KA24DE with sr20 injectors, 300zx maf, ecu chip what you think??

[D-UNIT]

You will be impressed!!!! ( i hope) *kicks can* haha.

[-RJ-]

ugh i wanna just get the tune chip and plug everything in lol. Though i dunno how good it will be without the wideband

[Bigvinnie]

NGK makes an affordable wideband.

[-RJ-]

someone is selling a LC1 for 100. Thinking about picking that up on pay day

[vmiramon69]

im gonna save this page and DOOOO IT!

[-RJ-]

Im ordering the chip tomorrow my girlfriend is buying the wideband for me. ha awesome

[jbracy7]

Just to clarify relative HP to rev range.

A bolt on turbo KA will make 180whp MAX with the stock maf and 270cc injectors. The problem is that peak power won't exceed 6000RPM boosted

dawm thats what happen to my car

[jbracy7]

Just to clarify relative HP to rev range.

A bolt on turbo KA will make 180whp MAX with the stock maf and 270cc injectors. The problem is that peak power won't exceed 6000RPM boosted

dawm thats what happen to my car

[Bigvinnie]

Im ordering the chip tomorrow my girlfriend is buying the wideband for me. ha awesome

NICE!!!!! Chip or daughter board?

[-RJ-]

chip, dont tell me i needed the daughter board

[Bigvinnie]

chip, dont tell me i needed the daughter board

Chips are for SOHCSDaughterboards and emulators are for DOHCS

You can get single chip and dual chip daughterboards for Dohcs.

According to Nissan eccs forums you would need a daughter board with a 40 pin header chip (20X2)http://eccs.hybridka.com/viewtopic.php?f=2&t=29

Sr20det and KA24de s13 ecu daughter board configuration is the same. I've always prefered that people go with PLMS or Nistune. This is what a 40 pin header looks like. from the PLMS web site. you can read the PLMS FAQ page that is listed so you know.

http://www.plmsdevelopments.co...shtml

Basically for the dohc s13's you need the daughterboard after crossing jumpers on the ecu, the jumper basically switches the chipset the ecu see's so instead of seeing the factory MAPS it jumps over to the daughter board to get its MAPS.
Modified by Bigvinnie at 11:47 AM 2/21/2010

[-RJ-]

http://cgi.ebay.com/ebaymotors...Tools

i got this

[Bigvinnie]

http://cgi.ebay.com/ebaymotors...Tools

i got this

I don't know what you bought? Description is extremely vague to say the least. If its a 40pin header chip it still needs a daughter board.

[-RJ-]

http://shop.ebay.com/merchant/...fromZ

heres it, it doesnt say anything about a daughter board though. Im a little confused now.

[Bigvinnie]

http://shop.ebay.com/merchant/...fromZ

heres it, it doesnt say anything about a daughter board though. Im a little confused now.

If any of these ebay sellers told you you would need a daughter board and realized your total net cost would be $80 for chip daughter board and then another $20 for someone to solder the board in place you probably wouldn't buy it. It cost about $100 to get the entire set up, not just the chip. This is why I advise for nistune, or PLMS daughter board chip sets. this is common knowledge in the eccs community.

This is a pic of an enthalapy ecu, you can clearly see the daughter board and chipsets ride the top of the ecu as an add on after the jumper has been reconfigured.

[-RJ-]

Hmm, alright. I'll just have to order the daughter board. Soldering isn't an issue for me, I'm pretty good at that.

[Bigvinnie]

If you solder it yourself please read the PLMS faq and visit the eccs forums to make sure you solder the correct jumper.

[-RJ-]

yeah, im gonna start going there and reading up on that stuff. never knew about that site before

[-RJ-]

My wideband came in finally! Im gonna install it once its nice out. Has anyone noticed a difference with just that installed? I still need to get that daughterboard then my stuff is complete

[-RJ-]

I cannot stress this enough INVEST IN A WIDE BAND your ecu will love it. Just feed it the analog signal generator and your KA should do things you wouldn't imagine it could do.

When you say feed it to the analog signal, do you mean connect the white wire to the plug that connects to the stock o2 sensor? I have aem uego btw

[D-UNIT]

That is exactly it. You can even jump it straight to the ecu. make sure you connect the 0.1-1.0v output you could fry the ecu if u connect the 5v output.

[-RJ-]

alright i got everyting in. MAF is wired up, injectors are in, daughter board and chip is in. I ran the car and it ran really rough and smelled rich. Any insight on this? I followed the maf write up in jwt site

edit

I put in new injector seals and the car will start but it still runs rough. i unplugged the injectors one by one and noticed that two of them did no change to the motor... so i think the injectors i got are faulty

edit edit

replaced the 2 injectors, the car runs a tad bit better but it still idles really rough and stalls if i dont hold the pedal down a bit. If i rev it up it feels very hesitant and white smoke comes from the back, but it doesnt smell like coolant. Im still trying to figure everything out. If anyone has some advice please share

[-RJ-]

I got everything fixed. The car feels so much better now and is much more responsive

[D-UNIT]

what did you find wrong with it?

[-RJ-]

My brother who soldered it in used too much solder and fried the daughterboard. So I sent the ECU to Jason and he got everything fixed for me

[Bigvinnie]

Do you think there is the possibility of seeing a dyno run of this in the future? It would be good to see if Jasons tunes are worth considering for this set up.

[-RJ-]

I do plan on getting it on a dyno once i get the money and time

[kungPOWadobo]

yeah this would be a good set up if you were going KA-T but it amazes me how much more power you guys get out of these KAs without turbo with just the maf and injector set up.

[Bigvinnie]

yeah this would be a good set up if you were going KA-T but it amazes me how much more power you guys get out of these KAs without turbo with just the maf and injector set up.

MAF's inherently change the load value of the engine, and as well increase volumetric efficiency (VE) on on a scale of CFM, it how ever takes fine tuning of an ecu or piggy back to calibrate the new CFM rates to the hot wire voltage settings, since a larger diameter MAF will have less air velocity at lower RPMS, this is what changes the load value, and timing to the ecu. Its the same principles why people that do boost do it as well. Imagine the stock G60 and G70 mafs as restriction plates, lack of diameter allows less atmospheric pressure into the engine. Hence why a larger MAF benefits the KA and allows for 100% VE. G60 MAF is rated at 89% VE since it is smaller than the 60mm TB that comes standard on the KA. The stock G70 MAF is rated for 97% VE. Since the N60 and N62 MAFS are larger in diameter than the 60mm TB the engine should be performing at 100% VE in theory, it then becomes a matter of fine tuning and possibly boring, extruding, and honing the cylinder head to allow the 100% VE theory to be correct.

[D-UNIT]

*update* all my problems above were not caused by a faulty wide band. I'm an idiota. I had a faulty wire harness. when I plug in the o2 sensor my tps voltage goes to 0.00v! I then thought it was the computer but yesterday on the scantool i hooked up the stock ecu and voila same codes , same problem. so now i need a new harness. Anyone?