This is mainly gear towards those with an early to mid 90's chevy/gmc 1/2 ton x-cab conversion but would be interested in others experiences.
Include the following in your post:
engine displacement ~ modifications (including exhaust)
transmission used (also modifications of)
rear axle ratio
If you have dyno information or track times, feel free to include that as well.
Thanks
Last edited by LSXmyford; 05-15-2008 at 09:21 AM.
2004 5.3 Crew Cab 1500, 3.42's, FLT 4L65E trans, Mods (see sig), dyno 400+, weight ~6,000 lbs, Times 8.62 @ 82 mph 1/8 13.52 @ 99.80 1/4 (with terrible 60 ft!!)
14-16 City
18-22 HWY
2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive
i get a solid 22mpg at 85mph on the hwy
town about 18 0r so
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
MPG: HIGHWAY 9MPG @ 80MPH
HIGHWAY 11 @ AROUND 60MPH
CITY: 5 WHEN ACCELERATING
5.3l V8, HEADERS, EXHAUST, S&B INTAKE, TB SPACER, EDGE TUNER, FABTECH LIFT, 18'' RIMS ON 35''
STOCK TRANNY
DYNO?> NOT YET
TRACK TIMES I REMEBER HITTING A 17.3 WITHOUT MODS
BUT THEN AGAIN IT WIEGHS AS MUCH AS AN ABRAMS TANK
Jeez that is bad.
I get 18-20 on highway.
Making about 15 passes at the track, and doing some racing in Mexico I got 14. Putting around town, I get 16 and with my foot out of it i can easily get 17 around town. My v6 would get 15 no matter what.
Fuel mileage, whats that? 10 gallons a week going to the track, racing and driving home.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
i get right around 15 driving as easy as i can!!
intake and TBS
01 Silverado
11 City
15-17 highway
Gone, but not forgotten!
MAYBE I SHOULD GO GREEN............................................. .................................................. .................................................. .................................................. .................................................. .................................................. .......................
NOT! LOL
THANK GOD GAS PRICES ARE SOMEWHAT STABLE HERE IN LAREDO HAVENT REALLY GONE UP THATS GOOD.
18-20 around town
19-22 highway
346ci Trick Turbo T-76, Comp 918 springs,Magnaflow 3" in/out, 60lb injectors, Nelson Performance speed density tune, Airaid intake.
Stock 4L60E
3.42 gears
12.7@108 1/4 4370 Lbs with fat little driver.
Last edited by GMCwantsLS1; 05-15-2008 at 06:57 PM.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
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