my buddy basically has all the parts for a b series turbo i can get off of him for dirt cheap. how would you tune a auto ls turbo? is there a certain ECU i can buy? how about a fmu??

 

last one i could remember....
https://honda-tech.com/forums/honda-minivans-crossovers-trucks-80/1998-cr-v-vtec-turbo-awd-auto-dyno-video-2508694/

 

Yeah it's hard to turn the autos. That was my first plan to boost my auto, but I said screw that, and bought a standard one.

 

No good options. Only ones are things like vafc's, emanage, aem fic and such. I'm trying to talk myself into piggy backing an obd1 ecu on top of the obd2 ecu. Run a second map sensor that only sees vac for the obd2 ecu and let the obd1 ecu see boost then tune it properly with Neptune most likely...... Unless I'm feeling cheap then it's Crome.

 

we did an auto b16 not boosted but on 2 ecu.... basically, one ecu is for the engine(obd1) and the
other ecu is for the rest of the sensors.... transmission,etc.
the reason for this is that the owner wants a more power in her auto civic but dont know how to
drive a standard one....

if you have a good electrician that could mess around the wirings then your good! i was thinking
of doing the same inb my V sa i could pass this freaking state inspection-free/legally! LOL!

 

Yea, I'm thinking about picking up 2 ecu conversion harnesses and wiring them together to run both ecus but not touch the factory wiring. Then it can all go back to stock if need be

 

i wasn't looking for crazy power out of this, plan on running it really light just looking for that little extra power the crv feels like its missing. i heard i can just use a Vortech FMU Dependent Fuel Regulator. is thatt true?

 

That's a terrible idea. They increase fuel pressure as boost pressure raises, but it's not even close to proper fueling

 

okay. how would i run the stock ecu and a obd1 ecu together then? so the stock ecu controls all trans and sensors, and the obd1 controls the engine? does anyone have a wiring diagram for that?

 

You won't find a diagram to do that. It hasn't been done much. You will need obd2 and obd1 ecu pin outs and knowledge of what ecus need to be happy. I'm considering doing it myself but I'm not sure if I'm going to, but if I do it won't be any time soon. I'm sure I can, I do a lot of Neptune, hondata, and Crome tuning, just haven't decided yet

 

yea ide have to set the wiring up then take it to my local shop.
what needs to wired to my stock ecu and what needs to be wired to the obd1? and what obd1 ecu would you recommend?

 

this is the kind of **** i want to read/follow

 

Any obd1 civic or Integra ecu will work fine.

The short and simple is one map sensor for each ecu, then have both ecus monitor coolant temp, crank/cam position, tps, iat, and o2. You will need something like maybe an led light to connect to the injector wires so the obd2 ecu thinks it's pulsing injectors but in reality the obd1 ecu is handling that along with plug firing and iacv. I guess you'd also need an led for the obd2 iacv or just a second one that's wired up but not mounted to the engine so the obd2 ecu doesn't throw a code.

I'm just rambling based on what I know of the 2 ecus. Having not done it yet there will be a few hurdles that I can't think of till I come across them.

 

I think it would be an interesting setup to run to OEM ecus in this manner. What about though if you could get an obd2 auto ecu and copy certain parts of the tune say the transmission data and then flash and retune the engine parameters and add the transmission data to it? I am not a tuner, I am an engine and body man.

Chris

 

There are no options for making any tune changes to Honda obd2 ecus. Not des tribute based anyway. There are options for the K series. I have kicked around the idea of using coil packs and running a K ecu on a B series. As a tuner and someone that has done a good bit of engine management adapting it should be doable. Nothing comes to mind that would be horribly difficult. I'd imagine the crank trigger on the b20 and k20 have the same number of teeth, then you'd have to make a trigger wheel for the cam. I'm not overly familiar with the K engines though, there could be something I'm missing.

 

I am not familiar with them at all, but I do know that AEM does make a conversion kit for the B series to run as a coil on plug setup.

Chris

 

The outcome is the same, but they use a very different approach compared to Honda.

 

I didn't look too hard at them, I just noticed them one day on eBay and thought about it for a second.

Chris

 

so lets say i decide to do the lsvtec or maybe even boost. if i run 2 ecu's im not gonna be able to pass emissions right??

 

If your tune is good you should pass. The obd2 ecu will still provide info to the obd2 port for scanning.

As long as you don't have to deal with an issue of them seeing the turbo in there.

 

I boosted an auto cr-v with a b20 in it and it was fine. I used aem infinity to tune it. it was fun when I had it. but the biggest things about boosting it was there is no such thing as a good auto Honda trans they all are very weak. I do no that dss "driver shaft shop" does make some stuff for them but not much.

 

Level 10 makes a bullet proof kit for the CRV auto trans as well as a direct replacement trans that is as they call bullet proof as well.

Chris