my next question... what chassis?

[Jean-Sebastien Stoezel]

Would it be legal to spray a mist of water into the cooling scoops or even directly onto the heads while on the track?

Significant. Run the engine up on the dyno, hold it at peak HP, then spray some water on the heads.. Watch what happens..

[sracing]

I think any water sprayed on or near the track would be unacceptable. Also depending upon how you read the rules, FV is an spec'd AIR cooled engine.

[Jean-Sebastien Stoezel]

I think any water sprayed on or near the track would be unacceptable. Also depending upon how you read the rules, FV is an spec'd AIR cooled engine.

I read the gcr, and yes it only mentions that you're supposed to use an air cool engine... But it never said you cannot spray water into the cooling scoops, for cooling purposes or any other reason...

[Tiago Santos]

Isn't it usually a case of if it doesn't say you can do it, you can't?

[Matt King]

A lot of good that clause has done in regards to intake manifolds, just to mention ONE thing... Who's to say you aren't using a Cool Suit system that just happens to have a leak! Better to have that stray water vaporize on the heads than to allow it to drop directly onto the track.

[veefan]

[FONT=Verdana]Water would weight a lot...create steam,,, get on the track... etc.. you should just use a [FONT=Verdana]CryO2 Intercooler Sprayer Kit[/FONT]... They are used to cool intercoolers on turbos, just put a nozzle in each cooling scoop.... CO2 is a component of air... [/FONT]

[Hardingfv32]

I'll develop a test for the dyno using a windshield wiper spray pump and see what is possible. I think the system would have to be pneumatic when installed on the car because of the battery rule section. There is also the issue of the water's weight. Sounds like a push to pass type of feature at best.

Brian

[veefan]

Since the system sprays cool CO2 over the heads... it also acts as a secondary fire supression system.

[Jean-Sebastien Stoezel]

I'll develop a test for the dyno using a windshield wiper spray pump and see what is possible. I think the system would have to be pneumatic when installed on the car because of the battery rule section. There is also the issue of the water's weight. Sounds like a push to pass type of feature at best.

Brian

Ahaha, to be clear: I asked the question because the GCR didn't specifically say you couldn't do that. I only wanted to know whether it's allowed and everybody can do it, or it's not allowed and it shouldn't be attempted.

[veefan]

This thread has gone way off topic... but this should start to make it interesting...

A Mono Shock rotary damper system...

https://sites.google.com/a/slu.edu/m...-racing/design

[Steve Bamford]

Wow has this thread ever got off topic

[Tiago Santos]

Wow has this thread ever got off topic

Just how we like it!

[Daryl DeArman]

Actually, it has just morphed from which chassis? To this one is better because...to head cooling is to be weighed against aero to difference in suspension design, aero drag and Cg height...to just about anything built in the last 20 years that is set up and driven well will be competitive against 95+% of the the FV's out there.

[Tiago Santos]

I guess this is now the definitive thread on FV's, then!

[smsazzy]

You certainly could not use water. You would get meatballed for leaking fluid.

CO2 does not exist in liquid form a 1bar of pressure, so you may be able to get around it there. However, I think creating a smoke screen for your competitor to try to drive through would not be taken to kindly. I think you'd leave the track with a broken nose after pulling that on someone.

[Hardingfv32]

A properly sourced mister or nozzle is not going to even cause steam. A following car will not see any indications of such a system in use. Gross symptoms that you are mentioning would just be a waste of water and weight.

The CO2 system is ideal and again would not be detectable. I'm not sure about the weight of liquid CO2. I would think it could be lighter per unit of cooling.

Brian

[sracing]

Water or any liquid would certainly not pass any protest. I also suspect (and would protest) any cooling method with any gasses other than ambient air. While I don't see anything specific in the rules, the preamble to FV would certainly make this illegal.

[FONT=Univers][FONT=Univers]"Formula Vee is a [/FONT][/FONT][FONT=Univers-Bold][FONT=Univers-Bold]Restricted Class. [/FONT][/FONT][FONT=Univers][FONT=Univers]Therefore, any allowable modifications, [/FONT][/FONT][FONT=Univers][FONT=Univers]changes, or additions are as stated herein. There are no exceptions.[/FONT]
[/FONT][FONT=Univers-Bold][FONT=Univers-Bold]IF IN DOUBT, DON’T."[/FONT][/FONT]

[FONT=Univers][FONT=Univers]Also since it is "air cooled" I would determine that CO2 or anything else, etc. is not a definition of normal air. (O2, N, CO2, etc.) [/FONT][/FONT]

[FONT=Univers][FONT=Univers]While mentioned above the manifold changes over the years were not a similar issue. The GCR stated allowed mods, with weights, sizes, etc. Thus it would be assumed that it could be modified within those rules. [/FONT][/FONT]

[Hardingfv32]

OK, CO2 is out, back to water. The rules do not specify the HUMIDITY level of the cooling air. Do I get clearance for takeoff?

"IF IN DOUBT, DON’T" Remember I never have any DOUBTS about what I am doing, so I would not consider that statement an impingement.

Brian

[sracing]

Well, Give it your best shot.. My guess is this one won't fly..

[butch deer]

I thought some GT I cars sprayed water on thewre brakes to cool them.
Butch

[sracing]

The big rigs (Freightliners, Mack's etc) do it when racing but not the GT-1's