where to start?
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where to start? adj torque arm, bmr cross member w/ diff holes for instant center, adj lca's, adj qa1's at all 4 corners, relocation brackets with lca's in lowest hole (car is lowered) now right now its at -2 pinion anlge,stock placement on cross member and was going to start the shocks at 6 in back, 2 in front. so what should i be looking for when i start trying to tweak this? will be testing it at the track in 2 weeks and want to know what adj im going to need to make when it does certain things. any and all help is appreciatted!
I would put the front shocks at 3 both sides, and put the rears at 5 to start. If the car is rolling over at all (have someone video tape from behind the car) tighten the right rear shock up 1 click. I tried the tq arm in the top hole of the BMR relocation crossmember and didn't like it, I found my car left harder with it 3 holes down from the top. I had the 1 inch spohn bar on my car, it does work pretty good (if you are running the stock style on with no rod ends, stock style poly end links) but you can't preload it any like the rod ended sway bars allow for, so if you find the car rolling over too much you may want to upgrade to a real drag bar. I went with a wolfe, and it has definately helped, my car leaves wheels up about 3 to 6 inches and is level as can be.
Not sure what tire you are on, but that will effect this somewhat as well. If you are on a 28 inch slick, start them off about 13 psi and see what that gets you, you may be able to run a touch more air in them then that, but don't go any lower then 12 because the car will get real unstable like that. If you are running a 275 lb spring it will be even more unstable feeling at that point.
the pinion angle is fine there, but I personally would start it off a little less, you don't ever really want to go any more then -3, so being at -2 you're already almost all the way there. I'd put it at -1 and start there, I played with this some as well this year and found -1.5 on my car worked out the best, putting more in it didn't help any, but it worked better at -1.5 then it did at -1.
Hope this helps some.
Not sure what tire you are on, but that will effect this somewhat as well. If you are on a 28 inch slick, start them off about 13 psi and see what that gets you, you may be able to run a touch more air in them then that, but don't go any lower then 12 because the car will get real unstable like that. If you are running a 275 lb spring it will be even more unstable feeling at that point.
the pinion angle is fine there, but I personally would start it off a little less, you don't ever really want to go any more then -3, so being at -2 you're already almost all the way there. I'd put it at -1 and start there, I played with this some as well this year and found -1.5 on my car worked out the best, putting more in it didn't help any, but it worked better at -1.5 then it did at -1.
Hope this helps some.
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did the 60 ft times drop when u moved the t/a down to the 3rd spot? only thing im worried about with that is my car is lowered. i run the 300lb spring in front and a 28x10.5 et drag for n20 and a 26x10 et drag for n/a passes. last time out i had an aluminum flywheel and 70 less hp on motor. rear shocks at 5, fronts at 3, pinion angle at -2, still on the tailshaft of the tranny, and 16psi in the 26's and this is what it did. (dont mind the rest of the run it lost 2nd gear that pass.
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Verdad Gallardo Yes the 60 foot times did drop some with the mount lower in the mount.
Your car bogged BAD on that run.... the car looks like it needs alot more gear to really run n/a, or launch way higher so it won't fall off so much. Maybe try airing the tires up some, better to have it spin a revolution and hook then have it fall on it's face like that.
I'd put the tq arm in the middle, then you can try moving it up and then try it lower too, see what it likes.
Your car bogged BAD on that run.... the car looks like it needs alot more gear to really run n/a, or launch way higher so it won't fall off so much. Maybe try airing the tires up some, better to have it spin a revolution and hook then have it fall on it's face like that.
I'd put the tq arm in the middle, then you can try moving it up and then try it lower too, see what it likes.
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ya it was bogging bad. the aluminum flywheel was 13lbs. the steel one i replaced it with is 26lbs which should help. i had the 2 step at 6200 so i dont want to go much higher than that. also a 4.11 gear out back.
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What rpm did you leave on that pass? The chassis looked like it left good, until it pulled you down in rpm. I would stiffen the front shock and rev more rpm and drop the bomb should run hard.
if you don't have a mcloud bellhousing on there, please get one. YOu don't want a clutch exploding and taking out your feet. At a minimum, get a kevlar blanket to put over the bellhousing and tranny.
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ya i have a mcleod bell hosuing. and i left at 6200 on that pass but like i said that was with a 13lb flywheel. im now running a 26lb unit and 70 more rwhp on motor.