As soon as a leak develops in the line post flow sensor or the nozzle line pops off or the nozzle falls off YOU HAVE A BLOWN ENGINE AND THE FLOW SENSOR WILL DO ABSOLUTELY NOTHING>

THIS IS WHY THIS FLOW SENSOR BELONGS IN THE GARBAGE.

 

There won't be a leak post flow sensor, and I made sure of that with titanium conduit reinforced with goop on this 10" section of tubing.

 

Never say never. There wouldn't be a need for a safeguard if systems and lines were bulletproof on their own.

 

Hello All, I will try to answer some of the questions brought up in this thread about the Injection Fail Safe (IFS-10) in the first post.

First off, snow has been slapping their sticker on Labonte MotorSports manufactured controllers since 2002. We designed and manufacture all of snows controllers with the exception of their stage III diesel (which some one else designed for them).

The IFS-10 is a completely new 100% methanol compatible unit. It is designed to output a 12V signal in the event flow ever drops below a setpoint. This could be due to failed pump, clogged nozzle, or low fluid. If a line is ruptured/leaks up stream from the IFS-10, this can result in no flow and it will trigger a fault. If a line ruptures/leaks upstream of the IFS-10 this will be an over flow condition and the unit will trigger a fault.

As seen in Steve's video and data logs the unit is fast responding to faults to ensure engine safety.

The IFS-10 has a 0-5volt output that is proportional to flow. This can be used as an input to a data logger, our Digital flow gauge, or our new VCS3G control system that will be released next week. The output is .1volts per 100ml / min.
The trip point on the IFS-10 is user adjustable so it can work with any nozzle size.

For more information you can find the product data sheet on our website.

Hope this helps and let me know if there are more questions.

Best regards,

Dan

 

I think we need the word downstream in there somewhere.

 

You are correct, my bad, thanks for catching that. Over flow condition would be DOWNSTEAM from IFS-10 if leak in hose between IFS and nozzle or nozzle gets loose.

Best regards,

Dan

 

I wasn't even aware the IFS-10 triggers when flow is beyond a certain volume. About what ml/min would this be?

 

so your saying that your failsafe controller will output a fault signal of 12v when there is no flow (blown pump, clogged nozzle, leak before failsafe sensor) AND when there is overflow condition (leak after failsafe sensor)????????

 

Yes that is correct. I will have to look up in the software to what the over flow value is. Steve gave me the idea when he said his hose came loose from his nozzle and sprayed meth all over his engine bay, not good.

It is a fixed value right now based on open flow from the pump with 1/4 line.

Best regards,

Dan

 

I remember that day, for a moment I was flabbergasted thinking the windshield washer would come on at boost. It was one of those stainless steel locknut compression fittings that the particular company carried at the time. If you still have them - replace them, they were sold up to a year or two ago. Luckily it was before I had a wideband still running pumpgas maps from a flash, but boost was at 25 psi. I'm sure it knocked though - felt aggressive timing retard.

 

Ever sence that episode occurred (1.5 years ago) I have always made an overzealous practice to reinforce that area so the line wont pop off, plus the fittings now are locking and hold much better.

One occasion my coupler to the TB popped off at high boost POW!!! - this is right where the nozzle is mounted. The nozzle was still attached to the charge and the tubing to the nozzle holder and the charge duct coupler (used as a place to thread nozzle within stock plumbing - about 7" long) actually bent in where the nozzle was! lol This coupler is titanium section for bleed air ducting used on _- _ _ aircraft. BVut yeah, nozzle still hooked up

 

The overflow limit on the IFS-10 is set at 2000ml/min. This is about equal to the pump free flowing though a 1/4 hose with no nozzle attached. At about 1350hp is were you would reach the limit of the IFS-10. So if anyone is making more then 1350hp and want to use the IFS-10 let me know and we can update the overflow limit for you

Best regards,

Dan

 

Dan I got all my parts for my new setup, but the wife said I have to wait til after Christmas to install it. Hopefully I can get it on the Dyno after the first of the year and my new clutch install.

 

get the wife a 5 carat moissanite, http://www.moissanite.com/moissanite_the_jewel.cfm and she will say you can get it done now

 

cpoevo - Thanks for the update, let me know if you have any questions with install or tuning.

Wow - you buy the wife that and she would probably install for you

Best regards,

Dan