Nearly stock Dyno
05-02-2006, 06:31 PM
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Nearly stock Dyno
I have a 2006 E55 with 3000 miles that has K&N filters and the larger driver-side snorkle mod. Thats it. My first baseline dyno is 450 rear wheel horses and 483 ft. lbs. torque!!
The mechanic doing the dyno couldn't believe it. He estimated the crankshaft HP to be 560! Where to from here? I'm almost afraid to mess with success.
The mechanic doing the dyno couldn't believe it. He estimated the crankshaft HP to be 560! Where to from here? I'm almost afraid to mess with success.
Last edited by Dean62; 05-02-2006 at 06:37 PM.
05-02-2006, 07:42 PM
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2003 E55 AMG
Your car is definitely healthy!! Congrats!
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 4th gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 4th gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
Last edited by vrus; 05-03-2006 at 10:13 AM.
05-02-2006, 08:23 PM
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'05 F-250 HD
Nice looking graph. I'm not sure what correction factor most use on this forum, but on the Viper and Supra forums most of us use SAE corrected numbers. If I had to guess your SAE corrected numbers would be around 430rwhp, which is still some great numbers.
Hopefully I'll be joining the E55 club in the next couple of weeks.
Hopefully I'll be joining the E55 club in the next couple of weeks.
05-02-2006, 08:29 PM
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Originally Posted by vrus
Your car is definitely healthy!! Congrats!
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 3rd gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 3rd gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
05-02-2006, 09:36 PM
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Originally Posted by vrus
Your car is definitely healthy!! Congrats!
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 3rd gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 3rd gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
Anyway, I suppose I could have worse problems. Nice to know where I am starting from.
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05-02-2006, 10:16 PM
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2019 GT2RS, 2021 AMG GT Black Series, 2020 G63 and 2022 Bentley Flying Spur
In an attempt to better understand ViperTT's reference to SAE corrected HP I poked around and found thew following link...http://www.land-and-sea.com/dyno-tec...horsepower.htm That provided me with more information then I could grasp after a long day. What I gleaned is that atmosphere and friction interplay to effect rwhp. Once corrected my actual rwhp may be less then I reported or more.
I will say that the temperature this morning was a perfect 62F and the relative humidity was approx. 9%. Those conditions exist in Philadelphia once in a blue moon.
Bottom line is that I have a damn fast car by chance mainly, I whacked a few unsuspecting souls on my way home from the office tonight and it was a fitting end to a great day. Oh, and Mr Redsox, I speak and (right no wright no sorry) write english without too much diffficulty.
I will say that the temperature this morning was a perfect 62F and the relative humidity was approx. 9%. Those conditions exist in Philadelphia once in a blue moon.
Bottom line is that I have a damn fast car by chance mainly, I whacked a few unsuspecting souls on my way home from the office tonight and it was a fitting end to a great day. Oh, and Mr Redsox, I speak and (right no wright no sorry) write english without too much diffficulty.
05-02-2006, 11:11 PM
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OK so I know that it may be sacrilegious but the truth is that I regularly beat the ***** off of the car. I mean nothing to hurt it but even in the first 1000 or so I frequently attempted to free the rear wheels from the effects of gravity.
The only ill effects that I can tell is a break squeal when the breaks are gently applied (not forcefully). I may have caused that although it seems to be a common problem. I will bring it back to the dealer next week and he will either adjust the problem away or replace the breaks. Otherwise the car is perfect (knock on wood)
Who knows everyone has a theory that they think is the ultimate answer. I don't profess to know. Give me lots of power and I'm happy. Maybe a new set of 19's or 20's would help as well.
The only ill effects that I can tell is a break squeal when the breaks are gently applied (not forcefully). I may have caused that although it seems to be a common problem. I will bring it back to the dealer next week and he will either adjust the problem away or replace the breaks. Otherwise the car is perfect (knock on wood)
Who knows everyone has a theory that they think is the ultimate answer. I don't profess to know. Give me lots of power and I'm happy. Maybe a new set of 19's or 20's would help as well.
05-02-2006, 11:13 PM
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Originally Posted by WayneE
3 things...
First, congrats.
Second, have the shop give you SAE corrected numbers.
Third, hit the track and PROVE you have a fast stocker
First, congrats.
Second, have the shop give you SAE corrected numbers.
Third, hit the track and PROVE you have a fast stocker
05-02-2006, 11:16 PM
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Originally Posted by WayneE
3 things...
First, congrats.
Second, have the shop give you SAE corrected numbers.
Third, hit the track and PROVE you have a fast stocker
First, congrats.
Second, have the shop give you SAE corrected numbers.
Third, hit the track and PROVE you have a fast stocker
Second I don't know that they know how to compute the SAE corrected numbers. Do you? What are the variables and I could probably do it myself.
Third, I've never pulled a run at a track but would love to try. Where do you race and how far is it from Philadelphia? I would be happy to come on down some Saturday or Sunday and attempt to prove my vehicles providence.
05-03-2006, 12:00 AM
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Originally Posted by Dean62
I have a 2006 E55 with 3000 miles that has K&N filters and the larger driver-side snorkle mod. Thats it. My first baseline dyno is 450 rear wheel horses and 483 ft. lbs. torque!!
The mechanic doing the dyno couldn't believe it. He estimated the crankshaft HP to be 560! Where to from here? I'm almost afraid to mess with success.
The mechanic doing the dyno couldn't believe it. He estimated the crankshaft HP to be 560! Where to from here? I'm almost afraid to mess with success.
05-03-2006, 12:09 AM
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Wrong Gear
Dean62 - If you want to compare RWHP #s to others on this Forum you need to Dyno your E55 in 4th Gear like the rest of the Forum Members have. Also, as "Vic55" pointed out, "Vrus" meant to say 4th gear and not 3rd. gear. Try it, we all would be interested in the results because your E55 sounds like it might be a strong one. 
- Bob
- Bob
05-03-2006, 12:27 AM
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Originally Posted by Evolution Marine
Dean62 - If you want to compare RWHP #s to others on this Forum you need to Dyno your E55 in 4th Gear like the rest of the Forum Members have. Also, as "Vic55" pointed out, "Vrus" meant to say 4th gear and not 3rd. gear. Try it, we all would be interested in the results because your E55 sounds like it might be a strong one. - Bob
- Bob
05-03-2006, 08:50 AM
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'05 F-250 HD
Originally Posted by Dean62
First thank you kindly.
Second I don't know that they know how to compute the SAE corrected numbers. Do you? What are the variables and I could probably do it myself.
Third, I've never pulled a run at a track but would love to try. Where do you race and how far is it from Philadelphia? I would be happy to come on down some Saturday or Sunday and attempt to prove my vehicles providence.
Second I don't know that they know how to compute the SAE corrected numbers. Do you? What are the variables and I could probably do it myself.
Third, I've never pulled a run at a track but would love to try. Where do you race and how far is it from Philadelphia? I would be happy to come on down some Saturday or Sunday and attempt to prove my vehicles providence.
Basically the same dyno pull can be viewed with different correction factors. If you're curious, you can call the dyno shop and ask them to print the above graph in SAE. On the average, STD corrected numbers are approx. 20rwhp+/- higher than SAE corrected numbers.
In the end, the track doesn't care about SAE or STD corrected numbers.
05-03-2006, 09:16 AM
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02 E55
Get the shop to email you your dyno files then go here:http://www.dynojet.com/downloads/software.php# and DL the free file viewer. This program can read your files and allows you to view them in either STD or SAE plus many other functions. It has been a while since I played with WinPEP so the program might have changed but it's pretty cool.
05-03-2006, 04:59 PM
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Originally Posted by vrus
Your car is definitely healthy!! Congrats!
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 4th gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
It looks as though they did the dyno pull in 3rd gear because they ran the car to 6,400RPM. You really need to do the pulls in 4th gear in order to do a proper comparison against others on the board because that is the closest to a 1:1 transmission ratio in our cars.
john
05-03-2006, 05:14 PM
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2003 E55 AMG
You are absolutely right in what you are saying, but, in 4th gear, once you get past the 5,500RPM point the engine wont generate any more power anyways. In 3rd gear, it seems to hold the power it makes from 5,500RPM to 6,200RPM.
Originally Posted by housclass
the only problem with a dyno run in 4th gear when the car is stock is the engine will only pull to 5400rpm...then you hit the speed limiter...this was the problem i had...i got 423hp and 477tq...in 4th but thought the car might have some more (hp) in it with some more rpm??? just my $.02 worth!
john
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05-03-2006, 10:28 PM
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05-04-2006, 01:23 AM
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'10 MB E63, '08 ML550 ('05 E55, '05 SL55, '08 E63 GONE)
Dyno's are great for testing before and after mods, but comparing results from one car on one dyno, to another car on a different dyno is pretty much a meaningless comparison. These machines are rarely validated or routinely calibrated so results can vary (sometimes substantially) from dyno to dyno.
~ Ian
~ Ian
