what is the max hp the stock b-series axle can handle....and it's also in a ef....the axles are not straight....any info will help

 

depending how u lunch it. how much power are u putting down right now.

 

This question ranks right up there with what transmission should I run in my FI setup.....search man. People break stock boxes with 150whp and some last through 800whp setups. Don't drive like a fool, preload, weight of car, alignment, tire size, track prep, launch rpm....the list goes on in regards to factors that affect things.

 

i know a few guys in the kc missouri area went in the 10s on stock axles. probally about 500hp as long as ur easy on the launch and preload the hell outta them. i make close to 600hp and i couldnt every get outta the hole unless i didnt launch it and eased into the throttle.

 

I've run 9.50s (161.9mph) on stock axles car wieght in at 1970lbs with driver oh and never broke a set either!

 

At around 300whp on slicks I started breaking axles.

 

Got a buddy running oem axles in his 605hp eg, weighs in at 2350 with the driver, on 24.5s, and leaves the line at about 18psi or so at around 7k. He also preloads, it's lasted all year long no issues.

 

like stated earlier, I know guys who have them last at 800, and guys that break them on stock engines. it comes down to the driver, and how the car is set up

 

Stock axles are like fuses for your tranny.

 

And vice-versa I have seen guys with RACE Axles and less than 400hp break axles no problem...its how you drive!

 

I like that, I am going to steal that one just so you know.

 

I've made around 450hp and ran 11.2@129 with stock axles and I've never broken one. Always preloaded. Ran oem for couple years with no problems.

 

Over 100 passes on stock axles. 2437 weight. 630whp. Only time an axle broke is when i let a buddy drive it...i left at 7k rpm, ranging from 14-20psi. Made 630 on 30+

 

Just a hair over 800hp in a CRX here. Due to funds i tried stock axles and gears at a few events. Ive had no luck with either. If im not breaking an axle im breaking gears or diffs

 

this car is on stock axles with 750+whp
it all depends how u drive the car like everyone else is tellin u

http://www.youtube.com/watch?v=mfCNr...layer_embedded

 

Ive had the same stock axles in my car for 4 years now.. In those 4 years i have broken:

1 Diff
1 Ring/pinion
1 2nd gear
1 3rd gear
1 4th gear
2 motors

but in the 600+ 1/4 passes ive had, i havent broken a single axle lol...

It's how you drive!

 

Like i said 800+ hp on 24.5 inch tires here. Im not agreeing with the "its all in how you drive". Even on 600hp cars it has nothing to do with how you drive when your in gear under power and parts break.

What tires are you guys running and how are you launching the car?

 

24.5x9 on a 10"rim if u look at the vid dat I posted dats the proof. Pre load is an important key btw dat pass was gonna be mid 9sec pass on stock axles

 

Ive broken 1 diff at the line. Everything else ive broken under power in gear. Off the line in both 2nd gear and 4th gear. Preloading helps tons, but not after you leave the line.

Props to you guys on the hatch though.

 

I've never broken an axle on slicks. Drag radials over 500whp they broke like toothpicks though

 

well since horsepower is a measure of work this is not really the right question to ask.
real world wtq is more accurate, since the force the axles actually transfer is multiplied by the gear ratio and transmitted to the wheels. For example stock b16 first gear has a total tq multiplier around 14. Therefore the 100 ft/lbs the motor produces is actually around 1400 ft/lbs of tq being transmitted through the axle. with the right, clutch, tire, and chassis setup it is quite possible to brake axles at stock power levels.
its largely how you drive and how much potential for traction the car has.

 

damn james, i didnt know you were over 800hp.

 

i have a buddy that ran stock SOHC axels with about 450whp , going 10.40 on a 22" tire.

The minute he switched to a bigger tire (24.5") he broke them EVERYY pass!

So tires and how well the power is put down to stress the axels plays a role here..

 

lol thats how i think of it.

i run stock (autozone) axles running low 400 hp range. never broke one at the track on bfg 225's.


however, i did break a stock axle in a 120 hp single cam with a 6 puck clutch and bolt ons driving like a dick on the street hammering it into 2nd

 

just so ya know im going 250 shot of nitrous in a fully built lsvtec 84 mm... clutch master 4 puck in a b16 tran or what ya recommend...and like i said it will be in a ef and the axles are not stright....so am i losing my hp the axles can handle....also it will be a 9.5.1 low compression pistons but i still like the comments keep it comming learning post by post