Engagment rpm

[simbatheking]

My engagment rpm is 3500 and Id like to raise it to 4200 or so. My wife's stocker with dj kit engages about 4krpm or so I think and I like the feel of that better and i think it'd make the bottom end feel snappier. What r guys currently running for prim springs? I've readin other posts from other yrs guys are using around 200-240 start rate. I'm thinking about trying a 230/320 but I dunno if that'll get me to 4200.

My setup currently
10psi
Unknown titanium primary spring
Stock pins half full
415 ramps ground down at bottom and top
Unknown sec spring
Shockwave turned in 3/4 turn
21/49

 

[Wheel House Motorsports]

200/320 should get you fairly close, every RPM over 3500 is gonna make it a LOT more fun to launch out of the hole. they are pretty misserably lazy engaging that low!