Thread: Need Help w/fuel pump selection
Results 1 to 13 of 13
LinkBack URL
About LinkBacksHybrid View
-
08-26-2010 10:48 PM #1
CHR Member
- Join Date
- Aug 2010
- Location
- West Pittston
- Posts
- 8
Thanks this is great info!!!!! And a big help.
-
08-27-2010 12:22 AM #2
CHR Member
- Join Date
- Apr 2009
- Location
- watford
- Car Year, Make, Model: 26T Coupe, 32 Roadster, 41 Willys Coupe
- Posts
- 2,363
A slightly shorter answer
My 383 RHS motor made 450 on the dyno and ran very nicely on a Holley blue top for years.
Its aweful lonesome in the saddle since my horse died.
-
08-27-2010 04:40 AM #3
CHR Member
- Join Date
- Aug 2010
- Location
- West Pittston
- Posts
- 8
Is there any harm in using the bigger of the two pumps?They are - 1st. choice 80 GPH with 7.5 PSI With 1/4" NPT Fitting 2nd. is 110 GPH with 6.5-8 PSI With 3/8 NPT Fittings I'm an over kill kinda guy so I would like to go with the bigger pump [in case of improvements in the future]I will be using a press. reg. and a fuel gauge.Will this be ok?
-
08-27-2010 12:14 PM #4
CHR Member
- Join Date
- May 2003
- Location
- Zephyrhills, Florida, USA
- Car Year, Make, Model: '32 Henway
- Posts
- 12,423
If I were going to do that, I would use a bypass regulator that allowed excess pressure/volume to be returned to the tank instead of dead-heading the flow, building heat in the fuel and resistance to wear out the pump.
Originally Posted by 63409ss
-
08-27-2010 03:11 PM #5
CHR Member
- Join Date
- Aug 2010
- Location
- West Pittston
- Posts
- 8
What if I don't have a return line? [Stock 79 corvette I'm not sure, I haven't taken it apart yet] I guess I'll have to install one.Would I be better off just going with the smaller pump? Will I need a pressure reg. with the smaller pump?
Thanks for your help
-
08-27-2010 05:53 PM #6
CHR Member
- Join Date
- May 2003
- Location
- Zephyrhills, Florida, USA
- Car Year, Make, Model: '32 Henway
- Posts
- 12,423
OK, I'm saying you should have 6 psi at the carb inlet, 6 1/2 absolute max. You're saying that the first pump puts out 7 1/2 psi. Do you think that will work without a regulator? If so, please explain your logic.
-
08-27-2010 06:01 PM #7
CHR Member
- Join Date
- Aug 2010
- Location
- West Pittston
- Posts
- 8
Wow Tuff crowd. I read this to quickly I see your point I will need a reg. with either pump.I looked at Summits site and can't find any bypass regulators that will work with a mechanical pump Holley has a bypass reg. for carb. but in the notes it says not to be used with mech. pumps.Do you know where I can find one?Do you think the smaller pump will work with this engine [383 340 HP]and how far will it go [HP] before it's not going to be enough.
Thanks
Reply With Quote
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
i've enjoyed the years here . made a lot of friends. most who have left. i see no reason to continue with this so hope to see you somewhere else. i dont think this site will ever be back. it's lived...
Dead!