2.73 to 3.42 mpg difference
#1
2.73 to 3.42 mpg difference
Hey guys I really wanted to do a stall but wat told t would suck with the stock gears so here I am lol. My only big concern is fuel economy which is why I'm lookin at 3.42s over the 3.73s after skme calculations it's lookjn like I'd b spinning 2500 rpms at 80 instead if the 2000 I do now. Is that enough to completely tank my mpg? Only reason I'm worry is cuz 3.73s put the car at 3000rpms at 80 which I saw drops mpg down to any 21 on the highway.
Thanks Dan
Thanks Dan
#2
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Hey guys I really wanted to do a stall but wat told t would suck with the stock gears so here I am lol. My only big concern is fuel economy which is why I'm lookin at 3.42s over the 3.73s after skme calculations it's lookjn like I'd b spinning 2500 rpms at 80 instead if the 2000 I do now. Is that enough to completely tank my mpg? Only reason I'm worry is cuz 3.73s put the car at 3000rpms at 80 which I saw drops mpg down to any 21 on the highway.
Thanks Dan
Thanks Dan
#3
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You won't notice a difference. I'm about to go from 3.23's to 3.73's and a 3200 stall. Just the gears alone won't cut your mpg in half or anything, but a stall will reduce your mpg a lot more.
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I went from 2.73 to 3.73. I haven't noticed a difference in MPG. It still sucks!!! I get about 18 average. Mostly city driving. And a leaking gas tank. So, no worries. Oh, and my tach is off by 200 RPMs. It says 2800 at 80 which is actually only 2600. That's with the 3.73.
#5
stall converters have a lock up clutch,which acts like a 5 gear.if you do alot a city driving you will lose some mpg.if you want to beat stangs and rice racer,get a 3500 stall and a trans cooler.
#7
This is the same thing everyone has been telling me and I dont do a lot of city driving thats why the stall kind of appealed to me I had other threads about it and people were telling me to do gears first and vice versa I was looking at around a 3200 stall because of the 2.73's and the car is a dd so I think that what I'll be looking at here soon.
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I've also heard that you'd want to upgrade your gears anyway if your going with a stall just because of the stress it adds to your transmission and because driving around with a stall just feels weird with 2.73s compared to higher gears. A few mpgs down isn't going to kill you, I wouldn't worry about it anyway. Thats why you have a V8!
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I've also heard that you'd want to upgrade your gears anyway if your going with a stall just because of the stress it adds to your transmission and because driving around with a stall just feels weird with 2.73s compared to higher gears. A few mpgs down isn't going to kill you, I wouldn't worry about it anyway. Thats why you have a V8!
#11
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Like the others have stated, few have purchased a LS powered F-body for their fuel efficiency.
That being said, the swap from a 2.73 to a 3.42 or 3.73 (which I would recommend) would only have a nominal effect on mileage. Perhaps you get 20 less miles on a tank of gas. If you average 20 mpg (highway), that's one extra gallon of gas at $2.85 you'd have to purchase to go the same distance as before.
I do understand the beer fund as noted above -- that $2.85 equates to a 6-pack of Beast light or Southpaw!
That being said, the swap from a 2.73 to a 3.42 or 3.73 (which I would recommend) would only have a nominal effect on mileage. Perhaps you get 20 less miles on a tank of gas. If you average 20 mpg (highway), that's one extra gallon of gas at $2.85 you'd have to purchase to go the same distance as before.
I do understand the beer fund as noted above -- that $2.85 equates to a 6-pack of Beast light or Southpaw!
#15
well guys it looks like the stall may have to come after the gears.... Lol I was at the junk yard today getting a few things with my grandpa when I stumbled up a 98 v6 camaro with the 3.42 and posi option. The car had unknown mileage but the interior had no rips the underbody was clean as hell, the keyless remote looked almost new even the shocks were grease free so I figured it couldnt have had a hell of a lot. Anyway I pulled out the auburn posi and gears and they all look great no cunks missing and the magnet just had regular metal fuzz on it. Anyway I ended up walking out with the ring and pinion along with the auburn carrier for $45 bucks lol so I figured I really cant go wrong even though I'm more of a torsen guys as far as the posi goes.