madtoy21 said:
Bro..i really need u help to solve my car rear swing problem when lauch...does ur rear chasis ladder improved ur lauching?..bty mine ride celica ta22 with 1jz.
I'll be gratefull if can see more pics of the rear setup...cheers
my car will not running side way anymore after the chasis tuned up. remember long shaft rotation is always anti clock if u view from back of ur car, so when u hold at high rpm clutch kick launch there is alot of force will bring ur car body weight to ur left wheel. to solve tat problem, u need to preload at least 20% of ur body weight to ur driver side. adding weight will cause u lost in horse power, so a pair of drag ladder bars can be tuned to let ur right side axle to lift up the body to get preloading.
the mouth of the ladder bars is important too, all of our street and track chasis always trasfer the weight to ur front wheel when pushing forward. it will help alot of steering control, but for drag is totally different way. adding weight will not help, u need to fully use the axle rotation force to lift up the front chasis for more weight transfer to tyers.
when everything done, is time for testing. try to lauching it with slowly let go the clutch, if u get the grip after car moving forward thats good, but if stay still lauching will get spin too then is time for start adding weight.
i will get more pic to update here after the race, not now. i have to keep some secret cos i had been doing testing and study about drag setup 3 years.
first race , i got seriuos wheel hopping and get 14.7sec in 1/4mile.
2nd race, i tried traction bars. it stop hopping at all but wheel spin at high rev lauching. i run low 14.1sec.
3rd race, i had setup ladder bars , flooding axle and increased my time to 13.2sec.
this year i hope can touch 12sec, i had increased boost and new frame . i added 2 tube bar under my chasis from the ladder bars mouthing to the gear box mouth so i get more solid force pushing car forward. remouth absorber mouthing to new frame to stop the absorber fighting with the ladder bar for twisting different direction. higher fuel tank mouthing to save more weight from chasis but added weight ratio to rear chasis.
any question just ask i will try my best to answer if i understand it.