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Old 12-09-2012, 11:12 PM   #1
BeastlyC5
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Default I don't want to be fast anymore

Hey folks. Proud new owner(and member) of an '01 C5 6speed here. Just picked her up(against my wife's wishes) this past summer and have been enjoying it so far. Beastly(knick name ) definitely gets the looks on the street if you know what I mean haha. Have gotten tons of compliments everywhere.
Only thing I'm having trouble adjusting to is the fuel consumption on this thing. I mean, it's god-darn horrible. I drive a prestine Chevy Beretta which sips fuel, despite it being a really quick car(bunch of mods), and it's almost painful when I have to fill up the vette so often.
Now, i'm at the age where I don't really need the speed of the car to be quite honest so was wondering if I could knock it down a couple cylinders permanently? Any mod that can be done?
I have a buddy who has a new C6 and he's always bragging about running on 4 cylinders to save on fuel when not giving it throttle and it's something I definitely want. Basically, I'd like to know if I can just disable 4 of the cylinders, or 3 if it's more doable, so that I can consume a lot less? Again, I don't really need the speed.
Any help much appreciated.

(yeah, that's me in the blue trunks)

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My Beretta in case anyone is wondering...

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Last edited by BeastlyC5; 12-09-2012 at 11:17 PM.
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Old 12-09-2012, 11:38 PM   #2
Dave68
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Congrats. My 01 averages about 20 MPG with mixed city and highway driving.

Your buddy may not realize that C6s do NOT have cylinder deactivation. The C7s will, but they haven't been released to the public, yet.
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2001 Mag-Red Coupe 6-Speed, 1SC, Z51, Born: May 17, 2001, delivered June 7th, 2001
315.9 RWHP 337.7 RWTQ (Dynojet) 6/8/02 (no mods)
328.8 RWHP 352.2 RWTQ (Dynojet) 5/22/04 with Halltech Stinger intake and CAI mod
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2002 Z06 airbox, 2013
Cold-air scoop mod 5/20/04
TPS Z06 shifter (replaced BPP on 12/26/11)
Intake install, oil trap, and CAI mod: http://www.conceptualpolymer.com/corvette_c5_corner.htm
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Old 12-09-2012, 11:39 PM   #3
JaxC5
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Sell it....sell it now......feel like I'm on punk'd.

Pull your pants up......higher...... gas mileage gets better.

Sorry, 1 too many drinks tonight to give a serious response.....
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Old 12-09-2012, 11:43 PM   #4
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I have a 01 six speed as well and its highly modified I still get 27 on the highway and around 15-18 in town. I had a basically stock 01 Z06 and it got 31 consistently on the highway and averaged around 20 in town. I'm sure I will get corrected here by someone but I have heard that the disabling of cylinders is only effective when the car is up to speed and not pulling, so permanently disabling them would do you zero good. And even being able to disable the cylinders only gets you around 8-10% better economy if even. For the amount of money it would take to accomplish this you would never recoup the costs. If your car is running right and you can keep your foot out of it these cars can get very respectable mileage...
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Last edited by koldnrg; 12-09-2012 at 11:45 PM.
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Old 12-09-2012, 11:44 PM   #5
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Big as$ picture is big.

Nice shirt. Wait... Wuut?

You bought a Vette and you're worried about gas mileage? LOL
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Old 12-09-2012, 11:52 PM   #6
BeastlyC5
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I'm getting way less than 20 mpg. Definitely much better on the Beretta.
But isn't there a way I can just stop the pistons from moving up and down for good. If there is no combustion in those cylinders, than i'm not really wasting gas right? Or maybe disabling the injectors(or pistons) or taking them out completely.
Sorry, i'm not really tech savvy when it comes to this.

Chassed,

I love the car for it's looks and handling. Don't really care for the speed. I hat getting speeding tickets so.

Last edited by BeastlyC5; 12-09-2012 at 11:56 PM.
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Old 12-09-2012, 11:56 PM   #7
JaxC5
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Quote:
Originally Posted by chassed View Post
Big as$ picture is big.

Nice shirt. Wait... Wuut?

You bought a Vette and you're worried about gas mileage? LOL
Kinda warm for a sweater......

I feel bad for being a db about this but.....what mods, how bad is the mileage? I was being a d#ck because for what we have, our cars get great gas mileage.....I'm getting 29 on the highway.....
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Old 12-10-2012, 12:01 AM   #8
koldnrg
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Quote:
Originally Posted by BeastlyC5 View Post
I'm getting way less than 20 mpg. Definitely much better on the Beretta.
But isn't there a way I can just stop the pistons from moving up and down for good. If there is no combustion in those cylinders, than i'm not really wasting gas right? Or maybe disabling the injectors(or pistons) or taking them out completely.

Uhm... nope. The vehicles that have actual Displacement on demand, or also called active fuel management typically accomplish this by controlling the valves along with the fuel to the cylinders. If you don't control the valves they will still suck air in which is where engines can loose power at lower rpms while highway cruising. Because the throttle is barely open and the engine actually has to work to pull air in past the small opening.

If your getting less than 20 and your not driving like a mad man there is something wrong. Check your plugs, air filter, fuel filter etc...
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Old 12-10-2012, 12:09 AM   #9
BeastlyC5
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I don't have anything done to it. It's stock. I just got a tune up at Pep Boys this September. Everything checked out ok.
Would I be able to just take 4 of the pistons & injectors out? I mean, there has to be a way I can just kill half of the engine. If the cylinders I don't want aren't firing then I'm not burning any gas in them right? I've heard of people unintentionally losing cylinders. So I WANT to lose them. How do I do this?
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Old 12-10-2012, 12:10 AM   #10
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Drop pan and pull heads. Take out all pistons on the LEFT side. Put everything back. Keep left side plug wires as spares. Use ONLY ethanol 85 from the time you put it back together. Report results.




Oh, and WELCOME to the forum !!!
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Old 12-10-2012, 12:16 AM   #11
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What a fake post... IB4TL
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Old 12-10-2012, 12:18 AM   #12
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Old 12-10-2012, 12:21 AM   #13
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Is this April 1st?
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Old 12-10-2012, 12:22 AM   #14
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1, 2, buckle your shoe !
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Old 12-10-2012, 12:34 AM   #15
BeastlyC5
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Ummm, I have no reason to lie about this. Are you guys serious?
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Old 12-10-2012, 12:35 AM   #16
Damillio
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Quote:
Originally Posted by chassed View Post
Big as$ picture is big.

Nice shirt. Wait... Wuut?

You bought a Vette and you're worried about gas mileage? LOL
I bought mine FOR the MPG lol. Previous DD was 12-15 city, 20-22 highway

Ohh.. and IB4TL.

Obvious troll is obvious
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Old 12-10-2012, 12:36 AM   #17
damilleniumboy
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How funny.
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Old 12-10-2012, 12:37 AM   #18
chassed
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Quote:
Originally Posted by BeastlyC5 View Post
Ummm, I have no reason to lie about this. Are you guys serious?

Are you serious?

You should swap your LS1 for a Honda Vtech engine.
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Old 12-10-2012, 12:40 AM   #19
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007
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Old 12-10-2012, 12:45 AM   #20
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I'll bet you could swap your old nasty A$$ LS1 to somebody for maybe a honda motor
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Old 12-10-2012, 12:45 AM
 
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