Dinan Stroker exhaust and Saturday drive video
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Probably a little optimistic, but quoted from my installer based on also having the midsection, 13% underdrive pulley, and decatted headers. More likely around 650 at the crank, but 680 is conceivable in colder weather.
Welcome to the board! I hope to see more videos. Here is a good subforum to add some of your other vids: GTBoard.com: General Sportscars - The Unofficial BMW M5 Messageboard (m5board.com)
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I saw your vids posted by babystat on Luxury4Play. What a wicked sounding sleeper! 
I was questioning the 680hp as well since Dinan quotes 628 with everything including pulley and mid section so I didn't think you can get 52hp from the headers but nonetheless, that car will kick a lot of supercar asses whatever the true number is. hahaha
I was questioning the 680hp as well since Dinan quotes 628 with everything including pulley and mid section so I didn't think you can get 52hp from the headers but nonetheless, that car will kick a lot of supercar asses whatever the true number is. hahaha
I have the 4" resonators.
No dyno but Darren_Dallas' stroker dyno'd at around 550 RWHP. Apparently the dyno results for our V10's typically underestimate the true RWHP due to the high air flow requirements. One of my gauges for power gains has been my Performance Box 0-60 MPH times. When I had the exhaust, software, TB's, and airboxes my best 0-60 was 4.3 seconds. With the stroker best time is 3.8 seconds (with lots of wheelspin).
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I was there with Darren when his car was dynoed at Dinan's facility in Morgan Hill on their Maha Dyno. IIRC, he had all the same additional mods as your car except he had Supersprint headers, not modified stock units. As for the air flow, you can't get a stronger fan than what Dinan has which probably comes the closest to replicating real world wind speeds.
Let's just say from MY experience........it's rated at: Fast as HellRWHP
550, 680, the world may never know, but at the end of the day that thing MOVES!:M5launch: To think you can take you kids to school (I won't be), hit up Starbucks, do 150mph on the highway to work and be 5 minutes early is ridiculous. E60 M5 RULES!!!!! :thumbsup: Vent over........:S
Thanks, my sapphire black M5 is starting to blush and looking more like Indy red. Coming from someone who has had seat time in virtually every modern exotic, that is saying a lot. :cheers:
And I have seen the actual video from Dinan of Darren's dyno. My point was that in general most dynos underestimate the true RWHP of the E60 M5, but I agree that Dinan's high speed fan most likely renders a more accurate reading. Unfortunately I don't have access to that here in Atlanta.
Case in point. Here is a video of a CTS-V versus a Dinan stroker, and both cars dyno about the same: http://www.youtube.com/watch?v=5dI9K6S7bOU
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Don't get me wrong. I was not challenging your comments or the power of the stroker; just stating my experience. I actually raced Darren after he picked up his car from Dinan that day. Back then, my car had full RDSport bolt-ons (headers, race cats, xpipe, competition exhaust, pulley, tune) and RPI scoops/BMC filters. Of course, all I saw was a lot of dust as Darren pulled about 10 cars on me at around 150mph. He posted a thread about it on here too. haha
I've also seen that race against the CTS-V. You probably know but that's also Darren's car.
I've also seen that race against the CTS-V. You probably know but that's also Darren's car.
Ah, yes, Darren's car indeed. I really miss not having him and his Texas videos on the board. Hope he is doing well.
Unfortunately the videos have been removed, but here is a thread discussing Dinan stroker and CTS-V dyno results with paradoxical results on the road: http://www.m5board.com/vbulletin/e6...an-stroker-m5-versus-2009-cadillac-cts-v.html
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