Drag Racing Discussions > Front Engine Dragsters

looking for ideas

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THE FRENCHTOWN FLYER:
curly, I think you meant to say it had to have all the weight on the rear wheels.

masracingtd1167:
Sounds like you are very close to where you need to be ! I run the same tire and wheel size on my car and it has worked very well for me ! You could try to go up a little on air pressure and it will kill a little wheel speed ! I run mine at 6 lbs most of the time unless the track is really good and then I will drop the pressure to 5 1/2 or 5 3/4 to get a little more wheel speed !Like Dave and Curly said you might have to move some weight around forward or backward ! Good luck !

masracingtd1167:

--- Quote from: Curly1 on October 26, 2018, 08:18:45 PM ---What is the wheelbase and front end weight? I think that is the key on these things because it has to have all the weight on front wheels when it leaves or t will unload the rear tires.
Now I am new to a front engine dragster but I think that is the key. I think you need to carry front wheels out a ways to make it work in my opinion.

--- End quote ---
   Curly That is a very good point ! 

Mrs Esterhouse:
Thank you everyone for responding

JrFuel Hayden:
What rim width are you running with your D2585's ?
Most of the NHRA Heritage JF cars run that Goodyear, including our JF B car. We ran 10" rims for lot of years, until I made more power , then needed 11" when we needed more traction in Bakersfield in the final when the sun went down, and the track cooled off. And when I made more power we went to the class limit on width 12" . BTW the Goodyears grow the most on the 10" rims.
We mostly run 6lb pf pressure , but when I'm looking for more tire speed I lower the pressure 1/4 to 1/2 lb. We have tried GY 33x12 tires for acouple of races, still not better ET's yet. But at the Heritage in Sacramento we had such bad tire shake we crossed the centerline All because of dead hook, because the track ran Jet cars before us and over prepped the track . if I was smart and quick enough, I would have told our crew to lower the tire pressure 1/2 lb after seeing Don Enriquez have bad tire shake in the same lane just in front of us, to get more tire speed.
The tire shake was so bad it twisted both axles, and cracked a cross member.
Another thing we ran into,, our car weighs 1450 lb with driver, and 325 lb of front end weight, and we were racing in Bakersfield a few yesrs ago running low 7.0's on our 11" rims, and another racer was running 11" rims too, but he was having traction problems, so I offered to let him use my mounted 2585 on my 12" rims , he ran a 7.03, but when we reached the final, he said I suppose you want you wheels/tires back, and I said as a matter a fact yes , because we were getting loose about 800'., cold and higher dew pt track.
Now the rest of the story , the other racer built his own super light JF car weighing 1355 lb, with driver, but his front end weight was the same as ours, so that means his car was 95 lb lighter than our car in the rear = less weight on the slicks .
My lesson is if we dead hook, tire shake, check axle twist and check complete chassis, altho when we have had tires shake in the past that we checked  our chassis, it was only in the front , even tho you would think it would be in the rear.

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