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12-17-2010, 04:43 PM
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#21
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Name: joefarmer
Title: MR. Supreme Overlord
Status: Not Here
Join Date: Jul 2006
Location: ohio
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Posts: 6,137
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Hmm... I guess I have to find a CP3 bench and go test. Thanks guys!
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brandon'); DROP TABLE Users;--1948 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup' | 08 F250 CR RE swap | 05 2500 CR 68 standalone
firepunk.com
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12-17-2010, 06:50 PM
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#22
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Name: Stingpuller
Title: Too Much Time
Status: Not Here
Join Date: Feb 2007
Location: central Ohio
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Posts: 1,166
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Base pressure
If I have to much pressure to soon it will smoke at idle and pop and bank as soon as the boost starts to come up. It will not handle anymore pressure and function like it should. I have run 10 to 85 psi and 15 at idle and 45 seems to work for me. It also matters on mine how hot the fuel is at the rail. Jeff
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2007 GMC C4500 Regency Western Hauler and 235" POWERFLOW Dragster, Powerflow exhaust, 80mm Fleece turbo, Fleece injectors, On Track Auto front mount CP3, SoCal Diesel, Hughes powerglide, PTC converter, Nytrex nitrous,Isspro,FueLabs, Mike's Race Wiring, New Era Diesel, Hamilton Cam and all the guys at the shop
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12-17-2010, 08:21 PM
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#23
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Name: homewrecker
Title: gear jammer
Status: Not Here
Join Date: Oct 2007
Location: Statesville, N.C.
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Posts: 2,137
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Quote:
Originally Posted by DIESEL_POWER
on the cummins pump more inlet psi is needed for RPM, on a d-max it has a suction side allready, the cummins does not. the d-max pump is allready better in stock form alone. In theory a stronger fill charge should net better RP.....
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So youre saying the cummins pump cant pull its own fuel? I have accidently left my fass pump unplugged on several occasions and the truck ran fine with 10k in tow.
__________________
05 ram 3500 4x4 QC dually SOLD
05 2500 QC Laramie sport
Garmon built tranny
FI 63/68/.91 ETR-HO S480/92/1.25
dual pumps
105% injectors
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12-17-2010, 09:07 PM
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#24
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Name: full pull
Title: Sales&Support Valair Inc
Status: Not Here
Join Date: Jan 2009
Location: Texas
Member`s Gallery
Posts: 1,683
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Quote:
Originally Posted by Stingpuller
If I have to much pressure to soon it will smoke at idle and pop and bank as soon as the boost starts to come up. It will not handle anymore pressure and function like it should. I have run 10 to 85 psi and 15 at idle and 45 seems to work for me. It also matters on mine how hot the fuel is at the rail. Jeff
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Tell me about fuel temps.. I have debated running a cool can, like the gasser pullers run. I would think you would get more fuel if it was cooler but not sure what this would do to rail psi and if the injectors would like it.
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12-17-2010, 09:21 PM
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#25
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Name: WICKEDDIESELS
Title: SUPPORTING VENDOR
Status: Not Here
Join Date: Dec 2006
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Posts: 867
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Someone needs to pack one with ice, and compare it to rail pressures when hot.
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12-18-2010, 07:23 AM
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#26
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Name: Stingpuller
Title: Too Much Time
Status: Not Here
Join Date: Feb 2007
Location: central Ohio
Member`s Gallery
Posts: 1,166
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Yep!!!
Cold is good! Jeff
__________________
2007 GMC C4500 Regency Western Hauler and 235" POWERFLOW Dragster, Powerflow exhaust, 80mm Fleece turbo, Fleece injectors, On Track Auto front mount CP3, SoCal Diesel, Hughes powerglide, PTC converter, Nytrex nitrous,Isspro,FueLabs, Mike's Race Wiring, New Era Diesel, Hamilton Cam and all the guys at the shop
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12-18-2010, 08:15 AM
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#27
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Name: Brayden
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Feb 2007
Member`s Gallery
Posts: 596
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Quote:
Originally Posted by DIESEL_POWER
on the cummins pump more inlet psi is needed for RPM, on a d-max it has a suction side allready, the cummins does not. the d-max pump is allready better in stock form alone. In theory a stronger fill charge should net better RP.....
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What is a suction side? I haven't seen that in the drawings.
It has a gear pump, that's for sure. There is a suction throttle built in to the gear pump that limits overpressure. You can modify it and take that feature out if you think you need more pressure. Split the gear pump open and check it out.
We're running a pump on the JJ Machine truck at about 15% overdrive with no issues yet.
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12-18-2010, 01:17 PM
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#28
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Name: joefarmer
Title: MR. Supreme Overlord
Status: Not Here
Join Date: Jul 2006
Location: ohio
Member`s Gallery
Posts: 6,137
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Quote:
Originally Posted by Brayden
What is a suction side? I haven't seen that in the drawings.
It has a gear pump, that's for sure. There is a suction throttle built in to the gear pump that limits overpressure. You can modify it and take that feature out if you think you need more pressure. Split the gear pump open and check it out.
We're running a pump on the JJ Machine truck at about 15% overdrive with no issues yet.
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How many rpm is the JJ Machine truck turning?
__________________
brandon'); DROP TABLE Users;--1948 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup' | 08 F250 CR RE swap | 05 2500 CR 68 standalone
firepunk.com
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12-18-2010, 05:19 PM
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#29
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Name: Brayden
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Feb 2007
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Posts: 596
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It's on the 3700-4000 going down the track.
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12-19-2010, 02:38 AM
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#30
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Name: joefarmer
Title: MR. Supreme Overlord
Status: Not Here
Join Date: Jul 2006
Location: ohio
Member`s Gallery
Posts: 6,137
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I was hoping you'd say 6-7k.
__________________
brandon'); DROP TABLE Users;--1948 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup' | 08 F250 CR RE swap | 05 2500 CR 68 standalone
firepunk.com
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12-20-2010, 10:23 PM
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#31
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Name: Brayden
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Feb 2007
Member`s Gallery
Posts: 596
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Not yet.... I'd be happy with 5000
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12-21-2010, 05:40 AM
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#32
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Name: DIESEL_POWER
Title: NGM Diesel
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 5,178
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Quote:
Originally Posted by Brayden
What is a suction side? I haven't seen that in the drawings.
It has a gear pump, that's for sure. There is a suction throttle built in to the gear pump that limits overpressure. You can modify it and take that feature out if you think you need more pressure. Split the gear pump open and check it out.
We're running a pump on the JJ Machine truck at about 15% overdrive with no issues yet.
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i know the d-max pump is designed for suction from the factory.
the cummins is designed for positive psi inlet from the factory
That was my point, i dont mod them myself though.
__________________
Proverbs 3:5-6 (KJV)
5 Trust in the Lord with all thine heart; and lean not unto thine own understanding. 6 In all thy ways acknowledge him, and he shall direct thy paths.
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