9 replies to this topic

[Torana 202]

I've noticed the SBC fuel pump leaver has a different shape compared to the Holden red/blue/black motor pumps, has anyone checked the actual contact patch on the pump lever after running the Chev pump? 

 

Just a bit concerned that if the contact patch is not ideal that it might cause the cam eccentric to fail particularly with additional pressures of boost referencing the diaphragm.

 

Thanks

 

[Torana 202]

Edit : correct font colour.

 

I've noticed the SBC fuel pump lever has a different shape compared to the Holden red/blue/black motor pumps, has anyone checked the actual contact patch on the pump lever after running the Chev pump?

 

Just a bit concerned that if the actual contact patch is not ideal that it might cause the cam eccentric to fail particularly with additional pressures of boost referencing the diaphragm

 

[Ice]

I had a chev fuel pump on my 186 LC didnt have any issues at all

[Torana 202]

Thanks for confirming that.

 

On small block Chev's the fuel pump is actuated by a pushrod that makes contact at the end of the pump lever. Was just interested to know where the actual contact point on the pump lever is when driven off the Holden 6 cam. The blue motor pump contact patch starts at about 5mm from the end of the pump lever and goes down approx 12mm.

[jd lj]

To be honest I don't see the need for a sbc pump on a street driven red motor.

I've had one previously, but have had no problems with a std pump on the same motor.

Maybe if you are reving to 6800 rpm down the length of conrod straight and have a high fuel demand it may help, but on a street car you'd be lucky to maintain those sort of revs for more than a few seconds and therefore the std pump is adequate from my experience atleast.

[Ice]

I agree, they aren't really necessary but they are half the price (or less) than the Holden pumps...

Bingo