dragstrip today,, starting line 1- driveshaft-0
- Thread starter 409 lever
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Ooouuuccchhhhh
I hate it when that happens
I think you want to have your drive shaft guy look a ford truck slip yoke stuff to put in the center.
critical speed of a one piece 60'' long driveshaft, 3 '' is 4130 is 4787 rpm, 3 1/2'' 4130 is 5566 rpm. these options seem weaker than a two piece. a 4'' mild steel will get me to 6306 rpm I think that would require some major modification to get to fit in a X frame car, don't know if a 3 1/2'' will work very easily.
Don't mean to step on toes but....real race cars don't have two piece drive shafts for a reason. There are better materials for a drive shaft than mild steel...that said we ran mild steel in the early days with the 62...3 1/2" to probably 7200 Later went to carbon fiber and ran it to 9000. We're currently running a 3 1/2" aluminum to nearly 9500...but to quote a friend..."if it was easy monkeys would do it"...good luck with the project!
Are talking about drive shaft RPM or engine RPM?
My Inland Empire 2 piece shaft has 125 plus runs on it, plus street miles. I run a real aggressive 6 puck clutch, 28x0.50x15 ET Drags and pull the wheels on the launch and pulling second. Leave at 4000-4500 and don't think twice about it. Not a race car, but does O.K. I am about 5800 through the the traps. No problems in 3 years.
Drive shaft RPM, is engine RPM, in high gear.
ragtp66
Well Known Member
Don't let the lowrider part fool you this a great piece of information from Inland Empire Driveshafts
http://www.lowrider.com/how-to-tech/transmission-drivetrain/1408-inland-empire-driveline-502-kit/
chris
Interesting
I would not have thought they would cool a weld with water.
Just thinking if I would have my drive shaft guy build one I, we would use a larger center spline and put the slip directly on the front half.
Like a two peace truck drive shaft.
I would not have thought they would cool a weld with water.
Just thinking if I would have my drive shaft guy build one I, we would use a larger center spline and put the slip directly on the front half.
Like a two peace truck drive shaft.
I run a 3.5 chromoly to 6500 and have for years. No failure and no vibration. I think it's 52 inches. Either way, all the experts would say I needed a carbon fibre shaft. Another guy in our group ran the same shaft as me running low 9s and his was even longer turning 8000 with zero failure. I think the issue
Is steady state rpm vs accelerating.
Is steady state rpm vs accelerating.
from the tip of my output shaft to the centerline of the u joint cup is 61 7/8'' on my car. I made my rear control arms 3/4'' longer to gain clearance on the front side of the tire to quarter panel. 60'' long one piece, is a long assed driveshaft. I really don't want to modify the driveshaft tunnel to run a one piece, but if that is what I need to do I will. what setup does BSL409 run? his car is probably one of the hardest running heavy X frame cars anywhere, I thought he has a 2 piece.
I can remember an old super Chevy article Back in the day......And there was a One piece driveshaft used For a 62 I believe it was the same identical length as a 72 Chevelle.......I guess my point isThe drive shaft from GM was a two piece as a result of the frame design and needing the clearance For the drive shaft throughout the suspension travel, More so than the length of the drive shaft
What dragstrip ? Esta runs on Sundays