01 silverado 48L 80e 76mm On3 kit mild cam
01 silverado 48L 80e 76mm On3 kit mild cam 
07-25-2015, 11:14 AM
#6
I believe the AR is 0.88 and it starts boost about 2800. It still needs some tweaking but at least it not a turd. My buddy bought it and there were tons of little things wrong with the truck. It had a pair of 12 inch Efans on it with zip ties going through the radiator. That was just the beginning. Pretty much got those kind of things straightened out so now it's reliable. Original owner used RTV for the drivers manifold gasket and tuner set the rev limiter to almost 7000 rpm. Motor blew us late last year so in went a new 4.8 over winter and I fixed the tune so it would be safe with pump gas. Previous tune had 9 degrees timing at wide open throttle and VE table was no where close to smooth. Timing table had cliffs in it too causing drive ability issues going into and out of boost.
Next fall we plan to do the 6.0L, trans brake and other mods including a bigger turbo.
For now owner is just enjoying it and collecting more parts.
This is a great hobby and i really enjoy helping out guys with their projects, even those who get handed a bag if poo.
Next fall we plan to do the 6.0L, trans brake and other mods including a bigger turbo.
For now owner is just enjoying it and collecting more parts.
This is a great hobby and i really enjoy helping out guys with their projects, even those who get handed a bag if poo.
Last edited by aknovaman; 07-25-2015 at 12:00 PM.
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07-27-2015, 01:44 PM
#11
On The Tree
Join Date: Aug 2013
Location: Lake Stevens, WA
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I can't keep my foot out of my turbo 4cyl... or my 5.3 Silverado. I got 15mpg last tank. was thinking it would probably plummet to 10mpg on boost and 20mpg if I was chill about it.
