Thread: Will I get major knock?

If you're getting actual (not false) knock at this point, dropping to a smaller pulley would not only be dangerous for your engine, it could potentially slow you down from the lost timing with the increase in KR.

You could also try putting on your breathing mods first. Put those headers on (im not sure if you have anything else) but, the intake, 180* t-stat and get yourself a scan tool and scan with just breathing mods, see what kind of knock you have then throw on that pulley according to your scans. Just keep in mind you definitely will need to tune.

KR will cause you to slow down, it shouldn't cause it to break up. Sounds like you have other issues you need to track down first.

The Aeroforce should be able to scan it, I believe.

Stop right in your tracks. Why even continue modding and you cannot get a tune? A tune is THE MOST IMPORTANT MOD. You can buy all the best parts but your car will still run like balls if you cannot tune it. HA HA your piston is going to be IN YOUR BACK SEAT!!!!!

I keep forgetting you have an 07' . yes aeroforce does scan, i go out and scan every now and then with weather changes. You might have to tune yourself with hptuners or someone can dyno tune it. With cam a tune is a must have.

Originally Posted by 99prixgt

I keep forgetting you have an 07' . yes aeroforce does scan, i go out and scan every now and then with weather changes. You might have to tune yourself with hptuners or someone can dyno tune it. With cam a tune is a must have.

I didn't think HPTuners could tune anything newer than an 05 GP?

Originally Posted by Scimmia

I didn't think HPTuners could tune anything newer than an 05 GP?

sh** your right. Damn the 07's Looks like dyno tuning is your only option

You could also look at finding a 2005 pcm to throw in your car so that it could be tuned.

Originally Posted by Clar2478

You could also look at finding a 2005 pcm to throw in your car so that it could be tuned.

I was just thinking that too. If i remember correctly it will work but, your gas gauge reads backwards and im not sure if anything else funny happens. Don't quote me on that though, it was a while ago when i was reading some info.

LOL, that could be funny. Have a buddy in the car, gauge's on "E" but you refuse to stop for gas...

if you have a cam you should easily be able to drop to a 3.4 without knocking. i never saw one blip of knock when i was cammed and untuned on a 3.4.

Originally Posted by 99prixgt

I was just thinking that too. If i remember correctly it will work but, your gas gauge reads backwards and im not sure if anything else funny happens. Don't quote me on that though, it was a while ago when i was reading some info.

The gas gauge not reading correctly is apparently a hit or miss kind of thing

why does everyone think you cant do this? with a cam youre going to be moving so much more air than before that a 3.4 should not knock unless your tune is crazy off and so long as youre not going to beat on it who cares?

im not saying slap it on and go run your car into the ground, but seriously people..a cam to run a 3.4? all you need is an intake, plugs, thermo, and a downpipe to run a 3.4 fairly safely. im not saying it wont knock, but it wont blow up. these cars really take a lot more than you all are letting on.

Originally Posted by Bio248

why does everyone think you cant do this? with a cam youre going to be moving so much more air than before that a 3.4 should not knock unless your tune is crazy off and so long as youre not going to beat on it who cares?

Because he was saying that he's getting knock now with the stock pulley. If that's true, it would be stupid to drop to a smaller pulley.

Now it sounds like he may not be getting knock, which changes the entire situation.

if youre running a cam and knocking with a stock pulley then there is something awfully wrong.

Originally Posted by Bio248

why does everyone think you cant do this? with a cam youre going to be moving so much more air than before that a 3.4 should not knock unless your tune is crazy off and so long as youre not going to beat on it who cares?

im not saying slap it on and go run your car into the ground, but seriously people..a cam to run a 3.4? all you need is an intake, plugs, thermo, and a downpipe to run a 3.4 fairly safely. im not saying it wont knock, but it wont blow up. these cars really take a lot more than you all are letting on.

So question than im getting a VS installed as we speak what else would be necessary to drop the pulley cause this is something i have never heard about i mean besides a down pipe but with my set up and a downpipe and a ported manifold chances are i would be good with minimal to no knock?