gas mpg with cam and 6spd
09-15-2005, 01:07 PM
#2
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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
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09-15-2005, 08:00 PM
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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
09-15-2005, 08:33 PM
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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.
09-16-2005, 11:54 AM
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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???
09-16-2005, 12:00 PM
#14
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.
09-16-2005, 12:17 PM
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232/234 TSP torquerv.2 with 4.11's: 4.11's multiply torque without adding more strain on engine, so increase efficiency.
Last tank was 27mpg, all spirited street miles.
Last tank was 27mpg, all spirited street miles.
09-18-2005, 02:57 PM
#20
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.