pulley recommendation

**kylecamarors38** · 01-08-2014

hey guys. i have question about the smallest pulley size i can run safely on my build. anyways the motor is going to be a rebuilt l26 bottom end (9.4 comp. ratio) powdered metal rods. car will have 105 springs, double roller chain, ls7 lifters, zzp xp cam, stage 1 methanol injection, and ported blower-intake-heads. I'm trying to shoot for 350-400 hp. I'm going with the stock style graphite head gaskets. I'm wanting to go as small of a pulley size as I can without worrying about blowing a gasket. i was thinking 3.0 but i need some better advice before pulling the trigger on buying the pulley.

**Bio248** · 01-08-2014

start with a 3.4, but have a 3.2 and 3.0 on hand, maybe even a 2.8 if you don't want to run more timing than stock.

head studs are going to be important in this setup.

**blueguy** · 01-08-2014

I would have gone with a different cam on a high comp. motor with ported heads, would have netted you better gains.

Besides that, I'd say like that^. Start with a 3.4", go from there. I'd rather keep it around the 3.2"~ area and crank the timing and lean it out more, especially with the meth inj. What nozzle are you running?

**kylecamarors38** · 01-08-2014

As far as the tuning goes I have no clue how to use hp tuners. I'll be taking it to a tuner for that. And this is going in a 3.8 camaro so the stock tune will be that of a n/a 3800 until it is tuned. (Btw I'm using 42 lb injectors) and I'm not sure of the nozzle size off hand. I just know it supports up to 500 hp at the crank from the description. Its a kit from cooling mist with electrically controlled solenoid and I think 200 psi pump? So I'm guessing arp head stud will be a nessessity with this build as opposed to stock head studs.

**blueguy** · 01-08-2014

The car won't even run if it's on an N/A PCM, and if it does...it'll run like crap.

Tow it where ever.

**kylecamarors38** · 01-08-2014

Planning on it lol. I figure the na tune could cause an issue even if run for a little bit due to the timing being higher.

**Bio248** · 01-08-2014

get head studs. the stock head bolts blow compared to head studs.

**kylecamarors38** · 01-08-2014

Noted. I had considered them. Just wasnt sure if they were needed if stock head bolts were torqued properly. But I will add them to the list.

**blueguy** · 01-09-2014

There is a tedious torque pattern that takes about 3-4 trips around to secure them the right way. So make sure you follow the steps if you do the studs.