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Re: Need schooling on fuel injection [Re: B3422W5] #2553776
09/23/18 07:16 PM
09/23/18 07:16 PM
Joined: Jan 2003
Posts: 2,070
Taylor, Michigan
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1BadLiLCharger Offline
top fuel
1BadLiLCharger  Offline
top fuel
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Joined: Jan 2003
Posts: 2,070
Taylor, Michigan
Don, just see what the guys who are consistently winning the big bracket races are doing. You know the heavy hitters at 131, take a survey. The thing I notice with some of the people I know, methanol.

Re: Need schooling on fuel injection [Re: 1BadLiLCharger] #2553811
09/23/18 08:29 PM
09/23/18 08:29 PM
Joined: Jan 2003
Posts: 11,701
Portage,michigan
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B3422W5 Offline OP
I Live Here
B3422W5  Offline OP
I Live Here
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Joined: Jan 2003
Posts: 11,701
Portage,michigan
Originally Posted By 1BadLiLCharger
Don, just see what the guys who are consistently winning the big bracket races are doing. You know the heavy hitters at 131, take a survey. The thing I notice with some of the people I know, methanol.


Most if not all are carbs.
Probably more involved with FI to bracket race than i might want to deal with.
Interesting hearing everyones thoughts. Very good information.


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Need schooling on fuel injection [Re: B3422W5] #2554566
09/25/18 04:36 PM
09/25/18 04:36 PM
Joined: Jan 2005
Posts: 3,629
Oakland, MI
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dizuster Offline
master
dizuster  Offline
master
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Joined: Jan 2005
Posts: 3,629
Oakland, MI
I'm not 100% sure that EFI is more consistant then a carb.

Anything is going to change HP with weather changes (EFI or Carb). As long as you have a way to predict that and change the dial in accordingly, that's what's matters most.

So if an EFI motor automatically corrects fuel curves for a big air swing, is that really better? Or does that just mean you're going to have to move the dial in further then usual?

If you were going to index race, I could see where being able to have timing curves adjust for weather conditions as advantagious. That way you didnt' have to move throttle/timing/shift points/weight around to hit the number. But that seems like a lot of work, and probably YEARS of data collection before you could do that well.

I can tell you my scat pack challenger is absolutely horrendous to bracket race with. Couldn't run a consistant number to save it's life over the 70-80 passes I've put on it this summer.

But in all fairness, that is a lot more complex system then what we're talking about here...so not really apples to apples.

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