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Author Topic:   Loose in tight off.
imca01
Dirt Roller

Total posts: 18
posted October 01, 2004 10:37 AM  
I am running short straight bar to left side of pinion. Close to bottom on pinion and 6" up on chassis. 750# springs across front, 225 LR and 175 RR. 4-Bar. Car loose in and tries to tighten up in middle on gas but I lose bite off. 700# Spring pull bar. Would a J-bar help and if so where do you run it to keep the car tight? Need Help Thanks.

bambam989898
Dirt Newbie

Total posts: 1
posted October 01, 2004 01:02 PM  
I have almost the exact same set-up as you do, 4 bar left, z-link right, 750 spring in front, 250 left-rear, 175 Right Rear, LOOSE IN, tight in middle, LOOSE OFF -- If I don't baby the throttle. However, I do run the J-Bar and was going to change to a short bar. So maybe the answer is not in the Panhard bar. I started really working on bar angles and stagger. Seems like my car reacts very well to changes in the Left side bar angles. Slow down the angles a little and maybe the car will hook slower but stay hooked longer. Hey maybe we could just trade panhard bars????~~

imca01
Dirt Roller

Total posts: 18
posted October 02, 2004 09:11 AM  
quote:
Originally posted by imca01:
I am running short straight bar to left side of pinion. Close to bottom on pinion and 6" up on chassis. 750# springs across front, 225 LR and 175 RR. 4-Bar. Car loose in and tries to tighten up in middle on gas but I lose bite off. 700# Spring pull bar. Would a J-bar help and if so where do you run it to keep the car tight? Need Help Thanks.


imca01
Dirt Roller

Total posts: 18
posted October 02, 2004 09:19 AM  
Maybe you have found the answer. Straight bar helps but my car wants to back into the corner then have to get on gas too early to straighten car up then loose off. May have too much bar angle. Wouldn't that create alot of roll steer and then get quick bite on the throttle. That may be the loose in tight middle loose off problem. Ready to swap bars when-ever you are.

donslink1
Dirt Freak

Total posts: 318
posted October 03, 2004 04:11 PM  
The car is loose coming in and tight under power. I would try dropping RF spring to a 650#. It will tighten the car up coming in to the corner and it will take some dynamic bite out of the car under power. If you can get in and through the corner better you will have more forward bite coming out

LATE MODEL 9W
Dirt Full Roller

Total posts: 66
posted October 03, 2004 05:35 PM  
How much left rear, too much will make the car loose in and tight off. Left side if to high will also make the car loose in. Could you be fighting multi problems?

dirtywrench13
Dirt Freak

Total posts: 324
posted October 05, 2004 12:24 PM  
TRY PUTTING A LONGER PANARD BAR ON BEHIND THE REAR END.

andykmod
Dirt Freak

Total posts: 351
posted October 05, 2004 02:33 PM  
Try taking some angle out of the panhard-bar by moving it up on the pinion a hole or two,also stiffen up that pull bar spring to atleast a 1050,700 lb is very soft for a for a 4-bar.

imca01
Dirt Roller

Total posts: 18
posted October 12, 2004 09:24 AM  
Thanks for all the suggestions guys. Have a test session coming up shortly and plan on trying just about all ideas. Once again thanks. That's why I like this forum, You can get here and ask questions with-out all the bull. Sreious answers for serious racers!

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