89formula#1

hey guys i was just over at my local dealer to order a clutch ball and i was lookin aroudn and i saw a 82 transam aniversay car withh liek 30k on it in the showroom. looks brandnew. anyways there was also a 02 transam convertable in there and the window sticker said 17city and 28highway. I was liek wow thats amazing. then the grandam sitting next to it is a v-6 and saiys 17 city and 29highway. now i don't see how this is possible. we are talking about a 1mpg difference from a no power v-6 to a crazy power LS1. now is this just a joke from the factory or wuts going on??

NTChrist

There's lots of things to consider when gas mileage is in question, other than just horsepower.

Things like; torque, what throttle percentage is necessary to move the car, gearing, wind resistance, rolling resistance, etc.
Those numbers are impressive tho.

V8Astro Captain

iTrader: (1)

I drove my brothers '01 Z-28 around all summer. I got 30mpg highway in it.

zippy

no it's not a lie. if they were lying about the numbers, the cafe fines would be outragous.

Vader

No, it's not a lie. The USEPA mandated window sticker from my '96 Impala lists 15/27, and it weighs 4,500 pounds, and can nearly fit that Grand Am in its trunk. Of course, if you drive it like you want to get 27 MPG on the highway, you shouldn't have bought something like that in the first place....

ME Leigh

ITs all about engine effeciency and oh yeah double over-drive!! The 405 HP LS6 in the ZO6 actually gets +1 mpg better.

Vader

See? Just another reason to scrap all those Toyotas, Hondas, and Nissans and make more Corvettes - it's the environmentally friendly thing to do....

Chris89GTA

iTrader: (2)

no thats true dood... my buddy has a 99 WS6 and gets 32 mpg on the interstate... thats what the extra overdrive is for in thoes cars... 6th gear is like .5 or something..

dunerida82

Overdrive will keep that single tank of fuel burnin forever it seems like, such as on my 305TBI using a T5. Not even a quarter tank from LA to San Diego. Woot.

Jim85IROC

iTrader: (2)

Even with the auto you can knock off nearly 30mpg. My buddy has a 99 SS with the auto and averaged 28mpg on a trip to NH, which included some stop & go and a lot of hills.

rx7speed

that's it vader. lets step out for a "talk" foo.


yeah the LS1 beats a few cars on that subject... but lets see the LS1 do as good as the honda insight...


come on wouldn't like be grand souping up an electric 3 cyl hybrid car that stock does 0-60 in about 11-13 seconds

ME Leigh

Yeah, but then it would get worse gas mileage then a LS1. And have 1/5 the power!!

rx7speed

less gas milage then the LS1?

the hybrids are getting about 60-70mpg city/hwy

even if you hop them up a little I doubt they would fall below LS1 gas milage

faster.. I doubt it though

Zepher

iTrader: (1)

One mod will drop the mpg on a 6 speed car dramatically.
4.10 gears kills mpg. 70mph tachs at 2K in 6th

rx7speed

ok how often does the LS1 really use 6th gear?

Zepher

iTrader: (1)

With 4.10's, all the time. With 3.42's, only on the highway at 60+mph.
I have to cruise in 5th at 35-45mph to keep the rpms below 2K.

AJ_92RS

OK...... ya wanna play fair???

How about making an LS1/hybrid. See what kinda MPG it gets then??

I'd be willing to bet it would get AT LEAST 80% the MPG the Honda (S)InSight (UGLY!!!) gets.

I once had a '94 Z28/ 6pd and I got 28 MPG on a 5 hr trip, plus add ~45 minutes of Chicago traffic (i.e. 25mph, stop and go).

Heck...... my car now has ~185K miles on the stock motor, some mods, and city/traffic combined I get 20-21 MPG with a Jet Stage II chip!!! My wife's '93 Mazda MX6 with a 2.5L- 5 speed (164K miles) only gets 22-23 MPG with her "feather light" foot.

What's the point? I got 170 BHP@4000 RPM and she has 160 BHP @6500 RPM. She has to spin nearly twice as many RPMs to get the same HP?? Someone was saying "If we do that, it'll save gas ............. right?"

ME Leigh

Hop one upto the performance, handiling and power levels of a LS1 and it will get about 8mpg.

Vader

Notice I didn't mention Mazda nor Subaru? But I DID forget to mention the biggest over-hyped import, the Mitsubishi. And I intentionally left out Hyundais, and Kias, since they tend to scrap themselves in short order...

V8Astro Captain

iTrader: (1)

I don't mean to sound like a dick, but if you buy a Z-28 for gas mileage then you're an idiot

88 WS6 TransAm GTA

iTrader: (1)

Hey, I was lookin at both of those cars a couple weeks ago! I dont think theyre ever gonna sell that 84 Pace Car... been there for ever! It sure is damn clean though!

89formula#1

oh 84 lol, i knew i was off. yea its real clean. but man are them wheels hideous. most beautiful car there is the 02 transam ramair firbird outside. its liek a copper color but its so beautiful. man i woudl do anything for that badboy

rx7speed

honestly I doubt the LS1 would get 80% of that

partly due to no space to even really put much of an electric motor plus battery pack in there. to fit one in you would have to add more weight... the car is already heavy. then comes aerodynamics, and drag. remember these little electric motor's aren't the strongest little things out there


all in all if you put an electric motor in there the performance level would prolly go down and the gas milage might go up a tad but not much I would guess

rx7speed

how do you figure that


I have seen many cars go way past it and get about the same gas milage

rx7speed

thta was to vaders comment

"See? Just another reason to scrap all those Toyotas, Hondas, and Nissans and make more Corvettes - it's the environmentally friendly thing to do.... "

AJ_92RS

Who said anything about putting it in a Camaro or Firebird??

AJ_92RS

BTW......

A friend of my dad has one and he gets 60 city/50 highway.

And yes you read that right. You get more in the city than the highway because the gas motor does most of the work on the highway.

Of course he has an automatic, so the stick shift may be different.

Morley

But the only looks you get in one of those things are looks of disgust.

91FireChicken

so anyway, who gives a flying %$#&$@% about the piece of ^%$#&# insight? heh.. could've sworn this message board was more about horsepower....

my real reason for replying ... on a trip from NC to NY a few months ago I got about 26mpg going 90mph half the time (anywhere from 60-90 the rest of the time) ... so I'd guess I could get damn close to 30mpg in my car.. this isn't TOO impressive, but I do low 15's in the 1/4.. how many imports will do that? get 30mpg highway and the 1/4 in 15s? pretty impressive for over twice the displacement of all of them.

rx7speed

ok you say this message was about horsepower yet everyone is honestly quite a few imports are comming out in the mid to low 15 second range.... most get the gas you are if not better


and some are running faster then you

please don't hate the car cause the owner