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So jealous...brain hurts.... ....I mean, congratulations. :)
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Originally Posted by atl8
(Post 2715922)
The coil dwell is in milliseconds, so 395 is .395ms, which is the stock value across all voltages at 9000. I've seen Scott recommend using values of 3-3.5ms for FI, and how 2.0 is "adequate" for NA applications. But I've never seen the actual ratings for the Mazsport coils posted anywhere.
Regardless, the stock table interpolates the values from highest value top down by battery voltage, and right to left by RPM so I find it unlikely that 3000 or 3500 would be what you'd want to set it to at 9K. so 395 = 3.95ms . Going back to first principles .... at 9000 rpm we have 3000 rpm of the rotor but 3 firings per rev so 9000 firings per min = 1 firing every 6.7ms So the stock dwell of 3.95ms makes sense Also at 1000rpm we have a firing every 60ms and the table is 1800 at 1000rpm . Again 18ms of dwell would make sense there as well . 0.18ms or 1.8ms does not . |
Originally Posted by olddragger
(Post 2713881)
288 is ok at 8.5 and a fair indicator of power. I have at times seen close to 300 at around 8.5-8.7. Not comparing now--it doesnt mean mine is better etc etc.
... OD |
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Getting AFRs pretty well nailed ...
Boost is currently 7.5psi up to about 6000rpm then tapering down to 5.1psi at 8250rpm http://i154.photobucket.com/albums/s...x8/AFRtune.jpg |
Get those numbers up to the 12.3's and you should be happy.
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congrats man, I wish my AFR's were that close!
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Do you think that will give me a few extra horsies ?
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12 to 12.3 will get you more HP. On the edge though.
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You asked for the videos so here goes .
First one is through the gears , not really trying i get 0-160km/hr in 12.7 sec . Would be under 12s if i took it to 9k in third !!!!!! http://www.youtube.com/watch?v=EkiV4sgu65E This one is from when I was still NA , 0-160km/hr in 15.7sec with one less gear change (higher red line) http://www.youtube.com/watch?v=NzlvSC_8N-Y If you have them both open at once and click on the Turbo one after the NA has been running 4sec you will get a good idea of the difference . |
nice!
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Originally Posted by Brettus
(Post 2712346)
I'm seeing 288 g/s MAF at 8500 - what do you see and is this an indication of the power output ?
in my experience in this car G/S is nearly exactly the flywheel HP |
oh and good on ya Brettus:D:
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cheers for that zoom . Dyno is booked for tomorrow afternoon ;)
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Here's one of mine to compare. I was down over 40 whp on the dyno with this configuration.
Code:
Coolant MAF ThrottleO2 Load IAT RPM MPH |
^ That's with the AccessPort btw.
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/\ quite a noticable difference - what PSI were you running ?
A little experiment . The Greddy gives peak power at around 6krpm so I thought I would try some short shifting to see if it is worth going past 7k shift point. http://www.youtube.com/watch?v=9ItRibHBMLc Result 13.0s flat 0-160km/hr . A tad slower but in the same ballpark - interesting . I think i'll shift around 7500 at the track |
olddragger shifts at the same point on the track with the pettit kit.. :)
the fi takes all the shifting out of track days!!! :) beers :beer: |
2 Attachment(s)
OK, here's the dyno run when I was really down on HP. I also data logged and video tapped it.
The MAF and RPM numbers that were logged during the dyno session: Code:
MAF RPMHere is the video footage of the dyno run: http://tyrannical.org/baddyno.wmv You can hear it breaking up.. And finally, here's the dyno chart (I'm also including the raw .csv and .drf): |
317.98 g/s @ 7500 from the first post
vs 344.21 g/s at 7492 in you latest post you're off nearly 30 g/s just between these 2 runs and you say the second post is low as well? |
boost levels are likely different. I was only data logging because the car wasn't running properly. Otherwise I wouldn't have bothered making logs..
I posted the wrong dyno picture earlier, so I've corrected it and included the raw log from the data logger and the dynojet .drf file. |
gotcha
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Originally Posted by mysql
(Post 2722147)
. I guess this is a good example what it looks like with the AP and not setting the dwell on the "upgrade" coils.
So ...... it seems your problem is more likely caused by wrong dwell when you were running the Int x . Stock dwell seems ok . If anyone can shed more light on this i'm all ears . |
That is completely possible.
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Here is the dyno
Red line is without the boost controller. Blue line is with boost set to 8PSI http://i154.photobucket.com/albums/s.../TurboDyno.jpg Impressed with the top end vs the stock Greddy The peak number is OK but not startling 193kw = 259hp |
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