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Author Topic:   Getting out pulled on straightaway.
slater00
Dirt Maniac

Total posts: 147
posted April 08, 2005 09:23 AM  
I'm turning about 7100rpm and about 1/4 away on the straight they are running off. I got 5th last weekend but I need more.

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stew6371
Dirt Full Roller

Total posts: 38
posted April 08, 2005 09:58 AM  
sounds like they just have more power. what track do u run at

BIGDADDYBOZ
Dirt Freak

Total posts: 466
posted April 08, 2005 10:41 AM  
What class and what cam do you have?

slater00
Dirt Maniac

Total posts: 147
posted April 08, 2005 10:50 AM  
Street stock 500hp,shouldn't be problems there, you wouldn't think.

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dirtbuster
Dirt Forum Champ
Total posts: 2007
posted April 08, 2005 11:52 AM  
Do you gain on them coming out then lose them or is it even off the corner and then they start to pull away?

slater00
Dirt Maniac

Total posts: 147
posted April 08, 2005 01:38 PM  
going in and coming out I do ok,it's just that little part I need.

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Eljojo
Dirt Forum Champ
Total posts: 968
posted April 08, 2005 04:04 PM  
Take a little gear out of it, You are probably running above the power band.

iowa_dirt_track_girl
Dirt Freak

Total posts: 461
posted April 08, 2005 06:54 PM  
How big is your track and what is your curent gear? also whats the range of your cam?
Like Eljojo says i think you have too much gear if you are getting them in the middle of the corner and off then you are running out of gear (running out of pull on the motor) in other words you are turnning rpms but not going anywhere if you just let the motor lug a little comming off then you should be able to get them down the straight and going in!

Steve Dupree
Dirt Freak

Total posts: 316
posted April 09, 2005 06:40 AM  
Well we have had that same problem are car is as fast if not faster than every car on the track from the appex out never been passed there yet and it pulls the best of them but have had many pass me at the end of the straight. Are problem was a little different because we just couldnt get the rpms up there. Well we run a class that we have to run a cast two barral and radial tires with 9.5 compression but the chevys in are class can turn 6800 with ease. Well we were heavier so we took all we could out of the car and it made a big difference last race we were turning 5800 with ease and the car was alot better and before that we were only turning like 5100. Now we also checked are headers and found another problem and got are new ones in yesterday. We had 1 1/2 tubes on are headers and didnt relise it they started out big but tapered right out of flange. We ordered a set of hooker headers that are 1 5/8 and ill bet that fixes the rest of are problem. I sure hope so i think your problem is to much gear and you are not using any of the torque that you need. Sorry for long post on my part just thought it might help a fellow ford driver if he was having the same problem. Have a good one and the race season is finally hear........ YAHOOOOOOOOOOOOOOOO

flatfoot27
Dirt Maniac

Total posts: 103
posted April 09, 2005 12:36 PM  
Sounds like need to drop them RPM's down to where you are only running a max of 6700. You need to change gears. You want to peak at the end of the straight.

Gene
Dirt Freak

Total posts: 396
posted April 09, 2005 02:31 PM  
I agree with flat foot.

tom waara
Dirt Roller

Total posts: 19
posted April 09, 2005 03:53 PM  
Go on a paved back road with a co-pilot and a "g"force meter, have him take "g"force readings, while sweeping though all rpm ranges this will tell you if your over reving because the readings will drop off sharply after peak Power!

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carver101
Dirt Roller

Total posts: 21
posted April 09, 2005 11:59 PM  
When you guys are suggesting to take some gear out of it, what direction in gear size would that be. Lets say you were running a 3 speed tranny that was one to one, or straight through I think they call it, and your final gear was a 600, would you go up or down in final gear size to take gear out.

Steve Dupree
Dirt Freak

Total posts: 316
posted April 10, 2005 06:26 AM  
Hey Carver you would go down for a higher gear. The higher the no. the lower the gear. Good luck and good racing

iowa_dirt_track_girl
Dirt Freak

Total posts: 461
posted April 10, 2005 08:17 AM  
I would go with a 583 that should drop you 200 rpm try that
A genral rule is for every ten points you drop you lose 100 rpm so going from a 567 to 600 should give 400 rpm more see what iam saying

slater00
Dirt Maniac

Total posts: 147
posted April 13, 2005 07:05 AM  
Come to find out all it was is the timing.

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