Vortech / Paxton 8-rib upgrade

[rainmaker]

Anybody running the 8-rib upgrade for your Vortech / Paxton? I'm about to buy the kit but after researching further I discovered that Vortech is modifying / re-machining the stock OEM 6-rib damper. I assumed for $700+ they were including an ATI or Romac damper but that's not the case. $700+ becomes $1,300+ if I buy my own ATI 8-rib damper :frusty:

whats everyone else doing? Is the Vortech modified OEM safe to run?? Is it SFI approved?

Sponsored

 

[daltron]

I think the ATI damper is by far the best available. I will leave it at that.

 

[Pincushin3819]

How much power do you plan to make? Hasn't the 6 rib held up to 800+rwhp?

 

[thatonenozz]

How much power do you plan to make? Hasn't the 6 rib held up to 800+rwhp?

I'm making 765whp on the 6 rib. Stock pulley

 

[beefcake]

we can do the 8 rib without the balancer and substitute and ati at an additional charge

 

[Pincushin3819]

I'm making 765whp on the 6 rib. Stock pulley

Very nice! What pulley?

 

[thatonenozz]

Very nice! What pulley?

3.8 I believe? I bought the kit from Beefcake so he can verify

 

[Pincushin3819]

3.8 I believe? I bought the kit from Beefcake so he can verify

Yeah did some reading stock pulley is 3.8 that's insane power for out of the box. So it's safe to say you picked up around 100 rwhp with e85 over 93. DAMMNNN. :clap2:

 

[thatonenozz]

Yessir.
Here's the 91 dyno


Here's the E85 dyno before and after GT350IM

 

[Pincushin3819]

Am I reading this right, that you lost power through the whole rpm rang except for the last 1000 rpms with the 350? Did you drop any boost when you switched to the 350? Thanks for sharing & OP sorry for the hi jack!

 

[thatonenozz]

From the looks of it you're right about that, but these were on 2 different days about 3 months apart. Not sure how big of a factor that plays but it doesn't feel like I lost anything down low and it screams up top so I'm pretty happy with it. We didn't log boost on the most recent pulls, so I'm not sure.

 

[Pincushin3819]

From the looks of it you're right about that, but these were on 2 different days about 3 months apart. Not sure how big of a factor that plays but it doesn't feel like I lost anything down low and it screams up top so I'm pretty happy with it. We didn't log boost on the most recent pulls, so I'm not sure.

Yeah you definitely have a monster for sure. I wasn't knocking the 350 at all I was just surprised to see that. From what I've been reading the 350 wasn't losing a whole lot or anything depending on tuner over the stock. It just look more like a Boss intake. But either way I hope my car is close to what your making on e85

 

[Slamdcoop0428]

Im sure it dropped your boost a bit since its a less restrictive intake manifold.

Sponsored