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sort of ..I had my c300 at AMR for 2 weeks and during that time they were able to do some dyno sessions and get the tune locked in ....unfortunately I had a meth purge incident that fried the spark plugs previous to the tune..so the dyno numbers came in st 260whp/350tq
after taking it off the dyno they replaced the plugs (which were in terrible shape) and increased the size of the meth nozzle (500cc injector )
but due to extreme cold weather their dyno was down for a few days..I neeed my car back so we were unable to get another dyno session in
im planning on going back in a couple weeks to test the final numbers ..but according to the last dyno session and the change to the plugs and increase in the meth injection we should be right around the 300whp/400tq area
the car is WAY faster than stock and pulls HARD
its holding a consistent 25lbs of boost ..I haven’t done any 0-60 pulls yet but I’m pretty sure it’s in the low-mid 4’s now
final numbers will be posted in a couple weeks ..just to show definitively what we’re making at the wheels
The car sounds amazing though..lots of burble and it’s pretty easy to blow fire out the back when driven in manual shift mode
when it’s under hard boost and the wastegate opens...it sounds badass!
Last edited by Ajagielski; 02-09-2019 at 06:04 PM.
Hey AJ,
Thanks for the update AJ and congrats again.
Just gaining some more info before ordering everything, with parts and tune for my C450 looking at just about $11K.
Just so that I can understand the C300 is listed stock around 241hp and 273ft-lb. I recall you mentioned you had a tune, down pipes and exhaust correct?
If so, after the upgrades you all are seeing 60hp increase and a big jump in torque.
For some reason in my mind with all of that and the new turbos at a high boost I would think the gains would be greater, right? Am I missing something? Maybe my understanding of hp v.s dyno whp vs crank?
Thanks again for leading the way and any thoughts.
best regards
Hey AJ,
Thanks for the update AJ and congrats again.
Just gaining some more info before ordering everything, with parts and tune for my C450 looking at just about $11K.
Just so that I can understand the C300 is listed stock around 241hp and 273ft-lb. I recall you mentioned you had a tune, down pipes and exhaust correct?
If so, after the upgrades you all are seeing 60hp increase and a big jump in torque.
For some reason in my mind with all of that and the new turbos at a high boost I would think the gains would be greater, right? Am I missing something? Maybe my understanding of hp v.s dyno whp vs crank?
Thanks again for leading the way and any thoughts.
best regards
the c300 is 190hp at the wheels stock with like 200tq
so my 300whp /400tq is a BIG improvement on such a small motor ..and I’m about 8-9k into the upgrade. Probably not the best return on hp to dollar but fun nonetheless. The c450/43 is a great platform for bigger gains
for the 11k you’re looking to spend you’re going to see that you’ll go from about 280wheel hp to almost 550-600wheel hp
after talking with Rob at AMR I’m going to get a c43/450 myself as it’s really a much better platform for huge power.
for the money you’re looking to spend you’ll be extremely happy
I just dropped 45k into my Jeep SRT to increase the power from 450wheel to 900 wheel hp ..so for me it makes Sense to get a c43/450’and for around 10k you can double the power
Last edited by Ajagielski; 02-09-2019 at 07:50 PM.
Not trying to discourage anything here, but I just just recently heard that are "so many 274 engines with melted pistons (at the warranty parts facility) that (they) can barely walk around!" It was then said that "we're seeing this throughout the country (U.S.), EXCEPT in the North East."
I've personally only replaced pistons in them for noise not damage, but have no idea why the NE would be any different.
Instead of waiting on this I upgraded to a C450. Much happier now!
the c300 is 190hp at the wheels stock with like 200tq
so my 300whp /400tq is a BIG improvement on such a small motor ..and I’m about 8-9k into the upgrade. Probably not the best return on hp to dollar but fun nonetheless. The c450/43 is a great platform for bigger gains
for the 11k you’re looking to spend you’re going to see that you’ll go from about 280wheel hp to almost 550-600wheel hp
after talking with Rob at AMR I’m going to get a c43/450 myself as it’s really a much better platform for huge power.
for the money you’re looking to spend you’ll be extremely happy
I just dropped 45k into my Jeep SRT to increase the power from 450wheel to 900 wheel hp ..so for me it makes Sense to get a c43/450’and for around 10k you can double the power
Thanks for the explaination; makes sense. Yes definitely a big upgrade from the original 190hp. Gotta be a blast to drive now.
Also makes it a smoother decision to get those parts ordered and started from Turbokits. As I am indeed looking forward to see and feel the next progression in hp increase.
Btw Thats a pretty wicked SRT, congrats.
Thanks again
Acvording to Rob at AMR they do a ton of tunes on the c450/43 cars and have had nothing but great luck with them
I think you’re going to be super happy with an upgrade. I’ll probably play with this c300 for a few more months and then swap out to a c43 or c63 myself
Acvording to Rob at AMR they do a ton of tunes on the c450/43 cars and have had nothing but great luck with them
I think you’re going to be super happy with an upgrade. I’ll probably play with this c300 for a few more months and then swap out to a c43 or c63 myself
good luck!
you are no way a low 4sec car. At BEST maybe mid 4s
and what does AMR or any tuner know about upgrades C43s? There has been no data posted up about them being complete and ready.
If they did any tuner would be boasting how they have upgraded a C43 and show dynos.
575rwhp tops at best. Anything higher and it’s prob in the territory of dangerous tuning as far as timing and AFR running lean.
I find it funny that C63 has upgraded turbos. Now sort of C300 cause no one from what I read on here has a fully tuned and can take theirs out day to day to romp on it. Cause correct me if I’m wrong but you did say yours still isn’t totally done tuned? After what over 2 months?
and yet the C43 doesn’t have anything set either
you are no way a low 4sec car. At BEST maybe mid 4s
and what does AMR or any tuner know about upgrades C43s? There has been no data posted up about them being complete and ready.
If they did any tuner would be boasting how they have upgraded a C43 and show dynos.
575rwhp tops at best. Anything higher and it’s prob in the territory of dangerous tuning as far as timing and AFR running lean.
I find it funny that C63 has upgraded turbos. Now sort of C300 cause no one from what I read on here has a fully tuned and can take theirs out day to day to romp on it. Cause correct me if I’m wrong but you did say yours still isn’t totally done tuned? After what over 2 months?
and yet the C43 doesn’t have anything set either
mine is fully tuned..it took a while because we had a mechanical boost leak that was hard to find..and I had to get my car back so that has stalled the tuning. It’s fully tuned now and runs fine as a daily driver
I beat the snot out of it and it runs great
You also have to realize that my c300 is the first big turbo that AMR has really messed with so it took some time to develop a tune that was safe and reliable without disabling any of the factory ecu safeties that are built in.
now that mine is tuned they can send a tune for this upgrade out in a handheld Programmer I’m pretty sure
You may be right though about the 0-60..it’s most likely mid-high 4’s ..we’ll see though when I get around to finding someway to test it
as far as the c43/450 ..you’re misinformed..AMR has upgraded turbo kits and has tuned hundreds of them..if you are skeptical you should call amr and talk to then
they’re making huge power from them
oh and by the way ..according to AMR they can tune a bone stock c43 and reduce the 0-60 from 4.3 to a 3.0 sec flat with just a tune
so it sounds like they have something figured out
Last edited by Ajagielski; 02-11-2019 at 08:27 AM.
Not trying to be a dick but sounds like you are misinformed. Their tune and no ones tune takes it down to 3.0. Not even close. That would suggest an almost flat 11 with just a tune.
And i I will contact amr because there’s no way they’ve done hundreds of C43s or C450s and there hasn’t been one post about it from anyone. I could see if there were enough that you could count on your fingers on one hand but even then that’s doubtful. I’ll message them and report back
Not trying to discourage anything here, but I just just recently heard that are "so many 274 engines with melted pistons (at the warranty parts facility) that (they) can barely walk around!" It was then said that "we're seeing this throughout the country (U.S.), EXCEPT in the North East."
I've personally only replaced pistons in them for noise not damage, but have no idea why the NE would be any different.
Instead of waiting on this I upgraded to a C450. Much happier now!
Fuel quality. They melt down the front of #1 piston due to detonation when people run poor fuels, the protection strategy in the M/E isn't aggressive enough for the cheap gas and the way people drive.
Fuel quality. They melt down the front of #1 piston due to detonation when people run poor fuels, the protection strategy in the M/E isn't aggressive enough for the cheap gas and the way people drive.
Thanks for the info!
I figured it was cheap gas causing detonation, but didn't know it was cylinder #1. Coincidentally enough, that just happens to be the only cylinder I've personally seen misfires in and that's only been a few times.
Foreman passed the aforementioned information recently while I was replacing pistons, so I only got what was reiterated.
Fuel quality. They melt down the front of #1 piston due to detonation when people run poor fuels, the protection strategy in the M/E isn't aggressive enough for the cheap gas and the way people drive.
Are you talking about buying cheap quality fuel as from Costco, Citco type brands? Or also low octane someone putting in 87?
I assumed lower octane, because detonation can happen at higher compression ratios if you don't increase octane rating.
The octane rating SHOULD be the same throughout the market, but we all heard of some places having contaminated, water, etc. in fuels and that is a different story.
@ItalianJoe1, do you know if this is seen more in vehicles that they removed the low-temperature coolant circuit from? I was wondering if that had anything to do with it after I heard about them detonating.
Hey Ajagielski so if your car complete? The AMR tune and the Turbokits turbo working together correctly? Any other insight you want to share?
so far everything is perfect
car runs and drives great with lots of power compared to stock
the boost comes on fast so it pulls much harder down low compared to stock turbo
I’ve got about 500 miles on the tuned setup. I do use a pretty fair amount of meth though so if you do this setup be prepared to buy a ton of meth. I’ve been ripping through it so fast that I ended up just buying 20 gallons of it last week so I don’t run out
l’ll be heading back to the dyno in a few weeks though just to make sure everything is running perfectly as well as verifying the numbers again
Hello AJ,
Hope this finds you well.
Been sometime, how are things running with the turbo and meth setup since you put 500 miles on it last?
Have you been able to get your final dyno numbers yet?
Appreciate the feedback
Best regards
Hello All, here is the before and after on our first round of testing. Keep in mind this is a 100% stock 2015 C300 4Matic for the before and ONLY the turbo upgrade and tune after. As we mentioned in the previous post, the top end is suffering from the exhaust restriction. Imagine if you will that the HP stays on an upward trajectory and you can envision about where it will be once the restriction gone. Anyway, we have 2 test cars now on the list, so we should be able to show you our round 2 results shortly. Thanks for following!
Is this the result of stock C300 with turbo and methanol upgrade? Is there any updates on this turbo yet? 0-100? Dyno with full exhaust and intake setup?
Is this the result of stock C300 with turbo and methanol upgrade? Is there any updates on this turbo yet? 0-100? Dyno with full exhaust and intake setup?
Hopefully soon, final DYNO booked in 2 weeks for a C300, Turbo Back Ex & Water Meth with our Turbo Upgrade and AMRs prototype tune!
02-09-2019, 02:47 PM
