Injection pump testing

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Re: Injection pump testing

Postby GLHS » Tue Apr 12, 2011 10:35 pm

This would explain why after I made my 13.34 pass and sent the pump off to PDR for a rebuild, I lost about a 1/2 second in the quarter 4 years ago. :?
92 W250 ext cab, 5spd, SPS 62/71/14, ATS 3 piece, Banks 3G intake, Icebox CAI, DDP #4+, timing 1.95 mm, SB 4 puck FE, PDR fuel pin, Hellmann intercooler, Snow water/meth, 60# springs, stock long block, D80 3.54 w/disks, 455+/1005 uncorrected, 13.34@102 7-06; 472 fuel/520 water/meth uncorrected 5-08
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Re: Injection pump testing

Postby The_Head » Wed Apr 13, 2011 8:49 pm

Live and learn, I'm still going to run it. Maybe I could send off to Giles first? :lol:
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Re: Injection pump testing

Postby bgilbert » Thu Apr 14, 2011 12:11 pm

The_Head wrote:Live and learn, I'm still going to run it. Maybe I could send off to Giles first? :lol:

IMO, kta would be the one to send your pump too.
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85 D350 crew with 90 6BT intercooled Getrag 3.07's
93 D350 single cab Getrag 3.54's.
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Re: Injection pump testing

Postby The_Head » Thu Apr 14, 2011 6:03 pm

Well sthi, maybe he better not send it back then!
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Re: Injection pump testing

Postby SNOOT » Sun Apr 17, 2011 10:01 pm

KTA when you did all your testing did these pumps have the solenoid plunger in or out?
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Re: Injection pump testing

Postby KTA » Mon Apr 18, 2011 7:08 pm

I take them out so i don't have to have 12V power and a good ground in order to make them function.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
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Re: Injection pump testing

Postby KTA » Mon Apr 18, 2011 7:16 pm

Well today I adjusted the Piers pump and reran it. The fuel was much hotter in the test stand today since it was 30deg warmer in the shop and I wonder if it might have effected the reults a little. Either that or I tweaked it a bit more for top end or maybe this pump has a bit more spring in it Probably just the temp diffrence since results were nearly identical across the board.
RPM CC
1000 280
1250 290
1500 280
1750 280
2000 270
2250 270
2500 260
2750 250
3000 240
3250 220
3500 210
3750 150
4000 70
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
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Re: Injection pump testing

Postby SNOOT » Mon Apr 18, 2011 7:51 pm

KTA wrote:I take them out so i don't have to have 12V power and a good ground in order to make them function.



Thank you kinda figured so.. I guess it was wishful thinking that maybe the solenoid valve had something to do with the high RPM fuel loss.
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Re: Injection pump testing

Postby Stomp » Tue May 31, 2011 7:57 pm

Well here is the results from my last testing session. Yeah Yeah I know the 14mm and 4mm cam plate don’t work well together. I just had to try when we got 500cc I thought we were onto something. J KTA was right about what happens when running them. With increased rpm’s they start loosing flow.

The below numbers were done at test stand rpm's X2 for motor rpm's.

It flowed 450cc @ 500rpm's with air.
450cc @ 750rpm's with air.
410cc @ 1000rpm's with air.

Valet was 330cc @500 rpm's without air.

14mm with 4mm cam plate which resulted in seizing the pump.

500cc @ 500 rpm with air
490cc @ 750 rpm with air
360cc @ 1000 rpm with air

I don’t know why we didn’t test them at higher rpm’s, I mean we spent 12 hours at the shop. I guess when we tested all of them in the past we never did. If we would have gained anything down low we would have known from the previous tests.

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93W250CTD,7 isspro gauges,Piers stage 2+ ported/polished/o-ringed head,ARP 12mm studs,ATS 3 piece,Custom twins by Brad @ Ponci's Diesel Center BTH3B/26 w/Piers HX40/16, custom 4"exhaust/ intake by Brad@ PDC,370's,KTA-Special 14mm Head/Rotor
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Re: Injection pump testing

Postby JQmile » Tue May 31, 2011 8:16 pm

It looks like you still got some more fuel out of it!!

That's crazy about the 14mm/4mm combo....I think that should put that sucker to rest for good....it would be perfect if you could make peak power at 1,000rpm, but that might be a little hard on the motor :D
1989 D250 2wd. Scheid 14mm VE pump and 5x25's, J&H Performance 47RH trans with Suncoast manual valvebody, dual wastegates, 62/65/14 S300, NX Dual Stage nitrous, 487 on fuel, 972 on the jug.
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Re: Injection pump testing

Postby oldestof11 » Wed Jun 01, 2011 3:23 am

The trans you mean. :shock:
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Re: Injection pump testing

Postby KTA » Sat Jun 04, 2011 11:18 am

That sucks that another 14mm has bit the big one.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
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Re: Injection pump testing

Postby Kasper Cummins » Mon Aug 15, 2011 6:58 pm

Have you done anymore testing on the VE. By the way this is great information.
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Re: Injection pump testing

Postby RacinDuallie » Thu Jan 05, 2012 5:43 pm

1STGENFARMBOY wrote:Thanks for doing the VE research KTA, it's almost like nobody
cares about the old VE anymore.

Dar


:) Aint that the truth!!

I'll be keeping an eye here ! PROPS to KTA :mrgreen:
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Re: Injection pump testing

Postby Alec » Sun Jan 22, 2012 7:21 pm

In my opinion, its a really big deal to give away this information, so thank you for sharing it.

Maybe I just missed it, but have you or anyone done flow tests on the vane pump? I don't even know what its swept volume is.
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