This thing is sick ... I still have some tuning to get down, mostly idle quality and drivability I think. All I can say is ... DAMN.

Anytime I nail it in first it will blow the tires loose. All you can hear is blower, exhaust, and tires squeeling, but it still pulls hard as hell. If you roll into it off the line you can get through 1st with minimal tire spin. Shift at 6000 rpm and drops to about 3300. Once its gets over 4500, it's on like donkey kong up to 6000 again. Once it shifts, its still pulling hard up until I nail the speed limiter at 118'ish. It doesn't take long to get there either.

Some slicks and I feel sure I will have a 12 second slip.

 

What size pulley are you running?

 

3.4 ... seeing about 7 psi

 

Damm looks like you just created a monster.

 

Hey whats up everyone, new guy around here. That truck sounds wicked. Where at in east Texas r u. Ever hit Baytown?

 

A 3.25" will give you 9 psi,a 3.00" will give 11 psi and a 2.75 will give 13 psi with the 5.3.The 3.25" is safe to run day to day on pump premium gas and gives you a pretty good increase in performance.

 

That thing sounds like a BEAST. 7psi?? Congrats man.

ur_faster - Welcome to the site.

 

NICE another fast Radix truck!!! Contact Nelson Performance, he has some 3.25 pulleys in stock!

 

hey nathan! good to hear you got her on the road up and running! congrats man! just wait until you have the wonderful tranny problems.

 

The 3.25 pulley will most liekly be coming in the future. I may re-think that though to avoid tranny trouble for now. After I recover from the unplanned tranny build, I think I will get it professionally tuned on a dyno, probably by Allen, since by then I'll probably be in San Anton.

I took my buddy that helps me a lot for a ride, and made his knucles turn white. That was the first time I rolled into it in first and half way got traction. I kept it pinned til we hit about 115 and let off there. It was almost scary how fast it got there.