Bdk Valve ?

thanks for taking the time to look at my post. i need some kind of a valve that will shut a small fuel line off at the 1 2 shift. i want this jetted check valve line to open at 7500 and at the shift it will close with co2 pressure from the air line going to the transmission.does someone out there make something like this ? also what is a BDK valve?

thanks for your help

Jim Stanke

 

Hi Jim,

It sounds like you want a high-speed lean-out only in 1st? Or is this in addition to the main high-speed? Regardless of your intentions, this is easy. Find out what your fuel pressure is at 7500 rpm and fit a high-speed lean-out adjusted for that pressure. Then all you need is an air operated valve (in series with the additional high-speed) that is 'normally open' (NO) to close when you shift to 2nd. All it needs is a signal/supply from the shift line to the transmission.

Be aware, if you make any changes to your fuel system it will affect the rpm at which it opens, just like a regular high-speed. Good Luck!

 

Where do you get the "air operated valve" you refer to? and also an electric version?

 

Check with Dave Leahy @ www.electrimotion.com

Brandon

 

Any hydraulic and/or pneumatics company can supply these.

At worse, one may have to use an electric pressure switch on the transmission shift line to drive an electric solenoid valve on the new high-speed line. A bit more work to set up, but still achievable and can allow more options. Electric solenoid valves draw very little power (they are basically a relay).

 

I'm surprised to hear that, doesn't the alky eat normal hyd valves up?

 

To be honest with you, I don't know (never tried), although o-rings seem to survive ok. However, there are different types of seals available (NBR, Viton, etc), you just specify what you want when you order the valve. As long as one remembers to flush the system regularly, why shouldn't it last?

Some of the air operated valves require 40psi (pilot pressure) to move the main valve, so it might be better to use an electric valve. As most of them are normally closed (NC), one will need to operate them through a changeover relay. Again, this could be very handy for other uses that one might want to occur at the same time.

The possibilities are endless!

 

what is a bdk valve

thanks for all the replies but i still dont know what a bdk valve is ?

 

http://www.bdkindia.com/
Yahoo to the rescue?

 

I can get you in contact with Don Jackson the creator of the BDK Valve, I know what the BDK is used for but I do not want to give you any misinformation and make it more confusing. Don was here at my shop last week and we talked about a Alky car using one of these so I would bet he would talk to you. PM me with your email address and I will forward it to Don