[Diy_efi] conversion questions
N Schnell
schnell200 at yahoo.com
Fri Jan 30 05:10:31 GMT 2004
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A good cheap fix for a fuel pump is a Ford truck frame rail pump (not the tank pump). They were used in the late 80's and early 90's. Cheap and durable! Cut the tubing long and use the Ford connectors and pump brackets. I slipped my OEM fuel line and filter over the Ford stubs and welded them together. It was probably the easiest part of the swap. I'm using stock 3/8 and 5/16 lines. I don't have any fuel delivery issues at all.
I swapped a 90 camaro (730) into a 72 GMC 1/2 ton. My TPI was originally a MAF system from a late 80's camaro. Changing the harness around from MAF to speed density is possible, but it takes a bit of work.
Hopes this helps.
clair.davis at charter.net wrote:
Hey, a local guy!
I'm new at this, too, and can't help at all on the drivetrain stuff, but
here's what I'm dealing with on my swap (7730 + TPI -> 340 + 69 Plymouth
Valiant):
Fuel delivery - seems that even a 5/16" line is OK for a return line, I'm
going to 3/8" on the feed. If you've already got a 3/8" feed, you're
probably OK to use that as the feed unless you just want to have a larger
line. I'm planning on using the aluminum tubing from Summit/Jegs and some
AN adapters.
Fuel pump - The pump I have is a NAPA part, if I recall. I suspect it's
actually a reboxed Walbro or something. Here's another local (Garland) guy
that sells fuel system parts:
http://www.autoperformanceengineering.com/
NOTE: you didn't mention it, but you'll probably have some fuel delivery
problems at low fuel levels in your stock tank if you're not planning on
some sort of sump or surge tank. Even some fuel cells have this problem.
There isn't any reservoir in EFI like there is in a carb (bowls), so if the
pressure pump sucks air, it's not pushing anything until it recovers. I'm
looking at a couple different types of surge tanks. Check the previous
posts for the last few weeks for details.
Harness - I'd like to know if there's an adapter for the Vette box, too.
I'll be mounting mine inside the car, but would like to be able to mount it
in the engine bay. Not a big deal, I'm running out of space up there
quickly.
Hope that's some help,
Clair
69 Valiant (among other Mopars)
Fort Worth, TX
----- Original Message -----
From: "Michael"
To:
Sent: Wednesday, January 28, 2004 8:42 PM
Subject: [Diy_efi] conversion questions
> Hi, I am new to the list, and am putting a 91 Vette engine (complete)
> into a 67 Camaro. I need some advice on what all I need to do this.
> Here's my thinking, please giveme pointers (either links to projects or
> reply).
>
> Fuel delivery - I plan to put a 69 Camaro sending unit in my stock tank
> that has a return line, plumb 7/16 line from tank to EFI, and use stock
> 3/8 as return.
>
> Fuel pump - need to know what reccommendations there are for inline
> pump.
>
> Harness - what models o F_body work for the 91 Vette setup? I have seen
> 87 TPI MAF setup, but understand it wont work - what is reccommendation
> here? New Aftermarket units are out of my budget.
>
> Computer - I'd like to use the 727 Vette unit, are connectors that go on
> the 730 compatible, what changes are required to adapt?
>
> Throttle linkage - cabled from later model or Camaro 6-cyl (available
> new)
>
> ENgine relates - I know, this is the EFIlist, but some have addressed
> this I'm sure -
>
> I am planning to use the stock 91 vete flywheel with my orig muncie and
> bell housing - what is required to adapt the original style to the later
> model flywheel / one piece rear seal? Can I use original style 10-1/2
> clutch?
>
> Thanks for any help in advance.
>
> Michael H.
> North Richland Hills TX
>
>
>
> _______________________________________________
> diy_efi mailing list
> diy_efi at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>
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<DIV>A good cheap fix for a fuel pump is a Ford truck frame rail pump (not the tank pump). They were used in the late 80's and early 90's. Cheap and durable! Cut the tubing long and use the Ford connectors and pump brackets. I slipped my OEM fuel line and filter over the Ford stubs and welded them together. It was probably the easiest part of the swap. I'm using stock 3/8 and 5/16 lines. I don't have any fuel delivery issues at all. </DIV>
<DIV> </DIV>
<DIV>I swapped a 90 camaro (730) into a 72 GMC 1/2 ton. My TPI was originally a MAF system from a late 80's camaro. Changing the harness around from MAF to speed density is possible, but it takes a bit of work.</DIV>
<DIV> </DIV>
<DIV>Hopes this helps.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><BR><BR><B><I>clair.davis at charter.net</I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hey, a local guy!<BR>I'm new at this, too, and can't help at all on the drivetrain stuff, but<BR>here's what I'm dealing with on my swap (7730 + TPI -> 340 + 69 Plymouth<BR>Valiant):<BR>Fuel delivery - seems that even a 5/16" line is OK for a return line, I'm<BR>going to 3/8" on the feed. If you've already got a 3/8" feed, you're<BR>probably OK to use that as the feed unless you just want to have a larger<BR>line. I'm planning on using the aluminum tubing from Summit/Jegs and some<BR>AN adapters.<BR>Fuel pump - The pump I have is a NAPA part, if I recall. I suspect it's<BR>actually a reboxed Walbro or something. Here's another local (Garland) guy<BR>that sells fuel system parts:<BR>http://www.autoperformanceengineering.com/<BR>NOTE: you didn't mention it, but you'll probably have some fuel delivery<BR>problems at low fuel levels in your stock tank if you're not planning on<BR>some
sort of sump or surge tank. Even some fuel cells have this problem.<BR>There isn't any reservoir in EFI like there is in a carb (bowls), so if the<BR>pressure pump sucks air, it's not pushing anything until it recovers. I'm<BR>looking at a couple different types of surge tanks. Check the previous<BR>posts for the last few weeks for details.<BR>Harness - I'd like to know if there's an adapter for the Vette box, too.<BR>I'll be mounting mine inside the car, but would like to be able to mount it<BR>in the engine bay. Not a big deal, I'm running out of space up there<BR>quickly.<BR>Hope that's some help,<BR>Clair<BR>69 Valiant (among other Mopars)<BR>Fort Worth, TX<BR><BR>----- Original Message ----- <BR>From: "Michael" <MICHAELP.H at CHARTER.NET><BR>To: <DIY_EFI at DIY-EFI.ORG><BR>Sent: Wednesday, January 28, 2004 8:42 PM<BR>Subject: [Diy_efi] conversion questions<BR><BR><BR>> Hi, I am new to the list, and am putting a 91 Vette engine (complete)<BR>> into a 67 Camaro. I need some
advice on what all I need to do this.<BR>> Here's my thinking, please giveme pointers (either links to projects or<BR>> reply).<BR>><BR>> Fuel delivery - I plan to put a 69 Camaro sending unit in my stock tank<BR>> that has a return line, plumb 7/16 line from tank to EFI, and use stock<BR>> 3/8 as return.<BR>><BR>> Fuel pump - need to know what reccommendations there are for inline<BR>> pump.<BR>><BR>> Harness - what models o F_body work for the 91 Vette setup? I have seen<BR>> 87 TPI MAF setup, but understand it wont work - what is reccommendation<BR>> here? New Aftermarket units are out of my budget.<BR>><BR>> Computer - I'd like to use the 727 Vette unit, are connectors that go on<BR>> the 730 compatible, what changes are required to adapt?<BR>><BR>> Throttle linkage - cabled from later model or Camaro 6-cyl (available<BR>> new)<BR>><BR>> ENgine relates - I know, this is the EFIlist, but some have addressed<BR>>
this I'm sure -<BR>><BR>> I am planning to use the stock 91 vete flywheel with my orig muncie and<BR>> bell housing - what is required to adapt the original style to the later<BR>> model flywheel / one piece rear seal? Can I use original style 10-1/2<BR>> clutch?<BR>><BR>> Thanks for any help in advance.<BR>><BR>> Michael H.<BR>> North Richland Hills TX<BR>><BR>><BR>><BR>> _______________________________________________<BR>> diy_efi mailing list<BR>> diy_efi at diy-efi.org<BR>> http://lists.diy-efi.org/mailman/listinfo/diy_efi<BR>><BR><BR>_______________________________________________<BR>diy_efi mailing list<BR>diy_efi at diy-efi.org<BR>http://lists.diy-efi.org/mailman/listinfo/diy_efi</BLOCKQUOTE><p><hr SIZE=1>
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