Oakland fd

I was just woundering what the options for stand alone on a three rotor are. I am I wrong or is only system that can run both ignition and fuel was Electromotive. I have seen someone runing Haltech but with the racing beat distributor. Please I know how expensive a 20b conversion can be just woundering if anyone has any info on some of the details.

HWO

Haltech E6K, MoTeC, Autronic and LINK can all run a 3 rotor happily

ZoomZoom

iTrader: (2)

Haltec cant run anything larger than a 6 cyl. Of course you can try and use 2 of them seeing the 3 rotor is set up like a 12 cyl. But think of tuning 2 of them. Originally PFS 3 rotor was tuned with 2 Tec II's .. I dont remember whos idea it was but it sucked. They went to the TEC I and it worked out fine. Dont ever try to use 2 stand alones on one engine. You will never get it right. Motec would be a decent choice. Also the Electromotive Tec I. I dont know anything about the Links or autotronic. I have seen a few 20B's with Tec I's and they ran just fine.

HWO

dunno where you dig up your bolloux from but an E6K can run anything from a single rotor to a V12 and anything in between.

Go to http://www.hitman.hm

well blow me dead, matt is running his 3 rotor with a SINGLE E6 series ECU............................................... .........

Oakland fd

Thanks for the info on the Hitman site. Ive got to e-mail him and ask how he's running haltech. On the haltech site it says 1-2 rotor and 1-12 cylinders. Same with the autotronic ignition setup. The link seems nice but Ive heard nothing but horror stories with support. As for Motec I think it deserves the reputation it has,but its just too damn expensive. What is autronic? were can I find info on it?

FEARED7

1 wolf 3d will run it.

rxman720b

The only stand alone ECU that will run a 20B CORRECTLY is a MicroTech MTX-12. It is the only one with output to fire the sparkplugs sequentially. With any other unit to include the Haltec E6K you have to run an addition ignition unit like the IG-5. The wolf 3d won't either. There is a reason they all say 1-2 rotors. Some provide a map that will run a 20B with one unit but, it will fire the plugs simultaniously! NOT GOOD FOR THE MOTOR!!
Just my .02 I have the Microtech MTX-12 running the 20B in my 93 RX-7, and it runs very smoothly, correctly!

Oakland fd

Thanks for the info. I saw the microtech system advertised on the Dalton Automotive site out of Australia. Are you perhaps the owner of the shop in San Antonio that does three rotor conversions or maybe a customer? I'm going to be in San Antonio area from Christmas to New Years. Do you think it might be possible to get a look at your car or the shop. Any help would be a appreciated

DELTA_Rotary

Not to be an *** but if a Motec is too expensive for you the 30,000 for the 20B conversion might be out of the question.

Oakland fd

Yes that would fall under being an ***. Yes I know how expensive it can be..$35,000 for pettit to do their banzai conversion. Look I'm not some sixteen year old kid dreaming about this. Motec is 4-5,000 just to get started and thats for thier m4pro. I don't even want to think about about what system I'd need to run a three rotor. I'm not trying to win Le Mans or take down Abel. I'm trying to see if this can be done for 15,000 to 20,000. Thats not gonna happen spending seven grand on a god damn ecu alone. If it cost 30,000 I can aford it thanks

HWO

if your definition of "correctly" is to be able to have split trailing timing, then you should go back to rotorschool, the only thing you need spilt trailing timing for is emissions, otherwise firing both plugs at the same time yeild MORE POWER than firing the trailing plug retarded from the leading plug.

Styk33

On a 20b with an E6K you lose the trailing timing adjustment which is used for economy and emissions. You will make more power without having advance (or is it retard) on the trailing.

I don't know why you would use two complete ECUs, when you could just use an igntion controller to control the trailing plugs if you really wanted to. Even if you wanted to as long as you setup both to not try and control the same thing it should be fairly simple.

DELTA_Rotary

Chill out man i said i didnt want to offend you. Its just there are a ton a guys that come on here with 5 posts and start talking about how they are going to do a 3-rotor conversion and don't realize how much its going to cost. When you said the Motec was too expensive it just made me think you had no idea what you were getting into thats all.

P.S. If you wanna keep the cost under 30 go talk to KDR I talked to him about through some emails and he said he could keep it under 30 depending on the what parts you used. This is all assuming you are having someone build it for you so don't jump down my throat on how your gonna build it yourself, which would obviously save you money but add to headache.

Oakland fd

It hit a nerve because I had already said that I knew how much it cost to do something like this in my first post. Sorry, I over reacted. I'll call kdr and talk to them thanks for the advice. I don't want to build it myself, but I don't want to go accross the country to have it done either. I'm not sure if its something I want to do yet. I'm just trying to get as much info as I can to make a decision.

Dyre

Like Styk and HWO said, you can run a 20b with most standalones if you drop the split timming setup- So if your going for cheapest route- the Haltech or Wolf is the way to go.