3.0 to 2.9

[sundevil07]

do I need a pulley puller to switch my 4 bolt 3.0 pulley to a 2.9 4 bolt? How hard is it to switch out the pulley?

[Jn2]

no you are only removing the pulley from the hub, not the hub from the pulley, since u stated u have a 3" i am assuming you have a stgII 3.065" pulley with blue bolts, you remove those bolts, pop the out, line up the new one, and bolt it on...put your belt back on, and thats all there is to it....trust me i know, i just did this no more than 30 mins ago, swapped from a 3.00" pulley to a 2.8"

[sundevil07]

thanks man that's what I was hoping to hear! I actually have a 2.99 (76 mm) pulley on there now so I just want to swap it out for the 2.9. Did you retune for the 2.8? I know I won't need to tune for the 2.9 being stage 2 but I'm just lookin for a little more torque

[Jn2]

yeah i need a retune bci also went from 42lb injectors to 60's along with the pulley swap, but you shouldnt need a retune on the stgII tune

[sundevil07]

very nice, I plan on doing 2.8 and 60s as well just saving for header/downpipe and the tune to go along with it

[Jn2]

i cant enjoy mine yet, still havent gotten a tune for it, car drives with the previous tune just cant get on it yet, hopefully ill have a tune tommorow

[sloancallaway]

Originally Posted by sundevil07 very nice, I plan on doing 2.8 and 60s as well just saving for header/downpipe and the tune to go along with it

are you running any cooling mods... might want to consider that aswell...

[sundevil07]

stu mod and dual pass endplate

[bryson87]

i belive at 2.9 on stage 2 tune your max on inj. dont hold me to that info though

[sloancallaway]

nope 2.9 should be fine on 42's but more then likely 2.8 will not work... I only know of one person that is running ok on 42s and a 2.8 on lcn but I would not recomend that to anyone