Vortech Smaller 3.12 pulley help ? - Page 2 - Nissan 350Z Forum, Nissan 370Z Tech Forums
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post #11 of 26 (permalink) Old 10-10-2007, 11:45 PM
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Hey bud! thanks for all the info it was a ton of help. I have installed the 3.12 pulley with the belt you recommended and it works great! I'm going to tune it Friday so hope fully I'll have some dyno sheets to post soon.
The 3.12 will build more power than a 3.33 pulley- even without a tune. If you are running the stock vortech tune, you should be super rich.

I'd recommend working with a wideband if you can.


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post #12 of 26 (permalink) Old 10-21-2007, 01:06 PM Thread Starter
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Well went to tune on Friday 10/12/07 at Performance Factory in Orlando and my SS box is no good. It only let the motor rev to 2500rpms. This is the second time this has happend to me. So I decided to junk the SS box and upgrade to the Turboxs. Went back on Saturday 10/20/07 and junked the SSbox along with the inline fuel pump and fmu. Upgraded to the Turboxs utec, 650cc injectors and walbro fuel pump. Final dyno was 380whp and 323wtq ! Very satisfied with Performance Factory. The were very helpful and answered all my questions and gave very good prices on everything. I highly recommend them. Dyno attached
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post #13 of 26 (permalink) Old 10-21-2007, 02:32 PM
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Well went to tune on Friday 10/12/07 at Performance Factory in Orlando and my SS box is no good. It only let the motor rev to 2500rpms. This is the second time this has happend to me. So I decided to junk the SS box and upgrade to the Turboxs. Went back on Saturday 10/20/07 and junked the SSbox along with the inline fuel pump and fmu. Upgraded to the Turboxs utec, 650cc injectors and walbro fuel pump. Final dyno was 380whp and 323wtq ! Very satisfied with Performance Factory. The were very helpful and answered all my questions and gave very good prices on everything. I highly recommend them. Dyno attached
I bought my Vortech set up from Jeremy he is a really good guy to work with. I wish I didn't live so far from Florida, because I'd definetly like him to do a tune for me. I was talking to him a little while back and he's willing to fly up to my area and spend a few days to tune if I could line up enough guys to help split the cost.

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post #14 of 26 (permalink) Old 10-21-2007, 11:12 PM
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If you're in Florida I recommend going to Performance Factory or Japtrix.

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post #15 of 26 (permalink) Old 02-11-2008, 02:34 PM Thread Starter
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just buy the 3.12 pulley
u can install it without a tune but u won t feel the diff. u need a tune....
u have to buy a belt too :
i suggest u buy gates part # is : K060930
do you happen to know if I can use this belt with the 2.87 pulley, also ? or Is there a smaller Gates belt I need? If so do you know what the p/n is for the smaller belt for the 2.87 pulley?
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post #16 of 26 (permalink) Old 02-11-2008, 04:21 PM
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changing pulley's already there Nelli?


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post #17 of 26 (permalink) Old 02-11-2008, 06:12 PM
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the 93 inch belt works for both the 2.87 and 3.12


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post #18 of 26 (permalink) Old 02-11-2008, 07:00 PM Thread Starter
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the 93 inch belt works for both the 2.87 and 3.12
So I already have the belt I need. I'd just have to adjust the tensioner?
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post #19 of 26 (permalink) Old 02-11-2008, 08:35 PM
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post #20 of 26 (permalink) Old 03-11-2008, 10:00 PM Thread Starter
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QUOTE (ambigu0us @ Feb 11 2008, 03:21 PM)
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changing pulley's already there Nelli?
What can I say its addictive! lol
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