Quote:
Originally Posted by tomm.brz
the "GT2" refers to the new black-painted charger with improved reliability
So the standard kit is called GT2 V2 Supercharger
It's got a 39mm restrictor in the intake and a 90mm pulley.. it tops boost around 0.6bar and has more boost down the curve
The V3 kit (if it's still in sale and it's not a old stock) probably will also contain the same GT2 charger ... the GT charger is the old one light grey coloured
It was created mostly for the US because some States only have 91octane
So the V3 Supercharger kit will have no intake restrictor, a bigger suction pipe (the pipe between air filter and inlet of the charger) and a 110mm pulley
The 110mm pulley will give less boost on low/mid rpm, but will reach an higher boost the higher you climb the engine rpm
Since it has less boost overall, it will have lower intake temperature but the bigger suction pipe helps to increase the air flow rate
It will also have more peak power than the v2 restricted
There is also a 100mm pulley upgrade for the V3 kit, they sell it for e85 since it will reach almost 1Bar of boost at high rpm.. but if tuned, it can be run also with 93 oct
The most powerfull combination would be a V3 kit with a 90mm pulley, or a V2 kit without restrictor and with a V3-suction pipe, but it's not simple to manage even with 93oct
Will also require bigger injectors even with 93oct
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Thank you for the great response. I was hoping to find a V3 with the HKS Flasher. From what you're saying It sounds like I still want the V3.