Smart injection

[Richard L]

Can you tell what debris caused the blockage? I am very interested.

We are quite lucky to own a range of CNC machines, it looks after most of the tolerance problems from out sourcing the components.

Depending on what debris caused the blockage, we can use different cleaning agents.

You will enjoy a great deal more if you have some knowledge of how the system works. Relays should arrive today. I put a anti-surge diode on one and see it helps with the contact erosion due to arching.

Internal water injection uses five times less water and 10x more effective. I would also like to see you towing a 15-foot caravan up a hill. That will a much treasured picture.

[Kapt. Q]

lol,

Yes it all arrived, check valve fully operational and diode relay in operation, thank you very much for it all. Surge seems to be very little now, 1 barish at most on occasion. I also trimmed all lines to the minimum required.

I think the obstruction was caused by the lack of the O ring, allowing the pre turbo injector to pull oil and crud from the bottom of the intercooler where the post IC jet is.(crankcase venting prior to turbo, I have a catch can on my desk to stop this). It is also possible that it was polishing mop fibers from the tank that are probably small enough to pass filters end on, as they might be when in a flowing stream (like an eel ). I think it is most likely that I caused these issues, not your manufacturing!

Your injector calculations seem to be spot on, I replaced post IC jet with the 90cc (instead of the 120cc) by way of experiment (I must be getting confident, lol), and the MAT went up by at least 6-8 degrees on a hard pull! Needless to say I have returned to the 120cc jet. It will be interesting to see what uping the methanol concerntration a little will do after tuning.

I have gone through about 45 liters of mix so far! Definitely going for 205 liters of meth next time!

I'm really feeling ready for the tuning now and feel that I know the system enough to have a good idea when it is working correctly and what might be wrong if it isn't, the problems experienced being more valuable learning than if I'd got it right first time.

Cheers!

[Richard L]

These are great progress information on tap. Thank you for the update.

It is good to know you can gather quite a bit of information from looking at the moving flow display.

45 litres of mix later, you have really know the system well. Every little detail matters on a delivery system. The absence of an o-ring is a fine example.

You could be correct about the oil contamination to the thin spiral grooves [edited] on the insert inside the jet. Coming out of the deep end winning is the best way to learn.

[Richard L]

I am confident that we can go forward with some confidence tuning the car. All little problem bits has been resolved.

May be a few more drinks for the poor engine before taking it to be brain washed.

[Dust]

Can you post links to your smart forum thread(s)?

[Kapt. Q]

Hi Dust,

Here's the link, I posted on the 'onsmart' forum too but got almost no response, it's just a bit far out of mainstream for most, sad really because it really is made for it. But I doubt I'd believe the results even before tuning unless I'd experienced them either. I'm looking forward to posting the dyno results when the tunings done, HP figures should generate a bit more intrest than theory, sadly.

http://www.smartmaniacs.co.uk/showth...mart-Alcoholic

Cheers!

[Dust]

Thanks, not much going on even in that thread.

Richard, how will the FAV cope with being used this much? Reading the install manuals, it says not to activate the FAV for more than 60 seconds.

[Richard L]

The instruction was referring to the initial priming procedure. It warns user not to run the FAV in static mode for over 1 minute because there might not be any fluid going through the valve to conduct the heat away. Once primed, this doesn't applied anymore.

[Kapt. Q]

Hi Richard,

Do you think that now is a good time to experiment with a third jet? (post IC). perhaps the 70cc one, or two 70s or a 70+90? possible combinations are 140cc, 160cc, 190cc, 210cc, I am currently using the 120cc.

The relays are going out to you tomorrow, sorry for the delay.

Cheers!

[Richard L]

I think you can push the envelope until the engine bogs down. If spark is not flying, you need to increase meth ratio. But you are already quiet rich. It is a difficult decision to tune first or more experiment more now.

No harm in push the same 50/50 and see where the limits are. Don't forget make a plan on paper or you won't have have any meaningful chart in the end.