miataturbo.net-like debauchery thread (about the ND or something)
07-27-2015, 12:56 PM
#1383
Brian just got back from the local dyno with the shop ND.
Also compared to a stock NC.
Originally Posted by Brian
First ND Dynos Today!
WE had a prototype RoadsterSport exhaust on our ND so we started with runs of it and then changed to stock exhaust to see how the ND responds to having more flow. The good news is that ND does respond to having more flow, this is the most conservative of our exhaust prototypes we are currently working on and still got gains from start to finish, including peak torque gains moving up from 136 to 139 FtLbs and peak hp up from 142 with stock muffler to 145 with the highflow muffler. Best torque gain is 5+ Ftlbs torque in the midrange right where most folks are driving. Lots more testing to come.
I will add that the car is more temp sensitive with the stock muffler back pressure, this was by far the best stock run shown here, it was more consistent with the higher flowing muffler.
WE had a prototype RoadsterSport exhaust on our ND so we started with runs of it and then changed to stock exhaust to see how the ND responds to having more flow. The good news is that ND does respond to having more flow, this is the most conservative of our exhaust prototypes we are currently working on and still got gains from start to finish, including peak torque gains moving up from 136 to 139 FtLbs and peak hp up from 142 with stock muffler to 145 with the highflow muffler. Best torque gain is 5+ Ftlbs torque in the midrange right where most folks are driving. Lots more testing to come.
I will add that the car is more temp sensitive with the stock muffler back pressure, this was by far the best stock run shown here, it was more consistent with the higher flowing muffler.
Originally Posted by Brian
OUR FIRST ND DYNO...vs NC.
GOOD NEWS HERE!
Precisely what Mazda has been telling us.....yes 5hp less peak at the wheels than our 2012 was stock but MUCH STRONGER torque spread.
Well done Mazda...the better torque is awesome!
And notice ND is stronger for hp from idle until about 6000rpms!
GOOD NEWS HERE!
Precisely what Mazda has been telling us.....yes 5hp less peak at the wheels than our 2012 was stock but MUCH STRONGER torque spread.
Well done Mazda...the better torque is awesome!
And notice ND is stronger for hp from idle until about 6000rpms!
Reply
0
0
07-27-2015, 01:22 PM
#1388
I wasn't gonna comment on the exhaust "gains" but I'm glad you did 
But really, you gotta cut them some slack: the modifications have to start somewhere. Or would you prefer the aftermarket wait til 20 years from now to finally start making progress on the ND like we had with the na/nb?
But really, you gotta cut them some slack: the modifications have to start somewhere. Or would you prefer the aftermarket wait til 20 years from now to finally start making progress on the ND like we had with the na/nb?
Reply
0
0
07-27-2015, 01:52 PM
#1389
Supporting Vendor
iTrader: (1)
Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,953
Total Cats: 1,006
If you're putting an exhaust on most any new sports car just for HP gains, you're doing it wrong.
<br />
<br />Combination of sound, looks, weight, and a bit of power is plenty for most people. I'll be putting an exhaust on the s2k simply because the stock one is too quiet. I expect many will do the same with the ND.
<br />
<br />Combination of sound, looks, weight, and a bit of power is plenty for most people. I'll be putting an exhaust on the s2k simply because the stock one is too quiet. I expect many will do the same with the ND.
Reply
0
0
07-27-2015, 05:14 PM
#1395
KW's Dyno Dynamics was a bit stingy. That's what has my attention. This thing might actually be making 142whp on a Dynojet. If so, it explains that 5.8s 0-60mph on stock tires. We're just around the corner from getting ours. We already have a pile of parts to test on it.
__________________
Reply
0
0
07-27-2015, 05:23 PM
#1398
KW's Dyno Dynamics was a bit stingy. That's what has my attention. This thing might actually be making 142whp on a Dynojet. If so, it explains that 5.8s 0-60mph on stock tires. We're just around the corner from getting ours. We already have a pile of parts to test on it.
I've been meaning to do a back to back with my car on the Dynojet I use and this one. However, in my experience Dyno Dynamics typically report on the low end compared to Dynojets. Confirmed with Brian we are going to put it on the local dynojet as well.
Brian also provided some more overlays comparing the NC with a header to the ND (he has years of NC data on this dyno).
Originally Posted by Brian
And now what happens if ND runs against NC with headers? Here is the overlay!
Green Line is 2006 with RoadsterSport Max Power Header, RoadsterSport Midpipe and RoadsterSport Q exhaust.
Red Line is 2016 STOCK
BLUE LINE is Project 2012 PRHT with our full Roadstersport Ceramic Coated STREET catted header and RoadsterSport Midpipe and RoadsterSport Q exhaust.
Analysis: stock ND does indeed run neck and neck for torque with NC when we give the NC our catted header that looks very much like what Mazda has now added to the ND. We should underscore that our NC with catted header in these results ALSO has full 2.5 inch exhaust back from the header back, while the ND is stuck pushing through stock small midpipe and muffler in this comparison... so not yet a fair comparison of ND vs. NC with similar exhaust configurations. And we also see that if we go catless on the NC with our RoadsterSport Max Power header then that is quite a bit more powerful than ND with stock exhaust system. Hopefully the ND responds well to catless header so it can re-take the crown here, hope to find out soon!
Green Line is 2006 with RoadsterSport Max Power Header, RoadsterSport Midpipe and RoadsterSport Q exhaust.
Red Line is 2016 STOCK
BLUE LINE is Project 2012 PRHT with our full Roadstersport Ceramic Coated STREET catted header and RoadsterSport Midpipe and RoadsterSport Q exhaust.
Analysis: stock ND does indeed run neck and neck for torque with NC when we give the NC our catted header that looks very much like what Mazda has now added to the ND. We should underscore that our NC with catted header in these results ALSO has full 2.5 inch exhaust back from the header back, while the ND is stuck pushing through stock small midpipe and muffler in this comparison... so not yet a fair comparison of ND vs. NC with similar exhaust configurations. And we also see that if we go catless on the NC with our RoadsterSport Max Power header then that is quite a bit more powerful than ND with stock exhaust system. Hopefully the ND responds well to catless header so it can re-take the crown here, hope to find out soon!
Last edited by Lincoln Logs; 07-27-2015 at 06:45 PM.
Reply
0
0
07-30-2015, 12:03 PM
#1399
Elite Member
Join Date: Oct 2011
Location: OKC, OK
Posts: 3,693
Total Cats: 222
KW's Dyno Dynamics was a bit stingy. That's what has my attention. This thing might actually be making 142whp on a Dynojet. If so, it explains that 5.8s 0-60mph on stock tires. We're just around the corner from getting ours. We already have a pile of parts to test on it.
I suspect with that comp ratio + E85 + ignition/cam tuning, there should be some nice gains to be seen.
Reply
0
0
