Thread: pulley drop question

idk how much influence cams have (one of the more experienced guys will) but i'd guess 3.5 with a tune

i would buy a 3.4, 3.2, and 3.0 pullies. with a cam and headers you should be able to start off with the 3.4 and get it dialed in without knocking. you might be able to run the 3.2, but the 3.0 might need a little more work (intercooler). having a 3.3 or 3.1 would be useless as the differences wouldnt be that much, but you can try those out too if youve got money laying around. i always just had 3.4, 3.2, and 3.0 pullies.

wow typo... i meant 3.4. took me a while to realize that

It all depends on the tune but you could probably do a 3.4" right now. I would get some larger injectors before you drop down to a 3.2" pulley and that all depends on the tune also, once you scan you will know whats needed. I've tuned a cammed regal before that was non i/c with a 3.4" pulley on the genV, it ran a 12.8 in the 1/4 mile on that size of pulley and stock timing tables. I figured when we first started we should have been able to drop down to a 3.2" pulley and add 2-4* of timing but we ran into fueling problems, so you have to realize that not all cars are going to have the same results. Best way to find out whats safe is to scan and tune.

a cammed, headered, genV setup is no basic 3.4 setup. i bet he was running a lot of timing too.

Turbo Iowa man said it was on the stock tables...unless I understood him wrong

he did say stock timing tables, bio its a little early to be drunk...

I just asked him again to make sure, it was done on 3.3" pulley, genV, s1x cam, pacesetters. It was kind of a ****ty track day too, the best we got with slicks was a 2.0 60 ft. He ran consistent 12.8 sec 1/4 mile with a 2.0 60ft on stock timing tables.

We had bumped up the timing a few days before after getting the fuel where we wanted it, but after we filled the car up again with gas, we went out and hit about 10 degrees of knock, I think it was bad gas. So after we shiit ourselves I dropped the timing back to stock and the next day was track day. I'm trying to get him to switch to E85 now, the car should be 11 second capable, especially after seeing what it did at the track.
http://s57.photobucket.com/albums/g2...t=Craig128.flv