Drive axle strength

[Fast_kat01]

Not sure if this is the place to ask this. But im budgeting to get a 3l and 3lduratec.com supercharger kit and was wondering if the drive axles are strong enough to support all the added power from the supercharger on slicks and a stage 3 clutch again not sure if i was supposed to post this here or the transmission section

[jaged]

slicks for drag or for autox?

for autox you are good, i run them all the time. for drag you *should* be ok, just depends on how you dump the clutch and how sticky the track is

[Beans]

Of course you can run it.. but the chances of it breaking are very high.. i know of 3L SVT's who dropped it @ 2k and broke a axel

[Fast_kat01]

it is a drag track and its well set up i mean i hook up well on street tires and the little mods i've got dropping at about 2500 im worried the with the new parts that im planning on installing and the slicks that the axles won't be able to handle at that torque also is there any way i can get stronger axles as a safety net

[DanG]

It's all about how you drive the thing. I had cheapy Advance Auto reman halfshafts in my turbo 3L for 2 years before I sold it- Nary a problem. Then again, I didn't go slamming gears or drag launching. Smooth engagement of the power is fine, even if it's putting over 400hp out of the crank. But the first time you shock the drivetrain, the weakest link is going to start degrading, eventually leading to failure.

[Blackcoog]

You'll definitely need a LSD before the axles break. Look into a Torsen or a Quaife. The axles will be the next to go. I'd bring a trailer if you plan to run slicks.

[tony]

OK just to add my 1p/1cent worth lol

i was having the same worry when i was modding my car with the 3l now the problem i had was my drive shafts/axles needed to be shortened

now the ones i had made are good for 600bhp so thay say and cost £700/$1300 not cheep

but the biggest problems not-the shaft it was always going to be the drive joint/CV joint

so I'm assuming that will be the weakest link for you to .........

hope that helps

[Blackcoog]

Actually when the axles snap it normally isn't the joint. A few have posted up pictures of the axles snapping right at the spline leaving the end of the axle stuck in the transmission. I don't believe anyone has had a joint issue.

[Topik]

Joint faillure is usually only high hp/tq applications. Your correct as the splines is usually where failure occurs.

[CougarGuy1802]

okay. iv broken 13 half shafts. i have put my u joint into about 8 pieces and had the worst vibration imaginable goin on. id say prolly 5 of my axles were due to joint failure if not more. but this last one was the funnest id say.


oops - CEG Forums (http://contour.org/ceg-vb/showthread.php?t=33167)

[ilovemycar]

Joint faillure is usually only high hp/tq applications. Your correct as the splines is usually where failure occurs.

I have broken 3... two at the splines and one at the joint.

I must add tho... when i broke it at the splines... i was doing FWD donuts in a rainy empty parking lot :rofl: Prolly not very good for the shaft, clutch, motor, etc. But then again running a 125 shot prolly wasn't either.

[Naturaltal3nt]

lol jesus 4-5 grand dump wtf man :rofl: did you actually think nothing was gonna break lol

[Blackcoog]

lol jesus 4-5 grand dump wtf man :rofl: did you actually think nothing was gonna break lol

Yeah WTF obviously you were trying to break something if you drop the clutch from 4-5k. :rolleyes:

[Fast_kat01]

well me and the wife talked it over, and decided we're gonna build for autox. we found an old 87 camaro we'll start building up for drag thanks for the help guys

[Topik]

okay. iv broken 13 half shafts. i have put my u joint into about 8 pieces and had the worst vibration imaginable goin on. id say prolly 5 of my axles were due to joint failure if not more. but this last one was the funnest id say.


oops - CEG Forums (http://contour.org/ceg-vb/showthread.php?t=33167)


Must be a ford thing................ or unnecessary abuse.

[ilovemycar]

Must be a ford thing................ or unnecessary abuse.

I think the second portion of your statement would be entirely true.

[CougarGuy1802]

i suppose you guys think im just some dumn kid. but a 5500 drop nets me a 2.2 60 foot time with minimal wheel spin. that is the sweet spot for my set up. you must realize you have to pay to play. besides i enjoy a little destruction. you will never hear me say oh dang look what i did now. everything i do is my own fault. but dangit i have fun doin it :)

[Fast_kat01]

a 5500 drop nets me a 2.2 60 foot time with minimal wheel spin. that is the sweet spot for my set up. you must realize you have to pay to play. besides i enjoy a little destruction.

i drop at 2500 with now wheel spin and average a 2.4 60 foot.... and keep my axles i'll take the .2 lose in time for the sake of not forking out a bunch of money on axles

[ilovemycar]

i suppose you guys think im just some dumn kid. but a 5500 drop nets me a 2.2 60 foot time with minimal wheel spin. that is the sweet spot for my set up. you must realize you have to pay to play. besides i enjoy a little destruction. you will never hear me say oh dang look what i did now. everything i do is my own fault. but dangit i have fun doin it :)

Calm down and correct yourself... i'm not you guys. I didn't say you were a dumb kid. But yes... there is a better way to drive and get a 2.2 60ft. Slip the clutch a little to keep it from boggin... and then floor it.

[Naturaltal3nt]

Calm down and correct yourself... i'm not you guys. I didn't say you were a dumb kid. But yes... there is a better way to drive and get a 2.2 60ft. Slip the clutch a little to keep it from boggin... and then floor it.

yessir your right!

[CougarGuy1802]

i wasnt worked up at all. lol. i just drive my car the way it feels best for me. i assure you she loves a little abuse :)

[Blackcoog]

I pulled a 2.1 60' NA. Slip the clutch out at 3k gradually to get the most traction possible.

[CougarGuy1802]

excellant ^

what did you have done to achieve that 2.1? i just have a safc tune, opt stock throttle body, gutted precats and half a trubendz kit made into a sidepipe(although it was complete at the time) and of course torsen, spec 1, and kdw2s. infact a dont even think i had the safc at the time, its been awhile.


my car doesnt really have enough power to wanna launch it lower, it just bogs for me. iv tried all sorts of different techniques and this works on my car at this point. although when i do my powertrain swap in the upcoming months this whole car is gettin changed around. :evil:

[morbid]

i suppose you guys think im just some dumn kid. but a 5500 drop nets me a 2.2 60 foot time with minimal wheel spin. that is the sweet spot for my set up. you must realize you have to pay to play. besides i enjoy a little destruction. you will never hear me say oh dang look what i did now. everything i do is my own fault. but dangit i have fun doin it :)

With my n/a 2.5L, I got a 2.097 60' without dropping or slipping the clutch (not even tire spin)... just a "normal" start at around 2000-2300 rpm. I think my smaller (than OEM) diameter tires contributed to that.

[CougarGuy1802]

thats awesome ^