could, at that point in time a couple of years back, tune it properly to idle right in traffic and other mundane, ordinary stuff. I'm sure if I were in the US, John Reed, Justn Nenni and other big-name specialist celebrity star tuner could have sorted it out with time and of course money. Sadly, I'm not there and nobody here could do it. It ran fine at WOT and a fast cruise, but traffic driving was so very bad. ANd it wasn't even making a whole lot of power then (600whp on pump)
I thought MoTeC had a specialist group of tuners with whom they trained, or maybe something of the sort?
 

· Con CaC May
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878 Posts
Discussion Starter · #10 ·
Well, im getting ready to blow some money again. Just to clear things up for me and others. AEM only have slight software/tuning software problems? Not physical electrical problems? I like the Motec but damn its so priced up there. As for the Pro-efi 128, its in the middle. The AEM V2 is cheapest in price and my local distribution warehouse have plenty in stock. If the AEM V2 dont have any problems electrically, then I might consider going AEM. If it has problems, then its Pro-Efi 128.
 

· Con CaC May
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878 Posts
Discussion Starter · #12 ·
Damn, Anyone with Gen 2 can chime in on theirs beside tuning software probs. I read that the Gen 2 idles way better then Gen 1 versions.
 

· Registered
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1,899 Posts
Pro EFI all the way. My friends car runs amazing on it. so many great features at a great price. CAN guage is awesome displays any setting that you have the senors for. It's not very fancy but it does the job and shows almost every parameter on the engine. And Traction Control!
 

· Mustache Militia
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397 Posts
You can get the wideband from them and watch it on the can, along with other things. I still have the fjo also
My understanding with the ProEFI is that you can run the internal, or an external. Your not locked to the internal wideband if you already have one.
thanks guys.

Pro EFI sounds amazing.
 
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