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Fuel System Help!
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 5,730
Likes: 270
From: VENTURA Ca
I run my external pump off a boost switch. It only come on at about 4# boost. I put a check valve in the factory feed line so it can't backfeed and overpower the in tank pump.
The regulator we use will jack the pressure up to 85 PSI if needed.
I use stock rails with a return line coming out the end where the boost gauge would normally mount. It works great.
The regulator we use will jack the pressure up to 85 PSI if needed.
I use stock rails with a return line coming out the end where the boost gauge would normally mount. It works great.
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PLEASE TAKE A MOMENT TO VISIT OUR WEBSITE AT WWW.AACORVETTE.COM
NOW PARTNERING WITH AFFIRM TO OFFER INTEREST FREE FINANCING!
ANDY GREEN- OWNER/ CEO -A&A CORVETTE / A&A SUPERCHARGERS
477 LAMBERT ST
OXNARD CA 93036
WWW.AACorvette.com
A&A CORVETTE SUPERCHARGER SYSTEMS
HOME OF THE WORLDS FIRST
CENTRIFUGALLY SUPERCHARGED C7
SUPERIOR ENGINEERING- SUPERIOR POWER
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Andy@AACorvette.com 805- 278 4107
Drifting
Joined: Mar 2005
Posts: 1,737
Likes: 0
From: Northern VA
Not if this is true:
If it were pump polarity it would do it all the time, no?
If it were pump polarity it would do it all the time, no?
Safety Car
Joined: May 2002
Posts: 3,615
Likes: 2
From: waterloo ontario
St. Jude Donor '08
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
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From: http://www.mphparts.com 800-364-1975
If the Bosch were running only off boost or a pedal switch, Mike likely would have known sooner that the OEM pump was setup incorrectly.
Le Mans Master
Joined: Aug 2004
Posts: 5,972
Likes: 48
From: NCM Lifetime#2195 Bulverde, Texas 78163
St. Jude Donor '13
Intank pump was backwards. It would suck instead of push. I will connect correctly and test. I am also intalling a swith to ingage the Bosch pump on boost starting at about 4 psi. Hopefull will be running later on tonight.
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Le Mans Master
Joined: Dec 2005
Posts: 8,475
Likes: 332
From: Port Arthur, Texas 77642
Glad to hear solution in progress. Keep us posted
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
Likes: 2
From: http://www.mphparts.com 800-364-1975
Which pressure switch are you going to run? Coolingmist.com has a few nice ones for their alky kit, adjustable from 1-25psi I think.
Good luck guys!! I know how much fueling issues can drive you crazy. I lived with them for years until I got my ECS kit, now I never worry about fuel pressure... ever.
Racer
Joined: Sep 2004
Posts: 368
Likes: 0
From: Melbourne FL
Does anyone worry about the fact that the new style ECS f/p is mounted on the outside of the frame rail? I like the older setup, even thow it is close to the cat-back isn't it is safer? BTW I run racetronix/BAP and the ECS older style set up. No drop off, @ 6500 I see over 70psi with the boost reference, and this is a street driven car. Then again it has not been warmer then 60 yet.
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
Likes: 2
From: http://www.mphparts.com 800-364-1975
Does anyone worry about the fact that the new style ECS f/p is mounted on the outside of the frame rail? I like the older setup, even thow it is close to the cat-back isn't it is safer? BTW I run racetronix/BAP and the ECS older style set up. No drop off, @ 6500 I see over 70psi with the boost reference, and this is a street driven car. Then again it has not been warmer then 60 yet.
Have you daily driven that car in 95+ degree weather? I had so many issues with fuel pressure once it got hot down here that I never bothered to mount my ECS pump inside the frame rail, even when this was common place. I think I was one of the first to mount it outside the frame rail, and it has worked beautifully there. But I honestly don't know if *this setup* would have been fine inside the frame rail, which is why I ask if you have driven yours a lot in hot weather.
I know that plenty other setups, including beefy Aeromotive pumps, a high output pump from SX Performance, and twin Walbros *did not* like the heat inside the frame rail and *did not* like to push large amounts of fuel for an extended time when the summer rolled around down here. They would all lose fuel pressure after some period of time.
Last edited by Tony @ MPH; Mar 11, 2007 at 11:43 AM.
Thread Starter
Race Director
Joined: Jan 2003
Posts: 19,802
Likes: 0
From: San Antonio Texas
St. Jude Donor '05-'06-'08
Temp.
Does anyone worry about the fact that the new style ECS f/p is mounted on the outside of the frame rail? I like the older setup, even thow it is close to the cat-back isn't it is safer? BTW I run racetronix/BAP and the ECS older style set up. No drop off, @ 6500 I see over 70psi with the boost reference, and this is a street driven car. Then again it has not been warmer then 60 yet.
Racer
Joined: Sep 2004
Posts: 368
Likes: 0
From: Melbourne FL
I admitt, I do not have the sustained heat like you. I have not even tested my ECS old set up against the heat that the No. East brings, but my thoughts on my post were on safety. However I guess you got to do - what you got to do, and hope for the best. I have a question, are you guys running a boost referenced regulators?
Safety Car
Joined: Jun 2004
Posts: 4,353
Likes: 22
From: Bella Vista Ca
I admitt, I do not have the sustained heat like you. I have not even tested my ECS old set up against the heat that the No. East brings, but my thoughts on my post were on safety. However I guess you got to do - what you got to do, and hope for the best. I have a question, are you guys running a boost referenced regulators?
Thread Starter
Race Director
Joined: Jan 2003
Posts: 19,802
Likes: 0
From: San Antonio Texas
St. Jude Donor '05-'06-'08
Fuel System
Well Arnold pulled the intank pump and swap the polarity on the wires and looks like we have 2 working pumps now, the next step is call Cory and head to the Dyno on Thursday! ! ! Im still going to go with a Check Valve and a vacum switch so I dont have to run the External Pump all the time! ! !
What this means is that Peterpan will no longer have more RWHP than me! ! !
What this means is that Peterpan will no longer have more RWHP than me! ! !
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
Likes: 2
From: http://www.mphparts.com 800-364-1975
Well Arnold pulled the intank pump and swap the polarity on the wires and looks like we have 2 working pumps now, the next step is call Cory and head to the Dyno on Thursday! ! ! Im still going to go with a Check Valve and a vacum switch so I dont have to run the External Pump all the time! ! !
What this means is that Peterpan will no longer have more RWHP than me! ! !
What this means is that Peterpan will no longer have more RWHP than me! ! !