Magnuson Supercharger, Valve Train and other supporting mods. 2007-2013, 5.3L Chevy Tahoe

[67RS427]

For some reason I can’t get past 200 miles on full tank of gas.

Lmao... I don't even wanna tell you what I get in city driving. Freeway cruising I see 14-15mpg though, just as good as factory if not better.

 

[Chrismnj]

Lmao... I don't even wanna tell you what I get in city driving. Freeway cruising I see 14-15mpg though, just as good as factory if not better.

Well I enjoy driving this truck again, but honestly this week I spent like $500 in gas.

 

[RST Dana]

For some reason I can’t get past 200 miles on full tank of gas.

Sez the guy that wasn’t going to use this toy for a DD. But it’s fun, yes?

 

[Chrismnj]

Sez the guy that wasn’t going to use this toy for a DD. But it’s fun, yes?

Hell yeah is fun, also didn’t plan on doing 90% of stuff that I did to it. Bought this truck new in 2012 till now it only has 45k guess that will change very rapidly now.

 

[Sam Harris]

For some reason I can’t get past 200 miles on full tank of gas.

[emoji1787][emoji23]

 

[Chrismnj]

Looking for recommendations, should I clean my throttle body or just get a new OEM or aftermarket? Was reading on here about people attempting to clean them and having problems after with all kind of codes and problems popping up.

 

[Chrismnj]

ok, decided to clean my TB and MAF, before had idle occurring at 13-14% throttle angle and hard downshift coming to a stop, will see if it helps.

 

[Chrismnj]

Little update on gas mileage I did manage to get 233 miles from a full tank of gas mostly city driving.

 

[Sam Harris]

Little update on gas mileage I did manage to get 233 miles from a full tank of gas mostly city driving.

Sooo.. you’re tired of the maggie then.. well, no worries, I’ll be happy to take it off your hands at a ‘reasonable’ discount. [emoji16][emoji106]

 

[Chrismnj]

Sooo.. you’re tired of the maggie then.. well, no worries, I’ll be happy to take it off your hands at a ‘reasonable’ discount. [emoji16][emoji106]

HELL NO, she is too much fun, 233 in city driving is a great result

 

[HiHoeSilver]

ok, decided to clean my TB and MAF, before had idle occurring at 13-14% throttle angle and hard downshift coming to a stop, will see if it helps.

View attachment 222846

How'd this go?

 

[Chrismnj]

How'd this go?

not sure, waiting for BB to look over my driving log, but still experiencing hard downshift.

 

[HiHoeSilver]

not sure, waiting for BB to look over my driving log, but still experiencing hard downshift.

Where's the tps% now?

 

[Chrismnj]

Where's the tps% now?

I figured would drive it for a while before checking that, just in case TB need to recalibrate not sure if I am correct on that, but I hope it will be in 6-8%

 

[HiHoeSilver]

I figured would drive it for a while before checking that, just in case TB need to recalibrate not sure if I correct on that, but I hope it will be in 6-8%

Interested to hear results. When I did mine, it went from 12.9 to 2.7

 

[Chrismnj]

Interested to hear results. When I did mine, it went from 12.9 to 2.7

Don’t forget I did cam swap

 

[HiHoeSilver]

Don’t forget I did cam swap

Jah, mon.

 

[Chrismnj]

Ok, I need some help here, what else could cause hard downshift?

 

[randeez]

your foot on the floor

 

[Chrismnj]

your foot on the floor

That will be up shift which is super nice and smooth even when flooring it.