Where has my 60ft gone??
Where has my 60ft gone?? Well full suspension has been added to the car and now can 60 worth a crap. When I had complete stock suspension with only Eibach pro kit front springs, i cut constant 1.51 60fts at a heavier raceweight and less HP and TQ. Now I have all suspension and more pwr and cant get below a 1.57 60ft. Here is what i have suspension wise:
BMR upper and lower A arms
BMR K member
BMR Boxed lower control arms
BMR subframe connectors
BMR Extreme Drag Bar
QA1 F series shocks all around with 300lb springs upfront (fronts +3 rears +7)
UMI Adj. Torque Arm (chassis mounted ) set at -2 pinion angle
UMI Torque Arm Relocation kit
Im running 28x10.5x15S ET drags now compared to the 28" ET street I had back then but dont think that has anything to do with it. Car feels like its dead hooking and leaving straight I know it dont help without video but here is a couple of pics of it launching. The only thing i can think of that might be hurting the 60 is im not sure how the dragbar is suppose to be set up, but like i said it leaves straight. Only other thing I think it might be is shock settings.
because ive tried moving the pinion angle from -1 all the way to -4 with no affect on the 60ft. Im launching at 6000rpm 
BMR upper and lower A arms
BMR K member
BMR Boxed lower control arms
BMR subframe connectors
BMR Extreme Drag Bar
QA1 F series shocks all around with 300lb springs upfront (fronts +3 rears +7)
UMI Adj. Torque Arm (chassis mounted ) set at -2 pinion angle
UMI Torque Arm Relocation kit
Im running 28x10.5x15S ET drags now compared to the 28" ET street I had back then but dont think that has anything to do with it. Car feels like its dead hooking and leaving straight I know it dont help without video but here is a couple of pics of it launching. The only thing i can think of that might be hurting the 60 is im not sure how the dragbar is suppose to be set up, but like i said it leaves straight. Only other thing I think it might be is shock settings.
because ive tried moving the pinion angle from -1 all the way to -4 with no affect on the 60ft. Im launching at 6000rpm Last edited by FigsZ28; Sep 20, 2006 at 04:47 PM.
Looks like you have alot of tire pressure in there, not much tire wrinkle. What air are you running in the tires? are the rims screwed, or are you watching for tire spin on the rims?
i usually run about 12 to 13 psi warm, but that day i was running about 15 psi warm the track was really hooking, i marked the tires and did notice a little tire spin on the rim about 2 inchs. I just put screws in yesterday. Ill be heading back out to the track next friday.
Originally Posted by FigsZ28
Well full suspension has been added to the car and now can 60 worth a crap. When I had complete stock suspension with only Eibach pro kit front springs, i cut constant 1.51 60fts at a heavier raceweight and less HP and TQ. Now I have all suspension and more pwr and cant get below a 1.57 60ft. Here is what i have suspension wise:
BMR upper and lower A arms
BMR K member
BMR Boxed lower control arms
BMR subframe connectors
BMR Extreme Drag Bar
QA1 F series shocks all around with 300lb springs upfront (fronts +3 rears +7)
UMI Adj. Torque Arm (chassis mounted ) set at -2 pinion angle
UMI Torque Arm Relocation kit
Im running 28x10.5x15S ET drags now compared to the 28" ET street I had back then but dont think that has anything to do with it. Car feels like its dead hooking and leaving straight I know it dont help without video but here is a couple of pics of it launching. The only thing i can think of that might be hurting the 60 is im not sure how the dragbar is suppose to be set up, but like i said it leaves straight. Only other thing I think it might be is shock settings. because ive tried moving the pinion angle from -1 all the way to -4 with no affect on the 60ft. Im launching at 6000rpm
BMR upper and lower A arms
BMR K member
BMR Boxed lower control arms
BMR subframe connectors
BMR Extreme Drag Bar
QA1 F series shocks all around with 300lb springs upfront (fronts +3 rears +7)
UMI Adj. Torque Arm (chassis mounted ) set at -2 pinion angle
UMI Torque Arm Relocation kit
Im running 28x10.5x15S ET drags now compared to the 28" ET street I had back then but dont think that has anything to do with it. Car feels like its dead hooking and leaving straight I know it dont help without video but here is a couple of pics of it launching. The only thing i can think of that might be hurting the 60 is im not sure how the dragbar is suppose to be set up, but like i said it leaves straight. Only other thing I think it might be is shock settings.
because ive tried moving the pinion angle from -1 all the way to -4 with no affect on the 60ft. Im launching at 6000rpm I know this has nothing to do with your thread, but man you have a sweet car!! I wish mine left like that!
Originally Posted by greatwhitess
try setting the shocks to 2 in the front and 4 or 5 in the rear
Not doubting your opinion, but what is your rationale behind these numbers? are these just out of your head, or is there a method to this suggestion?
If i lower the rears down to say 5 or so the car starts to squat. At 7 I have little to no squat. I try to do minor adjustments to the shocks at the track but at times I just run out of time by the end of the night. Next week Ill start at 7 rears as the track is usually very sticky and work my way softer on the fronts to see it that helps. As of late ive only been messing with pinion angle.
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Your car looks like it is leaving good!
I think that you maybe running the rear shock to stiff.
I find 4 to 5 work best for me.
As far as the tires MT 28x10.5x15S I like them around 14 to 15psi hot.
I 60’s in the low 1.51 to 1.55 with 4.56 gears
What gear are you running?
Bob
I think that you maybe running the rear shock to stiff.
I find 4 to 5 work best for me.
As far as the tires MT 28x10.5x15S I like them around 14 to 15psi hot.
I 60’s in the low 1.51 to 1.55 with 4.56 gears
What gear are you running?
Bob
When i was cutting low 1.5's (stock suspension) i was running 4.10's . I just recently put in 4.33's to help me out of the hole because my car is a pig it tips the scales at 3800lbs in race trim, I have no wieght removal other than the BMR k-member.