PROJECT ND: Parts Development, Testing, Measurements, DYNO

Miata Parts, Intakes, Superchargers, Headers, Exhausts, Shocks, Springs, Sway Bars, Brake Kits, Autocross and track mods.
Brian
Site Admin
Posts: 11308
Joined: Tue Feb 15, 2005 11:44 am
Location: San Diego CA
Contact:

Re: ND Development, Testing, Measurements Thread...

Post by Brian »

Rough day of autocross testing of new coilovers today, sometimes two steps forward and one setup back! Today the first valving choice on FEAL coilovers had us understeering into turns and oversteering out of the turns, the worst combo. The new power felt FANTASTIC...but we could not use it today.

We will send these back to FEAL and keep working with them on it until it gets right. In the meantime, for next event will look forward to having our OHLINS back in our Race ND, they were magic at the last few events. To push the test envelope on the Ohlins will likely test the upper limit of rates they can control with current valving, thinking 11/6 or 12/6. Stay tuned!
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Brian
Site Admin
Posts: 11308
Joined: Tue Feb 15, 2005 11:44 am
Location: San Diego CA
Contact:

Re: ND Development, Testing, Measurements Thread...

Post by Brian »

Stock ND Mazda Header.
ND=header.jpg
Factory Service Manual Page for Removal of Stock Header
HeaderNDInstall.jpg
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
morrisg
Posts: 128
Joined: Mon Nov 15, 2010 12:02 am

Re: ND Development, Testing, Measurements Thread...

Post by morrisg »

Brian wrote:Rough day of autocross testing of new coilovers today, sometimes two steps forward and one setup back! Today the first valving choice on FEAL coilovers had us understeering into turns and oversteering out of the turns, the worst combo. The new power felt FANTASTIC...but we could not use it today.

We will send these back to FEAL and keep working with them on it until it gets right. In the meantime, for next event will look forward to having our OHLINS back in our Race ND, they were magic at the last few events. To push the test envelope on the Ohlins will likely test the upper limit of rates they can control with current valving, thinking 11/6 or 12/6. Stay tuned!
Gee, that's a big difference in rates front to rear. Sure you don't want to try an 11/8 or is this just to check the valving on the fronts? Looking forward to hearing how the Ohlins do. I assume this is the race valving you're working on, not the street valving.

Thanks!
Brian
Site Admin
Posts: 11308
Joined: Tue Feb 15, 2005 11:44 am
Location: San Diego CA
Contact:

Re: ND Development, Testing, Measurements Thread...

Post by Brian »

That's the similar sort of front to rear split the Global Cup Cars are using, so we want to try it.
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Sean @ GWR
Posts: 79
Joined: Wed Oct 22, 2014 12:55 pm

Re: ND Development, Testing, Measurements Thread...

Post by Sean @ GWR »

More ND Progress Sway Bars have arrived!
Attachments
Progress_ND_Front_Sway.jpg
Progress_ND_Sway_Combo.jpg
ND_Progress Pallet.jpg
dmicah
Posts: 35
Joined: Wed Aug 15, 2012 12:02 pm
Location: Seattle

Re: ND Development, Testing, Measurements Thread...

Post by dmicah »

Brian wrote:Stock ND Mazda Header.
Image
This doesn't look to be as awful an engineering job as the NC OEM header, do you agree?
Brian
Site Admin
Posts: 11308
Joined: Tue Feb 15, 2005 11:44 am
Location: San Diego CA
Contact:

Re: ND Development, Testing, Measurements Thread...

Post by Brian »

dmicah wrote:
Brian wrote:Stock ND Mazda Header.
Image
This doesn't look to be as awful an engineering job as the NC OEM header, do you agree?
YES, a few pages I back I wrote that indeed the ND header is MANY times better than the NC header. The NC header had primaries about half as long as we see here and pinched severely at entry to the converter, whereas here with ND they got some length and they use oval section tube to smooth transition into the cat. In many ways what they did on ND looks more like our Street header for NC, pictured below with converter pushed about as far down to lower flange as possible to keep some decent primary length. For these reasons, we don't see much point in us doing a catted street header for ND like we did for NC, will just do our Max Power header without cat.

Image
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Ryan @ GWR
Posts: 497
Joined: Fri Oct 17, 2014 11:37 pm

Re: ND Development, Testing, Measurements Thread...

Post by Ryan @ GWR »

Those with a keen eye have asked about the brackets shown included with the ND Progress sway bar combo.

The ND's front sway bar bracket is sufficiently strong to handle the additional loads of the stiffer Progress sway bar. However, the ND's rear sway bar mounts are a different story. Much like the NA/NB's front sway bar mounts which hovered over the frame rail and so often ripped when you put stiffer sway bars on the car, the ND's rear sway bar bracket hovers off the rear subframe with a thin steel mount that is unsupported on one side.

Included with the Progress rear sway bar is an additional bracket that boxes in this area and reinforces that weak design.

Here are two photos of the factory rear sway bar mount with the sway bar dropped out of the way for a better view. Notice that the mount is entirely unsupported on the outer side:
IMG_1572.JPG
IMG_1574.JPG
Here with the additional Progress bracket attached and the sway bar reinstalled, you can easily see how the additional brace creates a box for far more strength:
IMG_1577.JPG
IMG_1578.JPG
Ryan @ GWR
Posts: 497
Joined: Fri Oct 17, 2014 11:37 pm

Re: ND Development, Testing, Measurements Thread...

Post by Ryan @ GWR »

ND with Automatic transmission fitment notes for the RoadsterSport midpipe and muffler install.

Much like the NC, there is a little bit of trimming to be done with the auto for the midpipe to clear. In this case, it is just one small tab on a heat shield on the transmission. Here you can see the midpipe almost contacting that shield at one point:
ND_RSMidpipe_AutoTrans_1.jpg
View of that shield with the midpipe out of the way, and the spot where they contact circled in red:
ND_RSMidpipe_AutoTrans_3.jpg
That shield unbolts from the transmission and this flap gets cut off:
ND_RSMidpipe_AutoTrans_2.jpg
Brian
Site Admin
Posts: 11308
Joined: Tue Feb 15, 2005 11:44 am
Location: San Diego CA
Contact:

Re: ND Development, Testing, Measurements Thread...

Post by Brian »

Before and after numbers for our flowed skyactiv 2.0 head.

Big gains in flow, over 40% in some areas.

How that translates on the car we won't know for a few weeks.

In the meantime more dyno work with headers before we get to installing the head, hopefully in June or July.
Skyactiv-Head-Flowed.jpg
Skyactiv-Head-Flowed.jpg (245.25 KiB) Viewed 11680 times
Interesting comparison, below is our Project Blue with 2.5 and here are the numbers on the flowed NC 2.5 MZR head.
FlowedHead2.5.jpg
Later edit to this post, eventually tested this highflow head with Edelbrock supercharger...gains significant at the top end. Don't want to give away the exact numbers, but enough to keep us working and experimenting with the highflow heads.
Headflow.jpg
Headflow.jpg (47.59 KiB) Viewed 4877 times
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Post Reply