Time to tune the EB- had trouble with a 5.3
#1
Senior Member
Thread Starter
Time to tune the EB- had trouble with a 5.3
Too close for my liking. It wasn't a "race". Simply merging onto the interstate behind a coworker with a new 2015 5.3 ext cab Silverado with a 5.3 and 3.08 gears. He is leveled with stock size tires. I am leveled with 34" Duratracs. We left work at the same time and just so happened to hit the interstate at the same time. He was in front and had roughly a truck length in between us. The onramp has a sharp turn and then is straight and you have to really crowd the throttle to merge. I could not pull on him whatsoever to get to the speed limit. From about 35 mph to 70-75 mph. I honestly thought I would be backing off the gas, but I didn't gain on him. I didn't buy the truck to race-that's what my Mustang is for. And I know my truck is heavier. But it has focused my effort to get a mild tune to correct my speedometer and try and get some pep in the throttle. I have lots of delay, horrible mpg (12.6 right now on an uncorrected speedo) etc. I don't drive the truck really hard and I can get an easy 17mpg in the wifes 2015 Expedition with the same route and driving the same as the truck. The Expedition is noticeably more snappy also. So I have no choice- dealer says truck is normal and my "normal" isn't calibrated to theirs. Looks like I will be reading the gazillion posts on tuners. I have about 9K miles now. And to be honest, the truck with stock tires only had an average of 13.9mpg for 1500 miles and wasn't noticeably quicker than with the Duratracs. I can only assume its in the tune based on how the Expedition runs. The truck runs fine, just honestly seems like it has a trailer attached to it all the time.
#2
King Hater
Paragraphs brother.
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Sweatmachine (09-03-2015)
#3
Senior Member
Yep it's the tune. Will be a diff truck after the tune.... Go for it - you will love it!
#5
Senior Member
Personally love my tune...but others like other companies. I compare tunes to smoking meat. Just about everybody likes their own the best...its all personal preference. What works for one doesn't work for another
#6
Senior Member
Thread Starter
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#8
wait. what?
I was disappointed with my fuel economy and acceleration/power as well after a level and bigger LT tires on my 2014.
when I revert to stock for trips to the dealer, I see about 14mpg highway and it's painfully slow. 5 Star 93 performance/tow netted me mid-15s for fuel economy, no better acceleration really but better shifting. I tried out an SSi 93 gen.6 tune and blew holes in cylinders 1 and 4 the first time I gave it a WOT pull so not much to say about that one but I think my spark plugs being out of spec probably had something to do with that and I should have checked them. since the new engine I've been using a 91 octane MPT towing tune, it's as fast as I need it to be and the fuel economy has been great. I can get 18s easy going 75. my only complaint is that it seems like under just the right amount of partial throttle, the transmission hunts between gears and it feels like it's misfiring/sputtering. but the 5 star did that as well.
when I revert to stock for trips to the dealer, I see about 14mpg highway and it's painfully slow. 5 Star 93 performance/tow netted me mid-15s for fuel economy, no better acceleration really but better shifting. I tried out an SSi 93 gen.6 tune and blew holes in cylinders 1 and 4 the first time I gave it a WOT pull so not much to say about that one but I think my spark plugs being out of spec probably had something to do with that and I should have checked them. since the new engine I've been using a 91 octane MPT towing tune, it's as fast as I need it to be and the fuel economy has been great. I can get 18s easy going 75. my only complaint is that it seems like under just the right amount of partial throttle, the transmission hunts between gears and it feels like it's misfiring/sputtering. but the 5 star did that as well.
#9
Senior Member
Apologizing for getting a tune for speed is like apologizing for trying to get laid. Just do it! You'll feel so much awesomer after you do. But it will leave you thinking what to try next.
Edit: What should be apologizing for is letting a 5.3 ****box get the best of you. j/k
Edit: What should be apologizing for is letting a 5.3 ****box get the best of you. j/k
Last edited by biff420; 09-02-2015 at 09:23 AM.
#10
Senior Member
Thread Starter
Apologizing for getting a tune for speed is like apologizing for trying to get laid. Just do it! You'll feel so much awesomer after you do. But it will leave you thinking what to try next.
Edit: What should be apologizing for is letting a 5.3 ****box get the best of you. j/k
Edit: What should be apologizing for is letting a 5.3 ****box get the best of you. j/k