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post #16 of 23 Old 10-28-2012, 07:48 PM
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Isnt jwt one of those "off the shelf" tunes? Wouldn't it be better to customize your tune for your car specifically than to buy a generic tune? Correct me if im wrong


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post #17 of 23 Old 10-28-2012, 07:52 PM
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They gave me a map based on my setup and it runs great. I was dyno tuned by emance but it was choppy and i blew a motor with the tune

KA24DE-T
"The T stands for turbo, which translates to "im boosted bitches"

1991 - 240sx KA24DE-T 308whp 296wtq @ 12lbs
2000 - Altima KA24DE-T 372whp 338wtq @ 16lbs on e85
2001 - Altima STOCK Daily
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post #18 of 23 Old 10-28-2012, 09:33 PM
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jwt is a good safe tune it is very conservative so you wont make great numbers with it



Altima-KA24DET(has a new heart)
99 Civic Hatchback h22a-t
00 Civic SI
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post #19 of 23 Old 10-29-2012, 03:35 AM
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Originally Posted by rey_boricua View Post
jwt is a good safe tune it is very conservative so you wont make great numbers with it
Much better then good, and because it's so good the numbers are good.
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post #20 of 23 Old 11-11-2012, 06:03 PM
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Much better then good, and because it's so good the numbers are good.
i have it on my car is to me its ok, looking into nistune next



Altima-KA24DET(has a new heart)
99 Civic Hatchback h22a-t
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post #21 of 23 Old 02-19-2013, 02:22 PM
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Hey guys, figured I'd lurk a little/post a little today


I know it's an old thread, but for the sake of the thread, when JWT mentions they have a 'hard tune' it means that their ECU setups are not reprogrammable directly using their setup. So you tell them the injectors and MAF you're using and they send you an ECU setup to your needs.

Surely you can download that data and manipulate it in a Nistune or similar, but if you're smart enough to do that, you're smart enough to tune your car as it is.


With that all considered JWT tunes may be safe, but they are turn key reliable and work all the time. I ran my JWT ECU in the Altima forever, no issues. Run one in my 240 and it's a 400whp track/street car. No complaints, no worries ever. Great product!

97 240 - SR Power - 400whp

365th EN - OIF 3+4

Turbo Altima
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post #22 of 23 Old 02-19-2013, 10:15 PM
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What are the advantages of using a cobra maf using an aem fic- is it easier to'trick' the ecu

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post #23 of 23 Old 02-27-2013, 08:05 AM
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my (limited) understanding of the ecu says that basically depending on rpm(tps) and flow(as read by your maf) it translates the rpm/0-5v readings it receives from the maf sensor into injector pulsewidth durations. The more flow-the higher the voltage- the more fuel is used. Now I understand it gets much more complicated than that but if all the maf does is send a voltage reading to the ecu in non linear increments that helps dictate how much fuel is added/trimmed what difference does it make adding a 80-90mm maf if the voltage is going to be read the same....Does the sensor sensitivity differ or voltage increments change as the 'mafs' piping get larger? or is this mod like the throttle body spacer, grounding kit, or 300zx fuel filter, that I've seen a few people use that does absolutely nothing.

My turbo application is bottom mount and the maf is 12ish inches away from the turbo... I can't imagine a few mm's making any difference in hp/tq numbers if the sensor is the same.....Thanks for reading let me know what ya think

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