SR20 ECU instead of the CA ECU?

[TD or Not TD]

The Local tuner told me that i should use the SR ecu instead of the stock CA18det ecu because it can be tuned easier ect. and he can wire in the car and make it run perfectly. He told me he would have to change the timing and fuel tables a little bit but nothing major.

is this true, because if the CA ecu is easy to work with through people who do custom chips is fine then i might try to wire my car for the CA and not the SR.

All opinions are appreciated!

[fluent]

Yes I have seen wiring adapter kits available which allows an SR ECU to run on a CA18 engine!

Although only reason you'd ever so such a thing is if thats your only option, being the only way your car can be tuned by a half-decent tuner in your area. Else it seems like a lot of trouble to do things.

[driftin8ez]

There is a certain SR ecu i believe out of the S14 SR blacktop that has the same connectors as the ca ecu. All you have to do is repin a few terminals and the harness would match right up. Then you would soldier in a daughter board, and have someone flash a ca18det base tune onto an eprom and bam you have an sr ecu running a ca. Good news full consult support!

[dash]

quite a few successful chipped 250-300hp ca ecu cars here with "mail-order" tune/chip.... what more do u want ?Most impressive street ca18 I've seen on this forum was teamnissans' 500hp. It was managed by an sr20 ecu & did 10k+ miles last I heard. Question is, do you need that 'degree of tuning' for your needs ?Doesn't sound like. I'd keep it simple

[TD or Not TD]

awsome info, is there some tech page on how to change the pinout. i found the ecu on e-bay and a ca18det one on ebay as well and they look exactly alike. the s14 blacktop like you said.

is it hard to wire the car without the connector that goes underneath the dash, assuming for the fuses and gauges ect.

if im thinking right there should be a ground and power when ignition is on ect?

[TD or Not TD]

would it be a fairly straight forward job to wire in the car like i stated above...wire in power and ground into the stock harness. i dont care if the stock gauges work, ill just run aftermarket ones.

either using the SR ecu or CA ecu i dont care, whichever is the easier option.

[progman]

The CA ECU is easiest. I would make sure I knew exactly every little thing that had to be done to put the sr20 ECU in before I did it. I mean detailed information. That will very easily become a pain in the *** and to get you what? If your paying someone to tune your car... Also other tuners might not touch it with that ECU in it.

[driftin8ez]

No write up on the SR ecu swap. Just look at the pin out diagrams for each ecu connector and swap away. Not really that big a deal.

[TD or Not TD]

i would have to get a full CA harness with relay boxes ect correct? would i be able to plug everything into the motor put power where it needs to go on the relay boxes ect and not wire it into my dash and have it work? i would probably need to find out which wires run under the dash for power to the ecu and ground and power for the fans ect?

basically if i have the engine on the floor plug the whole harness in it, use a battery and put power to what needs it and ground as well, obviously fuel ect to the motor and it would fire up. or does the under dash harness have a big part of it starting up?

maybe i am just not making any sence tho.... someone slap me

[mbmbmb23]

I wouldnt use the SR ECU if you are trying to keep your intake butterfly system, because it wont work unless you have another way to trigger the solenoids at the factory preset RPM.

[rotorific]

The only SR ECU I would use is an Apexi Power FC

[TD or Not TD]

i plan on removing the butterflies anyways. so im debating right now on just using the stock CA ecu instead of the SR.

[driftin8ez]

check out the thread in the FAQ about rom tuning the stock ecu. You can do some really powerful things considering the ecu is 80's tech. I was just answering your question you really didn't ask which way would be better. The only real advantage to going with an sr ecu would be the consult support. However there is something called nistune that will allow our boards to consult. Also the dash harness only has signals for the tach, engine temp, speed signal, etc... I'm pretty sure the car would start with that unplugged.

[nissanic89]

The only SR ECU I would use is an Apexi Power FC

i am contemplating that exact thing, was talking to yellow munsin(tem nissan i think about it, it seems like its the best thing to do, but then again its really up to you how far you want to go with your set-up, im lookin for as close to 400 as i can get so i kinda want to go standalone, but only time will tell

[ca18datsun510]

there is a tuner in plattsburgh that does sr's and knows what a ca is?

[TD or Not TD]

no, an hour away north in canada is where the guy is. Robin Almasi. i think im going to get the whole harness and go from there...

[bentvalves]

I can see an advantage to this setup.

power FC D-jetro on a ca18det.

d-jetro is not available for ca18, only sr20.

Greg

[nissanic89]

and they are only 750 shipped with the commander on ebay for the sr power fc

[teddy]

I've got a CA running on an s14 blacktop ecu. Consult and all...

[bentvalves]

and they are only 750 shipped with the commander on ebay for the sr power fc

for the D-Jetro?

thats the MAP based version that allows you to remover the MAF

damn thats cheap, even if its the L-jetro.

[TD or Not TD]

I've got a CA running on an s14 blacktop ecu. Consult and all...

What did you do to get it running?

[nissanic89]

yes do tell

What did you do to get it running?

[nissanic89]

i would be very interested in this whole sr20det s14 ecu running a ca18et thing, let me know, thanks

[nissanic89]

http://www.plxdevices.com/ECUD...4.pdf

i just did a lil research. So the s14 non euro version and ca18det have the exact same pinout. What exactly would have to be changed? i understand a new map would have to be put on the s14 ecu, but is that all?

[TD or Not TD]

Thats what the local guy said Robin almasi. he said he would just have to change timing and fuel maps.

[ser20det]

Thats what the local guy said Robin almasi. he said he would just have to change timing and fuel maps.

Ha! Robin Almasi! This guy have magic hand ! Do you know many guy that can make run a Jun 3.4 stroker kit 300zx with a r33 rb25det ecu ? This man know what he is doing !

[nissanic89]

have to delve into this a lil more somehow, im curious as to if the sr ecu would have any problem controlling any of the sensors on the CA

[PulsarDet]

I am currently setting up a SR20 ecu on a ca18det done by robin it self, but let me tell you, that guy is working ****ing slow, but he must do a good job. I'll give you more info about it. Has long has I know you need a S13 sr20det ecu code 62 or 63, wish is a ecu with coil pack, the s14 ecu not sure if migh work and for the rest is just to rewire a few connector to the ecu.

[TD or Not TD]

is your car the black pulsar that is sitting there? i know he hasnt touched that thing in a long time! i went up twice, probably 3 weeks apart and he didnt do anything to it. i took a quick look at it. he said $350 to make a harness but itll take a month for him to start working on it and a month to complete it because he is so busy. im thinking of offering him more to see if he can get it done sooner....but i want a nice job so i dont know.

[PulsarDet]

I would suggest one thing, if you can find someone else to do the job, go for it, Robin, is ****ing slow to work on car, like mine sit there for about 3 month now and still have job to do, like suspension, brake, and little paint job but the setup is nice do. 650cc injector, 300Z maf, custom lsd, axel and clutch and no if you offer him more $$ he won't do it faster, I can give a word on that, and the main problem with him, is he do work on the car that I like if not you will be waiting long time for him, and I you push to much on him will do a crappy job. It's suck. Has for my setup with the SR20det ecu I'll let you know how to rewire this thing.