C450 Acceleration Testing
It barely had 3000kms (2000miles) on it!
And it's such a no brainer to launch! Especially compared to my old rear drive AMGs or even my old C5 Vette (which ran the same #'s with a modified V8 and lighter body!)
That being said, I am hesitant on getting a piggyback for these cars. I'd rather see an actual ECU flash and the numbers behind that than a simple plug and play.
A gentleman in a C400 has the AMR tune on his ECU and ran 108, so I am thinking a flash on the C450 might be able to get to 110ish...
As mentioned in my earlier posts the C450 is about 300whp stock, and 320twq...at a weight of about 4000lbs it should trap around 108 mph stock...I'm thinking a proper flash could gain around 40 whp but I am not sure what to expect as this is all speculative.
What we need is an experienced driver on the forum to take his/her C450 to the track stock, get a good 60ft and see where we are stock. I'd volunteer although all my racing experience unfortunately has been at stoplights or on highways (closed courses of course : ) )
That being said, I am hesitant on getting a piggyback for these cars. I'd rather see an actual ECU flash and the numbers behind that than a simple plug and play.
A gentleman in a C400 has the AMR tune on his ECU and ran 108, so I am thinking a flash on the C450 might be able to get to 110ish...
As mentioned in my earlier posts the C450 is about 300whp stock, and 320twq...at a weight of about 4000lbs it should trap around 108 mph stock...I'm thinking a proper flash could gain around 40 whp but I am not sure what to expect as this is all speculative.
What we need is an experienced driver on the forum to take his/her C450 to the track stock, get a good 60ft and see where we are stock. I'd volunteer although all my racing experience unfortunately has been at stoplights or on highways (closed courses of course : ) )
I have plenty of drag race experience,but strips up here are closed until Spring.I will continue to test with my GT2 and report results.I want to wait until I have 5000 miles to do further testing to see if the engine loosens up.
The Best of Mercedes & AMG
I mistakenly thought the GL450 that OE tuning tuned, was a different engine/powertrain than our Mercedes. I believe I was wrong and want to apologize.
A member named Cajun started a c450 website and on it, a vendor broadcasts an ECU flash available for the C450 that shows substantial gains and also claims it is the same tune for a GLE450 and GL450.
I dug deeper, and in fact the 2015 GL450 has the same m276 dela 30 engine that the C450 has. This then means, the ~100 whp, 120 wtq based on an ECU flash (gains for 91 octane on get this, a mainline dyno--notorious heart breakers) should be applicable to the C450.
In summary then, this tune would make the car an absolute animal given these gains on a mainline dyno roughly equate to about 140 whp 170 wtq on a "dynojet."
Again this is all speculative but one can imagine what an extra 100whp can do to a car that I believe traps 108 ish stock : )
Sorry OE tuning, and keep up the good work
Furthermore, I spoke to a gentleman at OE who sent me the AFRs for the above flash and the tune is in a very conservative range which is nice and he assured me these Merecedes motors/trannies can handle far more abuse.
We will see, I am on the fence at the moment about flashing the ECU sooner than later. I will for sure do it, it's just a matter of when. I think we all just need to be a bit more patient and give these tuners a bit more time.
Last edited by sliqdaddy91; Nov 21, 2015 at 11:58 AM.
Furthermore, I spoke to a gentleman at OE who sent me the AFRs for the above flash and the tune is in a very conservative range which is nice and he assured me these Merecedes motors/trannies can handle far more abuse.
We will see, I am on the fence at the moment about flashing the ECU sooner than later. I will for sure do it, it's just a matter of when. I think we all just need to be a bit more patient and give these tuners a bit more time.

EDIT: Fluid overheating is a separate issue. If the car starts holding gears to higher RPM you know you have overheated the fluid & it is diverting more fluid via the cooler at higher pump speed which = transmission input shaft speed. That said the TC is the largest single source of fluid heating.
Last edited by Glyn M Ruck; Nov 23, 2015 at 10:12 PM.
Spoke with Pat who's a really nice guy... It was like speaking with an old friend!
I have also heard great things about Jeremy the owner of OE Tuning. If he put those numbers on his website, it means he's done all of his due diligence & homework!
And yes, with those numbers, the C400 & C450 would be absolute beasts, especially with the 4matic! Look at those torque numbers! I wouldn't be surprised if this tune would outright beat the C63s!
EDIT: Fluid overheating is a separate issue. If the car starts holding gears to higher RPM you know you have overheated the fluid & it is diverting more fluid via the cooler at higher pump speed which = transmission input shaft speed. That said the TC is the largest single source of fluid heating.
Last edited by oldman&theC; Nov 24, 2015 at 04:54 AM.
Furthermore, I spoke to a gentleman at OE who sent me the AFRs for the above flash and the tune is in a very conservative range which is nice and he assured me these Merecedes motors/trannies can handle far more abuse.
We will see, I am on the fence at the moment about flashing the ECU sooner than later. I will for sure do it, it's just a matter of when. I think we all just need to be a bit more patient and give these tuners a bit more time.
I can vouch for OE as I have their tune on my c350. I still would like to see a dyno from actual members with the 450 engine. A lot of these tuners advertise PEAK HP + TQ numbers which are not useable to 90% of the buyers. I would like to see the low-end and midrange HP + TQ increase, not peak HP + TQ in a specific gear near 6000+ RPM.
I was advertised a +25hp & 25tq increase for my tune however, I rarely see that as the useable HP + TQ increase. What I actually gained useable was about 8HP-14TQ increase. This was on AWD dyno.
cajun1689 should definitely be in the 12's if he can get the 60s down. If he can get 1.7-1.9 he should be at least 12.8-12.9.
Have you guys been able to do a 0-100km or 0-60mph test and, if so, what were the numbers and how do they compare to the manufacturer reported numbers?
Last edited by oldman&theC; Dec 5, 2015 at 06:58 AM.


