miataturbo.net-like debauchery thread (about the ND or something) - Page 70 - Miata Turbo Forum -Boost cars, acquire cats.

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Old 07-26-2015, 11:53 PM   #1381
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You're not fooling anyone. That's clearly Jeffbucc's undercarriage. The diff's been polished. Hahahaha!!

Seriously though, very cool. I'm looking forward to my 2018 model!
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Old 07-27-2015, 12:15 AM   #1382
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After seeing these in person at MATG, I am no longer sold on an ND. I really do not like the interior, or the trunk. The rear end is... I dunno, fat.

I am going to have to test drive one to really make up my mind... But it sure makes me love my NB that much more.
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Old 07-27-2015, 01:56 PM   #1383
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Brian just got back from the local dyno with the shop ND.

Quote:
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.







Also compared to a stock NC.

Quote:
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!




Attached Thumbnails
miataturbo.net-like debauchery thread (about the ND or something)-80-nd_dyno_time_21_e871d5a765f8c4faae3049e31fbfa6163a39e8d9.jpg   miataturbo.net-like debauchery thread (about the ND or something)-80-nd_exhaust_dyno_8b0148e698e5331e56bcc470b67ce66f0ef7d334.jpg   miataturbo.net-like debauchery thread (about the ND or something)-80-nd_vs_nc_60124f2ef6163df829bfa766d839ac7564cee609.jpg  
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Old 07-27-2015, 02:03 PM   #1384
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<p>It seems like only yesterday....</p><p>Nice work Mazda. I like how 155&nbsp;hp at the crank = 142 whp, hehe. A bit conservative, indeed.</p>
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Old 07-27-2015, 02:07 PM   #1385
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I really like that too. Now all the NC owners will feel even worse lol
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Old 07-27-2015, 02:13 PM   #1386
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Quote:
Originally Posted by Lincoln Logs View Post
Brian just got back from the local dyno with the shop ND.

Also compared to a stock NC.
How does this dyno compare to a Dynojet?
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Old 07-27-2015, 02:17 PM   #1387
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and the whole tossing thousands of dollars for 5hp starts all over again.
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Old 07-27-2015, 02:22 PM   #1388
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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?
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Old 07-27-2015, 02:52 PM   #1389
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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.
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Old 07-27-2015, 02:53 PM   #1390
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<p>Straight pipe. #allthegains</p>
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Old 07-27-2015, 03:40 PM   #1391
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Quote:
Originally Posted by Braineack View Post
and the whole tossing thousands of dollars for 5hp starts all over again.
Took you forever. How's your car running?
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Old 07-27-2015, 03:42 PM   #1392
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He's still debating on buying the 1st mod, a downpipe for his wrx.
He'll let you know in 25 years when he decides.

.....Or did you really think that the administrator of a miata site actually.....owns....a....miata?
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Old 07-27-2015, 04:27 PM   #1393
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Quote:
Originally Posted by emilio700 View Post
How does this dyno compare to a Dynojet?
DynoDynamics are typically heartbreakers, depending on corrections.

for example:
stock 2001. Note the classy establishment where it occured.




eggplants to the shop for graphing LB / MPH.
Attached Thumbnails
miataturbo.net-like debauchery thread (about the ND or something)-80-y8s_dyno_stock_dd_daaf8ebc89c985312ceb680c249a7a7c64ace67f.png  
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Old 07-27-2015, 05:44 PM   #1394
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I'm curious how they'll respond to boost on 93 with that high compression engine; I believe it's 13:1. I can't wait to see the first turbo setup. Has there been any speculation as to a prototype FM kit?
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Old 07-27-2015, 06:14 PM   #1395
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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.
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Old 07-27-2015, 06:16 PM   #1396
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I believe the general rule for dyno dynamics, mustang, etc. is to multiply the result by 1.1. In that case, that car is making more to the wheels with an exhaust than Mazda claims it makes at the crank.
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Old 07-27-2015, 06:19 PM   #1397
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There is no general rule anymore. I laugh when people say "heartbreaker mustang", like they all read low accross the board.

If that one does, for sure, then those numbers are quite nice.
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Old 07-27-2015, 06:23 PM   #1398
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Quote:
Originally Posted by emilio700 View Post
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 think the dyno Brian ran the ND seems inline with most Dynojets. A lot of the charts he's gotten from there for NC parts like headers are inline with the Dynojet plots from customers.

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).

Quote:
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!




Attached Thumbnails
miataturbo.net-like debauchery thread (about the ND or something)-80-nd_vs_nc_with_header_b30dbb4c8415cdccf3e680e033b80b87124f9acd.png  

Last edited by Lincoln Logs; 07-27-2015 at 07:45 PM.
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Old 07-30-2015, 01:03 PM   #1399
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Quote:
Originally Posted by emilio700 View Post
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.
Heres to hoping there is enough overhead in the stock fuel system for E85.

I suspect with that comp ratio + E85 + ignition/cam tuning, there should be some nice gains to be seen.
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Old 07-30-2015, 01:08 PM   #1400
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Yeah the high comp engine is going to love the cornjuice
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