More hp out of vortech

Reply Subscribe

Thread Tools

Search this Thread

May 16, 2008 | 09:33 PM

#21

chaparro78

New Member

iTrader: (2)

Joined: Jan 2003

Posts: 709

Likes: 0

From: Keller, TX

Quote:

Originally Posted by dimebagdolf

When I had my Vortech I was putting down just over 420 whp and 340 lb ft.
with the stock injectors and just running the Vortech fuel system. Car ran great for about 2.5 yrs with ZERO problems. But I was running cams with the stock pulley (3.33) and wasn't relying on more/quicker boost for my power.

I think the arguements about being safe with your fuel system if you're gonna go to the 2.87 pulley are quite valid. You want to make sure you're getting enough fuel in there to keep things nice and cool.

How were you running over 400HP+ on the 3.33 pulley and stock injectors?
Even with cams, makes no sense. Injectors would be at 100% duty cycle and you wouldn't be close to 9psi

May 17, 2008 | 05:01 AM

#22

turtle1678

Thread Starter

Registered User

iTrader: (5)

Joined: Oct 2007

Posts: 210

Likes: 0

From: OH

what will I need to run a 3.12 pulley I have the ss software and I know get a good tune but should I increase my injector size? Anything else?

May 17, 2008 | 06:32 AM

#23

clifftrail

Registered User

iTrader: (1)

Joined: Dec 2007

Posts: 58

Likes: 0

From: ABQ

You can run the 3.12 w/o messing the injectors, many people are, just take it back for a tune when you swap it out.

May 17, 2008 | 07:40 AM

#24

05Z33

Registered User

iTrader: (11)

Joined: Jan 2007

Posts: 1,912

Likes: 1

From: Pembroke Pines

I say upgrade your injector and your fuel pump. You can pick up an intank fuel pump for under 100 bucks. I swapped out my own injectors and fuel pump. I never tried anything like this before , but I just figured what the heck how hard can it be. It was easy. Just follow the instructions on CJ motorsports web site for the fuel pump. Don't forget to get a tune. Also I went with 550cc injectors just in case I wanted to upgrade my pulley to a 2.87 later on.