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Old Mar 30, 2012 | 05:02 PM
  #1  
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Engine: L33 5.7
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MPG

Some of you seen my facebook comment. I did a MPG check on my camaro today and got 9.5 mpg almost all highway driving.
Better then the 4mpg I got when I played with megasquirt.
This was doing 65-70mph with my rpm's partying around 3500 the whole trip. 40 miles round trip.
Can't wait till I can start shopping for a transmission replacement. Collaborating with a friend I think a 4L80E with controller wouldnt be a bad idea. That or a T56. But who wants to go breaking stock ten bolts, right?
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Old Mar 30, 2012 | 05:50 PM
  #2  
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Car: 92 RS
Engine: L03 with Holley Sniper EFI, headers
Transmission: T-5, hurst billet shifter
Axle/Gears: 3.08 posi
Re: MPG

Sweet ride! I would go with the T56 if you want better MPG. Then again, I am partial to sticks. 3,500 is a lot of RPMs on the highway and the T56 has overdrive. The 4L80E looks sweet too if you want auto, but I don't know if it has an overdrive gear.
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Old Mar 30, 2012 | 06:55 PM
  #3  
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Re: MPG

The 4L80E looks sweet too if you want auto, but I don't know if it has an overdrive gear.
It does.

This was doing 65-70mph with my rpm's partying around 3500 the whole trip.
It will be much better if/when you can get under 3000rpm at that mph.
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Old Mar 30, 2012 | 07:09 PM
  #4  
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

I think a built 4l80E with overdrive AND lockup will be my future. A built T56 for my power level can't be justified into my budget for what it costs plus the clutch to hold the power.
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Old Mar 30, 2012 | 07:15 PM
  #5  
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: MPG

Th400 with a gearvendors OD? auto 6spd.
Im hunting for a used GV OD unit now myself.

Hows that HP EFI doing? any dyno time on the ride with it? or just all street stuff?
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Old Mar 30, 2012 | 07:50 PM
  #6  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Originally Posted by FSTFBDY
Th400 with a gearvendors OD? auto 6spd.
Im hunting for a used GV OD unit now myself.

Hows that HP EFI doing? any dyno time on the ride with it? or just all street stuff?
I thought about doing a GVOD but the cost of that alone is just as much as a built 4L80E would run. In the end you still don't have a lock up overdrive. a .72 th400 overdrive with a slipping torque converter wont make a big difference unfortunately.

the Holley HP efi has been great. No dyno time, all street time but its been real good. I need to get off my lazy *** and do some fine tuning but the self tuning feature has made this car a real breeze to drive. I need to tweak the hot start fueling and hot start fuel enrich and then I think I will be set. I also wanted to play with my cruising AFR to squeeze out some more MPG.
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Old Mar 30, 2012 | 08:56 PM
  #7  
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Re: MPG

I like the 4l80E idea. I am partial to automatics. And maybe you should look into getting a vigilante stall converter. They act pretty tame under normal driving and really only stall out under harder acceleration.
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Old Mar 30, 2012 | 09:01 PM
  #8  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Ya I hear good things from that brand. Something that will be looked into when the time comes.
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Old Mar 30, 2012 | 09:33 PM
  #9  
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: MPG

if ya go the 4L80e way get ahold of this guy
http://www.twistmachine.com/Manumatic_Systems.html
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Old Mar 30, 2012 | 09:48 PM
  #10  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

That ****'s expensive. I was looking at hughes 750hp rated for 2k. Manual valve body.
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Old Mar 30, 2012 | 09:59 PM
  #11  
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: MPG

doesnt going with a 4l80E with a MVB kinda defeat the purpose of it..lol
Set the shift points via a controller and forget it.
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Old Mar 30, 2012 | 10:12 PM
  #12  
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

For me, it is more about having an overdrive with lock up.
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Old Mar 30, 2012 | 11:56 PM
  #13  
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Re: MPG

Yeah a manual valve body would be cool. I plan on doing that to the Dodge myself. especially the megashifter allows for easy up shifts and down shifts.
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Old Mar 30, 2012 | 11:58 PM
  #14  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Thats what I have, I love the b&m megashifter. Someday I am going to shorten the handle on it. Looks a little funny sitting so high in my manual shift boot.
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Old Mar 31, 2012 | 12:12 AM
  #15  
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Re: MPG

I know you have the shifter that is why I said that! dammit!
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Old Mar 31, 2012 | 12:13 AM
  #16  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Dammit son, calm down! I thought you were implying you had one you loved as well.
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Old Mar 31, 2012 | 12:35 AM
  #17  
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Re: MPG

I do love mine. Although I am lazy and never went in and fixed where it is messing up at...Sorry I got a lil excited there!
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Old Mar 31, 2012 | 12:41 AM
  #18  
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Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

What's messed up with it?
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Old Mar 31, 2012 | 01:33 PM
  #19  
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Re: MPG

Originally Posted by TraviZ
What's messed up with it?
well where it mounts to the floor it is as far back as it can go. But when I upshift/downshift with the shifter the one part comes up and kicks the plastic. which then causes the front plate mounting bolts to come out being that the holes there are only for looks and do not really hold anything down. I am really thinking about making some sort of brushed aluminum console cover for it at some point.
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Old Mar 31, 2012 | 04:42 PM
  #20  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

I had the same issue and resolved it with a dremel. I narrowed down the ratcheting tooth as little as possible while still working as a stop and I cut the metal brace and some plastic to allow clearance up into my boot. Works like a charm and unnoticeable from inside looking at it.
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Old Mar 31, 2012 | 10:36 PM
  #21  
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Re: MPG

Originally Posted by TraviZ
I had the same issue and resolved it with a dremel. I narrowed down the ratcheting tooth as little as possible while still working as a stop and I cut the metal brace and some plastic to allow clearance up into my boot. Works like a charm and unnoticeable from inside looking at it.
Sweet I will look into that. The problem I have is. Whenever I do something I try and get it done in one day or whatever. And then it works so I keep putting it off. I am wanting to find a different daily so I can do more projects on the camaro.
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Old Mar 31, 2012 | 10:54 PM
  #22  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Different daily is a great idea!
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Old Apr 2, 2012 | 12:20 AM
  #23  
antoine's Avatar
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From: vacaville,ca
Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: MPG

I say a built 700r-4
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Old Apr 2, 2012 | 12:26 AM
  #24  
antoine's Avatar
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From: vacaville,ca
Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: MPG

https://www.thirdgen.org/forums/engi...004r-high.html
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Old Apr 2, 2012 | 10:47 AM
  #25  
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Re: MPG

Traviz has something against the 700r4
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Old Apr 2, 2012 | 03:54 PM
  #26  
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Kill it with fire!
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Old Apr 2, 2012 | 09:54 PM
  #27  
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Now that I am home from work I can emphasize more on the hatred for 700r4's.
So the link is to a level 10 high horsepower? No guaranteed numbers? No thanks. I blew through my stock 700, a rebuilt 700 and a built B&M 700. I am done with those relying on a properly-tensioned-cable-to-not-blow-up transmission. Only thing I Miss is overdrive. A more modern 4L80E loosely designed around the well known strong TH400 sounds like a lot better option, if I kept it electronic then that would be even sweeter with programmable shift points. If I go manual valve body then I still would feel secure with a better built transmission with 20 years of technological improvement behind it.

PLUS! the gear ratio is much nicer in the 4L80E
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Old Apr 2, 2012 | 10:09 PM
  #28  
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Engine: gone
Transmission: gone
Axle/Gears: gone
Re: MPG

Well it isnt that hard to dial in the TV cable...but I agree with the 4L80E. Just go that route and be done.
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Old Apr 3, 2012 | 01:38 PM
  #29  
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: MPG

Try setting TV cables on a throttle body without the provisions aka 4BBl TB like I had to work with.
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Old Apr 3, 2012 | 04:19 PM
  #30  
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Re: MPG

I am sick of hearing your excuses okay? lol
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Old May 15, 2012 | 01:46 PM
  #31  
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From: Santa Rosa, Cali
Car: 1988 IROC 5.7 Money Pit
Engine: (being built; modified TPI ZZ4
Transmission: 2200 stall/ stage 3 700R4
Axle/Gears: freshened 3.27 in 9.bolt/
Re: MPG

The 700 Was a phenominal new tranny design upgrade that melded perfectly with EFI and small block engines. Anybody remember their parents having to get the early 200's rebuilt after only 60k miles? But they never where designed to deal with the Big Block torque that's hitting Travis's rear tires at the starting line launch now, along with the dead blow hit of each shift. Remember, he's in the 10 second range on street tires at the track.
With the new computer 4L80E trans, he eliminates not only his weakest link at high rpm shifts, but he will even gain better shift timing consistency. For those who like to win on the 1/4 mile; The more concistancy = Trophies. Trophies are Good. Lotz of trophies suggests you're a winner. Girls like winners. So do their Moms. Therefore, if you've always wanted to do a mother & daughter tag team, don't use a 700r transmission.
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Old May 15, 2012 | 01:48 PM
  #32  
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Engine: gone
Transmission: gone
Axle/Gears: gone
Re: MPG

Originally Posted by neagan
The 700 Was a phenominal new tranny design upgrade that melded perfectly with EFI and small block engines. Anybody remember their parents having to get the early 200's rebuilt after only 60k miles? But they never where designed to deal with the Big Block torque that's hitting Travis's rear tires at the starting line launch now, along with the dead blow hit of each shift. Remember, he's in the 10 second range on street tires at the track.
With the new computer 4L80E trans, he eliminates not only his weakest link at high rpm shifts, but he will even gain better shift timing consistency. For those who like to win on the 1/4 mile; The more concistancy = Trophies. Trophies are Good. Lotz of trophies suggests you're a winner. Girls like winners. So do their Moms. Therefore, if you've always wanted to do a mother & daughter tag team, don't use a 700r transmission.


your reasoning is very sound and that is some funny ****!
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Old May 15, 2012 | 02:02 PM
  #33  
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From: Santa Rosa, CA
Car: 90 IROC-Z
Engine: LB9
Transmission: M5 5spd
Axle/Gears: 3.42 POSI
Re: MPG

TraviZ I am guessing you never put in my 3.08 rear we traded? I'm all swaped with your old 3.42 rear with my 19" rear 18" front Corvette wheels. I would post some picks, but I never can get this site to do it!
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Old May 15, 2012 | 06:31 PM
  #34  
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Axle/Gears: 3.27/9-bolt
Re: MPG

For those who like to win on the 1/4 mile; The more concistancy = Trophies. Trophies are Good. Lotz of trophies suggests you're a winner. Girls like winners. So do their Moms. Therefore, if you've always wanted to do a mother & daughter tag team, don't use a 700r transmission.
neagan - You are a gem sir.
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Old May 15, 2012 | 07:15 PM
  #35  
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From: Santa Rosa, Cali
Car: 1988 IROC 5.7 Money Pit
Engine: (being built; modified TPI ZZ4
Transmission: 2200 stall/ stage 3 700R4
Axle/Gears: freshened 3.27 in 9.bolt/
Re: MPG

Okay, so I got carried away with the smart *** part (can u tell i got thrown out of class a lot as a child?), but the REAL POINT is that the 700r came from the 200 which was only designed for lightweight midsize carz. The 700R has done exceptionally well in our 3rd gens, given that lots of us have started out with high mileage 20 year old versions with the original trans, still untouched, waiting for us to add up to 30 more hp and start shearing the sun-gear and other parts.

It's like the great looking mother who's taken REALLY good care of her self and has the... Oh, never mind (botox and all that).

This new series of automatics is supposed to be designed for Heavy Duty size carz & Pickups with the added benefit of being computer controlled for the government mileage issues.

What Travis has done is simply-truelly- amazing, and he has my TOTAL respect. I was fortunate enough to see that tramp steamer he's driving when he was still attempting to figure out how to strip the paint out of the engine compartment and everything was a real mess. He has more determination then most and it's great to see his efforts come to life. He's just kept at it and kept at it. It's been like watching the Camaro Terminator!!!
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Old May 15, 2012 | 07:29 PM
  #36  
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Engine: gone
Transmission: gone
Axle/Gears: gone
Re: MPG

Oh great. Now Traviz head get's even bigger since he is now the Camaro Terminator! haha
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Old May 15, 2012 | 07:33 PM
  #37  
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Re: MPG

Yeah this guy has always thought Travis was the bees knees for some crazy reason, lol. He is a determined 3rd gen savage though, I've always given him that.
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Old May 15, 2012 | 10:37 PM
  #38  
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From: Santa Rosa, Cali
Car: 1988 IROC 5.7 Money Pit
Engine: (being built; modified TPI ZZ4
Transmission: 2200 stall/ stage 3 700R4
Axle/Gears: freshened 3.27 in 9.bolt/
Re: MPG

He's just always had such a quick, wicked sense of humor and you gotta admire his learning curve. In the old days, he really kept this thread alive when there was nothing going on and it was dead boring. He was just so funny all jacked up on caffiene (or whatever it was)!
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