2000ultraZ1911

Lol better take the ol ladys nail polish remover out

KingJacobo

Go with 2.73 gearing, a lot of classic cars that see lots of highway use (or aren't stomped on too much anymore) have these low ratios swapped in for DD practicality. I have 3.23s in my little 3 speed and if MPG was seriously a concern/goal I'd go lower ratio. Not as much fun off the line, but you wanted MPG, not neck snapping torque..

rrubio325

Who drives a v8 and is concerned about gas mileage

M4N14C

iTrader: (3)

What's wrong with getting more miles from your tank?

S13brett

I've heard of ls powered 240's getting over 30 so I think you should be able to.

Empatho

iTrader: (16)

Your biggest problem will be aerodynamics.

thunderstruck507

iTrader: (18)

Who has sex with a girl from a bar and uses a condom?


Nothing wrong with making the best of things when playing with less than practical things.

S8ER95Z

iTrader: (3)

Nicely done.. hahaha... I daily drive my car so mileage is important to me. I have some fun at the dragstrip and knock down great mileage on my ~60 mile commute for work each day. Honestly it's better than owning a beater and putting money into it.

xxrillixx

iTrader: (118)

In the munstang you can do that easy.


It would be tough in a auto fbody. But in a manual I dont see it being an issue.

As stated above, I would go with a 2.73... id also put a lot of effort into getting a very light weight wheels and package (something like the c4 y2k's). Id go with 245's or 245/275's. Anything you can save off rotational mass will be huge.

Then id talk to my tuner and have him lean out areas of my tune. IE if you do 65/75 for a 20-30 minute communte, have him ride with you and see if he can save you some gas in that area.

Let me know what you are able to do, I get 28mpg on the freeway in my turbo camaro.

MrBluGruv

I can't stand the "If you wanted fuel economy, you shoulda bought something else" mentality. There is literally no point to that line of thought. Why would you NOT want to improve something with no negative tradeoffs if you could?

TurbopigB4C

iTrader: (5)

My idea would be to wait for the new LT1 or 5.3 and 7 speed manual trans should get 30 easily. Its only a couple years away that they will do the 7 speed in a regular non corvette style chassis.

The other thing is to destroke a 5.3 block and build a long rod 4.6 with stock ls6 cam in your combo.

S8ER95Z

iTrader: (3)

Can you imagine the cost to swap an lt1 and the new trans? Might as well buy a new car.

TurbopigB4C

iTrader: (5)

Not if you prefer an older classic car. The ubercoolness of the old classic muscle cars kicking down new school reliability and technology with 30 -35 mpg is really cool to me and one day I will have the money to do one.

Just wait a few years and the prices will go down, used parts will surface and the aftermarket will catch up.