Pulleying down

[18stormtroopergt]

2018 procharged gt premium . Thinking about dropping pulley size . Running 3.70 now on p1sc-1 making 6.5 lbs want to get to 9lbs . Does anyone know the increase ratio .

Thanks in advance

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[18stormtroopergt]

Pulley size to lbs increase?

 

[ProChargerTECH]

Sounds like its an HO kit with shared 6 rib? If so you will need at least a 3.50" and a few more RPM to get there. I personally don't like going smaller than that, due to the possibility of belt slip due to the 6 rib

 

[18stormtroopergt]

What would it cost to swap everything to 8 rib . Do they make a kit for that .

 

[Jackson1320]

What would it cost to swap dre to 8 rib . Do they make a kit for thÿat .

you can run a overdrive balancer to get more boost without belt slip. you can convert to a 8rib. i have converted mine to 8rib. i can give you a parts list if you need. it's about $1000-$1500 depending on a few things.

 

[18stormtroopergt]

Yes please do thanks

 

[ProChargerTECH]

You can either do the full conversion to the 8 rib (dedicated drive) which is pretty pricy... Or just run an overdrive balancer for now which will net you a larger crank pulley and a bit more boost (fairly cheaper alternative).

 

[18stormtroopergt]

Searched for overdrive balancer with no luck by any chance do you have a link for that

 

[Jackson1320]

Searched for overdrive balancer with no luck by any chance do you have a link for that

your joking right?
https://www.jpcracing.com/ati-2011-5-0-coyote-harmonic-balancer-20-overdriven/

http://performancemods.com/ati-20-o...ote-for-centrifugal-superchargers-ati-918048/

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