new mods with knock or no?

**gotboost3** · 11-23-2008

so by spring i will have a 3.4 pulley, intense PCM, TDC racing FWI, APP 104's, and 180 tstat will i have knock? ill have a scanner to see if i am getting knock...if i do get knock will a downpipe, tb shield and spacer eliminate it? also when i get my pcm tuned how many degrees of timing should i have them add? they say up to 3 with 93 octane.....but they offer one and two also? whats a good choice im not so sure how timing/knock coincide but just some real tech info would be nice soo lemme know what you guys think alright...

**SyntheticShield** · 11-23-2008

Ahh, there ya go. Sorry, wasnt trying to be difficult, just trying to get the posts where they need to be so that everyone gets the help they need.

**gotboost3** · 11-23-2008

its cool my mistake bro

**Sabrewings** · 11-23-2008

It's nearly impossible to tell you if you'll have knock or not. Though, to drop a pulley, I'd say a DP is a requirement.

**Smokin2000gtp** · 11-23-2008

Originally Posted by iamwhutiam003

so by spring i will have a 3.4 pulley, intense PCM, TDC racing FWI, APP 104's, and 180 tstat will i have knock? ill have a scanner to see if i am getting knock...if i do get knock will a downpipe, tb shield and spacer eliminate it? also when i get my pcm tuned how many degrees of timing should i have them add? they say up to 3 with 93 octane.....but they offer one and two also? whats a good choice im not so sure how timing/knock coincide but just some real tech info would be nice soo lemme know what you guys think alright...

You'll more than likely knock quite a bit with that setup, even with the addition of the downpipe I'll bet you'll still see a good deal of KR (don't bother with the TB shield and spacer, your money is better spent elsewhere). Some people have gotten away with just a plog/downpipe with the 3.4" pulley and seen little to no knock but nowadays that's pretty uncommon. Headers would be the best way to go IMO.

**gotboost3** · 11-24-2008

will having the amount of knock i'll see from this setup mess my engine up real bad?

**Iron Indian** · 11-24-2008

It could lead to engine damage, chipped pistons and such. Besides running a pulley will most likely make your car slower because the KR you will get will take away your timing.

Theres nothing wrong with the stock pulley in your case...

**Bogers99GTP** · 11-24-2008

Originally Posted by Sabrewings

It's nearly impossible to tell you if you'll have knock or not. Though, to drop a pulley, I'd say a DP is a requirement.

To be on the safe side, it wouldn't hurt to look into a 3.5 instead of a 3.4. Like Sabrewings said, Def. get a dp either the 2.5 or a 3in. A plog would help in fighting KR but headers would be the best. A plog might be a better option if money is tight and cant afford headers. Just scan scan scan!

**gotboost3** · 11-24-2008

scanned with the aeroforce and i have 2.6 knock bone stock....is it false??

TDCRacing · 11-24-2008

Theres no way to tell if it's false without a tuner. But that is a pretty good number for being stock. I have seen worse. With a tuner, A MAF tune and a few other minute things should take care of that KR no problem.