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View Poll Results: What mod would you choose for a bolt-on, F11, m6, street-only car?
4.10 gears in a 10 bolt
8
24.24%
Heads
25
75.76%
Voters: 33. You may not vote on this poll

Heads or 4.10 gears in a 10 bolt for street use only?

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Old 07-18-2006, 04:25 PM
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Default Heads or 4.10 gears in a 10 bolt for street use only?

I would like to get a little more performance on the street. I plan on keep the same setup as in the signature with the exception of either heads or 4.10 gears in the 10 bolt. I know everyone says that our 10 bolts are weak, but I'm thinking that I should be ok as long as I stay off the track and don't run drag radials (correct me if I'm wrong). I figure both will significantly increase my performance through all the gears, but the 4.10s will make it a little easier to drive (although it's really not an issue now) and will save me a substantial amount of money. What do you think?


Thanks,

Jim
Old 07-18-2006, 04:26 PM
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You can break a 10 bolt with minimal effort also. I run heads/cam on my stocker, and just don't dump the clutch, but I would do the heads if I were you. That would compliment that F11 nicely!
Old 07-18-2006, 04:26 PM
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The 4.10s will make a more noticeable difference, but you will have to shift much more often.
Old 07-18-2006, 04:31 PM
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I've seen people break 4.10 gears with street tires. If you saw how ridiculously small the pinion gear is, you'd laugh.
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Last edited by Patrick G; 07-18-2006 at 04:44 PM.
Old 07-18-2006, 04:40 PM
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Thanks for the quick responses!

Which would be more susceptible to breaking, 3.42s in a 10-bolt with heads or 4.10s in a 10-bolt without heads?

Thanks,

Jim
Old 07-18-2006, 04:41 PM
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7.5 isnt very big either.
Old 07-18-2006, 04:42 PM
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4:10's probably. I would think that just faster movement would help speed the breaking process up. But they are just weak in general. That is the problem like Patrick said because they are "petite".
Old 07-18-2006, 04:52 PM
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Since heads and install cost about as much as a 12bolt, why not get a 12bolt with the gears you want? Money invested in a 10bolt is money down the drain when it breaks.
Old 07-18-2006, 04:57 PM
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12 bolt can take a severe beating too. So you might actually have more SOTP power with gears in a better rear.
Old 07-18-2006, 05:23 PM
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Originally Posted by dug
Since heads and install cost about as much as a 12bolt, why not get a 12bolt with the gears you want? Money invested in a 10bolt is money down the drain when it breaks.
Well, I originally considered this, but was talked out of it. I spoke with a guy who builds pro street cars, and is respected in the field, and he told me that installing a 12-bolt and subframe connectors would just transfer a lot of the stress up to the top of the car and with t-tops and no cage I would likely bucket the quarter panels. He recommended putting as much power to the pavement as the street tires could handle (e.g., heads or gears in the 10-bolt) as opposed to hooking-up hard and damaging the body of the car. However, I do not beleive he has ever worked on an F-body, so maybe a 12-bolt and subframe connectors wouldn't be that bad ... I don't know. But that's why I did not consider installing one. Also, if I did heads I would do them myself, so the total install would be considerably cheaper than a 12-bolt (obviously that's dependant on which heads I would buy - which is a whole different topic)

Thank,

Jim
Old 07-18-2006, 05:53 PM
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Assuming all things are the same a 4.10 gear set will be physically weaker than a 3.42 gear set.
Old 07-18-2006, 08:06 PM
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Originally Posted by ACCELR8
Well, I originally considered this, but was talked out of it. I spoke with a guy who builds pro street cars, and is respected in the field, and he told me that installing a 12-bolt and subframe connectors would just transfer a lot of the stress up to the top of the car and with t-tops and no cage I would likely bucket the quarter panels. He recommended putting as much power to the pavement as the street tires could handle (e.g., heads or gears in the 10-bolt) as opposed to hooking-up hard and damaging the body of the car. However, I do not beleive he has ever worked on an F-body, so maybe a 12-bolt and subframe connectors wouldn't be that bad ... I don't know. But that's why I did not consider installing one. Also, if I did heads I would do them myself, so the total install would be considerably cheaper than a 12-bolt (obviously that's dependant on which heads I would buy - which is a whole different topic)

Thank,

Jim
That guys advice is pretty comical. I would do the 12 bolt with 4.10s
Old 07-18-2006, 09:57 PM
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Originally Posted by black_z
That guys advice is pretty comical. I would do the 12 bolt with 4.10s
That or a 9" with 4.30's Can you figure which mod I can't wait to do?
Old 07-18-2006, 11:44 PM
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Originally Posted by ArcticZ28
9" with 4.30's
I am going to have to say that one.
Old 07-18-2006, 11:48 PM
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Originally Posted by orangeapeel
I am going to have to say that one.
Nope. TB Bypas Mod!!! OMGLOLOL GOTCHA!!

.....ok I'll stop posting now.
Old 07-18-2006, 11:56 PM
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Originally Posted by ArcticZ28
Nope. TB Bypas Mod!!! OMGLOLOL GOTCHA!!

.....ok I'll stop posting now.

Lol, you sound like that village idiot....orangeapeel.
Old 07-18-2006, 11:57 PM
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I voted heads by accident. Hey, it's late....

12 bolt with 4.10s or 4.33s, sticky tires (nitto drag radials, for example) and subframe connectors. Car will be perfectly fine.

How's your clutch?
Old 07-19-2006, 12:37 AM
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Get the Heads then when you blow that POS 10 bolt all to pieces your forced to upgrade your rearend
Old 07-19-2006, 11:37 AM
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Originally Posted by seth webster
Get the Heads then when you blow that POS 10 bolt all to pieces your forced to upgrade your rearend

See, the thing is that not everybody can afford to throw ~$2,500 down at any given time to buy a 12 bolt because they broke the 10 bolt.
Old 07-19-2006, 11:40 AM
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Originally Posted by blkZ28spt
See, the thing is that not everybody can afford to throw ~$2,500 down at any given time to buy a 12 bolt because they broke the 10 bolt.
LOSERS!!

I could just barely afford to buy a used stock rear end cover to fix my leaky one



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