SL55/63/65/R230 AMG: SL55 AMG Base Dyno Results
03-13-2019, 06:54 AM
#1
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Thread Starter
SL55 AMG Base Dyno Results
Took the SL to my LS3 tuner in NASCAR land (Mooresville NC) as I knew I could get a legitimate set of pulls done to establish a baseline. The owner, Alvin, is somewhat of a legend in the Charlotte area for his tuning expertise. If you have a car with an LSx engine, this is the guy to see.
It was low 40's with a neg 476 DA and I was pleasantly surprised at the numbers the 55 put down. Although differences in dyno readings between stock readings and mods is the all important metric, it seems evident that MB is pretty conservative in rating their engines.
Even though the car went in dyno mode easily, the tech had trouble keeping the car in 4th gear as it wanted to downshift. This resulted in him have to roll in on the throttle, somewhat affecting the slope of the curves. Anyway, the numbers speak for themselves, 445HP and 503Lb Ft TQ bone stock is stout to say the least.
For reference, my LS3 measured 397 HP and 398 LB Ft TQ after headers, a CAI and a custom dyno tune. My LS3 results are right in line with many others who own the same generation engine on the same Holden platform so I trust the dyno and the operators.
Not sure if the files loaded. If they didn't, somebody tell me how to do it (I dragged and dropped them) and I'll try again.
Bill
It was low 40's with a neg 476 DA and I was pleasantly surprised at the numbers the 55 put down. Although differences in dyno readings between stock readings and mods is the all important metric, it seems evident that MB is pretty conservative in rating their engines.
Even though the car went in dyno mode easily, the tech had trouble keeping the car in 4th gear as it wanted to downshift. This resulted in him have to roll in on the throttle, somewhat affecting the slope of the curves. Anyway, the numbers speak for themselves, 445HP and 503Lb Ft TQ bone stock is stout to say the least.
For reference, my LS3 measured 397 HP and 398 LB Ft TQ after headers, a CAI and a custom dyno tune. My LS3 results are right in line with many others who own the same generation engine on the same Holden platform so I trust the dyno and the operators.
Not sure if the files loaded. If they didn't, somebody tell me how to do it (I dragged and dropped them) and I'll try again.
Bill
03-13-2019, 08:15 AM
#3
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Thread Starter
I will be methodically modding the car. First up will be MBH headers and a Quaife LSD. Will likely happen before end of year depending on funds available. Following that a tune, a smaller pulley and more cooling. All in should get me another 85+WHP plus more TQ. Can't wait!
Bill
03-13-2019, 04:12 PM
#5
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The cars red line is 6100 rpm according to my understanding. For whatever reason, the tech chose not to take it that far, probably because little extra HP would be generated vs. the stress on the engine.
Thanks
Bill
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03-27-2019, 07:04 AM
#10
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Bill
04-04-2019, 11:09 AM
#11
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2004 CL55, 2003 SL55 and 2009 G55
Anyone know what if any impact it would have on results not putting in dyno mode? I had my car Dyno’d yesterday and completely forgot to ask him to do that...doohhh
Ran into same issue hitting limiter in 4th so pills were done in 3rd.
Just wanted some baseline numbers before do pulley and tune.
Ran into same issue hitting limiter in 4th so pills were done in 3rd.
Just wanted some baseline numbers before do pulley and tune.
04-04-2019, 03:16 PM
#12
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Thread Starter
Anyone know what if any impact it would have on results not putting in dyno mode? I had my car Dyno’d yesterday and completely forgot to ask him to do that...doohhh
Ran into same issue hitting limiter in 4th so pills were done in 3rd.
Just wanted some baseline numbers before do pulley and tune.
Ran into same issue hitting limiter in 4th so pills were done in 3rd.
Just wanted some baseline numbers before do pulley and tune.
04-06-2019, 06:16 PM
#13
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Those are good numbers on a stock car. Most are in the 410 to 430 range. Now for phase 2, start adding mods
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
04-07-2019, 06:54 AM
#15
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Thread Starter
Yes, they are extremely solid for a stock SL55. And valid given my previous experiences with the shop and comparisons of its' work to other engine dyno results for the same motor/platform.
09-01-2020, 04:13 PM
#17
Member
Thread Starter
Actually MB states the 2007 and 2008 SL55 models can theoritically achieve 208mph. A delimited 2002 Model was clocked at 202mph at Nardo Test Track in Italy in Dec 2001.
