• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

What do i need to do to stop knocking?

R

Redbirds2230

New member
Lot of people told me to drop my pulley size to a 3.6", but what do I need to do to keep my 3.4" and stop KR. Ya its cold where Im from and I just got the new pulley, msd wires, and tune installed yesterday. Took it for a spin and all it does is flutter at 10psi from 50mph and up. I want it to stop not too smart with cars so thats why im asking. and no i havent scanned for KR but it never did anything of this before yesterday lol
 


Go back up to the 3.6 for now. Upgrade to 104 plugs or similar and get a tuner or have a custom tune done, then try the 3.4 again.
 
Ok, well, it looks like you have everything you need as far as supporting mods, so all I can think of is that your tune isn't right for your car.
 
thats what i thought when i told the guy i have a 3.4" he told me u should only run a 3.5" at the lowest or just a 3.6" and told me to buy some dp which i didnt think i needed cuz of my headers. So idk if he got it in his head that I wasnt putting the 3.4" on or not so you think its the tune?
 


You don't need a DP with headers, already has it. Go back up to a 3.6" before you do damage. Go ahead and get a tuner to dial it in.
 
You have to remember that the 05 supercharger is a more efficient blower than the earlier years so according to zzp a VS cam, or SS intercooler is also required with a 3.4" pulley.

I have a 3.5" pulley in a 98 gtp with a cold air intake and stock exhaust. I have headers, just need to mod them some before installing. I got the hp pro tuner software, started with a cross between 98 and 04 timing tables (should have just started with 04 timing table) and daily drove it for a few weeks, adjusting the timing daily to reduce knock to 0
 
3.4" is cam and intercooler territory like started already.

Your car with a 3.6" would probably beat your car with a 3.4" if its knocking...just sayin'...
 
People tend to want to get away with the smallest pulley they can. A better alternative is to make the most you can of the largest suitable pulley. Recognize that driving the blower faster than stock takes it further from peak efficiency.
 
So i should just go with a 3,6" cuz it is my daily driver and I don't wana do any damage to it. Cuz intercooler and cam is way more than what I wanted to do to it, but now that I have mps the pulley change should buch easier right?
 


mechguy said:
People tend to want to get away with the smallest pulley they can. A better alternative is to make the most you can of the largest suitable pulley. Recognize that driving the blower faster than stock takes it further from peak efficiency.
Click to expand...

boring.

i agree with this statement, but ill always be a fan of boost over timing. i just like how the car drives. it's all personal preference.
 
You must log in or register to reply here.
Back
Top