MX-5 Club of W.A. - Dyno Day

[Alf]

Thanks for the graphs Okibi,

Looks like you had as good a day as we did (though we didn't think of snags, DOH!)

A couple of thoughts prompted by your graphs.

1) The 5 speed runs were correctly performed in 4th (1:1), while the 6 speed runs were incorrectly performed in 4th (not 1:1). This makes it hard to compare 5 speed cars with 6 speed cars.

2) Very surprising to that the NC was 13kW down atw when the claimed maximum power at the flywheel is only 3kW (118 NC vs 121 SE). Either the NC is being oversold or the SE was undersold. But then the SE was found to have some 22-28 kW over the standard NB8B atw when the claimed difference atf was about 8kw IIRC (113 NB8B vs 121 SE).

Cheers,
Alf

[Garry]

Someone there has a very sick SP. 108kw! Whats that about?

[Alf]

Someone there has a very sick SP. 108kw! Whats that about?

Not incomparable to the stock SP at the Melbourne Dyno day yesterday: 102 & 102 kw for the stock SE, 106 and 112 for the stock SP. Big difference in torque figures, though.

Cheers,
Alf

[Okibi]

Videos have been added to our site.

http://www.mx5club.com.au/pastevents.php?eitem=2006062400

[Okibi]

I've added Wayne O'Brien's photos

http://www.mx5club.com.au/pastevents.php?eitem=2006062400#Wayne

[Okibi]

I've added photos from Simon Corston

http://www.mx5club.com.au/pastevents.php?eitem=2006062400#Simon

[garbev]

Seen the photos, where's the video ?

[Techno]

Thanks for the graphs Okibi,

2) Very surprising to that the NC was 13kW down atw when the claimed maximum power at the flywheel is only 3kW (118 NC vs 121 SE). Either the NC is being oversold or the SE was undersold. But then the SE was found to have some 22-28 kW over the standard NB8B atw when the claimed difference atf was about 8kw IIRC (113 NB8B vs 121 SE).

Cheers,
Alf

Hi Alf,

Mazda used a measurement called ECE for the 113KW. DIN is around 107.

ECE enables all the pulleys to be discounted. You may recall that they changed the 113 to 107 when the SE was launched.

If you took off the alternator and Power steering then it seems that 107 becomes 113. It might be that the 118 is ECE and returns around 111 DIN.

Rob

[Techno]

A question please.

Did any of the SP's have any mods. ie were they run with the $2.60 Mad SP Mod or were they stock?

[Okibi]

None of them were running the mod.

The 2 with more power were running the K&N Pannel Filter.

[Okibi]

Seen the photos, where's the video ?

http://www.mx5club.com.au/pastevents.php?eitem=2006062400

See where it says "Download .wmv Video File" click on that.

ie. your ute is ..
http://www.mx5club.com.au/Video/Dyno_June_06/Gary_Wotzko.wmv

[garbev]

Thanks dave didn't have my glasses on it looked like an orange line.

[Okibi]

must be gettin' old

[Alf]

must be gettin' old

Lucky the rest of us aren't, eh?

Cheers,
Alf

[garbev]

I am not old I just like safari suits and bermuda socks.