Re: WMI tuning and results Part 2
 

The plug on that cylinder told a different story. Nah in all honesty it was lean or hot at least. When it did it you could actually hear it pinging also. My stuff always do wierd things lol. I'll update after a while to see if it survives with the richer tune.

Re: WMI tuning and results Part 2
 

G’day guys,

Thought we’d post a quick update to cover off on all the changes we have made over the past few months. We have now upgraded to gen 2 Garrett gtx3071r, Bosch motorsport 1550cc fuel injectors and an in tank Walbro 460 fuel pump. We also made the switch back to direct port water meth injection, using 4x0.6mm direct port check valve jets, along with 2x0.5mm post intercooler jets and 1x0.4 pre turbo jet.

On the dyno a few weeks ago, with ambient air temps reaching 36+ degrees, the car made 277kw/371hp @22 psi without water meth injection. With the water meth on (using a 80/20 methanol/water mix), it made 352kw/471hp @ 30psi and 388kw/520hp @ 35psi. At this point, we reached the knock limit of the engine due to maxing out the flow of the water meth system. We will upgrade this system in the near future in a bid to squeeze a little more from this setup.

Cheers

Re: WMI tuning and results Part 2
 

What are you using to validate your 'knock limit'

Re: WMI tuning and results Part 2
 

Awesome results!!

That's mighty big gains! You would def want to go direct port injection pushing it that hard, you must have a rather large Meth tank with that many nozzles.

What Dyno was this on sorry?

How does it feel to drive now with 35psi? spin the wheels much?? lol

Do you track EGT? what is that looking like?

Well done again!

Rob

Re: WMI tuning and results Part 2
 

We are using knock ears and knock link.

Re: WMI tuning and results Part 2
 

This was on a chassis dyno.

Only driven it on 30psi (352kw) so far. Its actually quite scary to drive. The acceleration is quite brutal, even with traction issues. It broke traction in third gear at 140km!

EGTs were showing a max of 890 degrees C. We see the same EGTs at 21 psi without water meth injection as we do at 35psi with water meth injection.

Re: WMI tuning and results Part 2
 

Go to the Sydney roll drags this Friday night and watch a Datsun (R32) with V6 twin turbo running RWD over 900hp and my traction control set up, only way to do this and its easy to drive, turns scary into fast and easy dare I say it.

I have an R34 GTR customer just finished up now where we are at the limit of an EFR9180 turbocharger (spinning it too fast) it constantly sits on the knock limit (Syvecs ECU) and utilizing all of the power of WM50 with correct fuel mixture allowed by M&W CDI only.

Once you get a handle on some professional electronics and correct ignition you will see what seemed like a limit now is a base line performance level when you and your people involved build some more experience.

Re: WMI tuning and results Part 2
 

theboostshack, making some good power now :), did you try different mixtures of water/meth like 50/50 etc. Ive tried everything from 10%meth to 60% and made little difference to the knock limit ( reading the plugs ). Whats your fuel flow total and water/meth total? About the same amount of ignition from 21psi to 35psi? Cheers

Re: WMI tuning and results Part 2
 

Peter,
it is a fair share of power from 1800cc inline 4 in a Datsun 1600 car.

I'd up the water content to 50% by mass at these boost levels.
The higher the boost the better water works.
The direct port injection gets around the distribution issues with the normal central injection.
Methanol will work in big droplets or stream, water not. Water needs the proper distribution to work.
50:50 by weight will likely allow higher boost with the same total mix flow compared to 80:20.

If you get misfires from more water content, you need a better ignition set-up such as a CDI system that Peter aka Riceracing has developed as he was pushing the limits of his rotary engine.
It is established for a long time now, that given you properly inject enough 50:50 mix and your mechanical system and ignition copes, you can run truely silly boost levels.

Re: WMI tuning and results Part 2
 

Thanks Peter. We're still just scratching the surface with water meth injection and have a lot more testing and upgrades planned for the near future. We have had some good fortune after being called on to assist some of Richard's Australian customers. We have been providing assistance with the system selection and procurement, facilitating installation and set up, and assisting with the tuning of Aquamist systems. This year, we plan on building on what we have learnt so far and expand on the service we currently provide to existing and potential Aquamist customers here in Australia.
Cheers.