What should my next mod be?

[Lsick7]

I need some help deciding my next mod. I should have close to $400 to blow in a few days or so, and it will definitely burn a hole in my pocket. Currently i have a 1998 GTP with 3.4 mps, dp, slp cat-back, tb spacer, JMB FWI, plugs, t-stat, and unfortunately a zzp pcm.

So, with that said, i have 3 options in mind....

1.) Green Bastard (Reptile) Supercharger/TB Port and Polish and GBP Tune
or
2.) SSAC Headers
or
3.) ZZP rockers and ls6 valve springs

I'm leanin toward 1 or 2, but i can't make up my mind!!!!

[DnaProdigy]

If you have any desire/time to learn how to tune, i would buy a tuner. A good tune can drop close to a second off of your 1\4 mile. If i remember correctly someone claimed to have run a 99 stock GTP in to the high 13's with a really good tune.

Your decision should be based on your mechanical expertise and goals.

If you have a good deal of knowledge/skills i would go for the headers. Not too hard to install but problems with sealing could call for substantial welding. (I'm not sure about the track record of SSAC headers). Breaking a bolt in your engine block = no bueno, would you know what to do? You allready have a dp which would become useless if you get headers (some types anyway).

Personally i would go with choice FOUR. You get the tuned PCM which you defiantly need (ZZP is garbage). You get the P&P, better S/C and TB efficiency, less KR and more whine! And you buy a Plog, the rear manifold isn't too restrictive however the front is, the plog will help allot. You don't need to lift your car to do this work and if you exchange your cores the price is amazing. All work is done on top and any problems you encounter would be easier to fix.

Choice four would run you ~ $540 and ~$440 after you return the blower and tb cores. If you get the plog used you can knock another $40 off of that price at least, bringing you down to $400. You can probably even get something for the front exhaust manifold if you decide to sell it.

[TheOtherNick]

Get headers. I have ss autochromes just have to buy some nice band clamps and tighten them up real good.

[Bio248]

none of those will give you a big kick in the pants. the ported blower/tb will be the most useless to you at this point in your modding. you will literally get like 5 hp from it at most. the headers will give you a little top end, but youre not to a point that you NEED headers yet. for rockers you need exhaust work for them to help out a bunch.

i suggest you just wait and save up for an intercooler setup OR a cam setup. either of those should run around $1000, but your car will be a whole new beast with either one.

[superv6]

really? bio you dont think that a really good tune over the zzp pcm would benefit him at all? thats my next move is to get a good tune on my car. it would be the cheapest and easiest way to gain hp i think

[blueguy]

That DHP in your car is the best PCM ever Don't bother messing with it until you get rockers/cam/IC. Damn near 13's with your mods in the midwest is quick.

I say number one...that's only because I know how much I loved mine

[superv6]

Really? Well I'm happy with it. Well crap I dunno what I'm gonna do next I guess. I was lookin pretty hard into a set of roller 1.85 rockers. Maybe yella terras. Can't go wrong with rockers right?

[Liquifire]

Really? Well I'm happy with it. Well crap I dunno what I'm gonna do next I guess. I was lookin pretty hard into a set of roller 1.85 rockers. Maybe yella terras. Can't go wrong with rockers right?

do you have any knock with this setup?

[superv6]

do you have any knock with this setup?

You know I've never scanned it,but like bluegtp said it must be runnin pretty good cuz I pulled off a 14.1 quarter mile time in 85* heat. If I do have kr it can't be much

[Bio248]

realisitically you cant expect any of those things to give you a big gain. im just being honest.

if i HAD to pick one of those things i would do headers and then call up brian for a tune. its really what would benefit you the most at this point.

[Liquifire]

realisitically you cant expect any of those things to give you a big gain. im just being honest.

if i HAD to pick one of those things i would do headers and then call up brian for a tune. its really what would benefit you the most at this point.

Sorry to be an idiot, but who is Brian?

[blueguy]

do you have any knock with this setup?

Rockers will create more knock with more air flow and no exhaust compinsation for them...BUT, since he has a 3" DP and PLOG...he should be fine.

Sorry to be an idiot, but who is Brian?

Reptile. The go to guy in the MO/KS area for tuning.

[Bio248]

usually untuned cars running a 3.4 pull anywhere from 2-8* of knock unless they are cammed or intercooled.

[superv6]

well there you go. like i said ive never scanned it so couldnt tell ya for sure. sounds about right from what ive seen on other peoples cars.

[blueguy]

Just put a gallon of race gas in it and you'll be good

[superv6]

lol. probably. i use 91 all the time right now. sometimes ill find a gas station that has 92 octane

[blueguy]

I mean at the track...just pump in like 5 bucks worth

[Swash]

It's like 103 or 105 around here - sure to kill a couple * of KR.

Spend some of the cash on a tune. Save for cam, Gen V, and one of those cool chrome valve cover breathers.

-Swash

[superv6]

yeah i know what u meant nick. i never intend on doin a cam, and the gen V would be kinda cool, and prob. pretty cheap, but i dunno. i mean really, whats the benefit at this point? i already have a stock blower with 3.4 pulley. the gen V's flow better and all, but would it really make any diff over my setup now? i guess if i planned on doin a cam, ic setup, meth inj and all that cool ****e then i could see using the gen V's better flow.

[2000GTP]

dont get SSAC headers. save up for some good ones, or get a plog, and some roller rockers.