Full engine management

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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Okay, here's a project in the works. My friend has ALL the software and ALL the equipment to burn and write maps for the ECU. We have been doing TONS of research and have come to the conclusion that full engine management using a daughter board and chips is possible.

Here's the question though. Would any of you be interested in this? It would be hundreds less than JWT to do the same thing. And my friend has been doing this for Hondas, Toyotas, etc. He knows what he's doing. The problem is we have no way of fabricating a daughter board so we're going to be ordering them from Badbiki (sp?) and then using chips that my friend has, writing our own maps.

Here's where you guys come in. If we buy in bulk the daughter boards will be cheaper than buying them one by one. So how many of you are interested in this little venture?

We're going to test this out on my SR20DET Red-top first before we start doing anyone elses. That way if we blow up my car we'll know that it didn't work. =)


Arrow
Posts: 624
Joined: Thu Apr 22, 2004 3:28 pm
Car: 1990 240SX SE - SOLD
2003 Kawasaki Ninja 250R - SOLD
2009 Kawasaki Ninja 650R - corner carver
1998 Pathfinder
Location: Raleigh, NC

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You've gotten my attention.... I might be interested if you might be able to give me a little more info. Mostly persay once you test it on yours... Such as your fuel economy: better, worse, etc... And possibly any gains in power or torque. And also the predicted cost; either bought in bulk or one by one....

BTW Are you planning on doing this with the KA24E models aswell?? And what are the maps that you are planning to program? Any way for 'us' to reprogram some (persay to meet our mods and desires) or are you guys writing a semi 'smart' program that could take into account larger injectors, turbo, and the like?? Or will you write maps to fit each car? Just some questions....

I know that is probably asking a lot but I want to know what I am getting into before I do anything.

[Zero-S]
Posts: 5295
Joined: Wed Apr 16, 2003 10:56 am
Car: Tell me whats wrong with this picture. 3 240's, only one runs.

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S13 and S14 ka. And I want to know how he did it because I've been in the market to do something like this for a while (for myself only...)

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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What we plan on doing is throwing a pre-programmed daughter board into the ECU with a specific map for just about every possible situation. High boost, low boost, highway cruising, stop and go traffic, and see what we can do about running rich with the bov running to the atmosphere.

It's going to be a bit before I can get any hard information on it. We're still doing research on the ECU because I don't have $2500 to blow on another SR20 in the event that I blow mine up. I'm going to post this in the SR20 forum also. Oh and I have a bunch of KA24E and KA24DE friends so once we get this done on the SR20, we'll work on the KA24 also.

VNTEC
Posts: 3
Joined: Thu Jun 03, 2004 2:35 pm

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Hey This is Sircnay's friend. I have been tuning Honda ECU's for awhile, basically rechipping them. Rechip and tuning is simular but different. Rechipping is generally using someone elses maps perhaps with the same set up (most just buy junk "eBay" chips, or there are chips that are fully programmable to do whatever you want. I have equipment to chip honda ecu's, Me and Chris did research and realized the internal workings of a Nissan ECU are the same as a honda, i have since gotten the software to tune Nissan Ecu's. Custom features include speed limit removal, Custom redline, custom fuel map and igniton map. Exact duplicate of what "Full Standalone" has to offer, all they do is adjust those parameters, which is basically controlling how your motor runs.

However on a Nissan, a daughterboard is required to supplement an external rom (data) However with daughterboards for Nissan's, there are 2 roms, you can switch it from aftermarket back to your stock one with just a switch, just for safe measure if u ever wanted to run your stock map again.

I can be reached via aim at Streetriceror [email protected] Thanks

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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Oh and I forgot. Ballpark number for price would be roughly $200 +/- $50. it all depends really on the bulk of how many we can get done.

Arrow
Posts: 624
Joined: Thu Apr 22, 2004 3:28 pm
Car: 1990 240SX SE - SOLD
2003 Kawasaki Ninja 250R - SOLD
2009 Kawasaki Ninja 650R - corner carver
1998 Pathfinder
Location: Raleigh, NC

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not too bad as far as a price goes! I'm impressed. But will be more impressed when the final product is complete. Now one question: would the daughter board have a map that could be programable or reprogramable by the user?

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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We'll probably just have a free reprogramming service or like $5 charge or something like that.

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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http://www.nissaninfiniticlub....09673

go there, i moved the thread.

WeldingHank
Posts: 559
Joined: Tue Jan 27, 2004 8:07 am
Car: 1989 240sx CA18DET

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would it be possible to just get an ECU with the speed and rev limiter removed? maybe for not so much.

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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Umm... no. All the ECU's have governors. But what we're offering will also include things like injector duty cycles, timing, etc. etc.

BoyWonder
Posts: 864
Joined: Fri Jan 23, 2004 10:51 am
Car: '93 Nissan 240SX S13 Convertible (reclaimed... wootles)
Contact:

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I've said it before, and I'll say it again; sounds good to me to have a cheaper-yet-still effective alternative to JWT.

SilviaS14KA24DE
Posts: 1121
Joined: Sun Mar 14, 2004 11:34 pm
Car: Doriftu

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yes for s13 and 14 KA

WeldingHank
Posts: 559
Joined: Tue Jan 27, 2004 8:07 am
Car: 1989 240sx CA18DET

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but thats all i would want, is the rev/speed limiter removed. thats one thing that JWT does. and thats all i need. as i would be using an E-Manage

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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Heh, If tha'ts all you want then cut the rev sensor on the transmission and wire up a tach somewhere. That'll get rid of the speed governor.

WeldingHank
Posts: 559
Joined: Tue Jan 27, 2004 8:07 am
Car: 1989 240sx CA18DET

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what about the rev limiter?

Sircnay
Posts: 1384
Joined: Mon Jun 23, 2003 11:13 am
Car: EVERYTHING

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Rev limiter is a little bit trickier. There are several ways. But nothing I'm familiar with enough to tell you what to do.

PMan_S13
Posts: 575
Joined: Thu Dec 19, 2002 6:48 am
Car: Building car -> breaking car -> fixing car -> start over

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I know this post has a little age on it, but did this idea ever prosper? Sounds like a sweet way to do engine management..


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