Street Racing & Kill Stories - Magnuson 04 CTS-V vs Nitrous 09 G8 GT

My friend (punishmentcycle) just got his car back on the road after he ate a piston and had to rebuild the motor so we decided to line them up and see where the chips fell.

2004 CTS-V - M6, stock displacement 9.8:1 forged motor, LS9 cam, stock LS6 heads, 1.9 liter Magnuson blower, full exhaust

476 rwhp, 460 rwtq

2009 G8 GT - A6, bolt-ons, full exhaust, 150 shot, drag radials

486 rwhp, 561 rwtq

http://www.youtube.com/watch?v=ye-QeyK9Jlk

The damn G8 gets another one, lol.

Looking forward to seeing some runs with the new NANO setup.

Good dayum run!! Did you spray on that run?

Can't view videos at work :mad:

Good dayum run!! Did you spray on that run?

Hells yeah I did, lol. My car only makes 348 rwhp on motor, so it would have been a murder if I didn't.

I was very happy with the run because it shows that my G8 is faster than my Z28 was on motor.

You should run him again from a lower roll... See if you can handle all that torque...lol:chug:
If i didn't have a V and know the low end issues i would go from a dig... that V might surprise ya.
Good Kill tho Screamin!!


Hells yeah I did, lol. My car only makes 348 rwhp on motor, so it would have been a murder if I didn't.

I was very happy with the run because it shows that my G8 is faster than my Z28 was on motor.

My car doesn't spin ever from any mph, so a low roll or dig would be more than welcome :devil: The nitrous doesn't come on until 20 mph though, so some cars do get out on me off the line.

His V does have a beefed rear and axles, but he's on street tires so low rolls are out for now, but that could change at some point :)

The nitrous doesn't come on until 20 mph though, so some cars do get out on me off the line.


RPM window switch?

RPM window switch?

Yeah, it's set to come on at 3000 rpm, which is 20 mph in 1st gear with the crappy stock gearing. Some shorter drag radials and a 3.27 or 3.45 gear would probably help out quite a bit.

Any updates with your bro and his nitrous kit or is he still planning a swap?

G8 and V roll out!

Should have had your buddy with the 09 V come out and run the two V's.

He's been tinkering with it here and there between work. He plans on installing it for this year and then doing the swap in the fall or winter.

Kinda surprised hes only making 470rwhp with that set up. Its forged so why isnt he spinning the blower more?

I'm not sure how much more you can get out of those blowers. I know his previous setup suffered from bad belt slip a lot of the time, and the current one doesn't seem to.

I'm sure he'll chime in once he's done looking at boobies :nod:

Kinda surprised hes only making 470rwhp with that set up. Its forged so why isnt he spinning the blower more?

Small blower, that thing is about maxed out the way it sits. Might be able to sneak another 20-25rwhp out of it but its getting out of its efficiency at that point and just building more heat. I always HATED the maggies ont he first gen Vs for that reason. You cant make great power with them.

Nice kill

stay tuned for my runs with the V tomorrow night :)

Nice run. Good kill. +1 street credit added. (LOL That should be a function here on SRK)

Thanks guys!

stay tuned for my runs with the V tomorrow night :)

Can't wait to see the results! Hopefully the weather holds.

Nice run. Good kill. +1 street credit added. (LOL That should be a function here on SRK)

Lmao, we might have to do something like that on streetsofct.com!

It was a good run!! Im happy with the way my car is running. Can't wait to see how she does on the bottle. G8 deff hauls ass!

Have you done anything with the fuel system yet other than injectors?

It's still got the stock Maggie 42's

But no. Just the boost a pump.. I have a walbro 255 that has to go in before the nitrous

Small blower, that thing is about maxed out the way it sits. Might be able to sneak another 20-25rwhp out of it but its getting out of its efficiency at that point and just building more heat. I always HATED the maggies ont he first gen Vs for that reason. You cant make great power with them.

Isnt it a 1.9l tvs blower pretty similiar to the one that comes on the LSA?? Theyre getting 700+ rwhp out of a h/c ZL1 on race gas...

It's a 112 eaton blower

my Z28

Your what? :confused:



Poor neglected F-bomb. :(

Yeah, it's set to come on at 3000 rpm, which is 20 mph in 1st gear with the crappy stock gearing. Some shorter drag radials and a 3.27 or 3.45 gear would probably help out quite a bit.

You know what else would help you get that tank out of the hole? A converter. And yes, I am going to annoy you about until you do it. :lol:

Lol, the G8 is finally where I want it for now so I plan on turning my attention to the Z28. As far as a converter, we'll see where the modding winds blow once I start on this car again :nod:

It's a 112 eaton blower

Ohhh ok. Gotcha

Nice kill!!! I love your G8. Maggie sounded nice as well. Good vid as always.