Axles, how likely am I to break them?

[sirnixalot]

I am stepping up (down?) to a 15" setup in search of a better 60ft since all we have is a 1/8th strip and that is where I personally need to make up some time. The track surface isn't the greatest but the first 100ft is decent when prepped.

On ethanol I'm in the 700-800whp/600-650wtq range by my best estimations. No functioning dyno here yet and street pulls for virtual dyno are out of the question since the last time I lost traction around 4500rpm in 4th gear, I do not have brown enough pant's to attempt that again.

At what point do the cv joint's/axle give up?

[Spooler]

With those tires, you will need axles for sure. You will need the 1400whp axles. Not the 1200whp axles. They are not cheap either. $3200 to $3500 or so. Make sure you have a diff brace too.
If you don't and break the diff cover it will get expensive quick. It will break the driveshaft and may fubar the tailshaft of your transmission.

[Spooler]

You might want to look at upgrading your driveshaft also.

[sirnixalot]

I have the Z1 cover currently and I was looking into doing the Pathfinder diff cover since it has 2 mounting points and I get to weld.

$3500 for axles is not happening. If that is what needs to be done then I just won't race it anymore.

[Spooler]

Originally Posted by sirnixalot

I have the Z1 cover currently and I was looking into doing the Pathfinder diff cover since it has 2 mounting points and I get to weld.

$3500 for axles is not happening. If that is what needs to be done then I just won't race it anymore.

MA-Motorsports has done the 300zx diff cover with two mounting points. At least do the Bell diff brace and modify it. The 1200whp axles are around $2500 or so. It get's expensive quick on the drag strip. We haven't even talked about the transmission. Input shaft and 3rd gear is a problem.

[Spooler]

That's why you don't see me at the drag strip. Pour money in the front while parts come flying out the back. No thanks.

[sirnixalot]

It’s all we have here so it’s kinda the only place I have to fully appreciate the landmissle. I’m on a 75sq mile rock with a max speed limit of 50mph, no circuit track and until recently no drag strip.

I’m not trying to be cheap but there’s a time when it’s smarter to draw a line in the sand than reach the water not knowing how to swim.

I’ve raised the car up and brought it to the alignment shop with 400lbs of **** in the trunk to get it to full squat to get as close to 0 camber with everything loaded up and reduce the camber gain when launching.

If I can crack a 1.5 60ft without grenading the CV’s I will be just fine with that. I’ve seen what happens when you have a very good clutch time diff and one axle breaks mid track. 99% of the time you’ll break them at the starting line but I’m not about to put my car in a wall because all the power goes to one wheel in a hurry. At launch a driver with enough mechanical empathy and a decent hand brake can preload the suspension to reduce the shock (dunno if I fit that description ��)

I mean this in the most respectful way possible but everyone in this thread so far is just speculating, educated speculation but speculation none the less.

If I find out the hard way I will update with my findings

[Spooler]

It's not speculation. I have seen them all break as I have stated above. So why did you even ask if you don't want to believe what I have told you. It get's ugly quick.

[husam2012]

I've launched my 370Z Nismo with nothing breaking at 600WTQ, all you need is soft tires, preload the drivetrain, and a good diff cover (Stock w/ bushings) or Gktech with dual studs

Swapping to the Z1 Diff Cover, it broke as soon as I launched it on the street, broke my driveshaft, dented my exhaust, and dented my whole subframe. **** companies with shitty products.

With all due respect, no one should comment unless they've actually been to a drag strip while boosted...

[sirnixalot]

You’ve gone through the ringer with your experiences that’s for sure and you’ve been forthcoming and sharing with your successes and “failures” so understand I appreciate your input.

The axles you’ve seen break, are you at liberty to share power level and tire setup?

[Spooler]

He broke them on his 15in tire setup. He broke several of them. He even broke the 1200whp ones.

Wueros tt build

[Spooler]

Nathan that goes to SOHO broke his SOHO diff cover, driveshaft, and trashed the tail shaft of his transmission. He did have the DSS 1400whp axles.

[Spooler]

Originally Posted by husam2012

I've launched my 370Z Nismo with nothing breaking at 600WTQ, all you need is soft tires, preload the drivetrain, and a good diff cover (Stock w/ bushings) or Gktech with dual studs

Swapping to the Z1 Diff Cover, it broke as soon as I launched it on the street, broke my driveshaft, dented my exhaust, and dented my whole subframe. **** companies with shitty products.

With all due respect, no one should comment unless they've actually been to a drag strip while boosted...

LOL, I don't have to do it. I can sit back and watch the carnage with my Popcorn.

[Spooler]

You can break a diff cover on the street NA. SS_Firehawk did.

[Spooler]

As far as input shafts. Well that list is getting long. Let's see. Mr. Squeeze did it on the streets. SOHO, a 900+whp car that MA-Motorsports built broke 2 input shafts, and a couple of more that I don't remember the details of. I am not sure how many transmission SOHO has broken trying to get them to live at the drag strip. Input shaft, 3rd gears out the wazo, and first gear.