gas mpg with cam and 6spd
my cam is small, 214/214 .563/.563 114lsa, mac midlength headers, carsound cats, stock LS1 intake, ported TB, FTRA, borla catback, some other bolt on's, stock 3.42 gear. i get about 20-22 avg mpg. on trips i have gotten 31-32mpg, but thats only when i can cruise at 80mph. i prob avg on the highway 26-27 and 17-18 around town. not too bad. thats also with no tuning
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
12 Second Club
Joined: Mar 2005
Posts: 1,498
Likes: 0
From: Corpus Christi
wow!! I figured around high teens for city low twenties for highway, I'm suprised at numbers you guys are puttin down, especialy highway numbers. I'm looking at tsp 231/237 .598/.595 112 lsa . I'm not woriied any more 
fuerzaws6
fuerzaws6
Well, dont forget that this requires you to drive like the gas pedal is made out of a cracked eggshell. These are best case scenario numbers, but they are possible, especially on longer trips.
F14 cam and 4.10s I get about 16-18 city and about 23-25 highway.
After the tune is finished should be doing a little better on the mileage. Running on the rich side right now.
After the tune is finished should be doing a little better on the mileage. Running on the rich side right now.
Man that makes me feel good on 4.10 gears I though it would ba a gas eatter. I think Ill do some gears now. Thanks for the motivation. HE HE. Nope just been lazy and though it would eat up a buch of gas. What RPM are you at @ 70MPH?? W/ those 4.10 I was also considering 4.56 and is anyone her running that & what RPM are you at 70 MPH???
Originally Posted by MAXIMO
Man that makes me feel good on 4.10 gears I though it would ba a gas eatter. I think Ill do some gears now. Thanks for the motivation. HE HE. Nope just been lazy and though it would eat up a buch of gas. What RPM are you at @ 70MPH?? W/ those 4.10 I was also considering 4.56 and is anyone her running that & what RPM are you at 70 MPH???
4.10s didnt lower my milage at all, in some cases they helped. I used to keep it in 5th on the highway, but now i use 6th at a lower rpm. I spin about 1900 @ 70 if I recall.
Stock '99 shortblock, LS6 intake, ported TB, AFR 205's, TSP 233/239, 1 7/8" LT headers, 3:90's, 285/30/18's yield low 20's on the highway. Lots of spirited on ramps etc.... can't help it! Love buzzing it past 6500rpm accellerating and hearing the dual 3" roar.