Custom LET Tune vs. Stock E55
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From: San Ramon, CA
A Prius because I'm green
I believe the quickest stock E55 is running 11.7's. That's a pretty strong number and I think people will be chasing that one for a while, but you never know. I also believe he ran them on PS2 street tires...
.
You better hurry up because that modding bug is a nasty one.
You should purchase some DR's if you plan on hitting the track often. This will be your quickest way of hitting the 60 foot time you're hoping for.
.You better hurry up because that modding bug is a nasty one.
You should purchase some DR's if you plan on hitting the track often. This will be your quickest way of hitting the 60 foot time you're hoping for.
Well then I will have to see what is out there. Yours seem to work pretty good. I may have to get some and just go back out this Friday. Tell 996 if he wants to run that's where I'll be! I got work to do!
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2006 E55 AMG
I'm sure mine are horrible since I wasn't doing burn outs to save the tires. I was using my first time as a baseline and worse case scenario. I have Conti contact3s on 19inch SL rims. Would running DR's not be running stock technically in some eyes or no? What's the rule on this?
Here's his info on dragtimes.com
http://www.dragtimes.com/Mercedes-Be...lip-11697.html
Thread Starter
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From: San Ramon, CA
A Prius because I'm green
Hmmm...good question.
Here's his info on dragtimes.com
http://www.dragtimes.com/Mercedes-Be...lip-11697.html
Here's his info on dragtimes.com
http://www.dragtimes.com/Mercedes-Be...lip-11697.html
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2006 E55 AMG
Do you have stock 18's available? preferably 18 x 9.
http://www.mickeythompsontires.com/s...StreetRadialII
Thread Starter
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From: San Ramon, CA
A Prius because I'm green
I'll go and hang out and we could work on getting your car to lower times. We could meet up in Tracy and I'll tag along.
Do you have stock 18's available? preferably 18 x 9.
http://www.mickeythompsontires.com/s...StreetRadialII
Do you have stock 18's available? preferably 18 x 9.
http://www.mickeythompsontires.com/s...StreetRadialII
Nope she came with 19in AMG wheels. It's rare for an E Class but Mercedes told me it was either ordered or one of the few that came that way. I can just do what you do run 19 up front and 18 in the rear.
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From: California, USA
E63 P30, CL500 Sport
..... my car is 100% stock and is supposed to be limited to 186 mph (factory increased from 155 mph due to P30 package), but on the dyno, the car allowed us to hit 190 mph before bouncing us off the speed limiter. Similarly, I've seen two other 55k cars that were supposed to be limited to 155 mph from the factory, but one of them was able to hit 162 mph while the other could not exceed 152 mph 
There seems to be a gray area around how the limiter works..... regardless of what technology is actually employed, I think it is safe to say that the speed limiter is not 100% accurate.
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From: San Ramon, CA
A Prius because I'm green
Actually that is not always true ..... my car is 100% stock and is supposed to be limited to 186 mph (factory increased from 155 mph due to P30 package), but on the dyno, the car allowed us to hit 190 mph before bouncing us off the speed limiter. Similarly, I've seen two other 55k cars that were supposed to be limited to 155 mph from the factory, but one of them was able to hit 162 mph while the other could not exceed 152 mph
There seems to be a gray area around how the limiter works..... regardless of what technology is actually employed, I think it is safe to say that the speed limiter is not 100% accurate.
..... my car is 100% stock and is supposed to be limited to 186 mph (factory increased from 155 mph due to P30 package), but on the dyno, the car allowed us to hit 190 mph before bouncing us off the speed limiter. Similarly, I've seen two other 55k cars that were supposed to be limited to 155 mph from the factory, but one of them was able to hit 162 mph while the other could not exceed 152 mph There seems to be a gray area around how the limiter works..... regardless of what technology is actually employed, I think it is safe to say that the speed limiter is not 100% accurate.
Good point but isn't the Performance package a new thing, my car is an 2005? On that note I wish it wasn't a package I think all new AMGs should be delimited and have an LSD as standard equipment. If Gramps wants to buy a C63 for cruising and doesn't need the package then why is he even driving the car in the first place? I have been told from a few MB dealers that they have seen cars come delimited. Apparently MB doesn't car what the green party thinks about their cars when they ship them to the States.
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2006 E55 AMG
Good point but isn't the Performance package a new thing, my car is an 2005? On that note I wish it wasn't a package I think all new AMGs should be delimited and have an LSD as standard equipment. If Gramps wants to buy a C63 for cruising and doesn't need the package then why is he even driving the car in the first place? I have been told from a few MB dealers that they have seen cars come delimited. Apparently MB doesn't car what the green party thinks about their cars when they ship them to the States.
Mike, isn't 162 pretty close to what you got before bouncing off the limiter?
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Thread Starter
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From: San Ramon, CA
A Prius because I'm green
No I agree with what he says I was just rambling. I was at first thinking how having a different size wheel on would effect but your handy calculator that you posted earlier says no way in hell. Clearly it's not a standard to limit at 155 just more of a rule and my car apparently likes breaking rules. Can anyone really tame the AMG beast?
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A search on my posts will reveal that I too had my *** handed to me by a stock cls55, same 20" wheels, I had a wider tire, with the 172 pulley custom tune and cm30 pump. It feels faster in day to day driving but failed miserably on the man to man test.
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From: Hollywood CA
2011 twin turboed prius
I think the timeslip shows clearly Azipod has performance issues.
He got a slight jump at the light, the terrible 60 ft time allowed the stock car to even up and pass but really after Azipod stops spinning he should have caught up and passed. However the "stock" 55 in the video and on the timeslip is pretty stout, as 12.50's with a 2+ 60 ft time is strong.
The trap speeds show the cars are making very similar hp both 116.X with the modded 55 having perhaps a 5-10 hp advantage. Something is wrong with the car after reviewing the slip.
It is likely something more serious than the tune , pump issue, fuel, weight something slowed this car.
Azipod's 55 with the mods listed should have benn in the 11's 11.8-12.0 118-120 ish.
Stock 55's are very capable of running incredible times out of the box , mods untuned or tuned incorrectly will defeat the gains and on a track the second pull usually just results of more of the same, a feeling as if your car is in mud.,
I would absolutely check the car, pull the codes and try and get something fixed, it may not have anything at all to do with the tune. It is clear the car is under duress throughout the pass. 2.2 60 ft times at sac are also common so please do not feel I am slamming the driver, it is a difficult place to "hook"
Thios makes Alan's time that much more impressive. Ahmad looks like things will be heating up this winter eh?
He got a slight jump at the light, the terrible 60 ft time allowed the stock car to even up and pass but really after Azipod stops spinning he should have caught up and passed. However the "stock" 55 in the video and on the timeslip is pretty stout, as 12.50's with a 2+ 60 ft time is strong.
The trap speeds show the cars are making very similar hp both 116.X with the modded 55 having perhaps a 5-10 hp advantage. Something is wrong with the car after reviewing the slip.
It is likely something more serious than the tune , pump issue, fuel, weight something slowed this car.
Azipod's 55 with the mods listed should have benn in the 11's 11.8-12.0 118-120 ish.
Stock 55's are very capable of running incredible times out of the box , mods untuned or tuned incorrectly will defeat the gains and on a track the second pull usually just results of more of the same, a feeling as if your car is in mud.,
I would absolutely check the car, pull the codes and try and get something fixed, it may not have anything at all to do with the tune. It is clear the car is under duress throughout the pass. 2.2 60 ft times at sac are also common so please do not feel I am slamming the driver, it is a difficult place to "hook"
Thios makes Alan's time that much more impressive. Ahmad looks like things will be heating up this winter eh?
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'91 964 Turbo, '02 E55's & '14 E63s-w
I have no clue how people are making assumptions on LET tune based on just one car
There could have been issues with that particular car or the other car could be a strong running stock E 55.
If you read the archives,you will see there is always LET vs Powerchip controversy going on..
The bottom line is,modified cars are always a friggin problem.
There could have been issues with that particular car or the other car could be a strong running stock E 55.
If you read the archives,you will see there is always LET vs Powerchip controversy going on..
The bottom line is,modified cars are always a friggin problem.
!
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haters crazy
My burnout is as seeing on the video and I try to keep that as consistent as possible.
Here's the technique that landed my my personal best:
I come up to the line, bump the 2nd stage light, get on the brakes, gas slightly to remove drive-train slack, come back to idle, and floor it. That seemed to work best for me last night. At first I was easing into the throttle of the line but that wasn't getting me the 60's I wanted. This is when Mike suggested doing what I just explained, which got me a 1.689 (personal best). I had several 1.7's and one other 1.698 with this method. When I hooked it felt like that was the best my car could get with that method at that time. I had no slippage at all, just squatted and took off.
Here's the technique that landed my my personal best:
I come up to the line, bump the 2nd stage light, get on the brakes, gas slightly to remove drive-train slack, come back to idle, and floor it. That seemed to work best for me last night. At first I was easing into the throttle of the line but that wasn't getting me the 60's I wanted. This is when Mike suggested doing what I just explained, which got me a 1.689 (personal best). I had several 1.7's and one other 1.698 with this method. When I hooked it felt like that was the best my car could get with that method at that time. I had no slippage at all, just squatted and took off.
I have a few things up my sleeve as well, lets see if they pay off
Last edited by blackbenzz; Jul 5, 2009 at 12:15 PM.
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haters crazy
82mm TB, 3.5" intake piping, SLR injectors, and ice reservoir... for now. I can't post about one other thing I have planned since I dont know if I will be able to do it and anoher reason I dont want to post. If I can pull it off get ready for some low 10's in a benz
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2006 E55 AMG
. All I could say is you're one bad ****. Best of luck obtaining your goals, if anyone deserves it it's you and mike. You both put down the leg work trying to make your own cars faster and faster....much respect to both of you.
Out Of Control!!
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haters crazy
Best of luck to you as well. I have all the parts, the TB and intake are already on the car. Just waiting on LET to come out for a tune before I install the injectors
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From: NorCal
W211,E90,E66,E39,E38,NSX,Z32-TT
Do you guys think it's the tune? LET was able to get a tremendous amount of TQ down low but HP was not very impressive at all, considering the mods.
I feel that the tune characteristics played out correctly at the track. I had massive traction problems at launch (high TQ) coupled with low trap speed at the 1/4 mile (low HP at peak).
During our last run (video), I thought I got him because we had an identical launch. However, once our tires were hooked, I was so shocked to see him walk away from me!
I've attached a copy of my last dyno to show the low HP but relatively high torque.
Left Lane #131 - 12.880 @ 116.234 - Custom LET Tune, 180 Pulley, & H/E
Right Lane #105 - 12.558 @ 116.999 - STOCK
http://www.youtube.com/watch?v=7c5-27v397U
I feel that the tune characteristics played out correctly at the track. I had massive traction problems at launch (high TQ) coupled with low trap speed at the 1/4 mile (low HP at peak).
During our last run (video), I thought I got him because we had an identical launch. However, once our tires were hooked, I was so shocked to see him walk away from me!
I've attached a copy of my last dyno to show the low HP but relatively high torque.
Left Lane #131 - 12.880 @ 116.234 - Custom LET Tune, 180 Pulley, & H/E
Right Lane #105 - 12.558 @ 116.999 - STOCK
http://www.youtube.com/watch?v=7c5-27v397U
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haters crazy
^ When I went from a generic Kleemann tune to a LET dyno tune I barely gained any peak hp. Maybe like 3whp but the gains under the curve were enormous. BUT I did see several E55s see huge gains throughout the powerband after an LET dyno tune (including peak hp). Put some drag radials on your car and put that low down power to use and see what happens
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From: San Ramon, CA
A Prius because I'm green
Yes but what is wrong with this car? Is it not clear that we are trying to help out a track buddy by asking for peoples opinions. If I didn't respect the people on here I wouldn't have posted it. I think that is what this forum is for right, to help inform one another of various things whether it's good or bad. This forum helped me figure out that my stock pump is too small and was going bad as they usually do after long and hard sprints. Because we question the car having issues on here is that bashing MB? It was from other people having this issue and sharing it that helped me get the pump replaced since no codes would come up and I was getting the blame for running to hard in the heat. So why can't I question a tuner if the car having problems has a tune?
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From: Bay Area
2015 E63S, 2018 E63S
I have no clue how people are making assumptions on LET tune based on just one car
There could have been issues with that particular car or the other car could be a strong running stock E 55.
If you read the archives,you will see there is always LET vs Powerchip controversy going on..
The bottom line is,modified cars are always a friggin problem.
There could have been issues with that particular car or the other car could be a strong running stock E 55.
If you read the archives,you will see there is always LET vs Powerchip controversy going on..
The bottom line is,modified cars are always a friggin problem.
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2006 E55 AMG
I still believe something is wrong with his car even though it was his first time to the track. During my 1st time I ran anywhere from 13.2 - 11.7 but my trap stayed within a 1 mph. His traps were low for his mod...IMO.
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1989 Toyota Tercel EZ - dyno'd @ 70whp/77wtq
Looking at his A/F ratio, it seems his tune is leaner than mine... about 0.3 diff across RPM band.
Since my car and Azipod's have relatively similar setup, this is the ***ROUGH*** comparison (based on visual translation of dyno charts). Take it for what it's worth.
Azipod's: Dyno taken in ~70*F, 180mm pulley, LET tune, -10 mod, upgraded H/E, stock wheels
Mine: Dyno taken in ~95*F, 168mm pulley, LET tune, stock H/E, 20" wheels (may be about 2-3 lbs heavier per corner plus bigger diameter)
RPM - Azipod's HP - My HP - Diff
3000 275 215 60
3500 325 290 35
4000 355 325 30
4500 380 355 25
5000 395 380 15
5500 403 395 8
6000 380 380 0
Peak 403 395.8 7.2
==> Notice that the gap disappears as RPM increases. Peak's RPM is about the same.
RPM - Azipod's TQ - My TQ - Diff
3000 480 350 130
3500 475 434 41
4000 460 428 32
4500 445 415 30
5000 420 402 18
5500 380 380 0
6000 345 335 10
Peak 495 434.1 60.9
===> Notice that the gap disappears as RPM increases. Peak's RPM is about the same.
RPM - Azipod's AF - My AF - Diff
3000 14.2 14.1 0.1
3500 13.6 13.3 0.3
4000 12.8 12.3 0.5
4500 11.9 11.8 0.1
5000 11.7 11.3 0.4
5500 11.3 11.23 0.07
6000 11.3 10.9 0.4
==> Notice that Azipod's AF is leaner across the RPM band.
My lower peak numbers may be explainable by smaller pulley, more conservative A/F ratio, bigger & heavier wheels & higher temp during the dyno.
Now, I'll let you experts investigate what's going on w/ Azipod's car (and my car
)... my guess is Azipod's car can't get enough air up top for whatever reason. That's why I was guessing air filter.
Last edited by zoink; Jul 5, 2009 at 08:31 PM.
