Thread: MY 3.4" Pulley & Supporting Mods

First of all, let me apologize because I know this topic and information is spread all over the place. YES, I did search and read a lot but my issue is more that to get the information I want/need, I'd end up threadjacking and I don't want to do that. So please be patient with me because I'm just trying to be courteous to the other thread OP's.
I'd like my own thread because the questions and info are really going to have to be specific to my own car.

I have a 2000 GTP with 140K miles and she's still in pretty decent shape. Here are the mods so far:

2.5" SS Cat-back exhaust with resonator delete and high-flow mufflers
180* T-Stat
Autolite 605 plugs (1 range colder)
I had a CAI, but took it off because it was causing engine load probs and giving me TCC indecision issues.

I would like to drop to a 3.4" pulley, but I will never go below that. I'm planning on doing a U-bend delete before putting in the smaller pulley.

What supporting mods are absolutely necessary for dropping to a 3.4" pulley? Money is tight and I only have a little bit to play with so I don't want to go all out and go crazy or anything. I'm just shooting for the minimum necessary. I just want to know what mods will need to be done so that putting on a 3.4" pulley won't damage anything. I'm not looking to build a racer, but just something I can spank a ricer with when they get brave enough to try me.

Thanks for the help, all.

Plog or port the crap out of your stock mannis, al104, U bend delete and a tune for sure. Just my 2 cents.

I would get headers, and an intake.. then get your pcm tuned to address fuel issues.

Here's another question. Has anyone ever put in a 3.4" pulley and then had issues/problems (related to the pulley swap) afterward?

Yeah...if you don't have enough mods you'll chip pistons. How does buying a new engine sound to you?

Forealz

Originally Posted by bluegtp91

How does buying a new engine sound to you?

Great!!!.....


So far I've got (that I need to do):

A PCM tune
Intake
U-bend delete
Colder plugs (al104)?
Headers


Anything else?

Read my thread...it TELLS YOU EVERYTHING YOU NEED TO RUN A 3.4".

IF you don't have the mods or the money...don't do it...simple as that. You said your on a budget...if you put that 3.4" on it...and beat on it with no mods...you'll be broke as hell with no car.

Originally Posted by bluegtp91

Read my thread...it TELLS YOU EVERYTHING YOU NEED TO RUN A 3.4".

K, I'll check it out.

Originally Posted by Juanmiguel

I'm taking the budget path too. Started with the 180F tstat, got a Ubend deleted locally and built my own intake. I just received my 3" DP which I bought here in the forums used and cheap. I'll probably have my manifolds ported locally. this I think it's a good start and I'll hold the PCM and pulley until I can get a KR reading. It's been 6 months since I bought my GTP and I'm getting there.

Sweet. I'm curious to hear how it all goes. If you don't mind, what'd you pick up your DP for? I need to keep an eye on the for sale forum I suppose.

Good luck

Originally Posted by Juanmiguel

I'm taking the budget path too. Started with the 180F tstat, got a Ubend deleted locally and built my own intake. I just received my 3" DP which I bought here in the forums used and cheap. I'll probably have my manifolds ported locally. this I think it's a good start and I'll hold the PCM and pulley until I can get a KR reading. It's been 6 months since I bought my GTP and I'm getting there.

Just a FYI, a PCM won't do anything to HURT your KR levels...in fact it would probably help them lowering them a bit. Plus, since the 180* T-Stat you have in is pointless until you get a PCM tune...I'd say get the PCM. A tune makes a WORLD of difference.

I think my cat is bad too (P0420 code keeps tripping). I also have to worry about emissions because of Utah law so going catless isn't an option for me.

Do you all think that the stock transmissions can handle a 3.4" pulley drop okay? Does a PCM and tune help with any tranny issues that could otherwise surface?

My stock transmission took countless 1.8 60 foots and down to a 3.1".

A PCM tune cranks up the line pressure when WOT making it shift harder and a shift kit would make the tranny last LONGER IMO, due to the quicker shifting there is less stress on the clutches.

As for the Mexico guy...don't get a local to tune it...unless you've got someone that tunes 3800's...or they'll mess your sh1t up. Try to find someone selling a PCM on here...or if you know someone in Cali...have it shipped there from 3800 Performance. Or if someone on the boards would be nice enough to buy it for you if you paid them Do they not ship to Mexico?

I might be getting headers soon if that happens I'll sell you my DP cheap if you want it.

Originally Posted by Juanmiguel

They do ship to Mexico and my sister lives in Philadelphia too. I just didn't want to order one tune for my current set up and then another one for when I drop pulleys. The local tune would've been cheaper than ordering one I think.

Who is the local tuner though? Has he done 3800's before? What program does he use?

If your dropping to a 3.4" then you can run the PCM on a stock pulley and it'll be fine...they are programmed for a 3.4" setup though. If you don't plan on modding past that there is no point to skimp there...just get the mail order PCM.

Originally Posted by BwolfGT

I might be getting headers soon if that happens I'll sell you my DP cheap if you want it.

It says full exhaust in your sig...is that not headers?

Therefore...you liar...that isn't FULL EXHAUST