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Old 01-16-2013, 03:46 PM   #1
09G8GTPanther
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Default Need help and opinions, mods for 09 Pontiac G8 GT!!

Well id first off like to start the post with a little information as I am new to these boards. I currently own a stock 2009 Pontiac G8 GT Panther Black. I purchased this car back in 2011, right after a I graduated high school. I am currently 20 years old and have very little engine tech knowledge. After running through these forums looking for opinions on mods I am still stumped on which direction to go in and what all mods I should do. I will list the things I would like to do and hopefully somebody can give me an idea what to do that suits my wants.

Things I for surely want to do:
DOD Delete
Different Cam (open to all suggestions)
TVS 1900 or 2300 (very undecided between the two)

(Livernois seems to be leading the way for me as far as cam options and dod delete. I like the packages they offer)


Now my goal with this car is to get the most out of it I can as a DD. I am ok with sacrificing gas mileage as long as I don't drop below 17mpg. Realistically I would really like to hit the 500+ hp range but since I know so little I am unsure what the best route to take is for drivability, reliability, and of course POWER! This is a project I would like to do with my dad and brother, as they are both huge gear heads and have always wanted me to get into engines. They both know very little about modern engines though, this being the only downfall. Luckily there are a bunch of great members hear to help and give opinions. Im sorry if I didn't post enough info so if anything is unclear please ask and I will reply within a reasonable amount of time.
THANKS IN ADVANCE TO ALL OF YOU WHO ARE WILLING TO HELP!!!
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Old 01-16-2013, 04:14 PM   #2
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Start off with Headers and a Cold Air Intake (CAI)...and you'll need to get it dyno-tuned immediately afterwards or it will run like crap. This should get you to ~350 RWHP and cost around $2750k, not including installation. To get over 400, you'll need a performance cam with upgraded injectors, etc. To get over 500 RWHP...you'll need to get a Supercharger or a "very aggressive cam" package with a lot of extras included. Of course all of that power will greatly impact the handling characteristics...so you'll need to investigate a performance package for the suspension and brakes. All of this costs money....
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Old 01-16-2013, 04:20 PM   #3
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I had Rotofab intake and 1 7/8" kooks mid length headers, along with a Livernois "mail order" tune (not dyno, but based on them from the many G's they've tuned) and she made around 350 at the wheels. I'll have to look at the "before" on the dyno sheet when I get home.

You can get a mail order tune/CAI from them for 7 or 800, I forget what it is now, and the kooks might run you 8-850. Putting the headers on isn't that hard as they bolt right up to the existing exhaust. Many people here have done it themselves

DOD would run 15-1700sh depending on where you go I think, installed can run double that. Not to hard to do that yourself either, assuming you have a mechanic friend.
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Stop: CTS-V 4 piston, Camaro rotors, Hawks HPS Pads

Show: GXP diffuser, Breyton GTF2 wheels

483.8 - RWHP
465.5 - RWTQ
11.85sec/116.68mph
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Old 01-16-2013, 04:44 PM   #4
09G8GTPanther
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Thanks for the replies so far guys....Looking at your mods "Bob the Noob" you seem to have almost the exact set up I am shooting for. My main thing is deciding which cam to go with and between the TVS 1900 and 2300....Also to BMWHunter, thankfully for me money is not going to be an issue and I already have 10k saved and ready to be spent on this car =)
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Old 01-16-2013, 04:54 PM   #5
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If you want 500hp, save up until you can get the TVS kit and just go all at once, that way you won't need to worry about retuning or getting an intake now then needing a different one.
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Old 01-16-2013, 04:58 PM   #6
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Whatever I end up doing to this car will be a project with no hurry. My intentions from the beginning are to have all the parts before one bolt comes off the car. Comopaint you recommend saving up for the TVS kit. Which kit are you talking about?
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Old 01-16-2013, 05:00 PM   #7
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Idk which kit they make or whatever. I'm not looking to get a TVS but who ever sells them or whatever, I assume they are a few grand.
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Old 01-16-2013, 05:05 PM   #8
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Ya they are rather expensive 6-8k. My question was more along the lines of which kit, the 1900 or the 2300 but since you do not own one or have no intentions too I don't expect you to answer that question.
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Old 01-16-2013, 05:12 PM   #9
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Well you want 500+hp, I say go big or go home lol. Might as well get the 2300 model along with your DOD delete kit.
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Old 01-16-2013, 05:36 PM   #10
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1900 will easily get you above 500whp. I know guys getting closer to 600whp with a good cam and supporting mods on a 1900
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Old 01-16-2013, 10:12 PM   #11
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see I was leaning towards the 1900 off personal opinion after a couple hours of reading. That said I know very LITTLE about these types of things. Ive read a lot therefore I may "think" I know but Im on here to learn not teach haha! So can you explain the benefits of choosing the 1900 over the 2300? If any?

Say I take the 1900 route, any recommendations for a good cam?
What else is recommended with this set up?
(Rockers, lifters, internal pieces,ported throttle body,etc)
Should I change the stall?
Roto fab, Vararam, VCM?

Sorry for all the questions but I appreciate anyone willing to help, Im all ears to learn.
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Old 01-17-2013, 07:23 AM   #12
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The 1900 vs 2300 kit is a long running debate, but from what I've found:

1) The 2300 is a little longer, which means removing the hood liner or cutting a chunk out of it
2) The 2300 will come into boost a little bit later, so if you want "right off the line" power, the 1900 is a better choice
3) 1900 is rated up to 750HP and the 2300 up to 900 or so (someone confirm I'm remembering this right?)

A 1900 is plenty for most people. The only reason I went with the 2300 is because I got a better deal on it as it was a "factory blemish" unit vs what I would have paid for a black finish 1900. Bigger, chrome and cheaper? of course I'll take it! The only blemish I've found so far is what looks like a pin hole in a spot of the plating. As far as I know there aren't anymore available though.

Jess (WickedMom) would be the go-to person for pricing. Also, let us know where you are so we can recommend (or tell you to stay away from) shops near you for working on your baby.
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Go: Roto Fab CAI, Livernois Tune, Kook's Mid Length 1 7/8", Corsa Mid-section, Solo Axle Backs, Chrome TVS2300, 8PSI Pulley, 60# injectors, Kenne Bell Boost-a-Pump, and other related goodies, BMR Front & Rear Sway Bars, BMR Drive Shaft Loop, Vredestein Ultrac Vorti tires

Stop: CTS-V 4 piston, Camaro rotors, Hawks HPS Pads

Show: GXP diffuser, Breyton GTF2 wheels

483.8 - RWHP
465.5 - RWTQ
11.85sec/116.68mph
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Old 01-17-2013, 07:26 AM   #13
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rotofab, 1-7/8" Stainless longtubes, TVS1900, tune, done. You don't need to change the DOD hardware or cam (people are running SC on stock internals) but you can. Add that into the mix and you're talking probably $10,000-$12,000 w/ the labor. That's without factoring in suspension mods and brake overhaul but I assume that will eventually need to be done anyhow as part of maintenance.

Are you a rich 20 year old?
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Old 01-17-2013, 07:47 AM   #14
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Quote:
Originally Posted by BMWHunter View Post
Start off with Headers and a Cold Air Intake (CAI)...and you'll need to get it dyno-tuned immediately afterwards or it will run like crap. This should get you to ~350 RWHP and cost around $2750k, not including installation. To get over 400, you'll need a performance cam with upgraded injectors, etc. To get over 500 RWHP...you'll need to get a Supercharger or a "very aggressive cam" package with a lot of extras included. Of course all of that power will greatly impact the handling characteristics...so you'll need to investigate a performance package for the suspension and brakes. All of this costs money....
I agree with cold air intake and headers being some of the first mods he should look into but he should also know that you dont have to spend 2750 bucks to do it. The OBX kit is about 800 bucks and includes headers and all the mid piping with no cats. The Pacesetters are also catless but dont include mid piping and can be done for 500ish. As far as the intake goes he can spend 150-700 bucks depending on the route he wants to go. Email tune is 600ish.

Also OP there are more companies to consider when it comes to cams although livernois isn't a bad place to go with. Texas Speed usually has some decent prices. Vector motorsports had a holiday deal recently where you could get cam/DOD delete kit right at 1100 bucks I think.

There is endless info on all these subjects on this board. Search around and do ya some learnin'.
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Old 01-17-2013, 09:42 AM   #15
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If you have the money saved and ready to go (and nothing else better to spend it on ) then I would do it all at one time and get a package install deal... one tune, etc... you should be able to get a 1900 with cam/headers installed for about $10,000... also add in exhaust for another $1000 and be done... multiple trips and multiple tunes is a pain... if your going to do it anyway... do it all at once.
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Old 01-17-2013, 11:04 AM   #16
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Damn, i have long way to go , but couldn't you could switch to a 402CI engine and a cam for that much and have lot better engine reliability ?, i mean, the stock engine wasn't meant for FI, and most people are not happy with the factory Maggi power, and want more power,we all suffer from brain sickness, and we'll always want more..., the stock engine would only live so much with FI, let alone what some want to push through it, why not spend the money on something forged from the factory (forged engine from any vendor), and since some have lots of it, build an FI setup around it ?
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Old 01-17-2013, 11:39 AM   #17
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I'd say go with a headers, cai, and a catback. Then get a TVS 2300 and grab a smaller pulley also. You should be able to install everything yourself its all very easy to do. Get a custom dyno tune and you should be around 500+ whp. If you decide you want more power pick up a DOD delete kit from texas speed or someone and have Rick Crawford (G8-4-Speed) or Pat G spec you out a custom cam.
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Old 01-17-2013, 12:28 PM   #18
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I had my car for two weeks and decided it needed more power. Installed headers and was at the 350rw hp range. This was a good start and I decided for more. Next was TVS1900 which was now in the 475 range. Car now was beginning to be fun to drive. Next was LS9 cam, 2400 stall and trans build by Century Automotive. Now I love the power delivery and can still get around 24mpg on the highway, but city ranges from 8-14 due to heavy right foot.
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Old 01-17-2013, 01:20 PM   #19
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There are such a LARGE and VAST amount of opinion regarding this TVS 1900 and 2300 debate I could about puke haha.
CAI- Vararam, VCM, or Roto?


I had noticed someone asked where I was from. I am from the Northeast South Dakota area.
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Old 01-17-2013, 01:40 PM   #20
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Quote:
Originally Posted by 09G8GTPanther View Post
There are such a LARGE and VAST amount of opinion regarding this TVS 1900 and 2300 debate I could about puke haha.
CAI- Vararam, VCM, or Roto?


I had noticed someone asked where I was from. I am from the Northeast South Dakota area.
The basics of the CAI are like this. All out cheapest is the spectre for about 150 but if you want the more attractive version go with the Rotofab for a little over 300. If you wanna go with the ram air style the cheap option is the Vararam for a little over 300 but is lacking in the looks department imo(but so is the spectre). The VCM is my favorite intake by far. It is hands down the best looking intake for these cars and looks almost stock. With the covers and panels that go with it its over 700 bucks though. It also performs very well.
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In The Garage: Yank 2800 stall, Eibachs, SLP UDP
10.59 at 100.31 in the 1000.....8.33 at 88.13 in the 1/8....1.99 60 ft

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