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dyno pulls don't mean jack though - if you want numbers ..hit the 1/4 mile.
a c63 that was just started up and put on the dyno while the engine is still <75C is going to put more power down then a c63 pushing 110C .."correction" or not ...computers can only account for so many variables in the real world
Oh, I've always let my car cool so I get the same conditions prior to a dyno pull. I like the quarter mile, but I always use trap speed for comparison, not ET because ET depends so much on the launch. And I SUCK at doing consistent launches, especially with my C63.
Somebody on here said that they would test the spacers. They would do dyno runs with their car as is, and then fit the spacers, and run again. He said that if he gained even half of what they claim he would happily pay for the spacers. If not, he would return them.
Now, if I was the manufacturer of these spacers, this would be an opportunity to prove that your product works.
I am in the camp that cannot see how a simple spacer can net those sort of gains.
That would be me. I have the shop and the equipment anytime I need. I would be more than happy to do it and if there was a gain, I would let people know about it. The thing is, no one from AMG racing uses such a thing to get more power from this 6.2 motor. In fact none of them are running such a device and there is nothing in the rule book to prohibit in S.C.C.A rulebook.
But to be fair, I would not have a problem doing this knowing full well it would never work.
someone needs to install a type of airbox that uses big velocity stacks like the sls AMG uses.renntech has a prototype but not sure if it ever went mainstream.
here is what the engineers went through on the sls to make more power.they made a totally different intake manifold and moved the throttle bodies out away from the intake manifold and ran tuned velocity stacks.
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Dude, that's been debated endlessly already. People already transplant the SLS intake manifold and it costs like $15k for probably 40hp. It's big in Germany and the ME.
Dude, that's been debated endlessly already. People already transplant the SLS intake manifold and it costs like $15k for probably 40hp. It's big in Germany and the ME.
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
Geez... am I ever glad that I spent the last two days at the track instead of arguing whether air particles know which way to turn and who works out where.
To the manufacturer of the product - I completely understand that you make mods and that having a dyno graph to show an improvement helps sell your product. In terms of actual performacne gains, well, I'd say that the spacers are about as good as the Shakti Stones. Here is a link to the dyno data - and dynos don't lie.
To the original dyno owner / operator - all I will say is that if you've done lots of tuning and dyno runs and you then see something that by your own admission makes little sense as even you find it surprising, the logical thing to do is not present it as fact but rather look for what may have caused the anomaly... and then repeat the experiment and see if you again get the same result. Once when I was young and happened to be at some party, I was sitting on the back porch puttign on my Pink Floyd t-shirt and all of a sudden the flying pink armadillo looked at me and smiled! Now - if I were to use your approach to logic and facts, it would be an undeniable fact that putting on a Pink Floyd shirt makes a flying pink armadillo appear and smile at you. To a medical professional or even a sober, thinking layperson, the data would seem to indicate that I had probably somehow consumed some illicit substance if I was seeing flying pink armadillos. To me, it is a fact that at that moment I saw a flying pink armadillo, but to everyone else, that's just data which I interpreted one way while those that had not been robbed of their powers of logic and deductive reasoning interpreted as an anomaly specific to the circumstances and my condition at the time. I'll leave it up to you to decide which scenario is more probable. So far you have been heavily preaching at the altar of the flying pink armadillo, which IMHO is rather unfortunate as it gives your shop no credibility in the eyes of real car performance entusiats (not modders - there is a big difference between the two).
Like Mazspeed, I have been around race cars for a while and have access to a full race car shop, with another indie shop next door that we use for dyno testing. The shop doesn't sell or do any "eye candy" mods - they build cars to make them perform better and/or last longer - and to answer one of gaspam's earlier assertions, I do know a fair bit about physics and fluid dynamics and I also know how correction factors work. What I also know is that I've seen several runs in quick succession on a Dynojet where ABSOLUTELY NOTHING was changed and the results were off by as much as 8% (some ~40 whp on a ~500 whp Corvette) between them, and I also know that the shop next door that originally had a Dynojet changed it to a Dynapack a couple of years after installing it. Again, draw your own conclusions. Tire slippage alone can amount to the 30 wtq / 20 whp difference, not to mantion operator error - it doesn't even have to be the clean air filter. Getting a car on the Dynapack is not exactly trivial as you need to remove the wheels, but (a) it is not an inertia-based dyno, and (b) it completely removes a number of variables and potential sources of error from the equation, producing much more consistent results each and every time.
I can't see the spacers hurting anything, so I'll volunteer my own car and I'll pick up the costs associated with mouting it on the Dynapack if someone wants to send me their spacers and do several before and after pulls on the Dynapack. Will gladly record the whole thing on video - and if the spacers alone net half of the 20 whp / 30 wtq gains averaged over several runs, I'll attempt to eat them on the spot. The blood probably won't show over the red anodizing, but I'll do a close-up of the bite marks before my teeth break. I don't want the spacers - if they really help that much I'll be able to more than afford my own set after I take it up with the engineers at AMG. Even better - I'll take it up directly with Tobias Moers as we are apparently attending the same 3.5 day AMG DA Winter Driving event in Gimli this February.
Here's a uncorrected graph from today. This is a before and after on a 2004 SL55, Kleeman Shorties/No Cats, 83mm Pulley, and a Eurocharged tune. Car had brand new MB factory filters on the before runs. Customer's estimate on power gains were 1.7HP. I didn't make 1 cent on these spacers and the customer helped us dyno the car. I'm not even bothering to post a corrected graph, I can only imagine the claims that'll start. We also didn't make 100 before and after runs. We made 3 full pulls back to back and 30 mins later made 3 more. And it begins...
Here's a uncorrected graph from today. This is a before and after on a 2004 SL55, Kleeman Shorties/No Cats, 83mm Pulley, and a Eurocharged tune. Car had brand new MB factory filters on the before runs. Customer's estimate on power gains were 1.7HP. I didn't make 1 cent on these spacers and the customer helped us dyno the car. I'm not even bothering to post a corrected graph, I can only imagine the claims that'll start. We also didn't make 100 before and after runs. We made 3 full pulls back to back and 30 mins later made 3 more. And it begins...
nice... looks like all the doubting pretend know-it-alls have another dyno graph to try and disprove
Yeah no, my car has Kleemann cams, UPD intake spacer thing and eurocharged tune and makes um...465hp crank
Throttle bodies aren't opening fully, so my car isn't applicable for the moment. Nice to know that the intake spacer does something though. Gives me even more to look forward to once I finally get my act together and fit the new throttle bodies.
08-24-2016, 06:48 PM
I didn't make 1 cent on these spacers and the customer helped us dyno the car. I'm not even bothering to post a corrected graph, I can only imagine the claims that'll start. We also didn't make 100 before and after runs. We made 3 full pulls back to back and 30 mins later made 3 more. And it begins...
