60nomad

I do know how the heat can really effect any 'charged' car but one thing I have noticed is that the V's run consistent low 12's and high teen traps where the AMG's are all over the board, hence the heat soaking issues.

Cool vid Urb, that thing rips! As soon as I can get someone to drive my car as well and get video, I will post it as well.

urbamworm

I am sure a stock pulley car would be considerably different from mine that has a decent sized crank pulley (9.1) and small blower pulley (2.5), so that is definitely creating some heat.

Hotsoss

I love all this Caddy talk on the Benz forum! We should have a special section called AMG competitors lol

60nomad

All in fun!

I might just keep the benz...I really love that thang!

berti_00

Your still gonna love the benz more... stop denying it lol :P

60nomad

No no...I agree with ya, it's like 51% 49%...you just have to figure out which one is 51%!

C3Duece

not only that the lysholm aka whipple is a real twin screw whereas the eaton is just positive displacement.

Hotsoss

Very true no doubt. I love the Mercedes big block torque punch in the back at even part throttle. Now with that being said, E55k makes more boost stock, but the CTS-V is able to make more power with a comparatively smaller blower and less boost (8.9) because of it's greater displacement and better flowing heads. Also, this eaton has a superior inter cooling set up compared to the older Lysholm setup. As a result it suffers less from heat soak. Also, the little 1.9 on the V can easily make over 600rwhp with the only mods being added boost through upper and lower pullies, cold air induction, injectors/heat exchanger (safety and reliability), and a course a good tune. The large majority (NOT ALL) of pullied V8 Kompressors won't go anywhere near 600rwhp with all the mods dome under the sun. Heck even the great SLR engine would only make about 575rwhp. Also, don't forget these engines can easily have their blower easily swapped out for the larger ZR1 2.3 blower with limited fabrications and money relatively speaking compared to the SLR.

urbamworm

Guys have got 40whp from porting the V blower also, 30whp minimum and up to 50 has been seen on a heavy port (taking over 5lbs of aluminum out of blower). $1400 for a ported throttle body, intake snout and blower and you have an easy 40whp increase but more along the lines of 50+ with that combo since with only a blower port they see 40+ and only an intake snout port they have seen 10-15whp. Then the pulley changes are the easy stuff for more big increases. And a supercharger pulley will run you $140 shipped.

Tremek

Don't think this is true:
http://www.eaton.com/Eaton/ProductsS...ers/PCT_223743

I have found other commentary saying the TVS system is a hybrid between a Roots blower and the intermeshed twin screw systems.

sloanbj

Seats are critical! Just swap out those horrible Recaros for something comfortable and you should be fine.

Hotsoss

I agree 100%. The big differences between these cars are their light to moderate throttle response is stock guise. The CTS-V can feel a little lazy at part throttle application giving the impression that the car is not as powerful as it actually until you stab the throttle. The V8 Kompressor motor feel like a monster at any throttle application mostly due to the fact that this motor makes a ton a torque down low in N/A guise (see 2002 E55) and the off/on clutch feeling of the supercharger clutch engaging.

From my understanding (Remember I'm still stock) the V like many other vehicles really wakes up when the car ecu and tcu is tuned. Even more so if the throttle body is ported or swapped out for a larger ported LS7.

SterlingE55

He's got a good point. You can always put the recaros back in to sell or race the car.

urbamworm

This is the dyno from mine both in its current state and before the cam and bigger crank pulley (only smaller supercharger pulley at the time instead of both). The higher run with the additional mods was done in colder weather also (mid 50s).




The mods and cost at the lower power level and track results are below, the higher number is everything the same below but adding a 9.1 lower pulley, ported throttle body, bigger heat exchanger, 850cc injectors and a mid sized duration and lift cam.

•563 RWHP, 566 RWTQ (Dynojet SAE, 93 Octane)
•New Era CAI (brake duct removed)
•Stainless Works Headers (2" Primary)
•Stainless Works X-Pipe (No Cats, 3")
•2.5" Upper Pulley
•100mm Idler
•Solid Isolator
•160 T-Stat
•Siemen's 60# Injectors
•Tune by RPM Motorsports: Garner, NC
•11.52 @ 124.1 MPH in the 1/4 on street tires, weather was cold with -1200 DA
•$2,944

viren.89

I have an inquiry, why is the price this low ?

You guys say that there aren't many who buy the V so I'd assume it has the same demand as our E55 and even then the price is low and ours isn't ?

Is it same quality ? Same output ?

Seriously even a used S/C pulley is around 300 plus shipped on this forum I think

urbamworm

Well, you have the the ZL1 Camaro also that can use some of the same parts, but these are also not cars out there everywhere so still fairly low numbers with both the ZL1 Camaro and CTS-V together.

I guess it would be similar to the E55 and then you have the SL55 and CLS55 that also use the same parts.

I think it is just the American market isn't a ripoff like the German market is for the most part.

$1200 long tube headers for the CTS-V instead of $2500 for the E55, etc.

While there has been great improvement on some parts prices and tuning costs for the E55/CLS/SL etc, some stuff still needs improvement.

DVC

This is one of the better threads going :-)

Congrats David! That graph looks awesome. Did I read that right, the cam and larger CP got you to 664/669? Do you know at what PSI that was?

Hotsoss

"I think it is just the American market isn't a ripoff like the German market is for the most part."

Exactly! It isn't the CTS-V parts are inferior in anyway, it's just that you pay a premium for anything German period.

urbamworm

The cam, crank pulley and stock ported throttle body were the actual difference. There was a bigger heat exchanger added as well but that isn't exactly a power adder and then larger injectors too since it had 630cc injectors and then went up to 850cc Injector Dynamics. Then of course the weather difference which was a good bit different.

The boost with the 2.5 upper and 9.1 lower pulley setup is currently 14.5psi and the tune is setup at 18 degrees of timing with 11.5 a/f ratio.

99lightning

i know alot of gm's have lazy timing down low and lots of torque mgmt, thats prob why they feel lousy down low.

60nomad

I'm getting used to them! I don't drive too far ever anyway and the feel of the car is awesome and the seats really give you a more track feel too. I would never change them. Light mods are going on this week I think. The car really runs nicely. Hopefully I can run the two cars against each other tomorrow...we'll see how the weather is and how busy I am.

Hotsoss

60nomad: How close is Long Island to Westfield, NJ? I'm up this way just about every weekend from Philly and would like to check out your V.

Thericker

With fairly light to medium mods the CTS-V is as fast as the Heavily modded E55k, this example doesn't have extremely great Negative DA or even list Long Tube headers etc..
2009 CTS-V sedanPalm Beach*International*RacewayWednesday, December 28, 2011 (DA ~ -300)

ModsTrack Sweeper cam AirRaid CAI Stainless Works cat-back exhaust Heat Exchanger 9.55" lower pulley/ 2.85" upper pulley18" MT Drag RadialsTuned by DiabloSport

60nomad

64 miles and come out whenever you want. I will send you a PM with my number...call me anytime.

urbamworm

This is my ride.