Which is better for FI motor??
#21
Originally Posted by Black Blown 02
I think its a huge uphill battle with a centrifugal supercharger. If I had it to do over, I would've waited for the Radix to come out. I got my ATI about a year before it was released.
I really believe I would be faster with a radix@10psi and a 3000 stall, than I am with the ATI@11psi and a 3800 stall. You need horsepower under the curve to get these heavy things going.
Probably not what you want to hear, but an 8psi radix kit, and TOG's with your current stall will get you damn close to low 13's. Have you started installing the vortech yet?
I really believe I would be faster with a radix@10psi and a 3000 stall, than I am with the ATI@11psi and a 3800 stall. You need horsepower under the curve to get these heavy things going.
Probably not what you want to hear, but an 8psi radix kit, and TOG's with your current stall will get you damn close to low 13's. Have you started installing the vortech yet?

#22
Originally Posted by greentahoe
Ya, Im kind of kickin myself in the ***. It seemed like the vortech with some other stuff would be more fun and faster, but its becoming more obvious that I was wrong. I already had the tuning covered, but I was just being stupid and wanted to be different. I havent installed it yet, but I really dont see a way out without losing my ***. Its still in the box


#23
I really believe I would be faster with a radix@10psi and a 3000 stall... You need horsepower under the curve to get these heavy things going.
...but an 8psi radix kit, and TOG's ...
...but an 8psi radix kit, and TOG's ...
#24
Originally Posted by Black Blown 02
I wonder if vortech or the vendor you bought it from would let you return it?
Onyx: I hope you get before and after times Id love to see.
#26
Originally Posted by greentahoe
Ya, Im kind of kickin myself in the ***. It seemed like the vortech with some other stuff would be more fun and faster, but its becoming more obvious that I was wrong. I already had the tuning covered, but I was just being stupid and wanted to be different. I havent installed it yet, but I really dont see a way out without losing my ***. Its still in the box


Well you're hear now to learn before doing anything. If you can return that Vortec and that Alk kit, I'd do it. The Radix is what you need for your Tahoe/Yukon. It makes power off idle where it's really going to make a difference. That centrifugal kit is better for light, top end racers.
#27
Hate to keep bringing this up, but maybe if you told the vendor you'd be trading for a radix, they'd go for it. It can never hurt to call and at least feel them out. Even if you have to eat shipping.
#28
Originally Posted by Black Blown 02
Hate to keep bringing this up, but maybe if you told the vendor you'd be trading for a radix, they'd go for it. It can never hurt to call and at least feel them out. Even if you have to eat shipping.
#29
Originally Posted by greentahoe
This is a great point. I guess it wont hurt to try. I'll make it clear that it's up to them. I just dont want to seem unappreciative of the great deal. I was going to order the injectors tommorow, so thats $450, then the alk kit is another $400. I wish I wouldve just gone with the Radix to start. 

Thread
Thread Starter
Forum
Replies
Last Post
dantheman1540
Tuning, Diagnostics, Electronics, and Wiring
4
Sep 18, 2015 03:03 AM



