tork tek overflow valve?

BDet94 said:
I was reading on their web site about all the different valves and pressures they will produce and was just wondering why they say that certain valves can not be used with a fuel systems and othes have to be used with a fuel system?
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I imagine since they are using a fixed orifice, that in order to achieve a desired pressure, you have to have a specified amount of flow.

The stockers use a spring and a ball that open at a certain pressure.
The orifice type is always open- so if your fuel system doesn't have enough flow, your not gonna have enough pressure.
 
T tek makes an adjustable ball and spring style

But if u are going to electric in the future just waitto get an orifice type.....


You guys can also make you own ofv with a wide open banjo bolt then use a regulator in the return line
 
Ive never heard of the overflow valve being upgraded until now, Looks like ill have to get one for my truck now. Thanks
 
there are a lot of upgrades out there that are not talked about. some things need to be kept a secret though.
 
It also says " This valve is for super hot Cummins performance trucks using an AirDog, Raptor or FASS pump. " but also says " Do not use the HP valve on a stock fuel system! This valve will raise pressure spikes to the point that the stock fuel filter canister will blow a seal. The valve is intended for Cummins P7100 trucks using a FASS, Air Dog or high volume, performance fuel pump only."
 
dipapadakis said:
with a raptor pump do you want an adjustable one or would the 60 ofv work?
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pic_jon said:
AIR DOG AND FASS PUMP USERS... Click Here>>> CUMMINS P7100 HIGH PERFORMANCE OVERFLOW VALVE OFV060HP - Tork Teknology
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dipapadakis said:
It also says " This valve is for super hot Cummins performance trucks using an AirDog, Raptor or FASS pump. " but also says " Do not use the HP valve on a stock fuel system! This valve will raise pressure spikes to the point that the stock fuel filter canister will blow a seal. The valve is intended for Cummins P7100 trucks using a FASS, Air Dog or high volume, performance fuel pump only."
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The Tork Tek adjustable OFV is for systems that don't already have a regulator built in, like the stock system, in which the OFV alone regulators the pressure.

The non adjustable OFVs are to be used only with systems that already have a regulator incorporated, like a FASS, Air Dog, Raptor, etc. An adjustable OFV on this system works but isn't ideal.

So in simple terms if you have a stock lift pump still in place you need an adjustable or stock OFV. If you have a FASS, AD, or Raptor you want a non-adjustable.
 
I have an airdog raptor pump and a stock ofv with a stiffer spring and shims. No stock pump. At first I had no fuel returning to the tank so I had to lighten the spring tension in the ofv. So my advise for those with stock pumps is to stick with ofv's with a spring and ball. And for those with electric pumps and no stock pumps to at least check for fuel returning to the tank.
 
Ok thanks so will the stock filtration work with a raptor and an 060 ofv or will it be way too much pressure/gph for the stock filter/canister to handle? If not any good alternative solutions or just save for an airdog?
 
dipapadakis said:
Ok thanks so will the stock filtration work with a raptor and an 060 ofv or will it be way too much pressure/gph for the stock filter/canister to handle? If not any good alternative solutions or just save for an airdog?
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The raptor has a built in regulator so you shouldn't ever have to worry about too much pressure from it. Excess flow is also not a concern.
 
tork tech's website say i would want to set my fuel pressure to 40psi @ wot which goes to about 50psi or so at idle. Is that too much pressure for the stock canister or is it not an issue? thanks (he says the seals will blow out of the stock canister?)
 
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