Carbed 85 fuel pump problem
Thread Starter
Instructor
Joined: May 2008
Posts: 120
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From: Missouri
Carbed 85 fuel pump problem
I am rebuilding my 85 and putting in a carb setup. I have been told that the stock in-tank pump will be fine with a regulator. I have also been told that the fuel pump will not run right after I remove the ecm. What can I do to fix this problem.
Thanks in advance.
Thanks in advance.
Instructor
Joined: Feb 2004
Posts: 170
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From: SWEDEN 1984 c4 with Edelbrock RPM toppkit
http://store.summitracing.com/partde...5&autoview=sku
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Burning Brakes
Joined: Sep 2006
Posts: 1,142
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From: Spring Grove Illinois
I left mine in also..But I had to wire a keyed source to the stock F/P inorder to keep it running..It won't run without that..And I'll be darn if I can find what wire to key..Can anyone help This new "Dark Sider"...Mines Indisposed right now so I can't look for him...
Pro
Joined: Feb 2005
Posts: 560
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From: Hamilton New Jersey
Way too much rubber hose to pass tech inspection, it's considered unsafe. I have my regulator hooked up in a similar fashion except with less hose, and I used steel braided -6an line from earls. Also I ran it from the factory filter up under the blower motor to keep it far away from my headers. How would you have been able to use a mechanical pump? Did you notch the crossmember where it would hit? It could be done I suppose but my goal was not to alter the car in any way that I couldn't restore it to factory specs by simply bolting the origional parts back on. I'm still using the unaltered factory tpi harness with the wires I don't need simply zip tied and tucked away on top of the trans bellhousing.
Last edited by 86GoldProject; May 21, 2008 at 05:38 PM.
Pro
Joined: Feb 2005
Posts: 560
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From: Hamilton New Jersey
It will run without the pump hardwired if you use the oil pressure switch, the second it sees pressure from cranking the engine the pump starts running, starts right up everytime with a quarter of a crank. No need to hack up the factory wiring at all.
Instructor
Joined: Feb 2004
Posts: 170
Likes: 0
From: SWEDEN 1984 c4 with Edelbrock RPM toppkit
Way too much rubber hose to pass tech inspection, it's considered unsafe. I have my regulator hooked up in a similar fashion except with less hose, and I used steel braided -6an line from earls. Also I ran it from the factory filter up under the blower motor to keep it far away from my headers. How would you have been able to use a mechanical pump? Did you notch the crossmember where it would hit? It could be done I suppose but my goal was not to alter the car in any way that I couldn't restore it to factory specs by simply bolting the origional parts back on. I'm still using the unaltered factory tpi harness with the wires I don't need simply zip tied and tucked away on top of the trans bellhousing.
I have a rollertruckblock from 1990 in my Vette
Melting Slicks
Joined: Nov 2004
Posts: 2,799
Likes: 2
From: Cape Coral FL
Aren't all L98's "glorified truck motors"? (as I've heard here before)
btw... current engine I'm building for my '85 is also a roller truck block (with 4 bolt mains - going .040 over)
oh, and thanks for the kind words about my fuel lines!
btw... current engine I'm building for my '85 is also a roller truck block (with 4 bolt mains - going .040 over)
oh, and thanks for the kind words about my fuel lines!
Pro
Joined: Feb 2005
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From: Hamilton New Jersey
Race Director
Joined: Sep 2000
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From: The Top of Utah
Originally Posted by Stefan Nord
Originally Posted by CFI-EFI
An NHRA tech inspector would wear out his tape measure on that installation.
RACE ON!!!
RACE ON!!!
And that means?
RACE ON!!!
Melting Slicks
Joined: Nov 2004
Posts: 2,799
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From: Cape Coral FL
Safety Car
Joined: Apr 2004
Posts: 4,532
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From: Lahaina Hi
Men are map makers so they can make 1" equal a mile.
You can always get one of these and drop it into your tank.
I also use a Aeromotive fuel controler.
You can always get one of these and drop it into your tank.
I also use a Aeromotive fuel controler.
Last edited by REDC4CORVETTE; May 21, 2008 at 07:09 PM.
Pro
Joined: Feb 2005
Posts: 560
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From: Hamilton New Jersey