Thread: SR20 running on KMS

Hey guys! (yeah I’m from Holland so my English isn’t the best )

As some of you might have read, I’m taking my internship at KMS and I’ve had an interesting offer. So if everything will go as planned I’ll be running my SR20 Highport on KMS (hopefully a MD35 ECU) in a couple of weeks!

Here’s the specs on the MD35 (the info in the start thread of the comparison thread is about the older mp25).
KMS Management Systems

So it’s a complete standalone ECU which that takes care of the ignition and injection, the latter via a self learning lambda control. Not many manufacturers have this option fully working, KMS does!

I will probably make a new triggerwheel on the crankshaft pulley, which will probably be easier than getting the distributor signal working on KMS. The distributor is going to be discarded anyway, cause I will be using a discoil.

The first step is making the wiring loom, which I’ll be doing this week probably! I’m waiting on a wiring loom which I can cut the connectors from because KMS only has VAG connectors in stock. The KMS wiring loom will be in the engine bay together with the stock, so I can switch between systems by simply unplugging the loom!

If someone has any questions, tips/tricks or other useful info I’ll be glad to hear from them!

(btw, I’ve got KMS running on a R13 engine from a RX8 as first project here, wasn’t done before here with a rotary engine!)

Here ParaChris thanks for making your own thread for this.

I've been thinking about that as well, but that'll be the price I have to pay!
I've also been busy with school, so no major updates till now!

I don't think it'll be a huge difference, neither in power or efficiency.. The discoil provides some more power than the stock coil and rotor!

Anyhoo, some pictures (crappy quality FTW!)
Be gentle in the comment, I made everything myself

Wiring loom (not finished);


Testfitting on spare motor;


60-2 triggerwheel;


ECU;


Wideband lambda display;



Hope you guys enjoy the pictures! More will be coming real soon, I hope to get it started on the other management in 2 weeks!

So I have two management systems in car, which I can swith by replugging my injectors, tps and idle control valve, and switching the distributor for the discoil (2 bolts and the spark plug leads)

Looks really good! Is there any page where i can see a price range of their ECUs?

Everything is on their site, worth checking out!

KMS - Engine Management SystemsVan Kronenburg Autosport – KMS | Kronenburg Management Systems

Forgot to post the result;

Stock sr20 highport
JWT S4 cams
2,5 inch toyosports header
Hotshot Intake
MAF delete
XTD flywheel
370CC injectors

190 BHP, 200 NM on KMS

0-100 kph measured with an Apexi RSM, 6.4 seconds

Sounds about right... we did 184HP untuned (basic Calum ECU) with same engine/mods on very low timing. Definately 190+HP setup. What exhaust do you run?

How hard it would be to run set of ITB´s? Im in process of making my own custom set and this ECU sounds interesting... was it easy to get familiar with tuning, etc.?

We do need more info! Thanks

I run a stock exhaust after my 2,5 inch testpipe, room for improvement there

ITB's won't be a problem at all, my setup is with a MAP and air temp sensor so you can fit any intake you want, as long as you have a place for your MAP sensor!

The tuning is real simple, as long as you know the basics of tuning an engine. The software is free, you can download it from their site, to give you an idea!

Ask me whatever you like, and i'll try to answer your questions!

About the timing, it didnt react like most engines do, i run 98 octane fuel and it didnt start knocking, not even at 32 degrees advance. On the other side, i gained about 5 bhp going from 26 26 degrees advnce to 30, so it wasnt necessary to advance the ignition further than 28. Most engines like 2 liter audi and 2 liter opel engines react way better on advancing the timing.. They gain more horsepower than my sr20