Govenor Setups (P-Pumps)

RyanB

RyanB

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Aug 10, 2006
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Hey Guys, I was just reading the thread on the hand throttles and there is a bit of talk on govenor style and no real info on them.

I think a thread dedicated on govenors should be started as to the different styles and how they actually work. I know some stuff about the different setups used on the P-pumps and am no where near a pro or expert on the subject and would really like to learn there innner workings!

Anyone want to share some info on them?

RyanB
 
RQV is the standard gov. for the P7100 pumps used on the pickups, this governor uses a centrifugal weight/spring set-up to control fueling and limiting. The springs cotrolling the weights are for high and low idle and can be swapped out to allow a much higher fueling limit (gov. spring kits) while the fuel plate meters max fuel and the arm on the aneroid meters fuel limits under boost...

The "ag gov." or the one used in agricultural applications and TRACTOR pulling is an RSV governor, in this governor there is only a set of weights which is connected through a linkage to a spring which acts as a high idle limiter...there is a lot more to these govenors than just what i mentioned, but my break time is over so i'm done for now...

there's much more to be discussed, but that should be enough to spark some comments by other pump guys and inquiring minds...
 
Smokem had some great internal diagrams of P-pumps posted a long time ago, but I think they are gone now. Maybe he can post them up.

-Tom
 
bump...

I'm trying to find some decent links to diagrams to post but not having any luck...I know there are quite a few other pump guys on here that ought to chime in and build on what I already layed out...
 
Come on guys! there must be more info out there than this!!

Who here is pulling or has had the Ag style govenor on there pumps? Lets hear a list of advantages this style has over the standard one our pumps come stock with. What kind of govenors do the other big pumps have (Sigma) if any at all!

Im not doing to much to my truck this winter and swapping some pump parts might just have to be on the list of the few things to do to the truck if I can get some good info on it.

Thanks guys...RyanB
 
A stock p pump can rev to at least 5300 rpm no load but doesn't full to the rpm it will only fuel to maybe 4k or so,my personal experience. The ag gov pump will free rev to 6k + if you want and will fuel that high as well. The big advantage to the ag gov is that if you are running enough camming,and turbo you could acually go down the track under full load turning over 5k and this very important when you run a huge turbo as it takes a bunch of rpm to keep it lit.
The stock gov sits at no fuel when shut off, the ag gov sits at full fuel when shut off and has to be "killed" to start.

You can put a ag gov on a stock p pump with stock b and p 's if you wanted to but it would be a waiste time.

IKE
 
With only 12 mm b and p 's you wouldn't see the advantage of the higher rpm capabilitys the gov gives and the stock cam in the p pump needs work for quicker delivery again to achieve higher rpm, All this and more it put into a bigger pump for it to run well at higher rpm's

IKE
 
the other little catch with an ag govenor is that it tends to be a little lazy on the engagement so if you snap an axle you can overspin the engine before the govenor kicks in and slows the pump up, thats what Van Haisley told me to watch out for with my pump.
 
you can get more than 4k down the track with a RQV if you have the motor and pump to do it.


RQV = big heavy gov that works great for a daily driver nice and smooth street friendly and can achieve decent fueling rpms.

RSV = Small light weight less moving parts, flyweight assy. much smaller only one gov. spring. Can be very touchy not street friendly works better for higher rpm's

Sigma gov's all together a much different governor than what RB uses
 
smokinrod said:
the other little catch with an ag govenor is that it tends to be a little lazy on the engagement so if you snap an axle you can overspin the engine before the govenor kicks in and slows the pump up, thats what Van Haisley told me to watch out for with my pump.
Click to expand...

Smokinrod- Any specs you can share on your pump. I think mine is a definate canitidate for the ag govenor. Mine has 13mm p&B's, custom cut cam, dual feed and a bunch of other goodies. Right now I have my actual govenor lightend and balanced which gave me 4000rpm out of it with out the use of a GSK kit...with the 4K springs I can see almost 6K but like mentioned above...it doesn't fuel up that far. My set of twins is larger and could deffinatly use more fuel up top in the RPM.

Here is another question. Say I was ordering a custom competition P-Pump from say Schied's what would it come with? I know 2 years ago when I had mine built I was talking to both them and Haisleys and neither really said much about the Ag style govenor at that time but at the time the truck was still a dual purpose truck...now its just for the track.

Any other info or idea's you guys want to share....aprox cost to swap it in???



RyanB
 
you would get a 3000 series pump with a RSV gov, at least that's what I would recommend to you
 
RyanB said:
Smokinrod- Any specs you can share on your pump. I think mine is a definate canitidate for the ag govenor. Mine has 13mm p&B's, custom cut cam, dual feed and a bunch of other goodies. Right now I have my actual govenor lightend and balanced which gave me 4000rpm out of it with out the use of a GSK kit...with the 4K springs I can see almost 6K but like mentioned above...it doesn't fuel up that far. My set of twins is larger and could deffinatly use more fuel up top in the RPM.

Here is another question. Say I was ordering a custom competition P-Pump from say Schied's what would it come with? I know 2 years ago when I had mine built I was talking to both them and Haisleys and neither really said much about the Ag style govenor at that time but at the time the truck was still a dual purpose truck...now its just for the track.

Any other info or idea's you guys want to share....aprox cost to swap it in???



RyanB
Click to expand...


mine was a costum Scheids pump it was adjustable by a fuel screw to go from 350cc's to a 1000cc's of fuel had to be run with a hand throttle (you could barely move the throttle lever by hand on the pump) . it comes with absolutely NOTHING no brakets no mounts nothing not evan a pump nut. then we had to buy the adjustable timing gear ,with our pump they said it was mandatory. what they will neglect to tell ya is that you will also need a aluminium front cover so you can get to the timing gear. I guess if you are buying a pump of that size , I should of had the knowledge of what to expect LOL.
 
The adjustable/keyed pump gear is NOT needed with those sized pumps it can be made to stay timed for NO money. But the gear does make it nice to adjust timing with less tools.

IKE
 
smokinrod said:
mine was a costum Scheids pump it was adjustable by a fuel screw to go from 350cc's to a 1000cc's of fuel had to be run with a hand throttle (you could barely move the throttle lever by hand on the pump) . it comes with absolutely NOTHING no brakets no mounts nothing not evan a pump nut. then we had to buy the adjustable timing gear ,with our pump they said it was mandatory. what they will neglect to tell ya is that you will also need a aluminium front cover so you can get to the timing gear. I guess if you are buying a pump of that size , I should of had the knowledge of what to expect LOL.
Click to expand...

I would like to hear a bit more about the fuel screw on this setup...is it part of the housing that holds the govenor??? I have never heard of this with a P7100 series pump
 
you can buy a fuel plate to do that, it's a bosch part you have to remove the aneroid and use a different cover
 
RyanB said:
I would like to hear a bit more about the fuel screw on this setup...is it part of the housing that holds the govenor??? I have never heard of this with a P7100 series pump
Click to expand...


I'll go out on a limb here and assume he is running a 2000 or 3000 series pump with an RSV governor...and in that case the fuel screw comes out of the back of the governor towards the bottom (not everybody has them external, but it makes adjusting fuel a lot easier and quicker) and if my assumption is correct the fuel screw looks liek a piece of all-thread with a notch out of the end for adjustment with a flat head screwdriver and is locked in place with a 10 mm nut...
 
CTDYoungGun said:
I'll go out on a limb here and assume he is running a 2000 or 3000 series pump with an RSV governor...and in that case the fuel screw comes out of the back of the governor towards the bottom (not everybody has them external, but it makes adjusting fuel a lot easier and quicker) and if my assumption is correct the fuel screw looks liek a piece of all-thread with a notch out of the end for adjustment with a flat head screwdriver and is locked in place with a 10 mm nut...
Click to expand...


they say it's a P7100 and it does have a RSV governor on it but they screw is like you said but it is more towards the top. and it comes with a adjustment chart5 for fuel so many turns equals so much fuel.


and as far as the gear goes , it is an option on there 800cc pumps but they do claim it is a must have on there 1000cc pumps ( this is a Mod truck pump)
 
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