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Re: How fast with a stock 8 3/4
[Re: Quicktree]
#1593893
03/17/14 02:00 PM
03/17/14 02:00 PM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
super stock
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super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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8 3/4's are super strong and I wouldn't worry about it. I would recomend axles, gears and spool, back brace wouldn't hurt either.
67' charger 499 RB
10.57 at 127
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Re: How fast with a stock 8 3/4
[Re: onefastindy]
#1593900
03/17/14 11:19 PM
03/17/14 11:19 PM
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Joined: Aug 2008
Posts: 4,066
Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,066
Mo.
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Quote:
Car weighs 3260. It's a foot brake car. Stock stuff lasted about 25 passes with that 440. In that pic it had a 1.29 60 ft.
Footbreaken a 3200 lb.car witha 1.29 60's is hookin 
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Re: How fast with a stock 8 3/4
[Re: Thumperdart]
#1593901
03/17/14 11:27 PM
03/17/14 11:27 PM
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Joined: Aug 2008
Posts: 4,066
Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,066
Mo.
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Quote:
Quote:
Quote:
Quote:
I've been 5.80's in the 1/8 with 1.29 60ft with stock axles and sure grip before it twisted the housing. Now it's got a new one that's back braced with moser axles and spool with billet caps.
Tell us more................. 
Thumper are u trying to stir the pot?lol
No sir, I just trip on the fact that some 11-12 second cars kill em and these guy`s and myself run 9`s and faster and they live.........But as Quick pointed out, guess I`m not totally hooking............. 
Thump. doesn't your car has the MW cap on it?I think the op.was referring to a stock rear.With that said,i think that the reason so many 8.75's or in the 9's,8's along with other modification that they do to these rearends 
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Re: How fast with a stock 8 3/4
[Re: FastmOp]
#1593907
03/18/14 10:54 PM
03/18/14 10:54 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Hi 6's in the 1/8. Anything past 6.80 is gambling on stock everything.
I went 6.00 with my 8&3/4. But the trans break is the week link finder.
I've been using a trans brake from day one.. like I
said I got over 600 passes on a stock center.. even
with the cone style posi.. all with the trans brake
but my car is lite... each pass was from 5200 rpm
or up launches...weight tends to kill them
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Re: How fast with a stock 8 3/4
[Re: 70dusterjohn]
#1593910
03/19/14 10:25 AM
03/19/14 10:25 AM
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Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
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I broke something in the stock sure-grip running 11.40s at 3700#. Found twisted axle splines when I took it apart. Changed to a spool w/ 35 spline axles and all was good until I started running mid 10s at the same 3700#. It took the teeth off the ring and pinion. Car never 60 footed all that well (1.49-1.51) w/ a best of 10.40 at 129 mph. Once that happened I put a Dana in it. That was in 2003...haven't touched it since.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: How fast with a stock 8 3/4
[Re: an8sec70cuda]
#1593911
03/19/14 10:51 AM
03/19/14 10:51 AM
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Joined: Aug 2008
Posts: 4,066
Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,066
Mo.
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Wish i knew at what weight kills them as i broke one bout 20 years ago  on the street.Tore it apart and it was the spider gears,Went to a spool 33 spline with the street/stripe axles broke an axle,upgraded to a 35 spline/race axles all was good ran with that setup for about 10 years never broke a gear or anything(wish we had a wood knocking icon  )but went to a different gear(4.56 to 4.10)which kind of raising my worried factor cause the 4.10 ring gear seems a little thin  we shall see.
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