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Hopefully someone can help me out I currently have a stage 1 gtm supercharger kit and I'm going to upgrade to 1.5 next week I'm also getting a 90mm pulley
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03-21-2017, 10:40 AM
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#1 (permalink) |
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Base Member
Join Date: Sep 2015
Location: South Florida
Posts: 25
Drives: 2016 PW nismo 370z
Rep Power: 10  |
GTM 90mm belt size
Hopefully someone can help me out I currently have a stage 1 gtm supercharger kit and I'm going to upgrade to 1.5 next week I'm also getting a 90mm pulley but I have no clue what belt size I need I wouldn't know till the pulley gets here so my guy can measure what not but I'm looking to have everything here at the same time so does anyone with a GTM kit with a 90mm help me figure out what size belt I need ? Thanks a lot
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03-21-2017, 01:11 PM
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#2 (permalink) |
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Base Member
Join Date: Sep 2015
Location: CT
Posts: 179
Drives: Spirited
Rep Power: 235  |
From my understanding the same size belt will fit all sc kits. The belt tensioner should be able to pick up the remaining slack when swapping pulleys. Im running the same belt from the kit (Bando 7PK2640) with a 85mm pulley without issues mayb some else can chime in
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2012 370z GTM SC |
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03-21-2017, 01:23 PM
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#3 (permalink) |
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Base Member
 
Join Date: Sep 2014
Location: Akron , Ohio
Posts: 199
Drives: '10 370Z Roadster
Rep Power: 11 |
I have the stage 1 .5 upgrade kit with the 90mm pulley.. Used the same belt size as the stage 1 kit.
Where are you getting the kit? I had many issues purchasing through Gamma.. FYI Purchased in Nov. 2016 |
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03-21-2017, 01:52 PM
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#4 (permalink) | |
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Base Member
Join Date: Sep 2015
Location: South Florida
Posts: 25
Drives: 2016 PW nismo 370z
Rep Power: 10 |
Quote:
Thanks guys and I got my kit from someone in cali he used to work for GTM he has his own shop now so he got me all the components |
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03-21-2017, 02:00 PM
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#6 (permalink) |
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Base Member
Join Date: Sep 2015
Location: South Florida
Posts: 25
Drives: 2016 PW nismo 370z
Rep Power: 10 |
w outlet and 3" Vband Inlet
1 $500.00 USD $500.00 USD Custom Fab 3" Inlet Pipe w/ Vband and Velocity Stack 1 $160.00 USD $160.00 USD 90mm 7rib S/C Drive Pulley 1 $132.00 USD $132.00 USD Air Filter 1 $67.00 USD $67.00 USD GTM Flat Plate Motor Mount 1 $499.00 USD $499.00 USD Subtotal $1,358.00 USD Shipping $0.00 USD Total $1,358.00 USD Amount paid $1,358.00 USD Amount due This is what he got me and what he's charging me |
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03-21-2017, 02:03 PM
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#7 (permalink) | |
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Base Member
Join Date: Sep 2014
Location: Akron , Ohio
Posts: 199
Drives: '10 370Z Roadster
Rep Power: 11 |
Quote:
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03-21-2017, 02:04 PM
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#8 (permalink) |
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Base Member
Join Date: Sep 2015
Location: South Florida
Posts: 25
Drives: 2016 PW nismo 370z
Rep Power: 10 |
The guy who installed my kit said my stock tensioner already is not tensioning enough so he doesn't see it picking up the rest of the slack is replacing the tensioner a usual thing with this kit ?
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03-21-2017, 02:05 PM
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#9 (permalink) |
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Base Member
Join Date: Sep 2015
Location: South Florida
Posts: 25
Drives: 2016 PW nismo 370z
Rep Power: 10 |
No I currently have 2.5 inch maf pipes the ones that came with the stage 1 kit my tuner said it wouldn't matter changing them as I tune by ecutek and he uses some GTR thing I don't quite remember lol but he said 3inch maf pipes aren't necessary
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03-21-2017, 02:12 PM
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#10 (permalink) | |
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Base Member
Join Date: Sep 2014
Location: Akron , Ohio
Posts: 199
Drives: '10 370Z Roadster
Rep Power: 11 |
Quote:
Let me know how things work out! I still have my 2.5 pipes... Maybe that's my torque issue?????? Any way, I used the same belt and I have the same setup as you will have. What pulley did you have on the stage 1? |
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03-21-2017, 02:19 PM
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#11 (permalink) |
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Base Member
Join Date: Sep 2015
Location: South Florida
Posts: 25
Drives: 2016 PW nismo 370z
Rep Power: 10 |
Pulley size is actually unknown I never changed it and we didn't measure it before I put the kit on as I bought it used I'll know once we replace it with the 90 mm but the pulley only made 6 psi 370whp 340 torq
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