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   Well done Ben for organising an interesting morning.
My Car was slightly down on expectations but it would seem BMW are very optimistic on their figures, it would have been nice to get a bit closer to their quoted bhp.
I will put some pics up on my web site, when i get time. 

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Z3_Tony Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member II Joined: 04-April-2004 Location: United Kingdom Status: Offline Points: 164	Posted: 27-June-2005 at 01:43
	Well done Ben for organising an interesting morning. My Car was slightly down on expectations but it would seem BMW are very optimistic on their figures, it would have been nice to get a bit closer to their quoted bhp. I will put some pics up on my web site, when i get time.
	Committee member South East Region. Z Register Events organiser

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siwilson Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Groupie Joined: 12-June-2004 Location: United Kingdom Status: Offline Points: 46	Posted: 27-June-2005 at 07:30
	Totally agree, well done Ben for your perseverance as much as anything. I was also down on power, but then again I am not so sure it was that bad. I measured 255-260 at the wheels. On the day someone said a 23% loss in the drive train. A 23% loss would make it 331 at the flywheel. I am not sure I agree with this 23% figure though. My printout says loss = 30, so if that�s 30BHP then that would make is 285-290 at the flywheel. That�s only 10.5%-12% down on BMWs 'book' measurement of 325, so considering it was 32.5c in there and no ram air effect I am pretty happy. One thing that did interest me though was final RPM. BMW book puts 325BHP at 7600RPM, whereas my 285-260 reading was at 6700. Any ideas? Does the engine produce its highest reading at 6700 and if so why do BMW state 7600 as the measurement, or were we short changed? Anyone get a reading on the limiter? Edited by siwilson

B7TNG Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27-June-2005 Status: Offline Points: 12	Posted: 27-June-2005 at 08:53
	Yeah thanks Ben for inviting me along, it was a great morning. My car was slightly down from BMW's suggested figure, but it gives me something to build on. Also thanks for telling me that this forum existed...

sleeper Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Original and STILL best Joined: 26-March-2004 Location: East Sussex/Kent border Status: Offline Points: 2098	Posted: 28-June-2005 at 10:34
	Hi guys, busy week! expect pics and video soon! 197.3!! Sorry about that I am well 'appy! Thanks for your thanks and sorry you couldn't make it Daz. Welcome to the board Dan, I thought a busy man like you wouldn't have time to get in here... I have researched the web and the figure 'transmission loss' is a percentage. I would think that all RWD bmw's will loose roughly the same power, and especially the Z's as they are using exactly the same config. as in ZF 5 speeders & diff units. maybe someone could email piper as they build these dyno's and can confirm??? Edited by sleeper


Z3_Tony Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member II Joined: 04-April-2004 Location: United Kingdom Status: Offline Points: 164	Posted: 28-June-2005 at 11:26
	Simon I remember looking at your print out after the run and there was a dramatic drop in bhp just after the max revs, also a blip at 5000 revs, mine was a similar curve but without the blip and dramatic drop off, my max came in at 6300 a lot below the bmw rev figure also. I must admit to being more than a little bit peeved that my figures looked more like a 2.8 than an M, 60-70 bhp down seems a lot, just realised thats an escort turbo diesel engine down from manufactures figures
	Committee member South East Region. Z Register Events organiser

siwilson Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Groupie Joined: 12-June-2004 Location: United Kingdom Status: Offline Points: 46	Posted: 28-June-2005 at 15:05
	Take a look at ECIS website. http://www.ecisbmw.com/dyno_res.htm ECIS do cold air induction systems for BMWs, but more interestingly they provide dyno evidence of the difference between theirs and stock. Based on this, I think the results we all saw on Saturday were pretty good.

Z3_Tony Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member II Joined: 04-April-2004 Location: United Kingdom Status: Offline Points: 164	Posted: 29-June-2005 at 01:47
	interesting site Simon, the M coupe (S52) shows a similer power curve and power reading as mine. It got the same dramatic drop off in power as yours though. The S52 is only rated at 240bhp though by BMW so his figures are in reality a lot closer to BMW than ours are.
	Committee member South East Region. Z Register Events organiser

bmwian Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 30-January-2005 Location: Caterham Status: Offline Points: 56	Posted: 30-June-2005 at 15:19
	Great to meet all you BMW anoraks. Super rolling road outing, and good to have confirmation of the power of my E30 M3 (EGO). Thanks Ben. What have you in store for us next, I wonder!!!!!!!!!!

sleeper Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Original and STILL best Joined: 26-March-2004 Location: East Sussex/Kent border Status: Offline Points: 2098	Posted: 01-July-2005 at 09:19
	Hi Ian, good to read you in here! thanks for the email. Regarding sending stuff to you by email, do you have another account (non-AOL/hotmail) etc. that will accept bigger files? Ditto everyone else with webmail. If so could you PM me and I'll set up a distribution list (BCC'd of course!)


bmwian Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 30-January-2005 Location: Caterham Status: Offline Points: 56	Posted: 01-July-2005 at 11:49
	Hi Ben Give me a suggestion for another account and I'll see what I can do

BM3K Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member II S50 ZM Coupe Joined: 13-June-2004 Location: SE London Status: Offline Points: 224	Posted: 03-July-2005 at 05:15
	Hi Ian...was good to meet ya the other day!! Ben I only have Hotmail or Yahoo email accounts How big are the files? Can they be zipped up and email'd?? Whats BCC'd? Edited by BM3K
	"Signatures may contain 1 or more images placed horizontally up to a max total height 150px, max total width 600px, max total size 25k." 1991 Macau converts has gone Now I've got a ZM Coupe

B7TNG Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27-June-2005 Status: Offline Points: 12	Posted: 03-July-2005 at 11:24
	Ben, You know my work email address - just send stuff to that, there shouldn't be a problem with file size limits. Cheers...

Rags Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member II Joined: 02-March-2004 Location: United Kingdom Status: Offline Points: 943	Posted: 08-July-2005 at 16:42
	Very good day out, thanks for organising it Ben. can you send the vids of choice to rr301@imperial.ac.uk Rags


sleeper Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Original and STILL best Joined: 26-March-2004 Location: East Sussex/Kent border Status: Offline Points: 2098	Posted: 15-July-2005 at 10:02
	Guys - finally got the article done, bar one thing: can anyone remember the correction factor for the M roadsters?? thanks. I will address the videos over the weekend... I hear that B7TNG is something of an expert....


B7TNG Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27-June-2005 Status: Offline Points: 12	Posted: 15-July-2005 at 10:28
	Looks like you've been bored at work making new footer images for yourself!! I hadn't noticed before that you'd put the M style front bumper on - looks good... If you let me have the tape from the video camera (if it's not a mini DV tape then you'll need to let me borrow the camera too) then I can dump it directly onto DVD, which I can make copies of and we can send out to everyone.

sleeper Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Original and STILL best Joined: 26-March-2004 Location: East Sussex/Kent border Status: Offline Points: 2098	Posted: 15-July-2005 at 10:32
	Good god! he does post... seen ya cruising around on here earlier. fantastic on the DVD front! 'tis Mini DV though, can have the player no probs... where are you this weekend??


sleeper Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Original and STILL best Joined: 26-March-2004 Location: East Sussex/Kent border Status: Offline Points: 2098	Posted: 15-July-2005 at 10:39
	Looks like you've been bored at work making new footer images for yourself!! behold il photoshop maestro!! I hadn't noticed before that you'd put the M style front bumper on - looks good... Thanks mate, by product of 'wrapping' the car!


B7TNG Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27-June-2005 Status: Offline Points: 12	Posted: 15-July-2005 at 10:53
	I have been known to post on occasion. Mini DV is actually fine for me 'cause I've got a mini DV cam myself. I will be around E.G. for the weekend, so maybe me and my family could pop in and see you and your family - I've not really seen much of young little miss...

sleeper Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Original and STILL best Joined: 26-March-2004 Location: East Sussex/Kent border Status: Offline Points: 2098	Posted: 15-July-2005 at 10:55
	yeah, feel free. Shall I get the girls talking? Maybe we could 'do lunch'?


B7TNG Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27-June-2005 Status: Offline Points: 12	Posted: 15-July-2005 at 11:05
	I've put Katie on the case. She'll speak to your Mrs and sort something. Probably safer than us blokes arranging something, 'cause we'll be in trouble if we get it wrong!