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Old May 3rd, 2013, 09:32 AM   #1
86scottsdalek10
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Default 5.0 stall suggestions

I have a 97 explorer 5.0 with gt40 heads an e303 cam edelbrock performer 289 intake and a Holley double pumper which I believe is a 670. It's mated to a stock c6 and first gear is really long with some bog from lack of torque and it hits a flat spot in third gear in mid range(I think from being rich). My question is is a 2400 stall good for this cam and setup? I'm not sure on hp figures but to add to it I have 33/12.50's on it with a 4.88 gear(2wd)
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Old May 3rd, 2013, 09:43 AM   #2
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What do you use it for? Dune runner? How heavy is it?
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Old May 3rd, 2013, 11:46 AM   #3
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It will be used for a few dune trips a year but also tooling around town and quite a bit of dirt road rallying. It's just that its a dog out of the hole as I believe the cam is made for mid to top end performance and there isnt much low end which is probably part of the reason it was geared the way it is. It's roughly 3,000 lbs

Another idea was to possibly throw 4:10s on it to make it a bit more street able since at 65mph its at like 3300rpms I believe
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Old May 3rd, 2013, 12:09 PM   #4
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What is it in, a ranger? I would say 2400 would be the min I would go, myself would proabably put a good 10" converter in it that would be about 3000. I would keep the 4.88's unless you are gonna drive it on the hwy. a bunch.

I would probably ditch the C6 and put a built C4 in it.

What do you have for a dist.? If you can get your advance in quicker it will probably help it run better as well.
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Old May 3rd, 2013, 12:31 PM   #5
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How'd you get it to 3000lbs? Thats a lot of weight reduction. Thats what a 5.0 Fox body weighs. (or is it an explorer motor in a non-explorer?)

If you are doggy now, going to 4.10s is just going to make it worse.

The E303 isn't that agressive, shouldn't be totally midrange torque.

Based on how you feel when you drive it, where to you think you are hitting peak torque? Thats around where you want the stall. 2400 isn't much more than stock. I would think 2800 at least. You need to decide what you want it to be good for.

Its a heavy vehicle, and not that powerful of an engine (It sounds like a stock motor with a carb setup and the cam), for 2wd on the sand.

Make sure your setup is tuned up properly, as that can also be a lot of your issues. Bogging off the line could certainly be in your carb setup.
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Old May 3rd, 2013, 12:34 PM   #6
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Quote:
Originally Posted by frdboy View Post
What is it in, a ranger? I would say 2400 would be the min I would go, myself would proabably put a good 10" converter in it that would be about 3000. I would keep the 4.88's unless you are gonna drive it on the hwy. a bunch.

I would probably ditch the C6 and put a built C4 in it.

What do you have for a dist.? If you can get your advance in quicker it will probably help it run better as well.
Parallels my thoughts. lighter trans = less inertia. lighters Small Dia converter = less inertia.


Could also advance the cam a few degrees for more low end. But I would make sure its all running correctly before just throwing parts at it.
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Old May 3rd, 2013, 02:20 PM   #7
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First of all its a prerunner ranger so it has a stock cab and fiberglass elsewhere. I'm not entirely sure where the peak torque is as of yet but it seems so far that it livens up at around 2500. My understanding was that the stock converter was at around the 1500-1800 range? I have a b&m hole shot 2400 converter sitting in the garage and a stock c6 in it now and I'm sticking with the c6. Ive already got it and it works fine. I'm simply asking for suggestions on the stall lockup speed. Drivetrain is already set and another member here has a 2600 TCI stall I was looking at as well

It bogs in the mid range area not from the start(that's because of the stock stall/c6 gearing) maybe from getting to much gas but it is an explorer engine
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Old May 8th, 2013, 09:14 PM   #8
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Sounds like a fuel/carb and/or timing issue to me. THat motor setup correct should be real peppy and rev happy.
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Old May 9th, 2013, 06:57 PM   #9
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I agree with you about it being fuel/carb related and I think it just needs a stall for that first gear being slow out of the hole
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