Sadden

So now that im getting the G8 ive been rethinking the direction im going to take the GP.
My original plans involved the CT turbo kit and tep trans w 2.97 (those gears last longer according to dave at tep)
Now that the G8 is in the picture..... I dont think that the GP needs the hit in durability associated with all of that power.

So now the current plan is a Tep trans w/ 3.69's. Ported LS4 intake , 3in Exhaust , mild cam , torque converter to match , and maybe a 50pill. plus my listed mods , All tuned by lew.

What are your guys thoughts?

Dom87SS

iTrader: (3)

Unless you have a ported LS4 already just do a LS1 or LS6 swap

DavidGXP

iTrader: (14)

I agree with everything listed above, minus the ported ls4 intake.
3.69s rule btw!

WhiteGXP313

Why don't you just sell the prix and put that money into supercharging the g8

baltsk8er69

iTrader: (1)

Yeah I have to agree with whitegxp....if you have a g8 nodding the gxp could be setting you up for failure....I would intake exhaust and tune and leave it alone.

DavidGXP

iTrader: (14)

Its always good to have two cars

Sadden

Winter and a summer car. No way in hell i will ever drive the G8 through the winter. The only reason my mods list is so small atm is that i have not been able to afford the downtime , i drive the car everyday. The G8 will get supercharged for sure. I just cant leave the GP the way it is , it feels so halfassed atm. And besides which i despise the factory exhaust.

Why the hate for the ported ls4 intake?
It showed similiar gains to an ls1 swap and cost 1/4 as much?

fubar569

iTrader: (9)

I will know tomorrow night the differences in a FAST 90mm and the LS1 intake that everyone swaps to. if the dimensions are roughly close at about 3 critical areas (around the rear bulge) the only modifications required would be:

1. grind off and epoxy shut some of the vacuum nipples.
2. relocate PS reservoir
3. adapt LS4 TB to intake or wire up appropriate 90mm DBW TB

I will know more when i pick up this intake tomorrow. the best part is the price. it's under 300 bucks - so i stand to make money even if i don't use it. haha

Dom87SS

iTrader: (3)

because the more you mod the less efficient it becomes where as you can only go up from a LS1 or LS6 with porting. you are maxed out with a ported LS4.

Sadden

Dont really plan on outflowing it though , the final mod list on the car is listed above? I dont really see it needing one. Could i see gains with the ls6 and listed mods , maybe slight , but is it worth the excess 600$ , not for this car.

94ss06gxp

iTrader: (5)

honestly I would sell the grand prix if I were you. . .

DavidGXP

iTrader: (14)

Everyone keeps bailing out on the grand prix..
Losers!

Sadden

And then what would i drive in the winter.
I live in Alberta Canada

94ss06gxp

iTrader: (5)

WRX with a set of snow tires.

99slpws6

Couldn't of said it any better, awd in the snow is a blast.

BlackImpSS

iTrader: (1)

I understand keeping the car for the winter, but adding more hp to drive thru the snow doesn't make sense. And it still seems like it is going to be your DD and the G8 will be the vehicle you take out on nice days, so do you really want to lose reliability and risk taking the g8 out on days you normally wouldnt.

94ss06gxp

iTrader: (5)

He also said he's up in canada, I'd get a 4x4 diesel.

Sadden

Ewwwww you couldnt pay me to drive a stubbbbbbie. I raced my buddies sti , and besides being a total dog , they look and sound ugly.
Nope , my GP has never let me down in the winter. Starts up every day , even when its minus 50 , it doesnt get stuck , and its fwd. The gp is not going anywhere.

baltsk8er69

iTrader: (1)

I love my car,bit a dog an sti is not. My brother has an 07 with intake and turbo back exhaust and a Cobb handheld and ran 12.70 all day long. Along with a 5500 launch control the ***** nasty and there's nothing.internally done to it.

99slpws6

Screw that he should trade his gp in on a dog slead team