|
#1
|
||||
|
||||
A833 capabilities.
I've been asked this and would appreciate some assistance in answering:
Quote:
|
#2
|
|||
|
|||
Well Ray,Ronnie Sox(Mr. Four Speed) hammered the 833 and he was running pretty fast(10 seconds in 65 A/FX and down to 7's 1995).
|
#3
|
||||
|
||||
Thanks, Shaun... but was it an 18-spline or 23-spline box?
Will try phoning you again soon. |
#4
|
||||
|
||||
Quote:
Dug this up and it confirmed my hunch that the one I had in my first '65 was hemi like internally! "Chrysler engineers decided that Hemis required a beefier input shaft so the standard 23-spline shaft was replaced with a beefier 18-spline unit and a larger input bearing was used to accept the additional torque. Later Chrysler decided that the high performance 440s needed this beefiness as well. It is one of a few aspects that set the "Hemi" four speeds apart from the standard 4.35" A-833s as being extra beefy. As far as strength is concerned, outside of the input shaft, the input bearing, the retainer and some special gear sets, there were no additional measures added to A-833s for Hemis. In the Sixties the only other difference between a Hemi A-833 and a Slant Six A-833 were the gear ratios used. The Slant Six 4-speed is just as beefy as the Street "Max Wedge" V-8 units." although generally a higher count spline indicates a larger surface area and better strength, the 18 spline was a very course deep spline and it was truly stronger and the addition of the larger bearing carrier up front made a Hemi box a hemi. Add the ball and trunion rear section and youll get a 3rd bearing, making it the strongest "stock" A833. Course you could go all out and get the beefed up internals from someone, making it 600 HP worthy, although the 440's were putting out 490 Ft/lbs stock and the torque is going to kill the trans, not the HP. |
#5
|
||||
|
||||
Actually there is a difference of some significance in the cutting of the gears... 18-spline vs 23-spline.
The guy now tells me he competes in 'Targa' rallies and that they're hard on boxes. Wonder how that compares with drag racing every weekend? |
#6
|
|||
|
|||
If he is doing rallies he should'nt be dipping into first that much, so wouldn't some of the initial grunt of torque that kills manuals be taken away in most of his shifts? Just a thought. He could get a bell housing that accepts a stronger tranny, but thats more $. Also what did the trans am cars use, they were small blocks? They had to be under the same kind of stressfull conditions that this guy is going to be racing under.
|
#7
|
||||
|
||||
Surely they had to use the A833...
Again, possibly the 18-spline, but I don't know. |
#8
|
||||
|
||||
hello, for what it's worth, I have a 23 spline 3.09 833 in my 340 duster. it has been in there since 1979, raced all time. it has been slick shifted, use synthetic gear oil. this car dead hooks and has ran 11.40's @3400 #weight.
there is 2400 + runs on it. in those passes's have replaced input and cluster gear twice, 2nd gear once, and just last year replaced 1 st gear. the trans is very tough, will take a lot of use. I found,use synthetic gear oil in it, it helps. I have ran mobil 1, conoco synthetic, both are excellent oils. just food for thought. by the way, never have twisted or broke input shafts. the teeth on input and cluster is what failed. |
#9
|
||||
|
||||
Thanks, that's great...
What horsepower were you putting through it, and in which gear were you each time the primary drive (input/layshaft) stripped? And do you have the busted input and layshaft lying around? |
#10
|
||||
|
||||
hello, one time was on the launch, other time was on 1-2 shift. clutch style and pressure is critical for long life in this trans. I saved one input, use it for alignment of disc.
|
#11
|
|||
|
|||
so what clutch and pressure plate do you use on it? B&B or diaphram?? And since you are from Yakima, does John Zaretzke still race the circle track there, if you ever go there?
|
#12
|
||||
|
||||
hello, it's a mcleod B&B/long pressure plate, set at lower static pressure with 300 series disc. clutch pressure and disc will determine trans realibility also.
another item is shifting. if you granny shift, you can break any drive train. full throttle power shifting is a lot easier on parts, just requires fast foot and hand motion and guts. |
#13
|
|||
|
|||
For what it's worth. 40 years of Mopar dragracing with every form of A833 23/18 spline, big block, small block, 300 hp to 700hp. Normally aspirated, nitrous, blown. If you break one...let me know. The ones that break are clutch related and poor maintenance. The toughest stick trans out of the box that there is. I have never had a failure that was not "my" fault. Nothing like an old school four speed with a Vertigate, firewall reinforcement, slick shifted, and correct clutch departure.
|
#14
|
||||
|
||||
Quote:
NICE!!! Would that set up make a good street combo? |
#15
|
|||
|
|||
The 833 is no different than other trans..........
except that it is stronger. Yes you can break it but as you increase the tourqe output, you need to increase the trans and rear ability. The 833 was almost bullit proof on the Hemi and will do the same for you. NEVER think that any trans is forever. But the 833 has been louted as the best ever built. Will a stock 833 hold up behind a blown hemi? NO! Not for long. Build it as strong as you can in the beginning and it should make you proud.
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
A833 ? | cuda'lover | Performance Talk | 5 | 04-05-2006 08:50 PM |
capabilities of a slant 6 | hondakiller4l | Slant Six Chat | 1 | 11-19-2005 06:54 PM |
the capabilities of a /6 | hondakiller4l | Slant Six Chat | 0 | 11-16-2005 12:15 AM |
Summits cooling packages up to 1000hp cooling capabilities? | rb77413 | Performance Talk | 1 | 08-09-2002 10:19 PM |
a-500 performance capabilities... ?s | francis higgins | Performance Talk | 2 | 08-29-2001 06:28 PM |