W211 540 Rwhp
#1
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From: Melbourne, Australia
E55, F550, S600 Ducati 999
W211 540 Rwhp
Just finished work on the E55 power upgrades.
The upgrade consists of pulley and ECU, cooling system, extra radiator and pump all of which I have previously posted details on. The header testing was completed today and the results are in. Headers are 4 into 1, with 1 3/4" primaries with a 3" collector. The front pipes have to be cut 10mm before the cat and a mounting flange welded on.
Power before the addition of headers was 359kw (480hp), now upto 403kw (540hp), on the Dyno Dynamics dyno. I'll be doing more testing this week and post final results.
The upgrade consists of pulley and ECU, cooling system, extra radiator and pump all of which I have previously posted details on. The header testing was completed today and the results are in. Headers are 4 into 1, with 1 3/4" primaries with a 3" collector. The front pipes have to be cut 10mm before the cat and a mounting flange welded on.
Power before the addition of headers was 359kw (480hp), now upto 403kw (540hp), on the Dyno Dynamics dyno. I'll be doing more testing this week and post final results.
#2
Re: W211 540 Rwhp
Originally posted by stephens
Just finished work on the E55 power upgrades.
The upgrade consists of pulley and ECU, cooling system, extra radiator and pump all of which I have previously posted details on. The header testing was completed today and the results are in. Headers are 4 into 1, with 1 3/4" primaries with a 3" collector. The front pipes have to be cut 10mm before the cat and a mounting flange welded on.
Power before the addition of headers was 359kw (480hp), now upto 403kw (540hp), on the Dyno Dynamics dyno. I'll be doing more testing this week and post final results.
Just finished work on the E55 power upgrades.
The upgrade consists of pulley and ECU, cooling system, extra radiator and pump all of which I have previously posted details on. The header testing was completed today and the results are in. Headers are 4 into 1, with 1 3/4" primaries with a 3" collector. The front pipes have to be cut 10mm before the cat and a mounting flange welded on.
Power before the addition of headers was 359kw (480hp), now upto 403kw (540hp), on the Dyno Dynamics dyno. I'll be doing more testing this week and post final results.
-Sun-
Last edited by BenzoBoi; 06-21-2004 at 03:54 PM.
#6
So, the headers made the biggest difference? Stephens, you still da man! And to think, this all started with a snorkel tube mod.
Last edited by Dr Chill; 06-21-2004 at 11:29 PM.
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#9
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Originally posted by Dr Chill
So, the headers made the biggest difference? Stephens, you still da man! And to think, this all started with a snorkel tube mod.
So, the headers made the biggest difference? Stephens, you still da man! And to think, this all started with a snorkel tube mod.
#10
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Originally posted by Peter B
so is that approx. 625-650hp at the crank??? assuming 14-17% driveline losses, 540/.17?????
so is that approx. 625-650hp at the crank??? assuming 14-17% driveline losses, 540/.17?????
#12
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I have a dyno for my car with 438kw(587hp), but this includes more boost than in the standard kit, so I didn't want to use it as an example of what you should expect.
#16
Wow...what a difference the headers make!!! Do you think headers alone will increase the same amount of power to the wheels without all of your other upgrades? I wonder what your 1/4 mi times are now?
#18
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BMW M5, Porsche 911, Mercedes-Benz E55
That's something like 587 bhp!!!! I assume this is with the headers, software, second charge coolant recovery radiator mounted in parallel, etc. How much boost is it making at this power level? I look forward to seeing the results of your forthcoming dyno tests this weekend where you are going to measure RWHP at stock boost pressure and stock ECU settings in combination with all of the other above mods. It'd also be curious to see what the RWHP would be with all of the above mods, but with stock boost pressure combined with your ECU remapping.
By the way, the lower curve shows 350 kW. What mods were done to the car to produce that (lower) power level?
By the way, the lower curve shows 350 kW. What mods were done to the car to produce that (lower) power level?
Originally posted by stephens
Latest dyno from my car, comparing pre header and further boost upgrade.
Latest dyno from my car, comparing pre header and further boost upgrade.
#19
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No headers, cooling upgrade, 14.7psi boost upgrade, ECU upgrade 350-360kw depending on dyno.
Headers, cooling upgrade, 15.5psi boost upgrade, ECU gives you the 430kw.
Headers, cooling upgrade, 15.5psi boost upgrade, ECU gives you the 430kw.
#23
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Yes now that I'm a sponsor I can tell you more.
The upgrade consists of four components
1. Pulley upgrade, which consists of a new crankshaft and water pump pulley complte with longer belt, which increases boost pressure to 14.7psi.
2. Cooling upgrade, consists of additional low temp radiator, replacement powersteering cooler, hoses and additional water pump.
3. Headers
4. Upgraded ECU software.
The price of the complete kit, without ECU software is $8000USD plus freight of around $300. The components can also be purchased separately. I will post some better pics and details next week.
You can email me for further details at stephen@europerformance.com.au
The upgrade consists of four components
1. Pulley upgrade, which consists of a new crankshaft and water pump pulley complte with longer belt, which increases boost pressure to 14.7psi.
2. Cooling upgrade, consists of additional low temp radiator, replacement powersteering cooler, hoses and additional water pump.
3. Headers
4. Upgraded ECU software.
The price of the complete kit, without ECU software is $8000USD plus freight of around $300. The components can also be purchased separately. I will post some better pics and details next week.
You can email me for further details at stephen@europerformance.com.au
Last edited by stephens; 07-07-2004 at 09:17 AM.
#24
This is an awesome amount of power you have developed!! However, I am skeptical that a .8# increase in boost could result in a difference of 90kw. With or without headers, it is hard to imagine that could be possible. I would be more inclined to believe that the A/F ratio was way off in the 350kw dyno versus the 440kw one. Did you measure any wideband pre-cat AFR's?
#25
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Originally Posted by eclou
This is an awesome amount of power you have developed!! However, I am skeptical that a .8# increase in boost could result in a difference of 90kw. With or without headers, it is hard to imagine that could be possible. I would be more inclined to believe that the A/F ratio was way off in the 350kw dyno versus the 440kw one. Did you measure any wideband pre-cat AFR's?
AFR's stay within 12.5-11.5 to 1 range independent of boost and headers.