Set-up for better 60' ?

[Pipe Dreams]

     Ok guys, lookin around the site and  think my set-up is really lacking in 60' compared to alot of others. Granted I need more test passes to see what the car likes, but just wondering what you guys thinks for basic set-up and and how close or far off I may be.
   Here is my setup so far.
170" wb flexable flyer, motor set 30" out 
1583 lbs w/ driver  18/82  front to rear weight bias
415 12.8/1 cr smallblock mopar est. 600hp on gas
1.76 shorty glide 5200 stall 8" custom coan convertor
4.30 gears
33x12 m&h set 6.5 psi
35 lbs ballest and 5' single wheel wheelie bar  set at 3"
Launching @ 3800 to 4000 w/ transbrake-per coan
 
 Best 60' has been a 1.22 but averages 1.25 to 1.30' depending on track prep.
Currently converting to injected alcohol.
If any more info needed is needed let me know and any help is great.

 

[Cajuninjector]

Try 6 pounds in the tires. If they have too much pressure, it will try to dead hook and that's not good for 60' times. You need wheel speed off the line to keep those rpm's up and not pull the motor down. Controlled tire spin is your friend. Do you have a data logger on your car?

[Pipe Dreams]

No, I don't have a data logger on the car. Have run the tire pressure is low as five and a half pounds didn't feel safer going much lower than that.

[Cajuninjector]

Data logger will keep you sane when looking to go faster and it saves you money in the long run. You can play with tire pressure, launch rpm, gearing, etc. to get those tires moving.

[GlennLever]

Data logger will keep you sane when looking to go faster and it saves you money in the long run. You can play with tire pressure, launch rpm, gearing, etc. to get those tires moving.

X2 I love my data logger!

[masracingtd1167]

Once you go to injected alky you pick up a lot of tourqe this should make your converter a little looser. I think this will help some . Your tires look a little big . Try to borrow a smaller set from someone . Cajuninjector is right you need wheel speed and from what i have learned a FED need's quite a bit .Keep us posted with your progress.

[Pipe Dreams]

   Had a set of used  31x13 Mickey's on the car when I first ran it. Then went to the 33x12 M& H Nostalgia top fuel tires. 60' times improved almost a tenth with the Bigger softer compound tire. I do think I need more wheel speed though as you guy's have suggested.
   The cars seemed to like low tire pressure and the wheelie set lower to help in get up on the tire. As this Picture shows I am sure that it is dead hooking. It seems to wad the M&H's up pretty good.

[wideopen231]

more air.more rpm and maybe few pounds more on front end to keep it down and not transferring weight. Maybe take weight from rear and add to front 20 lbs or so would be my guess,but that all it is  a guess.

[BK]

 My car is somewhat close to yours.
175 wheel base, Motor out 31, Car is stiff with a torsion bar, Iron head 355 SBC, Injected Alcohol, 182 first gear, 5200 converter, leave around 3,000 rpm, 4.10 rear, 14x32 M Ts, 4lbs air, Tried more didn't help, 76" wheelie bar from axel c/l, Never weighed it, At least 30# on the nose.
 Its gone as quick as 8.45 1.14 60'. But not consistantly. It hits the wheelie bar and unloads the rear tires. I found if I slow it down to 8.60 1.25 60' with a pnumatic cylinder and a needle valve it,s deadly consistant. Good enough to bracket race.

[rooman]

I agree with the comments that a little wheel speed at the launch might be a good idea. On Mark Vaught's car we run the bar around an inch off the ground (6' long bar) and the bar has enough flex that the front wheels are usually about 6" up. If we run the bar too high the car rotates too quickly, any lower and it will smoke the tires before it get up on them.

Roo

[George]

Find a set of Goodyear 2585s. Lightweight grow tire. 12 x 31 x 15. It is much lighter than any other tire in this size. The majority of class legal JR Fuel cars run them.

[Pipe Dreams]

Thanks for all the ideas guys, good things to think about and try when I get the car running.

[wideopen231]

On our funnycar I had clutch set so it would haze  (just short of smoke) the tires at the hit,If it did not it might make it half way thru first before the drivers brian bounced off track from the shake. A FEDE is a lot like funnycar in how it acts due to driver position,except we have more weight on rear which adds to problem.Especailly us older fat guys.

  Problem is if your trying to bracket race a car its hard to get consistent spin amount so that car can print numbers. A loose converter helps a lot from what I have been told.

[slingshot383]

My 165" Woody Gilmore with the 408 injected on alcohol, engine so far back I tickled the bell housing with my feet, loved to launch up on the pipe, 5500 - 6200.  Wheel speed is the key, found the 10.5 slicks work really good on FED's.  If you're wadding the slicks, up the air pressure til you get just 4 wrinkles, and they need to be in front of the axle centerline.  It takes a spotter or a video camera to catch the launch to see what's happening.

[janjon]

 If you're wadding the slicks, up the air pressure til you get just 4 wrinkles, and they need to be in front of the axle centerline.  It takes a spotter or a video camera to catch the launch to see what's happening.

That right there is one xxxx of an analytical statement, food for thought. Fits right in with lately trend for folks to film everything they do, even taking a dump. And I do not mean that sarcastically, I've fabricated a few mounts for cameras on my car to record what happens.