Quest alternator in sr20det

[240sxdrive]

Hey all,

I've researched using a Quest alternator on an sr20det and know you need to drill out the mounting holes and modify the tensioner mounting bracket or buy the Cody Ace mount.

I bought the 125 amp alternator for the 99-02 Quest and when comparing to the stock SR alternator, the pulley seems to stick out farther then the stock alternator pulley would be.

There's about a 3mm difference which I would think would be enough of a difference to cause issue. Did anyone compare the 2 alternators before installing?

In these pics, you can see the new alternator mounting tabs are higher, so when installed the pulley would be farther out. I could probably grind some of the inside tab closest to the pulley and use washers on the inside of the other tab to take up the difference. Both alternators have the same amount of space between the mounting holes.

Did anyone have to grind these mounting tabs? (not the tensioner mounting tab)






In these pics, the mounting holes are lined up and the pulley on the Quest alternator sticks out farther.

[Standard]

I remember reading something about using a 3 rib belt, install it so there's a gap on opposite sides of each pulley so it lines up if that makes sense. Otherwise I'd say just bolt it up install the belt and see if it works, it's a rubber belt, it can stretch a bit and probably wouldn't be an issue. Good luck, let us know what you figure out

[240sxdrive]

I get what you mean with the 3 rib belt and could probably work. In all the threads I've read it seems people are using all 4 ribs for the SR (well, 5 rib belt, the pulley has 4).