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View Full Version : 3.90 or 4.11 gears for a 10.9?


Mystery Bird
09-24-2013, 02:16 PM
I'm currently running 11.20 @120 with a 3.90 gear. Pretty sure if I can get into some cold air soon I can pull an 11.1x. I want to bring a 10.9x slip and was wondering if going to a 4.11 gear would make that happen?
Louvit
09-24-2013, 02:35 PM
Don't think that will make the difference, You 60's are great. Get some weight out maybe.
Mystery Bird
09-24-2013, 02:51 PM
Maybe I should send my car to a fat farm for a little vacation.
popo8
09-24-2013, 03:18 PM
agreed...i dont know that ubwill notice 3.90s-4.10s

I second the idea of sheddi g some weight.

MEMBER @ LTXtech.com
SexyTransAm
09-24-2013, 03:30 PM
spray it! lol
Mystery Bird
09-24-2013, 03:32 PM
spray it! lol

If I ever spray it it will be to get a 9.9x time slip.
SexyTransAm
09-24-2013, 03:33 PM
Sounds good. Skip right over 10.9s

Sent from my SAMSUNG-SGH-I547 using Tapatalk 4
Mystery Bird
09-24-2013, 03:38 PM
agreed...i dont know that ubwill notice 3.90s-4.10s

I second the idea of sheddi g some weight.

MEMBER @ LTXtech.com

Are you saying I'm fat?
1sickta
09-24-2013, 03:39 PM
I'm running 9.95@133mph with a 80E and 4.10's but I let it shift into 4th and let it eat.
1sickta
09-24-2013, 03:41 PM
But on a side note I would stick with the 3.90 gear if you do much driving at 70+mph I'm setting at about 2,800@70mph
popo8
09-24-2013, 04:10 PM
Are you saying I'm fat?

lol... ive never seen u...but i meant the car. hahaha

MEMBER @ LTXtech.com
dawdaw
09-24-2013, 04:12 PM
You running a 28" tire? If so 4.30 gear. Yes your a fat bird lol
Mystery Bird
09-25-2013, 08:20 AM
Lol, just messing popo, I weigh 185. Dawdaw, I'm running a 26 inch tire and crossing the line at about 6300 RPM's.
Mystery Bird
09-25-2013, 08:24 AM
I'm running 9.95@133mph with a 80E and 4.10's but I let it shift into 4th and let it eat.
You're running 9's NA? I thought about dropping my converter to a 3600 and going to 4.10 too. I don't do any highway driving, not much of that in my area. Driving to work, which is a 55 mile round trip, most I see is 60 MPH.
1sickta
09-25-2013, 09:42 AM
I Run 9's on a 200 shot. 10.90's NA
dawdaw
09-25-2013, 10:25 AM
Lol, just messing popo, I weigh 185. Dawdaw, I'm running a 26 inch tire and crossing the line at about 6300 RPM's.

Hmm ya then I wouldn't dink with it. Leave it and you can always grow. Car will pick up this fall, how was the weather when you set your pb? What's the converter stall and what diameter? Your combo works pretty good
Mystery Bird
09-25-2013, 12:27 PM
Hmm ya then I wouldn't dink with it. Leave it and you can always grow. Car will pick up this fall, how was the weather when you set your pb? What's the converter stall and what diameter? Your combo works pretty good

PB weather was low 70's with about 1900 DA. TC is a 4000, Andre said true stall is like 4100, and it's a 9.5 inch.
dawdaw
09-25-2013, 12:59 PM
I think its got 10s in it as it sits when some cold air rolls in late this fall!
Mystery Bird
09-25-2013, 04:48 PM
I think its got 10s in it as it sits when some cold air rolls in late this fall!

Guess we'll find out in a couple weeks. I went two weeks ago temps in the high 60's with a DA of 2200, spun every time though. I still managed to match my PB but trapped 120 instead of 118. I think if it didn't spin it surely would have been an 11.15ish.
dawdaw
09-25-2013, 05:42 PM
what's in the car suspension wise? shocks and settings, ta, lca setting, and pinion angle? 3700 lbs definitely don't help either lol but at least you can knock some et off if you ever decide to pull some out.
Mystery Bird
09-26-2013, 07:44 AM
what's in the car suspension wise? shocks and settings, ta, lca setting, and pinion angle? 3700 lbs definitely don't help either lol but at least you can knock some et off if you ever decide to pull some out.

Stock original springs and shocks, UMI tunnel mount TA set at -3, and LCA's on the bottom. Oh also have UMI drag bar. The car is actually 3640 now but I can't edit my signature for some reason.