Engine/Transmission (1998.5 - 2002) Don't Understand - LP Pressures

[Gary - K7GLD]

It could be interesting to check the temp of the fuel at some point in the line close to the engine to see how much fuel might have cooled in the run thru the lines from the tank - depending on how much the fuel gets heated by the LP and any other pumps along the way... If heated fuel and potential VP-44 damage is an issue for some, pretty easy to run the fuel thru a cooler such as an aftermarket automatic transmission fluid cooler - the cold weather guys would have to disable it in winter months... OR it could be placed in the fuel return line to cool the fuel before it's returned to the tank...

 

[RNelson]

Did you all read the article in the latest issue of TDR (#43) on page 156 about the FASS Fuel System? Sounds like a good solution to DC's poor design of using a lift pump to push. Anybody have any experiences (good or bad) with this system?

 

[rweis]

Our TDR club has met at 2 different high pressure pump rebuilders. The common song was NO read that as NO water in the fuel. Water in the VP is a very bad thing cited above.



That's why I have a 5 prong approach.



RACOR 690 before the lp = NO water in the fuel.

Bypass regulator on the lp to keep the stupid check valve closed.

Stanadyne Performance Formula every tank to lubricate the lp & VP.

Bigger fuel lines, as few turns as possible to be sure VP gets fed.

Move lp to the frame so it can push.



The Stanadyne is for those one micro second events that there is not enough fuel lubrication for the VP, since the Stanadyne has already coated the surfaces the micro lapse in fuel lubrication will be less damageing. It also ..... but those are nice additional features.



Bob Weis