stock 5.9 magnum gives surprise in bracket car

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71gtdart

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short run down. friends son had a duster bracket car with a 7.00 360 in it. he hurt the motor, and they were looking for a stock motor just to keep him racing until they rebuild.

I had a junkyard magnum from a 94 truck with 121,000 miles on it. told him I would lone it to him until they got the other engine rebuilt. never heard it run but it was supposed to be a good running engine.

he took it home and looked at the bearings. he said they looked great and the cylinders were not worn. the engine was very clean with no sludge. he put a melling timing chain and oil pump in it for insurance.

now, the only mods he did was ordered this intake http://assaultracing.com/?wpsc-prod...m-air-gap-dual-plane-aluminum-intake-manifold


and put his headers on it from the old engine. used a holley carb, and I didn't ask what size.

just intake, headers, and carb. everything else was bone stock. he used a stock stall converter not a hi performance deal.

car went low 8.20's in the eigth mile with the secondaries on the carb unhooked. it would stumble in the pits if he stopmed it to make the seconderies open. with little time to work on it before practice, his dad just unhooked them and run it on the 2 barrell.

I think the car has a 4.30 gear in it, but it still has the back seat plus a cage in it.

I thought that was pretty good for a stock production truck motor. it even picked up the left front tire about 2 inches. it would leave hard for the first 15 feet then nose over and start climbing in speed little by little. thats that low rpm torque cam that was meant for the trucks I guess.

they plan to put their e85 carb on it and go to test and tune this thursday. a high 7 second pass would not surprise me by doing that.
thought you guys may find that interesting.
 
Thats good info. Thanks for sharing that. Please keep us informed on any other progress of this engine.
 
These engines can surprise you. Keep us informed,if you would.
 
They put a different gas carb on the car, and with the secondaries in play this time, the car went 8.14 to 8.18 during the late summer to early fall.

a few weeks ago they went to the big money footbrake race at Piedmont Dragway in NC. They threw a methanol carb on it and it went low 7.70's.

not bad for a stock truck motor.
 
Any idea what the car weighs with driver? Pretty impressive numbers.
 
not sure about the weight.

driver weight is about 160lbs if that. The car has never been cut anywhere. It has 2 racing seats in the front, and still has the rear seat in it. It has a 6pt roll cage in it. It still has the steel hood and deck lid on it. Has a bolt on six pack hood scoop, and weld wheels. runs a 28-9-15 tire, I believe.

I would say it weighs 3000 to 3200 lbs with the driver?
Not sure, I'm just guessing.
 
Short block must have been built on a Monday at the factory. Very impressive performance.
 
Short block must have been built on a Monday at the factory. Very impressive performance.


LOL, it must have been.

I would like to be clear about one thing, though.

Running it on methanol is the ONLY reason that the car ran in the 7's with the stock magnum. That 7.73 was in killer weather conditions as well. the norm for it after the methanol switch was high 7.70's to low 7.80's. I know this is the racers forum and most here have been around methanol.
However, for the guys who don't know much about methanol, it's FAST!

It depends on the set up, but switching a car from gas to methanol will normally pick the ET up from 2-6 tenths of a second. From my experience, the slower the car is, the more ET it will pick up when switched. I can't say why, but that's been my experience.


Just felt the need to put that out there for those who may be looking on, and not know.

I felt like the car would go 8.60's to 8.80's with the stock motor on gas. I was really shocked to see it go 8.20's on the 2 barrel, and end up going in the teens with a good carb on the 4 barrel.

This whole experience has been enough to make this ol' boy start grabbing up 5.9 magnum engines when I run across one reasonable. May even grab one or two 5.2 magnums. they would be decent bracket motors with a 4 inch crank and 390 cubic inches.



I have also found out that the car has 4.10 gears in it and not 4.30's like I had thought.
 
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