Dyno Day

dbr · Postby **dbr** » Mon Jun 04, 2012 9:44 am

Does anybody have the results of the Dyno Day held on May 26?

rascal · Postby **rascal** » Mon Jun 04, 2012 11:12 am

B.BEAVIS 160kW AUDI S4 V8
T.McINNES 74 NA6 MODIFIED
D.WILKEN 93 NA8B INTAKE,HEADERS AND CATBACK EXHAUST
G.PRESCOTT 82 NB8A MODIFIED
A.CONRAD 91 NC COMPLETELY STD
G.VELLIS 67 NA6 HEADERS AND EXHAUST
C.RIFFKEN 61 NA6 STOCK
N.HERITAGE 72 NA8 STOCK
C.HEALY 74 NA8 MOD
D.FITZGERALD 61 NA6 MOD
M.FITZGERALD 75 NB8A MOD
B.MARKS 73 NB8B STOCK
N.SAVANAH 99 NB8B "SE" STOCK
M.LLOYD 76 NB8B STOCK
B.SALE 70 NA6 MOD

lightyear · Postby **lightyear** » Mon Jun 04, 2012 1:03 pm

Doesn't take much to break 90rwkw. My car has the crappest exhaust system - double baffled muffler, and dodgy bends. The headers are o.k, they are a chinese copy. I will have to remove the intake to get back under 90rwkw for modified class, and replace it with the restrictive oem intake. (I am running at sandown this weekend, and i will see how much improvement the new intake has made to the lap times. - Would be great to run into the 1:27's...) (fingers crossed for some dry weather)
Intake is a 2.5" to 3" 90* bend with afm and 3" pod filter boxed in to the headlight area.
With a good free flowing straight thru muffler and nice bends, it could be possible to get around the 100rwkw mark.

dbr · Postby **dbr** » Mon Jun 04, 2012 1:37 pm

Thankyou.
I am suprised the SE was so low. Pitty there wasn't an SP or other Turbo to show what is required to get to 120rwkw.
15 entrants is not a bad turn out.
I am disapointed I couldn't go but the dwell reducer circuit had not arrived so I could run the Corrolla coils that fix the missfire that occured when I increased the boost for the dyno day.

Postby **NitroDann** » Mon Jun 04, 2012 1:55 pm

I imagine its a special edition NB, not a mazdaspeed.

Dann

rascal · Postby **rascal** » Mon Jun 04, 2012 2:34 pm

NitroDann wrote:I imagine its a special edition NB, not a mazdaspeed.

Dann

Pretty sure it was the factory SE. Had a hairdryer anyway.

Postby **NitroDann** » Mon Jun 04, 2012 2:34 pm

Something was wrong haha.

Dann

rascal · Postby **rascal** » Mon Jun 04, 2012 2:52 pm

NitroDann wrote:Something was wrong haha.

Dann

they're only officially 121kw at the fly from the factory so 99 atw isnt bad.
Std NB8B is 113kw and 2 put out 73-76 atw on the day so SE 30% higher, when in theory should only be 7%.

hks_kansei · Postby **hks_kansei** » Mon Jun 04, 2012 2:58 pm

M.LLOYD 76 NB8B STOCK

According to redbook:
107kW @ 7000rpm
Therefore, estimated drivetrain loss 28.97%

((76/107)-1)100 = 28.97

N.SAVANAH 99 NB8B "SE" STOCK

121kW @ 6000rpm
Therefore, estimated drivetrain loss 18.18%

((99/121)-1)100 = 18.18

It doesn't seem that out of the way when you consider the normal NB8B was the same gearbox/diff/etc (same diff ratio too?)
So we can assume that all things equal they'd have a similar level of drivetrain loss.

If we do that, the SE seems to be fine.

Postby **NitroDann** » Mon Jun 04, 2012 3:02 pm

Didnt realise they only made 11 odd percent more power at 7psi. :shock:

Dann

hks_kansei · Postby **hks_kansei** » Mon Jun 04, 2012 3:07 pm

It wouldn't surprise me if the SE was intentionally that was because of emissions, sh*t fuel, and the fact that Mazda Japan (at the time) were being quite conservative.

I think the SE was a bit rushed into production anyway?

OT:
Is it possible to get an NB8A to 90/100rwkw on a stock ECU?