The Roadster NA Journey Begins

Magpie · Postby **Magpie** » Sun Nov 19, 2017 7:30 pm

Side by side video of how I wasted the improvement in the car

StillIC wrote:I have been using a factor of $33/kg as a 'must do' decision point

Seems like a good plan.

StillIC · Postby **StillIC** » Mon Nov 20, 2017 7:51 am

By 38 seconds the right video was ahead of the left, but by the end of the lap the left video had caught up. One lap was definitely faster than the other for some portion, and the other was too!

Magpie · Postby **Magpie** » Mon Nov 20, 2017 8:10 am

StillIC wrote:One lap was definitely faster than the other for some portion, and the other was too!

The left was the most recent (November) and the left one in August.

There has been some small changes between the dates to decrease drag. It looks like the changes worked but the driver $#@$ed it up!

T1 exit about the same speed.
T2 was where the most damage was done, I failed to get the drive out and the right screen was almost 7kmh faster. At the apex the left is 4 kmh faster, but by the end of the ripple strip on the exit it is 3 kmh slower. At the gear change 5 kmh slower. Right at the 200m sign 186 left 180

T3 left at turn in 91 whereas right was 81. The data shows much later braking hence picked up time. Achieved much better drive out as well.

The run to T4 on the right I did not change to 5th hence was able to accelerate more. Staying in 4th normally causes me to hit the RPM limit before T4.

T4 the left has more entry speed but lost it on exit to the right lap.

T5 The run to T5 is a pain as I hit the limiter in 3rd and need to make the change to 4th on exit. I have tried short shifting into 4th just before the corner but it does not seem to help my lap time.

T6 in the right lap I braked way too early and again lost time. This also showed on the exit.

Have another session on the National soon so hopefully I will remember my own advice!

Magpie · Postby **Magpie** » Sun Nov 26, 2017 5:18 pm

As asked by Kyle Forster, the rear bumper has been cut down (Beavis style) using a spare (damaged) bumper I had at home. However, the rear garnish fell apart when taking off the bumper

Anybody have one for sale?

If the test works the rear will be made neater and the metal around the rear wheels will be removed.

The car is not very 'pretty' anymore...

lucmor444 · Postby **lucmor444** » Sun Nov 26, 2017 6:17 pm

There’s an NA8 rear garnish for sale on Facebook.

Magpie · Postby **Magpie** » Mon Nov 27, 2017 5:18 am

lucmor444 wrote:There’s an NA8 rear garnish for sale on Facebook.

which group?

lucmor444 · Postby **lucmor444** » Mon Nov 27, 2017 6:34 am

Mazda MX5 parts for sale or swap. But it must have sold as it’s not on there now.

It’s a closed group but just ask to join if you are not already. Otherwise I can keep a eye out for another on on there and let you know.

Magpie · Postby **Magpie** » Mon Nov 27, 2017 7:19 am

Was it this one?
https://www.gumtree.com.au/s-ad/girraween/auto-body-parts/mazda-na-mx5-rear-garnish/1161731871

Magpie · Postby **Magpie** » Mon Nov 27, 2017 8:16 am

I wonder what the other half will say... The comments on the front air dam were "that's ugly" so I wonder what she will say about the 'small' bumper cut

lucmor444 · Postby **lucmor444** » Mon Nov 27, 2017 8:24 am

Magpie wrote:Was it this one?
https://www.gumtree.com.au/s-ad/girraween/auto-body-parts/mazda-na-mx5-rear-garnish/1161731871

Not sure now that I can't find the ad anymore - I think it may be a different one but at least you may have found one (and perhaps likely to drop their price now seeing its been listed for a while?

rascal · Postby **rascal** » Mon Nov 27, 2017 9:23 am

Why have a bumper at all, if you are going to cut it that much? Honest question, wouldn't it have been easier to just remove it completely. Does that little bit left do anything?

Yep, that's one ugly rear end now. :lol:

Its just a shame that what works well for aero doesnt always look pleasing to the eye...

Daffy · Postby **Daffy** » Mon Nov 27, 2017 9:53 am

rascal wrote:..........Yep, that's one ugly rear end now. Its just a shame that what works well for aero doesnt always look pleasing to the eye...

Magpie · Postby **Magpie** » Mon Nov 27, 2017 10:56 am

rascal wrote: Does that little bit left do anything?

It gives a reference point to measure off

The reason for the 'high' cut was the reflectors on the bumper. Maybe the next cut will not be as 'extreme'.

Daffy, not everybody wants a big ass...

Now all I need is a fastback like ▼▼▼▼

Magpie · Postby **Magpie** » Fri Dec 01, 2017 7:17 am

Finally got my hands on some 225/45/15 AR-1-s!!! There are not many left in Brisbane either!

The 205/50/15 AR-1's have been moved to the 7" 6UL's so will have some data on these tyres on 3 different rims sizes.

The 225/45's will be heat cycled on Saturday then put away until possibly the last event this year in a few weeks. The 2 sets of AD08R's I have will remain wrapped in plstic and stored in the shed for the moment...