josh watson at diesel den is bud

 

the 4k gsk is my next mod along with head studs and a timming advance. currently im running no plate star wheel cranked afc slid up and straight pipes

 

You will probably get more power out of it if you tune your afc rather then "maxing" everything out. Get the AFC spring kit and put the lightest spring in. Back your pre-boost screw and starwheel out and adjust n tune them to get the best spoolup out of your turbo. Take the cupped washer out and either grind it down or replace it with a different washer to allow the afc arm travel all the way back, so you have full range adjustability in your setup.

 

A little timing (14-16.6) will help cold starts any thing more hurts them. I'm not saying more is bad, I took mine to 18 this past summer and defiantly noticed a harder start when the temp dropped below freezing. Nuthin bad though

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A little timing (14-16) will help cold starts , much more and it will hurt them.

 

i know before i parked my truck the 10 plate was hurtin mileage on my truck other then my 6

 

x50 on the 4kgsk. my truck was a completely different animal after that.

 

stronger powerband?

 

I had the barrels turned in my pump and yea it made some difference

 

is some the amount or is that bein like big difference? which also depends on turbo's and how much u go

 

I had BD to my pump for me and they couldnt say s**t bout their pumps but i squeezed alittle info out of them. When you bore out the barrel, the only thing your doing is allowing more fuel to come in. But im not sure how much you can bore it.But i could see a difference with it.