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C300 Turbo Upgrade - Partner Needed

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C300 Turbo Upgrade - Partner Needed

 
Old 02-09-2019, 03:28 PM
  #301  
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Any updates?!
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Old 02-09-2019, 03:47 PM
  #302  
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Originally Posted by C300AWD View Post
Any updates?!
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 havenít done any 0-60 pulls yet but Iím pretty sure itís in the low-mid 4ís now

final numbers will be posted in a couple weeks ..just to show definitively what weíre making at the wheels


The car sounds amazing though..lots of burble and itís pretty easy to blow fire out the back when driven in manual shift mode

when itís under hard boost and the wastegate opens...it sounds badass!


Last edited by Ajagielski; 02-09-2019 at 07:04 PM.
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Old 02-09-2019, 08:40 PM
  #303  
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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
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Old 02-09-2019, 08:46 PM
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Originally Posted by Hrd_workin View Post
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 Iím 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 youíre looking to spend youíre going to see that youíll go from about 280wheel hp to almost 550-600wheel hp

after talking with Rob at AMR Iím going to get a c43/450 myself as itís really a much better platform for huge power.
for the money youíre looking to spend youíll 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 c43/450íand for around 10k you can double the power

Last edited by Ajagielski; 02-09-2019 at 08:50 PM.
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Old 02-10-2019, 12:09 AM
  #305  
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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!
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Old 02-10-2019, 12:11 AM
  #306  
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Originally Posted by Ajagielski View Post



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 Iím 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 youíre looking to spend youíre going to see that youíll go from about 280wheel hp to almost 550-600wheel hp

after talking with Rob at AMR Iím going to get a c43/450 myself as itís really a much better platform for huge power.
for the money youíre looking to spend youíll 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 c43/450íand 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
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Old 02-10-2019, 08:07 AM
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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 youíre going to be super happy with an upgrade. Iíll probably play with this c300 for a few more months and then swap out to a c43 or c63 myself

good luck!
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Old 02-11-2019, 05:39 AM
  #308  
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Originally Posted by Ajagielski View Post
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 youíre going to be super happy with an upgrade. Iíll 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 itís 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 Iím wrong but you did say yours still isnít totally done tuned? After what over 2 months?
and yet the C43 doesnít have anything set either
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Old 02-11-2019, 08:50 AM
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Originally Posted by Cartman417 View Post


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 itís 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 Iím wrong but you did say yours still isnít totally done tuned? After what over 2 months?
and yet the C43 doesnít 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. Itís 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 Iím pretty sure


You may be right though about the 0-60..itís most likely mid-high 4ís ..weíll see though when I get around to finding someway to test it

as far as the c43/450 ..youíre misinformed..AMR has upgraded turbo kits and has tuned hundreds of them..if you are skeptical you should call amr and talk to then

theyíre 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 09:27 AM.
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Old 02-11-2019, 01:16 PM
  #310  
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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 thereís no way theyíve done hundreds of C43s or C450s and there hasnít 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 thatís doubtful. Iíll message them and report back
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Old 02-11-2019, 01:20 PM
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Now if you just meant tuned hundreds of C43s. Ok. But not upgraded turbo ones
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Old 02-11-2019, 01:34 PM
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Originally Posted by Cartman417 View Post
Now if you just meant tuned hundreds of C43s. Ok. But not upgraded turbo ones

yes..theyíve tuned hundreds but have also done a bunch of turbo upgrades on them also

call Rob at AMR and talk to him

heís the one who told me a tune will get it to 3.0

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Old 02-11-2019, 01:42 PM
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Well heís for sure bull****ting right there cause I know the 2 fastest C43s and theyíre JB4 tuned and they run 3.2 or its 3.3 0-60

This is fastest that someone has actually posted proof of. If he says 3.0 he should prove it in my opinion
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Old 02-13-2019, 12:11 AM
  #314  
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Originally Posted by redsly View Post
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.
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Old 02-13-2019, 01:36 AM
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Originally Posted by ItalianJoe1 View Post
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.
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Old 02-15-2019, 12:33 PM
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Originally Posted by ItalianJoe1 View Post
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?
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Old 02-15-2019, 06:02 PM
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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.
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Old Yesterday, 10:03 AM
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Hey Ajagielski so if your car complete? The AMR tune and the Turbokits turbo working together correctly? Any other insight you want to share?
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Old Yesterday, 12:18 PM
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Originally Posted by suby01 View Post
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
Iíve 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. Iíve been ripping through it so fast that I ended up just buying 20 gallons of it last week so I donít run out

líll 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
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