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2008 Dinan Stroker M5 versus 2009 Cadillac CTS-V

17K views 100 replies 46 participants last post by  RaceMX-M3 
#1 ·


Both cars dyno'd 456rwhp on Classic BMW's dynodynamics this Saturday. The CTS-V showed 450+ rwtq though and my stroker only posted 330+ rwtq.

Watch the video and we can discuss afterwards...
 
#38 ·
It's always been well known that you can mod most of the american cars much more economically than the european cars.

My friend in the CTS-V will no doubt slap on a pulley and an ecu tune and come back with a vengence and stand a good chance of beating me next time.
 
#41 · (Edited)
It might put down more power than the stroker but as is, I see the stroker at least trapping 125+ in the quarter, which is a strong trap....The cady with a pulley and and tune and other bolts might not trap as high...only leading to a result of lower trap vs the stroker. So end result may be the stroker walking it after the 1/4 mile and maybe before...just my .02
 
#45 ·
I have been very impressed with Darren's car since it was sorted out. But since I own both the CTS-V and M5 (albeit only with AA software as a mod) I have to say that a run from 40mph is not the CTS-V's strong suit--just as with the E55's. I find the power of the V from a dig to be quite impressive. From 70mph and up, I think my M5 will pull on it. I also just find the M5 to be more rewarding to drive on all fronts. But as pointed out earlier, for $61K (negotiated price) out the door with all options but the recaro's, the CTS-V is hard to beat--and about the price of the Stroker mod alone.

That being said, it is still awe-inspiring to watch Darren's car in action!Congratulations!!:applause:
 
#50 ·
Just for point of clarification...I'm not running around racing stock cars and claiming superiority. Rather, it was to make a point about dyno numbers and dynonameters and how they are misleading.

So for everyone posting about a $100k car with $40k+ in mods beating a $70k stock CTS-V...relax. It was done with a purpose and we already knew the outcome. The focus was on dyno numbers, not the cars themselves.
 
#51 ·
Just for point of clarification...I'm not running around racing stock cars and claiming superiority. Rather, it was to make a point about dyno numbers and dynonameters and how they are misleading.

So for everyone posting about a $100k car with $40k+ in mods beating a $70k stock CTS-V...relax. It was done with a purpose and we already knew the outcome. The focus was on dyno numbers, not the cars themselves.
Yeah, I don't think anyone would think you're just giving beatdowns to stock cars. That'd be just silly.

Do you happen to have the dyno numbers from stock or near stock M5/M6 on that dyno? That would give a more clear comparison, IMHO. Comparing two cars with different weights, different gearing, different drivetrain types, different drag, and different frontal areas gives simply too many variables to make any dyno comparison all that illuminating, don't you think?
 
#55 · (Edited)
NO NO NO, LMAO !!!! OMG, I cannot believe how fast that happen! OUCH. With that kind of kill, I am off to watch a stock E60 vs the new CTS-V, Yeah, just like the shootout they just had in one of the magazines.

Thanks for the video, that was just stupid fast.

g
 
#57 ·
Gentlemen, I am the owner of the CTS-V in the aforementioned video. I should mention that the race laid out here was my first attempt at launching the V and it was pathetic. I have never tried to race an automatic before and still have much to learn. If I had know Darren intended to post this video on the internet I would have requested a few practice runs to get a feel for it. However, Darren's car is undoubtedly faster... as it should be. And as Daren stated, the main reason we made the runs, revolve around Dyno airflow and the effect on NA cars v/s FI cars.

Please be gentle on my little Cadillac, she is new (only 1500 miles) and I am still learning. I suspect I lost a 20-30 feet waiting for the transmission to downshift after the 3rd honk. The $40k stroker package certainly out pulled my stock CTS even after we got rolling. I suspect he put another 30 feet on me as we traveled down that mexican highway.

I hope Darren will give me another shot in a week or so. I will be better prepared for the launch. Although I don't expect to win, I do hope to be a more formidable opponent.
 
#58 ·
Fubar, as I have posted about my CTS-V, it will take some time to learn how to launch it. Even at half-throttle off the line, I just light up the tires in smoke. I have the automatic also, since it is my daily driver. At least it will be fun to practice!!
 
#64 ·
Excellent win Darren. That Dinan V10 is really something.

I'll have to agree with the statement that dyno numbers do not represent the real world. This is especially true when only peak figures are generally discussed.

Overall power output across the usable RPM range (when drag racing - whatever the engine operates in most - probably 6000 to 8250 for our S85's), gearing, and airflow to the motor all play a huge part in the acceleration of a car.

I can say with confidence that our mighty V10's will lose significant power without air being actively flowed in. Even though the design of our air intakes are not true ram air, they must contribute somewhat to providing a decent amount of airflow to the engine once the car is moving.
 
#65 ·
Excellent win Darren. That Dinan V10 is really something.

I'll have to agree with the statement that dyno numbers do not represent the real world. This is especially true when only peak figures are generally discussed.

Overall power output across the usable RPM range (when drag racing - whatever the engine operates in most - probably 6000 to 8250 for our S85's), gearing, and airflow to the motor all play a huge part in the acceleration of a car.

I can say with confidence that our mighty V10's will lose significant power without air being actively flowed in. Even though the design of our air intakes are not true ram air, they must contribute somewhat to providing a decent amount of airflow to the engine once the car is moving.

It was said by BMW that the S85 V10 needs TWICE as much air then S62 V8 engine from the M5 E39 does, that´s a big difference!
 
#68 ·
Forget the Lambo LP560, run a C6 Z06. The vette would be easier to find. This would be NA vs. NA motors. Maybe a ZR1 to up the ante and run a FI motor.

Ranger
 
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#72 ·
First, your car is sweet....(and Darren's!)

It is difficult to compare NA vs. forced induction motors, as Ranger points out.

The new Ms will likely be forced induction in which case, tuning will be available..... I don't look forward to the loss of throttle response but I may be persuaded to look the :cheers:eek:ther way with a 100-150hp $2000 software tune.
 
#71 ·
How did I miss this thread? Nice run Darren - looks like your beast is pulling nice and strong... you gotta be a proud parent.... :M5rev:

So now I am even more ticked that my beast malfunctioned in the big "D".. :pedro:

Anyway.. the dyno subject.. Both cars are naturally aspirating engines.. How can we discount one of the cars dynos, but not the other? hmmm Just a question....

I know there was a vette video in here (nice run btw :thumbsup:), but I think we are all still trying to see a Z06 run just for comparison to see what lengths you have on each other.. It's a good baseline for the NOS system, and for the ASR consumer - it would give them all a great determination as to how the outcome would turn out. I know exactly how my car reacted / beat the Z06, and could give a completely fair and honest opinion on how I think the outcome would be.. Unless anyone's willing to trailer their car anywhere? Anyone... Anyone... Bueller... Bueller.. you there? :hihi:

I know when my car is ready I'll be game to go pretty much (within reason) anywhere to have a little fun, and of course have a mighty toast when the deed is done.. :cheers::hihi:
 
#74 ·
Anyway.. the dyno subject.. Both cars are naturally aspirating engines.. How can we discount one of the cars dynos, but not the other? hmmm Just a question....
If you're referring to Darren's car and the CTS-V, the Caddy is a supercharged car, not NA.
 
#80 ·
I'd like to see a comparison of darrens car on a dyno with and without fans specifically feeding the air intakes (outer inlets on the front bumper). I think that alone will show how airflow makes a difference.

Also, I will trust Dinan to come out with a reasonably priced tune or the new M if it is indeed forced induction. They only charge between 1.5 and 2.5k for the 335i yet it's about the same for tunes on the other newer cars. I don't see a tune costing more than it costs for the S85.
 
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#81 ·
Fubar,
Read your post in #58, history has shown thatn SC cars get faster over time and work through the break in period. I would love to see this again when the car is broken in, and a launch in the right gear. ; )
Maybe Darren shouldn't pick on the newest gazelle! LOL
g
 
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