ajrothm

Why do you suppose the G8s are only throwing out around 290rwhp on average? I mean I know its auto and I know it has a tiny cam but hell.....the auto LS1s were making 280rwhp back in 98' stock....you would think that 20 cubic inches, way better heads and intake would make more then 10-15rwhp more no?

Just curious, we just bought an 09 G8 a few nights ago and I was studying up on em.... Seems like they wake up with a CAI and tune but, I would have thought it would do more then that stock.

Opinions?

TheTugBoat

Its in the tune and the baby DOD cam. I saw my A/F dip into the 10s in the upper rpm's on the base dyno run. Pulled that up to about 12.5-.8...BOOM! ~330/350 whp/tq with tune only.

Blackbirdws6

iTrader: (7)

^^ agree with above but keep in mind that these cars are usually dyno'd in 4th gear which is not a perfect 1:1 ratio as would be a Fbod. The cam is def. small in these cars though.

With a couple mods, they are realllly waking up though. Check my sig.

Rich@pm-fl.com

iTrader: (1)

Yup, my a/f stock dropped down into the 10's as well. And like blackbird said, we do not have a true 1:1.

GeorgeInNePa

There is a huge amount of potential in these cars.

q8LSX

i've seen i G8 pull 311rwhp stock, after installing intake system and tunning it, it ran 356rwhp

Blackbirdws6

iTrader: (7)

^^ sure that didn't include a set of headers? That's way out there for a intake/tune only G8GT

TheTugBoat

looks like a high dyno to begin with. could be right, take 20 hp from the baseline and the after mod dyno. 335 is what most people are seeing after intake/tune i think.

adanieljohnson1

iTrader: (1)

I think its so crazy how the performance of our cars has increased so much within the last 5 to 10 years!!! 30 years from now ALL our cars will be colector items flying down the strip and putting HUGE smiles on our faces as we do it!! I have alot of faith in you'll G8's too! Thats some great increases on power

TheTugBoat

dan you forgot

























gto's are slow.

q8LSX

yah i am sure, he's a freind of mine and his g8 is somethin else, he is got the RUSSO intake system (australian), i'll see if i can get his dyno graph and post it up

Rich@pm-fl.com

iTrader: (1)

was that 311 and 356 SAE corrected?

Mike P.

Amen brotha'


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