Topgunz - air to air upgrade

G3RSTY7 · 05-29-2019, 10:51 AM

Is this the 9lb boost pulley? My best measurement is it’s 2.85” but i could really use a caliper for this stuff. It was included with the kit but I didn’t use it cuz I’m an idiot as overboosting is hard to do at this elevation.
Seems like I should really be using it because I’m already running tbatt’s no-slip kit (on the 8lb pulley—like an idiot) and am guessing that’s better designed for the 9lb setup.
And using this 2.85” pulley for scale on the idler below (guessing maybe 2 3/8 sound about right?) that is the idler I need to change out to the gates 36225 which I think is a 3”?

"Z"en · 05-29-2019, 11:53 AM

Quote:

Originally Posted by G3RSTY7

Is this the 9lb boost pulley? My best measurement is it’s 2.85” but i could really use a caliper for this stuff. It was included with the kit but I didn’t use it cuz I’m an idiot as overboosting is hard to do at this elevation.
Seems like I should really be using it because I’m already running tbatt’s no-slip kit (on the 8lb pulley—like an idiot) and am guessing that’s better designed for the 9lb setup.
And using this 2.85” pulley for scale on the idler below (guessing maybe 2 3/8 sound about right?) that is the idler I need to change out to the gates 36225 which I think is a 3”?

If your running the Tbatt's kit, 2.87" pulley (a.k.a. the 9psi pulley) will be fine. No need to change its idler on the serpentine side.

TopgunZ · 05-29-2019, 01:56 PM

Oh man! You hadn't been running the high boost pulley I included with the kit? That is totally why you are seeing such low numbers. Get that baby on there and re-tune. You will pick up some good power.

Yes, the stock tensioner will pick up the slack.

Quote:

Originally Posted by G3RSTY7

Is this the 9lb boost pulley? My best measurement is it’s 2.85” but i could really use a caliper for this stuff. It was included with the kit but I didn’t use it cuz I’m an idiot as overboosting is hard to do at this elevation.
Seems like I should really be using it because I’m already running tbatt’s no-slip kit (on the 8lb pulley—like an idiot) and am guessing that’s better designed for the 9lb setup.
And using this 2.85” pulley for scale on the idler below (guessing maybe 2 3/8 sound about right?) that is the idler I need to change out to the gates 36225 which I think is a 3”?

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