Airtex #3158 for '93 and E3540 for 99 differances???

[ghost183]

ok, ive read all the kudos on the E3158 for the 93 diesel as a better pump than the OEM E3540 for a 99..

but why? more pressure? more flow? more reliability?

what are the differances?

i googled and didnt come up with anything..

any ideas fellas?

 

[chrisk1500]

Have a quick scan through this site....look for Matuva - I believe he is the one that has already typed up the differences in pumps...

 

[ghost183]

Have a quick scan through this site....look for Matuva - I believe he is the one that has already typed up the differences in pumps...

will do chris.. tried searching for the pump.. but now im going to search for matuvas posts... thanks bud

 

[matuva]

Here is what I read with my gauge for the Airtex. It is said to be a HO at 10~14 PSI according what's written on the pump.
- at WTS : 12 PSI
- at iddle : 7 PSI
- at WOT : 3~4 PSI.

I don't remember precisely the how much this pump is able to push in volume...

 

[Matt Bachand]

Here is what I read with my gauge for the Airtex. It is said to be a HO at 10~14 PSI according what's written on the pump.
- at WTS : 12 PSI
- at iddle : 7 PSI
- at WOT : 3~4 PSI.

I don't remember precisely the how much this pump is able to push in volume...

Exact readings of my AC-Delco ordered for a 93.. Not sure on model number.

 

[matuva]

ACDelco is EP158

 

[Matt Bachand]

Here is what I read with my gauge for the Airtex. It is said to be a HO at 10~14 PSI according what's written on the pump.
- at WTS : 12 PSI
- at iddle : 7 PSI
- at WOT : 3~4 PSI.

I don't remember precisely the how much this pump is able to push in volume...

On re-read, I never tested WOT. That could be a large difference.

 

[JMJNet]

http://www.dieseltowingresource.com/showthread.php?t=7103

I posted it in #5. This was the spec I got from Delphi LP catalog on the difference between the two pumps. It may be slightly different than the Airtex but I don't think it is significant.