321.24 whp / 305.02 wtq @ 19.5psi
Well, I got a little bit of some disappointing news today. I finally got the car to a Dyno and I was hoping for some better numbers but here they are:
321.24 max power / 305.02 max torque at 19.5psi. My A/F ratio can still be tweaked a bit. I was sitting around 10.6:1 at full boost. The Dyno was having issues picking up the Fab9 COPs spark signal so the RPMs are alittle inaccurate. The bottom graph shows the power compared to MPH vs RPM for reference. The pulls were in 4th gear with a 7800RPM redline. https://www.miataturbo.net/attachmen...ine=1439964025 https://www.miataturbo.net/attachmen...ine=1439964025 |
If the RPM is incorrect by about 1000rpm or so, then the power output is higher.
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Why was it in 4th gear? 5th gear is 1:1
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10.6:1 is leaving a good bit of power on the table.
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is there anything the FAB coils do right?
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Originally Posted by Reverant
(Post 1258260)
If the RPM is incorrect by about 1000rpm or so, then the power output is higher.
Originally Posted by psyber_0ptix
(Post 1258269)
Why was it in 4th gear? 5th gear is 1:1
Originally Posted by aidandj
(Post 1258270)
10.6:1 is leaving a good bit of power on the table.
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Originally Posted by Braineack
(Post 1258271)
is there anything the FAB coils do right?
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Looks like you just have some things to iron out and try again. 321 is still really solid power, but obviously you can make more.
Originally Posted by aidandj
(Post 1258270)
10.6:1 is leaving a good bit of power on the table.
Agreed that it's still too fat and should be trimmed. |
A 5th gear pull would have showed a little more power. Leaning it out some would have made more power. I don't know anything about your setup, but with the way TQ falls off up top I have to wonder if more timing up top would have made more power. Overall numbers look good to me and there was definitely more left in it.
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higher gear would just make it spool better. how would it make more power?
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Originally Posted by 18psi
(Post 1258290)
higher gear would just make it spool better. how would it make more power?
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The "loss" difference is usually not more than a couple hp, which can easily be attributed to anything between pulls. There was even a dyno shootout done on other forums based on this discussion.
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Shouldn't 6spd be dyno'd in 5th?
Edit: apparently it's not that big of a deal |
Originally Posted by pdexta
(Post 1258289)
A 5th gear pull would have showed a little more power.
Originally Posted by 18psi
(Post 1258296)
The "loss" difference is usually not more than a couple hp
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We're not arguing. I'm saying it doesn't really matter because the difference it would show would be same as the difference shown between two identical pulls.
I'm saying he's got other problems to fix, and dynoing in wrong gear is the least of them. *edit: here you can start by reading this: http://forums.nasioc.com/forums/show....php?t=1478091 |
Either way, it's obvious there's power there that didn't make it to the dyno sheet. I wouldn't let this one drag you down. The real way to get your dyno-sheet-for-bragging is go there and put some time in so you can tune.
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