different primary/secondary pumps in a dual pump system?
#1
Teching In
Thread Starter
Join Date: Nov 2011
Location: Regina, Sk, Canada
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
different primary/secondary pumps in a dual pump system?
Quick set up notes:
'97 Corvette
427cu stroker with P1SC1 Procharger at 14lbs boost
70 lb injectors
Looks like it should put 700hp to the wheels through a 4L60E (made 663ft-lbs torque at 4000rpm first pull but lost fuel pressure at the top end)
Lingenfelter suggested walbro 255 + racetronic harness to supply the fuel... it wasn't enough so we got the walbro 400 + MSD voltage booster... something went wrong - still having fuel pressure fall off... was suggested to go to dual pumps so the dual pump hanger is on its way...
Here's the question(s):
Can I/Should I run the walbro 400 as the primary pump with the racetronic harness and attach the walbro 255 to the MSD voltage booster so it only kicks in when needed?
-Do the dual pumps need to be the same? Should I buy another walbro 400?
-Should we hook it up the other way?
-Should they both pump together always? and additionally with boost?
-Will the 255 play out pumping alongside the 400?
Thanks for the advice!
'97 Corvette
427cu stroker with P1SC1 Procharger at 14lbs boost
70 lb injectors
Looks like it should put 700hp to the wheels through a 4L60E (made 663ft-lbs torque at 4000rpm first pull but lost fuel pressure at the top end)
Lingenfelter suggested walbro 255 + racetronic harness to supply the fuel... it wasn't enough so we got the walbro 400 + MSD voltage booster... something went wrong - still having fuel pressure fall off... was suggested to go to dual pumps so the dual pump hanger is on its way...
Here's the question(s):
Can I/Should I run the walbro 400 as the primary pump with the racetronic harness and attach the walbro 255 to the MSD voltage booster so it only kicks in when needed?
-Do the dual pumps need to be the same? Should I buy another walbro 400?
-Should we hook it up the other way?
-Should they both pump together always? and additionally with boost?
-Will the 255 play out pumping alongside the 400?
Thanks for the advice!