3.73s and gas mileage

**chuxz07** · 11-11-2007, 11:26 PM

First of all I would like to thank you guys for your feedback on the ls6 intake.
My new question is will 3.73s effect my gas mileage that much? I have 98 z28 with an automatic trans.

**Jays00ss** · 11-12-2007, 06:30 AM

no, Maybe 3 miles a gallon. But we didn't buy our cars for gas milage Right?

**9t8z28** · 11-12-2007, 10:10 AM

No, it will not affect your gas mileage much, but you want to go faster, Right?!!

No matter what, with 3:73's your gonna be into the throttle more!

**67CamaroRSSS** · 11-12-2007, 01:23 PM

You don't buy a V8 powered Muscle Car because of it's economy of operation, you buy it because hammering the loud pedal makes your adrenaline flow and your heart pound.

**JwMonE99** · 11-12-2007, 04:55 PM

whats gas mileage? lol

**whazuupgto** · 11-13-2007, 12:19 PM

I echo what 67camarorsss says!!!!!!

**nomorefords** · 11-13-2007, 12:48 PM

well since i've put mine in i've noticed i'm going to the gas pump a day or so earlier, but i don't know if that's the gears or my foot trying to go through the floor!!! but, you'll about 3 mpgs less.

**35thz28camaro** · 11-13-2007, 04:30 PM

i lost about 2mpg

**INMY01TA** · 11-15-2007, 08:25 PM

Can't speak for autos but going from 3:42s to 4:10s in my M6 my mpgs didn't change even 1 mpg. Less than a 1mpg drop. Cant believe it'd be that different for an auto. Losing 3mpg seems like alot.

**Frankthetank** · 11-16-2007, 06:58 PM

lol i dont blame him.....lol some of us drive ours everyday to work and back......
Im not like that anymore.....I bought a little 400$ geo metro with 46mpg on the hwy! w00t w00t.......for work of coarse.....

but then again its timing belt broke the other week.....and on top of that my camaro's tranny is out....again lol

**chevyss1234** · 11-16-2007, 10:43 PM

i've got an 01 ss m6 does anyone know what kinda gears i have?

**35thz28camaro** · 11-17-2007, 05:49 AM

Originally Posted by chevyss1234

i've got an 01 ss m6 does anyone know what kinda gears i have?

probably 3.42

**SSDoubleK** · 11-17-2007, 06:22 AM

Look at your driverside door panel, it lists the codes,almost positive GU4 is for 3.42's, your 01 if its a SS has 3.42's., it its a six speed, 3.23's if its a auto.

**clg82** · 11-18-2007, 12:39 AM

How about traction? I have a shift kit and am about to install 3.73 gears. will i still get ok traction?

**35thz28camaro** · 11-18-2007, 05:13 AM

Originally Posted by clg82

How about traction? I have a shift kit and am about to install 3.73 gears. will i still get ok traction?

after i installed my 3.73s i could not get any traction under 30mph with street tires

**slims00ls1z28** · 11-18-2007, 05:40 AM

Kiss traction goodbye with the 3.73's and street tires. you won't notice to bad a difference with the gears unless you keep your foot in it all the time. I put 4.11's/9", MS3, 3600 stall, Headers, LS6 and tune pretty much at the same time and dropped from about 28 average to about 20-21 average on a 100 mile trip to work. Of course that changes when I stomped the go pedal, but just putting around town and driving back to work it wasn't as drastic as I expected.

I also disagree with 67Camaro somewhat on the v8 DD aspect. I got rid of my crappy 400$ tercel as a DD for my current LS2 Goat just because I couldn't stand driving that turd and missed the v8 feel even just driving to work and back. I don't think I'll be going back to 4 cylinder beaters anytime soon, I'd rather spend just a tad more in gas to drive something I like. I might just be crazy like that though.

**clg82** · 11-18-2007, 11:30 PM

So street racing is out for me then huh? Cause I do quite a bit of street racing from a dead stop. And won't be getting any traction with street tires huh?

**firemedic0135** · 11-19-2007, 12:23 AM

Originally Posted by clg82

So street racing is out for me then huh? Cause I do quite a bit of street racing from a dead stop. And won't be getting any traction with street tires huh?

I Had 245/50/16 when I switched to 3.73 in my A4 and they were gone in a month.
You can roast the tires all day but unfortunantly you will have little traction until you upgrade your wheels and tires.
I could not hook up until going with a 315/35/17 and the 3.73 was about the only mod,well it has a tune also.

You will have to be carefull when really getting on it or you may end up in the other lane or the ditch.

**JHayesLS1** · 11-19-2007, 04:26 AM

You just have to control it I have found. Not saying that I have the solution by any means, but I have 4.11's in my M6 WS6 and I do have traction problems but I have learned to control the throttle it makes it a bit easier for me to grab traction. Is the OP auto or M6?

**clg82** · 11-19-2007, 05:12 PM

Originally Posted by JHayesLS1

You just have to control it I have found. Not saying that I have the solution by any means, but I have 4.11's in my M6 WS6 and I do have traction problems but I have learned to control the throttle it makes it a bit easier for me to grab traction. Is the OP auto or M6?

Auto with traction control