Thread: Need Modding Help L67

I need a little advice and direction where to go from here. I have a stock GTP has aprox 84k on the clock. Currently running AL 606's with Belden wires. I have a lot of competition around here and I need to be able to crush these cumstangs and rice burners.
I am pretty certain on these mods in the very near future tell me what you think.

ZZP 3" CAT w/Cat

ZZP Cold air intake 4" cone

Overkill Can tune

MPS (unsure what size)

AL 105's

Right now im getting a peak of 5KR and im pushing about 7psi at about 4k RPM I want to be in the high 12's or low 13's in the quarter mile. I'm sure someone is going to tell me headers but I would like to save that for last after the above mods if I still have knock. My main question is will I still have KR? I plan on waiting to pulley swap till I am under 2kr.

What would you guys do?

Get rid of that mass amount of kr before you consider dropping pulleys

Skip the cat back, its pointless and a waste of money. Get a 3" dp and a front plog at the least if you don't want to run headers. Make your own intake its cheaper and just as effective. With the dp plog Al105s and a tune you should be able to run a 3.5 pulley pretty easy, you might be able to drop to a 3.4 but its hard to tell as every car is different.

Ive read that forum probably a dozen times, I can scan for KR like I said i have about 5kr WOT above 4k RPM.

Originally Posted by Matt Palm

Get rid of that mass amount of kr before you consider dropping pulleys

5* of KR on a stock car is average Palm.

Really? I guess im lucky with 0 kr lol

Yeah I've read of some people stock hitting 6*. Each engine is different, my Silver car before the engine took a dump saw 4* of KR.

Is this a 13 second setup? and the reason I felt I should go with the ZZP CIA was because of heat. Isnt it true Pulling cold air in + S/C = more boost? What is the first Mod I should do? I was thinking the CIA or Downpipe?

And for canned tunes 3800performance dhp tune is one of the best ive been told by many

And the cai does nothing for our cars since the blower on it is a super heater it all becomes the same temp no gain really

So as for removing my stock KR downpipe or CAI first?

Downpipe will do alot more than a cai. Zzp 3in dp

Originally Posted by 94GrandPrixSE

Is this a 13 second setup? and the reason I felt I should go with the ZZP CIA was because of heat. Isnt it true Pulling cold air in + S/C = more boost? What is the first Mod I should do? I was thinking the CIA or Downpipe?

You are not going to get into 13s with just a pulley and a cold air intake. Sure you could run a small pulley a custom tune and race gas like Twinv6, but thats not an everyday driver. A 13 second every day driver you would probably need a cam but I could be wrong.
No a cold air induction on these cars does absolutly dick. http://www.grandprixforums.net/dyno-...ake-33225.html Make your own just search homemade intake or diy intake.

all the intake does is allow you to hear the whine

Well I guess thats what I was looking for Slick, so Downpipe and PLOG it is. AL 105's sound good?

right now zzp is out of plogs. And for the dp since its a l67 you should get a 3 inch dp catted will be about 50 bucks more

Originally Posted by Matt Palm

all the intake does is allow you to hear the whine

Ill save myself $250 and DIY it

Ill get the DP first and what are the opinions on fender well intakes? same thing?

yeah pretty much same thing as a cai possibly a little better