A wideband is also a must for good tuning.

 

I don't push the Radix kits. If I were running a 6.0L, I wouldn't own one of them either. The 112H isn't big enough for my taste and the 122H the jury is still out on. They work very well for a bolt on product though. My involvement with the Radix is trying to get the trucks that have them to run the good number. The Radix kit is so simple and problem free that they are about perfect for the average person that buys them. You could very easily buy a Radix kit, have it arrive on a Friday morning, and be running a good number later that night at the track. There are more STS equipped trucks out there that have been to the dyno more times than they've been down the street. That's often the other way around with the Radix. Commonly the Radix runs the number at the track and the STS truck puts down the number on the rollers. More potential, maybe, better results, rarely. Take ten random STS equipped trucks on here and 10 Radix equipped trucks and compare track times. Better yet, compare how much work it was to get to those times also.

 

sounds like a turbo/super charger debate!!! radix is probably the most complete and user freindly kit by my research but the most potential lies in the STS (everyone agrees) i guess its just a matter of how involved someone wants to be or what sound they're lookin to hear..

 

I wouldn't want to ruin his post by having that debate here, but I do agree that if he's not feeling a strong difference with 10psi, there is without a doubt a big problem that should be fixable. The common suggestions of what to check though are another issue since he had the kit installed. Who ever installed it should have checked all of that stuff before it left. That's why he paid to have it installed.

 

I agree too an extent. When someone shows up with "their parts" and asks to have them installed, bets are off. If there is a problem with the parts, like the PCM problem, that isn't really on the installer. I think the guys (installer shop) were so busy trying to get the thing to even idle with the bad PCM that they didn't even drive it, knowing it was coming back. (I would think that with all of the tubing and elbows and such, some adjustment is going to be inevitable after the initial install). I stopped by that night and they were until after 9pm trying to figure out why it wouldn't idle. What was keeping the hood from shutting?

 

it was night and day diffrence when i installed my intercooler on the 6.0....heat was the issue at 8-10 psi....even at low boost it would pull timing...you prolly have the same issue as well...a little logging will tell you what your problem is....

 

It was laying on the ride level sensor which was causing the rattle and the hood wouldn't close due to alot of clamps needing to be turned. Once again I'm not bashing the install shop, I just dropped a bunch of $$ on a new truck along with this kit and expected it to be clean as a pin. When driving home from work last night it rides like a big piece of $@it. I know there is a bunch of bugs to be worked out but after talking with a handfull of people, they said this thing should be pulling like a bull on just 5lbs of boost. Jay and I are doing the logging today to try and square away the issues. The thread wasn't started to knock anyone, I just wanted to know the pros and cons of this system being that I didn't find this site untill after I bought this kit. All my homework was from being on the STS website over the last year building myself up to get a kit. The site shows testimonials and videos of 12 sec trucks that guys are raving about. I just wanted some input on why the thing wasn't pulling that much and what to expect down the road as far as horsepower and drivability. Of course the main reason for the kit was to be a sleeper on late model muscle.

 

hear's my heavy *** pig on sts and 8#'s of boost...yours should be just as strong when fine tuned....
http://www.ls1truck.com/storage/bud8fanburnoutbq.WMV

 

That's one of the things I don't understand. With this days technology why would a turbo kit even be sold without an intercooler. Even at 5psi an intercooler should be involved.

 

I understand your frustration. I was shocked to see a truck that nice "under the knife" to begin with. As far as the "12 second truck" thing goes, I think you started with the wrong truck. Low 14's would be what I'd expect even when dialed in. As for the 12 second truck testimonials, those trucks have a few other mods besides the STS kit. I doubt anyone ever bolted on a kit and ran right into the 12's. I just think maybe your expectations may have been too high. Good luck today, and be sure to update as soon as you can.