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Re: Which fuel injection??? [Re: MarkZ] #2731978
01/10/20 09:50 PM
01/10/20 09:50 PM
Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda Offline
5.7L Hemi, 6spd
GoodysGotaCuda  Offline
5.7L Hemi, 6spd

Joined: Nov 2004
Posts: 25,050
Texas
Originally Posted by MarkM
Andy, do you think multiport would be worth the expense when using a manifold with unequal runners like the slant six?


To get the most out of a setup like that, you would want well-defined individual cylinder fuel trims. So that all injectors aren't firing the same amount of fuel at the same rpm/load, since the air going into each cylinder will vary. Typically an engine dyno with multiple o2s setup to tune each cylinder is required for that initial cylinder fuel trim. Otherwise, a typical TBI would get you very far.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Which fuel injection??? [Re: GoodysGotaCuda] #2732070
01/11/20 10:06 AM
01/11/20 10:06 AM
Joined: Jan 2008
Posts: 2,592
None
71rm23 Offline
master
71rm23  Offline
master

Joined: Jan 2008
Posts: 2,592
None
I too, have been looking at converting to EFI for my car (71 RR) and looked at all of the responses. Even before I stumbled on this topic, I've been looking at Holley. Currently, I have a Quick Fuel carb on my 470 stroked and dynoe'd at 600/610. The funny thing is I contacted Tanks Inc and Aeromotive about a tank with the pump mounted in it. Tank said no, they don't have one. Aeromotive emails me saying "Not current and don't see in the future" mad Within a month, Aeromotive has the exact tank with the pump installed up. Thanks AndyF for that link! Holley suggest FR550-510
https://www.holley.com/search/?q=FR550-510

Last edited by 71rm23; 01/11/20 11:34 AM.
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