K1 Dyno on E55
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CLK500/Range Rover HSE/E55 AMG/Bmw 328Xi coupe/BMW 4.8x/Bmw 335i/GS350/Audi S5/E350
K1 Dyno on E55
Hey everyone as I posted before, I just got my K1 installed onto my 04 E55. I had the ECU done 2 weeks ago and go the pulley installed on wednesday. I dyno'd my car today at noon time.
Green run is my baseline dyno. Yes I know. I have a low powered E55
But what can I do! The blue run is with the sprint booster installed. And the red run is with the sprint booster taken off. I understand that 403 rwhp is low for an K1 E55 BUT I am not dissappointed as my car is MUCH more powerful than stock. I gained almost 50 lbft of torque. I can definately feel the torque through out the power band. I mean the car keeps on pulling and pulling and doesn't stop. My dyno guy said that with the sprint booster the linearity of the throttle past 3/4 felt weird and didn't feel linear.
Baseline dyno- 370 rwhp/410 torque
K1+Sprintbooster - 392 rwhp/464 torque
K1 - 403 rwhp/452 torque
What do you guys think? Let me know your thoughts
Green run is my baseline dyno. Yes I know. I have a low powered E55
But what can I do! The blue run is with the sprint booster installed. And the red run is with the sprint booster taken off. I understand that 403 rwhp is low for an K1 E55 BUT I am not dissappointed as my car is MUCH more powerful than stock. I gained almost 50 lbft of torque. I can definately feel the torque through out the power band. I mean the car keeps on pulling and pulling and doesn't stop. My dyno guy said that with the sprint booster the linearity of the throttle past 3/4 felt weird and didn't feel linear. Baseline dyno- 370 rwhp/410 torque
K1+Sprintbooster - 392 rwhp/464 torque
K1 - 403 rwhp/452 torque
What do you guys think? Let me know your thoughts
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W211 E55
1) See if you can get the numbers corrected for Standard or SAE.
2) Ask if they can apply a smoothing factor of 2 to 4, then see what the numbers are. I think the peakiness of the chart is skewing the absolute #s.
2) Ask if they can apply a smoothing factor of 2 to 4, then see what the numbers are. I think the peakiness of the chart is skewing the absolute #s.
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CLK500/Range Rover HSE/E55 AMG/Bmw 328Xi coupe/BMW 4.8x/Bmw 335i/GS350/Audi S5/E350
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I think smoothing out the peaks will make the numbers go down...
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From: Scottsdale, Arizona
2020 S63 Coupe, 2006 Hummer H1 Alpha, 2018 McLaren 720S, 2022 Porsche 911 TurboS, 2022 Tesla Model X
My CLS55 pre-mod dyno (on a Dyno Dynamics) was 372 rwhp. Seems that this is about the norm for cars with the "revised" ECU program addressing the secondary air injection pump problem.
This is also right where the dynos of the 63 cars have been. This is probably not a coincidence, given the nebulous role of the ECU update in fixing a potential emission problem and the timing of the recall with respect to the 63 engine introduction.
Anyway I am more and more pleased with the 478.5rwhp (on same Dyno Dynamics) from my Renntech mods. No doubt some of the 106.5rwhp I gained was related to reversing whatever electronic restraint MB had implemented.
This is also right where the dynos of the 63 cars have been. This is probably not a coincidence, given the nebulous role of the ECU update in fixing a potential emission problem and the timing of the recall with respect to the 63 engine introduction.
Anyway I am more and more pleased with the 478.5rwhp (on same Dyno Dynamics) from my Renntech mods. No doubt some of the 106.5rwhp I gained was related to reversing whatever electronic restraint MB had implemented.
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Green run is my baseline dyno. Yes I know. I have a low powered E55 But what can I do! The blue run is with the sprint booster installed. And the red run is with the sprint booster taken off. I understand that 403 rwhp is low for an K1 E55 BUT I am not dissappointed as my car is MUCH more powerful than stock. I gained almost 50 lbft of torque. I can definately feel the torque through out the power band. I mean the car keeps on pulling and pulling and doesn't stop. My dyno guy said that with the sprint booster the linearity of the throttle past 3/4 felt weird and didn't feel linear.
Baseline dyno- 370 rwhp/410 torque
K1+Sprintbooster - 392 rwhp/464 torque
K1 - 403 rwhp/452 torque
But what can I do! The blue run is with the sprint booster installed. And the red run is with the sprint booster taken off. I understand that 403 rwhp is low for an K1 E55 BUT I am not dissappointed as my car is MUCH more powerful than stock. I gained almost 50 lbft of torque. I can definately feel the torque through out the power band. I mean the car keeps on pulling and pulling and doesn't stop. My dyno guy said that with the sprint booster the linearity of the throttle past 3/4 felt weird and didn't feel linear. Baseline dyno- 370 rwhp/410 torque
K1+Sprintbooster - 392 rwhp/464 torque
K1 - 403 rwhp/452 torque
Call the dyno shop and have them email you plots with CF=STD, smoothing=2, and include A/F ratio curves.
If it were my car, I would go back to the dyno and run again, with the pulls starting at 2500 RPM. I would also repeat the Sprintbooster experiment - there's a 15-20 HP delta from yesterday's dyno pull - you really need to verify if that is real or not.
I would also head for the track and verify the dyno numbers with 1/4-mile trap speeds. With 400 whp you should be in the 113-114 mph range, about 4-5 mph short of where a K1 car should be.
BTW, correcting to SAE standards does not always result in reduced numbers. If the temperature was higher than the SAE standard (77 *F), and/or the barometric pressure was lower than the SAE standard (29.235 in-Hg) on the day of the dyno, the corrected numbers will/can be higher.
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From: Boston
CLK500/Range Rover HSE/E55 AMG/Bmw 328Xi coupe/BMW 4.8x/Bmw 335i/GS350/Audi S5/E350
My CLS55 pre-mod dyno (on a Dyno Dynamics) was 372 rwhp. Seems that this is about the norm for cars with the "revised" ECU program addressing the secondary air injection pump problem.
This is also right where the dynos of the 63 cars have been. This is probably not a coincidence, given the nebulous role of the ECU update in fixing a potential emission problem and the timing of the recall with respect to the 63 engine introduction.
Anyway I am more and more pleased with the 478.5rwhp (on same Dyno Dynamics) from my Renntech mods. No doubt some of the 106.5rwhp I gained was related to reversing whatever electronic restraint MB had implemented.
This is also right where the dynos of the 63 cars have been. This is probably not a coincidence, given the nebulous role of the ECU update in fixing a potential emission problem and the timing of the recall with respect to the 63 engine introduction.
Anyway I am more and more pleased with the 478.5rwhp (on same Dyno Dynamics) from my Renntech mods. No doubt some of the 106.5rwhp I gained was related to reversing whatever electronic restraint MB had implemented.
I was hoping that the Kleeman ECU remapping would solve that whole ECU issue but it didn't. Again I am please with my new found power. Like I said before, it pulls and pulls and seems like it doesn't stop pulling.... either way, I think I am going to find a new dyno guy. Just to see if they corrilate in numbers...
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
You think she pulls now, wait til you slap on K2, 3 &4.
It goes from "pulls" (K1), to "Amazing!!"(K2), to "Son of a b-itch!!!" (K3) to "MOMMMYYYYYY!!!" (K4)
It goes from "pulls" (K1), to "Amazing!!"(K2), to "Son of a b-itch!!!" (K3) to "MOMMMYYYYYY!!!" (K4)
Out Of Control!!
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From: Boston, MA
00 MB ML55, 91 Toyota Supra Turbo(sold), 06 E500(gone), 03 BMW M3
I got a ride in a K2 SL55... that seems about right for a car... I mean a good starting point for power for EVERY car, lol
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CLK500/Range Rover HSE/E55 AMG/Bmw 328Xi coupe/BMW 4.8x/Bmw 335i/GS350/Audi S5/E350
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It's sort of strange that the new power blue line shows the same characteristics in the curve as the stock green line. Also at exactly 5.75k rpm the blue and green line coincide with each other, which means you are making the same power, but after that point the blue line takes off again.
Something is not right there....the power should be increased all the way from beginning to end over the green line, and I do agree the power drops off way too soon and too steep. Maybe the car isn't exactly in the dyno mode where traction control is still taking over.
Wayne
Something is not right there....the power should be increased all the way from beginning to end over the green line, and I do agree the power drops off way too soon and too steep. Maybe the car isn't exactly in the dyno mode where traction control is still taking over.
Wayne
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From: Boston
CLK500/Range Rover HSE/E55 AMG/Bmw 328Xi coupe/BMW 4.8x/Bmw 335i/GS350/Audi S5/E350
It's sort of strange that the new power blue line shows the same characteristics in the curve as the stock green line. Also at exactly 5.75k rpm the blue and green line coincide with each other, which means you are making the same power, but after that point the blue line takes off again.
Something is not right there....the power should be increased all the way from beginning to end over the green line, and I do agree the power drops off way too soon and too steep. Maybe the car isn't exactly in the dyno mode where traction control is still taking over.
Wayne
Something is not right there....the power should be increased all the way from beginning to end over the green line, and I do agree the power drops off way too soon and too steep. Maybe the car isn't exactly in the dyno mode where traction control is still taking over.
Wayne
