LOL..so i killed a Cobalt

**4tun8** · 10-31-2007, 04:42 AM

Originally Posted by colesherman86

HAHA gas milage is the funny part, the old SS supercharged got 22 mpg city 30 highway, so for my M6 LS1 has averaged 24 to 25mpg per tank and maybe 80 out of the 200 mile on that tank are highway, but yeah insurance blows on it

Insurance would be cheaper for me to have an LS1 car then the car I have....and the mileage is about the same. I only get about 22mpg.

**Shermanator86** · 10-31-2007, 04:45 AM

Originally Posted by 4tun8

Insurance would be cheaper for me to have an LS1 car then the car I have....and the mileage is about the same. I only get about 22mpg.

i never got that, does boost kill mileage on 4 cyl. or what? would it do that if i turbo/supercharged my car?

**4tun8** · 10-31-2007, 04:52 AM

I have no clue the reasoning, but I beat on my car like from the moment i jump in it to the moment i jump out of it.

You gotta figure I'm making over 400 horse, so the power has to come from some amount of gas. I'm using 880cc injectors so they can really drink when they want to....

**Shermanator86** · 10-31-2007, 05:00 AM

Originally Posted by 4tun8

I have no clue the reasoning, but I beat on my car like from the moment i jump in it to the moment i jump out of it.

You gotta figure I'm making over 400 horse, so the power has to come from some amount of gas. I'm using 880cc injectors so they can really drink when they want to....

yeah, but the stock SS supercharged doesn't get great milage for a 4 cyl. and its got 205hp, don't know maybe its got some crazy comp. ratio or something

**4tun8** · 10-31-2007, 05:33 AM

normally stock boosted cars are tuned VERY conservatively from the factory....IE 9:1 AFR's and that WILL consume gas quickly.

When I was just bolt ons with my car and had it tuned for more power I was getting 27ish mpg.

**Rikki_SeVeN** · 10-31-2007, 06:57 AM

Originally Posted by colesherman86

yeah, but the stock SS supercharged doesn't get great milage for a 4 cyl. and its got 205hp, don't know maybe its got some crazy comp. ratio or something

it's all a matter of how hard you have to push your car to get it to move...Power To Weight ratio, Torque and such... us LS1 car owners barely have to give it any gas and the thing will move under normal driving situations... I myself never make it over 1700rpms on a normal drive.... where as a 4Cil in a boosted aplication with it's low compression and tq has to push alot harder to get moving and therefore spends more gas under normal driving... 3000+lbs Evo... with a 2.0L... still needs to get up to 3k rpms or more to get moving in the normal flow of traffic...

at least that's my theory about the whole thing...

**blackhawk01** · 10-31-2007, 07:09 AM

Thats why my 4.3 Xtreme got such shitty mielage. Sucky ass power to weight ratio.

**Shermanator86** · 10-31-2007, 07:47 AM

Originally Posted by blackhawk01

Thats why my 4.3 Xtreme got such shitty mielage. Sucky ass power to weight ratio.

would explain my 11 to 12 mpg out of my 5.9l dodge, only 245hp and like 4500lbs, damn thing just chugs gas down, not as bad as my dads 8.1L 3/4 chevy though, that thing is thirsty

**4tun8** · 10-31-2007, 08:07 AM

Originally Posted by Rikki_SeVeN

it's all a matter of how hard you have to push your car to get it to move...Power To Weight ratio, Torque and such... us LS1 car owners barely have to give it any gas and the thing will move under normal driving situations... I myself never make it over 1700rpms on a normal drive.... where as a 4Cil in a boosted aplication with it's low compression and tq has to push alot harder to get moving and therefore spends more gas under normal driving... 3000+lbs Evo... with a 2.0L... still needs to get up to 3k rpms or more to get moving in the normal flow of traffic...

at least that's my theory about the whole thing...

yeah 3000rpm is about right on the money. At 3000rpm in 5th gear I'm doing about 70.

**Shermanator86** · 10-31-2007, 08:26 AM

Originally Posted by 4tun8

yeah 3000rpm is about right on the money. At 3000rpm in 5th gear I'm doing about 70.

i never got why evo's only have a 5sp, so do mustangs don't they

**Rikki_SeVeN** · 10-31-2007, 09:36 AM

Originally Posted by colesherman86

i never got why evo's only have a 5sp, so do mustangs don't they

cause sometimes a 6 speed can actually be a dissadvantage... case and point... the crappy top end of a Subaru STi...6-speed... gears are too close... only made for acceleration...not top end...