what's this mean? you gonna pulley down and then later have it retuned? Bad idea? Or you waiting to do it all at once? Good idea!

I didn't look at your sig, you have this radix on already? Have you got a chance to run the stock setup yet?

I went from a 3.0 to 2.8. Daily driveability is affected in the sense that I get into boost quicker than I'd like sometimes. IAT's when your hot doggin it will certainly be a factor.

Try the stock pulley on for size and comparison before you pulley down. You can put your metco's on right away, but make sure everythig is working as it should first (tune, fueling, ses, ect)

 

If I did it all over again I would....

1. Run the 2.75 pulley full time
2. Maximize my tune for that pulley with as much timing as was safe for strip use (say 18-19 degrees with lots of fuel)
3. Buy my own tuning gear so I could keep the strip tune and then make an easy street tune that only had about 75% of the timing. Reflash at the track but stay very safe on the street. You only have to change 2 tables to do this.

Doing this would allow you to run peak boost and be tuned properly, but leave a bit on the table for those special times that you would reflash for

 

I run a 2.75" on my LQ4. With LT's, my cam which has too much overlap, and true duals I see 7psi. I only run 17.5 to 18* of timing. You need to run what you were given with the radix kit and see what it makes on your set-up. Then decide from there how far to step down. NO WAY should you put that pulley on before you tune for it. It would only take one WOT blast and a piston would be gone. Also, I have read that the aluminum pulleys have been known to slip, mine doesnt but I thought I would mention it. Dont forget to buy a shorter belt.

 

haha you said "hot doggin it" lol

 

I did!


Your just jealous you didn't use it first.

 

Going with the 3.0 pulley.
Thanks guys,

Jim