Diesel_brad

what is the advantage to running mass over s/d? for a mildly stock truck?

slow94

there probably aren't any. It is just better for tuning when you add something like a big cam. other than a big cam, SD can be tuned just fine.

giddyup

pro
1. smoother idle
2. better mpg
3. imo,better driveablity
4.10x better throttle response

con
1.$$$$$$$$$$

marc2000gt

On a mostly stock truck, I would say the main the gains would be a couple of mpg, and maybe a better idle. Totally not worth the money spent.

On a very modded truck, I would say it would be easier to tune with and worth the money spent. While I do not have mass air, I do feel it would help with my lean tip in issue, and my cold start idle surge. I want to go this way in the future.

__________________
1994 Red Lightning #1134 383ci by PSI, S-Trim, Trick Flow T/W heads, Trick Flow Box intake, 60lb injectors, Struckby Two Pump Trick, MSD 6AL, Flexalite 295's, Pickrel Magnaflow Exhaust, Art Carr 2800 stall converter, FTVB, LFP Traction Bars, Struckby mass air wiring, PMAS HPX Mass air sensor. Tweecer RT, Wideband Commander, Binary Editor, EEC Analyzer.

1fastbolt

i have recently converted and i'm glad i did can tell a much smoother idle and better gas milage

Blurry94

What do you mean by mildly stock? What do you have planned for your rig now or in the future???

blownnjucied94

how much better are you talkin?

__________________

Red 94, #10 Born Jan 25, 1994
8psi of Powerdyne / 75hp Nitrous / HO cam / 1.7 RR / 30lbs injectors / Two-Pump Trick / Steeda FPR / TwEECer / LM-1 / 1-inch intake spacers / EGR-Smog delete / E-fans / FMS Shorties / Ultraflow's and Bassani Off-Road X-Pipe / FTVB / Mac rear-end girdle / Hughes 2500 Stall / JLP Bars / MSD 6al
Best 1/8 == 8.448 @ 85.11 Nitrous, 60'= 2.023 8.714 @ 80.19 No Nitrous (w/ stall, street tires)
Best 1/4 == 13.116 @ 106. 21 Nitrous, 13.674 @ 100.45 No Nitrous
Red '92, F-150 4x4 on 38's

1fastbolt

i have caalculated it on spped dense i was getting round 13mpg..since i switch with 30lb injectors i'm gettin round 18.7 on highway..money well spent..needed it when i put my cam in anyway

Theautoguy

I chose M/A since I drive my truck through at least 3 seasons and felt I would need to change a Tweecer tune for the wide range of atmospheric conditions we see here in Northern Illinois; I've seen a 40 degree temperature range and/or a 30% range in humidity throughout a day here!

Plus, working 60-70 hours a week didn't give me enough time to get over the learning curve of the Tweecer.

__________________

Diesel_brad

I have plans to install the 5.0 cam and rockers,and some type of heads......down the road a supercharger.. and on the mpg i'm gettin 16-17 highway and 14-15 city

lightning_2000

i have mass air it gets 16.9mpg on highway runs dang good and has 2800 stall so i am very happy
and i am gonna get it tuned in with a tweecer

StruckBy

an aftermarket mass air meter properly calibrated for your injectors and combo is a critical component of a mass air system. When set up that way you can get some great performance with just the kit itself

slow94

I guess the mass air trucks do get better gas mileage. My SD supercharged truck gets between 12-14 city and has gotten 18 on the highway before.

StruckBy

thats some pretty good gas mileage!!

slow94

I guess so. If I drive conservatively I can get about 14 in the city and 18 on the highway. Usually though I will get around 12.5 in the city and 16 on the highway, but sometimes I gotta let the NOVI rip!