JWT ecu or E-manage
JWT ecu or E-manage
Which one will be better in the long run and which one will be better for higher horsepower, over 300 hp
dont double post man, that's rude...
As for which is better, it depends on lots of other factors. You will be able to answer your own question once you learn more about turbos and how they work. The basics is JWT you have to get reburnt after major changes, e-manage can grow with you basically.... but there are LOTS of other things to consider. Read up more man.
As for which is better, it depends on lots of other factors. You will be able to answer your own question once you learn more about turbos and how they work. The basics is JWT you have to get reburnt after major changes, e-manage can grow with you basically.... but there are LOTS of other things to consider. Read up more man.
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Checkered-Member
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And thats why the guy with the 504hp KA is running a JWT ecu? That's why Dennis with 350hp runs a JWT ecu? Thats why Marc with 400+ runs only JWT ecu's? Come on man...it's PROVEN to work well at higher boost on countless KA's. The only draw back is the inability to change anything on it (a good thing for me who REALLY know's how to break things right).
Okay, I want to turn this post into something useful.How about some descriptions of the e manage? Has anyone here evr used and/or tuned one? I think that the emanage could be very useful with the enitre setup. By this i mean, the injectors harness, the timing harness, the boost controller solenoid, etc, etc. This wasy, you can fine tune your car without any guessing games as with jwt. Dont get me wrong...i run jwt now. I juts think that something lore along the lines of standalone is more suited to something as custom turbocharging a motor that isnt factory turbocharged. I know there are planty of pople getting good success out of a JWT ecu..im one of them. I just mean to say that the emanage would be better if it was easy to tune. Adhusting timing through your ecu can be very beneficial when it comes to saving your motor.
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C-Kwik
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I'm running an E-Manage on an S14 KA-T. Works great. The only tuning I've done is use the injector calculation feature and backed off timing at certain points. It runs perfect with 370 cc injectors. My MAF is maxing out at high RPM at 6.5 psi though so the resolution. I think the MAF may be putting out a little more voltage, but the E-Manage is limited to tuning within 5 volts. But it still runs fine. I still have yet yo get it hooked up to a wideband on a dyno to see where my A/F's are. A datalogger for the timing would be nice too. The built in datalogger only shows the timing change from the ECU's map, but I am not sure how changing the MAF signal has affected actual timing. I have a feeling it's a bit advanced. But it is easy to use and reliable so far. You can always piggyback the JWT to fine tune it. I'd probably prefer this route provided the JWT ECU was programmed with a larger MAF and larger injectors in mind so any tuning done would be minor.
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rey_boricua
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andrave wrote:don't worry about checkered memeber, he has been spreading misinformation all over this forum since he got here.
he has already been banned from altimas.net for spreading misinformation. I have never had a problem with the guy but he does just throw out info with thinking. no offense ol' checked one
Well, if piggy-backing the JWT is the best thing to do...The only thing that gets me there is cost-effectiveness.The jwt is 600 bucks, and its setp to run pretty conservatively. Fine tuning would be great, but the hp yeilded would probably be minimal until you start cranking the higher boost pressures. What was the cost for you setup? I mean how much did it really cost you in the end? What about the tuning at 5 volts? I need some clarification here-im no good with electrical work and wiring and such. Would tuning at 5 volts only be a problem? Or is that what you meant by using the 300zx maf JWT ecu? What about converting to a map sensor? Can the e-manage use a map sensor and totally ditch the maf alltogether, kind of like a standalone?
I would think that the e-manage would be the most cost effective. The initial price is close to the cost of the S-AFC for fuel management and you can add onto it when you are ready and able ($$$) to tune you car more. If the JWT is $600, that's getting 'bent over' (IMO). That's twice the price of modding a DSM ecu and it probably doesn't come with a studderbox.
for the emanage, I think the MAP sensor that is optional is only used for the ECU to detect boost pressure and reference the timing off the boost. AFAIK you still have to retain some sort of metering device (mafs) beyond the greddy MAP.But from what I've read you should be able to tune the Emanage to do pretty much what the JWT ecu does, if not better, since you can adjust for injectors, air meter, timing, adjust timing off boost, etc.
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Project DC2
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andrave wrote:for the emanage, I think the MAP sensor that is optional is only used for the ECU to detect boost pressure and reference the timing off the boost. AFAIK you still have to retain some sort of metering device (mafs) beyond the greddy MAP.But from what I've read you should be able to tune the Emanage to do pretty much what the JWT ecu does, if not better, since you can adjust for injectors, air meter, timing, adjust timing off boost, etc.
i've heard gfood and bad things about the emanage, mostly in the honda crowd everyone is runnin to hondata which is pretty much a standalone, adjustable fuel curves and timing etcc...
however how many poeple haev ACTUally used this sysytem on their boosted Ka24DE's is what im wondering. im tryin to learn more about what to do in terms of fuel management for a future 240 turbo KA motor im about to do ( im gonna make the manifold/ downpipe. a 3 inch n1 style exhaust, charge pipes, etcc)
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C-Kwik
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andrave wrote:for the emanage, I think the MAP sensor that is optional is only used for the ECU to detect boost pressure and reference the timing off the boost. AFAIK you still have to retain some sort of metering device (mafs) beyond the greddy MAP.But from what I've read you should be able to tune the Emanage to do pretty much what the JWT ecu does, if not better, since you can adjust for injectors, air meter, timing, adjust timing off boost, etc.
The MAP sensor is actually designed to be used when the MAF is maxed out. Typically you set the E-Manage to stop using the MAF signal and you revert to the pressure sensor signal to read further airflow. Timing adjustments are made based on airflow and RPM. The boost pressure sensor is not needed to make timing adjustments.
now see, I talked to a guy that was using E manage and he told me that he could adjust his timing but if he wanted to adjust it based off boost he would have to buy the pressure sensor and harness.
who f'in knows, it seems like every day someone says something different about e manage. Hopefully I'll have my own unit here in a couple months and I can figure it out myself.
who f'in knows, it seems like every day someone says something different about e manage. Hopefully I'll have my own unit here in a couple months and I can figure it out myself.
Does NOBODY know that the JWT ecu's are only 500 bucks from http://www.heavythrottle.com or http://www.jgycustoms.com ?? I've said it enough times, thast for sure!
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Project DC2
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Nathan wrote:Does NOBODY know that the JWT ecu's are only 500 bucks from http://www.heavythrottle.com or http://www.jgycustoms.com ?? I've said it enough times, thast for sure!
so i take you you have first hand experience witht he greddy e-manage ?? thats what im really lookin for .. cuz i mean everyohne knows about it but some peopel who've used it did not like it.
No I dont DC2, I also believe you'll need more than JUST the E-Manage to have full adjustability of it which means more $. Also, you don't need something to tune the JWT ecu, it's pretty decent as it comes and only benefit's a little in some circumstances by being further tunedith an afc or e-manage. Oh, and Andrave...that was just dumb, some people dont want to waste the time playing with settings on a laptop to tune their car. Besides, I dont HAVE a laptop, which would mean I would have to buy one just for my damn car. My car is cool and all, but it doesn't deserve a laptop that I wouldn't use for any other purpose (I HATE laptops). Hence, the JWT ecu is MUCH cheaper than an e-manage and laptop for me.
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Project DC2
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Nathan wrote:No I dont DC2, I also believe you'll need more than JUST the E-Manage to have full adjustability of it which means more $. Also, you don't need something to tune the JWT ecu, it's pretty decent as it comes and only benefit's a little in some circumstances by being further tunedith an afc or e-manage. Oh, and Andrave...that was just dumb, some people dont want to waste the time playing with settings on a laptop to tune their car. Besides, I dont HAVE a laptop, which would mean I would have to buy one just for my damn car. My car is cool and all, but it doesn't deserve a laptop that I wouldn't use for any other purpose (I HATE laptops). Hence, the JWT ecu is MUCH cheaper than an e-manage and laptop for me.
yeah the ignition harness and boost sensor and harness .. which runs aroudn 590$
only thing so far i hear about JWT is the long long long wait time ???
The wait time is currently 4-6 weeks.dude shop around you get get a fully loaded emanage for 450 bucks.and why do all these people keep whining about not having laptops? first off you can just get the damn boost controller, which controls the unit anyway, or you could BORROW a laptop, or you could just plug it into your desktop.
and, I don't appreciate being called dumb. I would call someone dumb when they don't know the first thing about their cars or how to tune them but think they should have a big old snail sitting under their hood. I maintain that if you can't handle tuning and playing around with your own settings you have no business doing something as drastic as turbocharging your motor.
and, I don't appreciate being called dumb. I would call someone dumb when they don't know the first thing about their cars or how to tune them but think they should have a big old snail sitting under their hood. I maintain that if you can't handle tuning and playing around with your own settings you have no business doing something as drastic as turbocharging your motor.
I dont have a single friend who has a laptop so screw that. I could probably get the car running decently with a standalone myself with a wideband 02 but it would take a while and the risk just isn't worth it in comparison to the miniscule gains that I could get tuning it on an e-manage vs. a plug in and go jwt ecu. Lets say you get the E-manage and want to run a decent amount of boost, you WILL want at least some dyno runs or a wideband 02 setup in your car. When you consider the cost to not only buy the e-manage tricked out, then install everything, then tune it it's just plain a pain in the ***. I'm just going to agree to disagree with you on this one because I think your being an ***. Would you tell Dennis at Unstable that he has "no business" turbocharging his motor? Marc at IAP? Mike on Freshalloy with 504hp? There are many more examples...just because you want something simple doesn't mean you are an idiot and dont have any business turbocharging a motor.
andrave: although I agree with your point of view, just because someone doesn't have the knowledhe to turbo a car by themselves, or even just tune it, doesn't mean they shouldn't go out and buy a turbo kit and have it installed by a pro. I feel much better with myself by knowing that I know exactly what has been done to my car and I feel I'll do a good job tuning it when time comes... but other people see it otherwise.
Just as an example... you either own a computer or use one to post. Do you know how the electronics of it work? Do you know how to setup windows? Do you know how to program in C++? Just because someone doesn't know how something works doesn't mean they shouldn't use it.
Just as an example... you either own a computer or use one to post. Do you know how the electronics of it work? Do you know how to setup windows? Do you know how to program in C++? Just because someone doesn't know how something works doesn't mean they shouldn't use it.
I'd just like to throw in that about the most I can do with my computer is surf the internet and use your average program and games. The rest of it is the devil 
Some people just have no electronic skills but DO have mechanical skills. I'm rebuilding the engine from the shortblock up, putting it back in the car, doing the full install all myself but I have absolutely NO desire to mess around with some stupid electronic gadget that'll probably break when I look at it anyway.
Some people just have no electronic skills but DO have mechanical skills. I'm rebuilding the engine from the shortblock up, putting it back in the car, doing the full install all myself but I have absolutely NO desire to mess around with some stupid electronic gadget that'll probably break when I look at it anyway.erm, keep reading.If you want the most out of the JWT setup, JWT recommends that you have them dyno tune your car. And if you do, it makes significantly more power.So how is going with E manage any different? The only difference is with emanage I can make the changes myself instead of having to go to whereever the hell jim wolf is and paying him to do it.I just do not see any advantage to the overpriced JWT shizzle.