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Old 04-13-2013, 11:24 PM   #1
Mr. Nasty
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With the 4l80e what gear are you runnig

If super charged & running a 4l80e trans with 600+HP what rear gear are you running ? I am still running the stock 3.27 and thinking of going lower maybe 3.45 or 3.70.
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Best @ 586/525 =10.41 @ 133
AS OF 12/13/14>633 RWHP =10.22@135
AS OF 1/31/15 @ 633 RWHP=10.16@135
AS OF 1/29/16 @ 633 RWHP=10.10@136
TOPED 700 PASSES AFTER F.I. AND STILL ON THE ORIGIANAL STOCK AXLE & DIFF
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Old 04-13-2013, 11:30 PM   #2
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3.70s here...
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Old 04-14-2013, 02:25 AM   #3
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3.90s, and it still needs more gear off the line. 4.11 would be perfect at my hp level (625).
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Old 04-14-2013, 08:36 PM   #4
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3.90s, and it still needs more gear off the line. 4.11 would be perfect at my hp level (625).
Why do you think you need more gear? rpms to low on the big end? Are you in 3 or 4 gear crossing the line? What kinda times are you running?
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Old 04-14-2013, 10:49 PM   #5
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Then again for the boosted guys, with less first gear, you could just leave on more boost. If I had a boosted combo and was running a two step, I'd set it higher and try to leave on a few more lbs of boost.
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Old 04-15-2013, 08:03 AM   #6
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I don't know about him am crossing in 3rd only one trip with the 4l80 will go next week and see what RPM am crossing if below 5,000 will try 3.70 gears. Wonted some feed back on set up like mine. There a lot of thread on gear but with different set ups, and trans.
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Best @ 586/525 =10.41 @ 133
AS OF 12/13/14>633 RWHP =10.22@135
AS OF 1/31/15 @ 633 RWHP=10.16@135
AS OF 1/29/16 @ 633 RWHP=10.10@136
TOPED 700 PASSES AFTER F.I. AND STILL ON THE ORIGIANAL STOCK AXLE & DIFF
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Old 04-15-2013, 09:41 AM   #7
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Why do you think you need more gear? rpms to low on the big end? Are you in 3 or 4 gear crossing the line? What kinda times are you running?
I need more gear, because the tires hold all the power my engine makes, and it only cuts high 1.4 60 foots Like John said, with more power you can run less gear and be ok. I make 620-630, cross around 6500 rpms in third gear
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Old 04-15-2013, 11:34 AM   #8
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Mr. Nasty post a whole slip, combo, rwhp.

3.70 would still be a nice street gear with 28.5 tall tires it's still not a lot of gear.
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12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
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Old 04-15-2013, 05:42 PM   #9
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On a mustang dyno am at 587 RWHP & 525 TRQ with the trq when hits the 525 it hold level. that on 12 lb of boost . tires 305/45/18 M/T
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Best @ 586/525 =10.41 @ 133
AS OF 12/13/14>633 RWHP =10.22@135
AS OF 1/31/15 @ 633 RWHP=10.16@135
AS OF 1/29/16 @ 633 RWHP=10.10@136
TOPED 700 PASSES AFTER F.I. AND STILL ON THE ORIGIANAL STOCK AXLE & DIFF
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Old 04-15-2013, 05:44 PM   #10
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This was my best ET
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__________________
Best @ 586/525 =10.41 @ 133
AS OF 12/13/14>633 RWHP =10.22@135
AS OF 1/31/15 @ 633 RWHP=10.16@135
AS OF 1/29/16 @ 633 RWHP=10.10@136
TOPED 700 PASSES AFTER F.I. AND STILL ON THE ORIGIANAL STOCK AXLE & DIFF
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Old 04-15-2013, 07:10 PM   #11
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I would definitely at least go to a 3.70 and maybe even a 3.91. These cars are super heavy and like some gear. Like John said, a two step is very good as well
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Old 04-16-2013, 07:40 AM   #12
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Quote:
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This was my best ET
What wheel and tire combo?
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Old 04-16-2013, 07:46 AM   #13
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Quote:
Originally Posted by 429 View Post
I need more gear, because the tires hold all the power my engine makes, and it only cuts high 1.4 60 foots Like John said, with more power you can run less gear and be ok. I make 620-630, cross around 6500 rpms in third gear
I would like some 1.4 60s!! With 20s and nto5r I have had a best of 1.6. With no traction issues off of foot brake. I now have a set of 17s mh drag radials, buy not its a 26 inch tall tire. Another way to get more gear.
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Old 04-16-2013, 07:58 AM   #14
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Quote:
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What wheel and tire combo?
stock on the front and forgestar CF5 18"x11" wheels on rear with 305/45R15 M/T. Best 60' with this set up 1.511
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Best @ 586/525 =10.41 @ 133
AS OF 12/13/14>633 RWHP =10.22@135
AS OF 1/31/15 @ 633 RWHP=10.16@135
AS OF 1/29/16 @ 633 RWHP=10.10@136
TOPED 700 PASSES AFTER F.I. AND STILL ON THE ORIGIANAL STOCK AXLE & DIFF
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