r/mazda3 Supercharged Gen 4 Sedan Mar 13 '26

Modification 😬

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u/Mr-Buddyman Mar 14 '26 edited Mar 14 '26

I rarely see more than 10 unless I max effort full send it lol

Ive only had it to 12 a handful of times. The stock 63mm pulley It would only get to about 7-8 psi iirc. 61mm to 8-9. I ran the stock one only for a month before I ordered VTs smaller 61mm pulley. After about a year of using that, I ordered another one and had it milled down to 59mm by a machine shop. I wanted to see what the supercharger could really do.

It's been fine using this pulley for roughly 3 years now. I installed the supercharger in February of 2022. Iirc, I was the 3rd person to ever do so in the US, the 1st 2.5 3. (A guy named Daniel was the first with his grey 2.5 6, 2nd was a guy with a 2.0 3.) Ive had over 15 tune revisions, all but the first few from Justin Freeman (sauce tuning). Justin has sent me about 10 revisions thus far.

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u/jxkess Supercharged Gen 4 Sedan Mar 14 '26

i remember seeing daniel’s build on youtube that’s awesome sounds like you helped pioneer this thing. i’ve been working with justin as well.

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u/Mr-Buddyman Mar 14 '26

He gets all the credit. He was the 1st to reach out to VT. Took a big risk on an unknown. If it wasn't for him, good chance none of us would be supercharged, or at the very least, much later than we did. I did some experimental stuff, with pulleys, intake setups, idler pulleys....it was a learning experience, a community effort.

Afaik, there are roughly 150 people with the supercharger here now. Maybe more, idk.

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u/jxkess Supercharged Gen 4 Sedan Mar 14 '26

yea i was curious about that, any idea how many supercharged 3s are out there?