. 
Click on the images for larger versions
Only minor mods so far: Mazdaspeed (AEM) cold air intake, custom midpipe, Trust exhaust.
Will be interesting to compare these after the more serious mods have begun...
Matt's NC2
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zombie
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Matt's NC2
. Click on the images for larger versions
Only minor mods so far: Mazdaspeed (AEM) cold air intake, custom midpipe, Trust exhaust.
Will be interesting to compare these after the more serious mods have begun...
Previous MX-5s:
Innocent Blue NB8A 10th Anniversary Edition
Stormy Blue NC2 Cosworth Edition
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CoffeeBoss
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Matt's NC2
Yes indeed. Will be interesting to see what these further plans are, too 
Don't suppose you did a stock baseline run prior to the current mods? (No, neither did I).
Don't suppose you did a stock baseline run prior to the current mods? (No, neither did I).
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Charlie Brown
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Matt's NC2
CoffeeBoss wrote:Yes indeed. Will be interesting to see what these further plans are, too
Don't suppose you did a stock baseline run prior to the current mods? (No, neither did I).
I did.
Went from 91.6 to 105rwkW.
EDIT: Matt, I'm confused about the first graph.
kW's are fine but the torque only shows approx. 150Nm. Am I reading this right?
My graph (admittedly with the mods) shows 286Nm. Our fuel maps are similar.
Last edited by Charlie Brown on Mon Apr 19, 2010 5:03 pm, edited 2 times in total.
Wakefield 1:09.13 Eastern Creek GP 1:50.198 Ext 2:17.538 Sth 1:02.9003
Phillip Is 1:58.50 Winton Short 1:10.7 Lakeside 1:05.7711 MDTC 45.20
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broady
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Matt's NC2
Nice baseline figure Matt. I'm keen to see where that figure will go
人馬一体 NA8
Tein SS, Torsen T2, BD, Maxim Works→RS*R, ARC, Koyo, SSR, Sparco, Flyin' Miata & bling!
6/5/2010
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Caffeine
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Matt's NC2
Charlie Brown wrote:kW's are fine but the torque only shows approx. 150Nm. Am I reading this right?
My graph (admittedly with the mods) shows 286Nm. Our fuel maps are similar.
Different gears? Gear ratio affects torque readings (although the shape of the curve shouldn't change)
Supreme Blue NB8B, 1:16.98 at Wakefield when stock, but it's not stock any more...
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zombie
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Matt's NC2
Charlie Brown wrote:EDIT: Matt, I'm confused about the first graph.
kW's are fine but the torque only shows approx. 150Nm. Am I reading this right?
My graph (admittedly with the mods) shows 286Nm. Our fuel maps are similar.
Hi Charlie
I was very confused about your graphs too
I suspect a mathematical error somewhere. I'm sure a mathematician (or engineer) will correct me on the below, but...
Power (W) = Torque (Nm) * angular velocity (radians/sec)
therefore Power (W) = Torque (Nm) * 2 x pi x RPM/60
as such, Power (kW) = Torque (Nm) x pi x RPM / 30000
Take the value at 5000 rpm - Power (kw) = 150 * 5000 * 3.14159265 /30000 = 78.5kW - which is pretty close to the value on my graph.
- Matt
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zombie
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Re: Matt's NC2
The day has come!
Looks like it's around a 60% increase over stock, and look at how smooth that torque curve is!
No idea what units the torque is measured in - it's not lb/ft nor lb/in - but other than the stumble around 3500rpm it is nice and flat - and a nice progressive power curve
More tuning to be done, but I am well impressed with the result.
Looks like it's around a 60% increase over stock, and look at how smooth that torque curve is!
No idea what units the torque is measured in - it's not lb/ft nor lb/in - but other than the stumble around 3500rpm it is nice and flat - and a nice progressive power curve
More tuning to be done, but I am well impressed with the result.
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broady
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Re: Matt's NC2
Fark yeah! Nice figure and graph Matt
人馬一体 NA8
Tein SS, Torsen T2, BD, Maxim Works→RS*R, ARC, Koyo, SSR, Sparco, Flyin' Miata & bling!
6/5/2010
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zombie
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Re: Matt's NC2
Just out of interest I used the above formulas to convert hp to torque in Nm (converting to kW first by multiplying with 0.745)
153hp @ 4500rpm = 242Nm
177hp @ 5500rpm = 229Nm
201hp @ 6900rpm = 207Nm
comparing with my previous graph it looks like a 60% increase across the board. It's like driving with a 3.2L engine
153hp @ 4500rpm = 242Nm
177hp @ 5500rpm = 229Nm
201hp @ 6900rpm = 207Nm
comparing with my previous graph it looks like a 60% increase across the board. It's like driving with a 3.2L engine
Previous MX-5s:
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Stormy Blue NC2 Cosworth Edition
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