Jon316G's Dyno Run Analysis
09-14-2009, 07:42 PM
#1
Jon316G's Dyno Run Analysis
I performed 3 dyno runs today and want some opinions since I'm not very knowledgeable on reading these graphs.
List of mods are in my signature.
The outcome was surprising... I expected a little more, but its difficult to judge since I don't have a stock dyno to base the improvements off of.
I also don't like the A/F ratio since it starts off lean and gradually richens.
Shouldn't this be more linear?
And could this be effecting my numbers (HP and/or TQ)?
My first thought was, "Oh no, is it time for a compression test!"
But the graph curves appear very good.
Wouldn't I see some crazy "spiking" along the curve if I had any electrical or mechanical issues?
Each PDF has 3 pages of information, the first page is the graph and the other two are the text-based data.
Thanks for taking the time to review this and any input would be greatly appreciated.
Dyno Run 1.pdf Dyno Run 2.pdf Dyno Run 3.pdf
List of mods are in my signature.
The outcome was surprising... I expected a little more, but its difficult to judge since I don't have a stock dyno to base the improvements off of.
I also don't like the A/F ratio since it starts off lean and gradually richens.
Shouldn't this be more linear?
And could this be effecting my numbers (HP and/or TQ)?
My first thought was, "Oh no, is it time for a compression test!"
But the graph curves appear very good.
Wouldn't I see some crazy "spiking" along the curve if I had any electrical or mechanical issues?
Each PDF has 3 pages of information, the first page is the graph and the other two are the text-based data.
Thanks for taking the time to review this and any input would be greatly appreciated.
Dyno Run 1.pdf Dyno Run 2.pdf Dyno Run 3.pdf
Last edited by Jon316G; 09-14-2009 at 10:18 PM.
09-14-2009, 08:00 PM
#7
FLAME ON!
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I had low numbers when i dynoed my car for the first time. But having never done this before I had no clue what I was doing lol
After I found I needed new coils wire spark plugs oil change and a seafoam really bad.
This is a good thread to check out
https://www.rx8club.com/showthread.p...highlight=dyno
After I found I needed new coils wire spark plugs oil change and a seafoam really bad.
This is a good thread to check out
https://www.rx8club.com/showthread.p...highlight=dyno
09-14-2009, 08:14 PM
#9
Your AFR actually looks pretty good for an NA car. Not nearly as rich as stock.
Your power curve is pretty good too. My money is on the dyno reading low. Don't get hung up on it tho, it the car still feels quick then that's all that matters. But now you have a basline with your current mods so if you change anything you have this baseline
Your power curve is pretty good too. My money is on the dyno reading low. Don't get hung up on it tho, it the car still feels quick then that's all that matters. But now you have a basline with your current mods so if you change anything you have this baseline
09-14-2009, 08:54 PM
#17
FLAME ON!
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How about staticleg diy? did you his steps?
https://www.rx8club.com/showthread.p...highlight=dyno
https://www.rx8club.com/showthread.p...highlight=dyno
09-14-2009, 09:19 PM
#19
this space for rent
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How come you didnt take it to redline? Graphs show 8200.
Dyno in 4th gear, should be 5th (although I dont think thats going to cost you the 10-15 HP you were hoping for.
Im no tuning guru, but 12:1 up top seems a little rich to me.
Since you dont have a stock baseline, you cant tell how much you gained with the mods. Maybe yours stock is one of the 170 HP cars?
Dyno in 4th gear, should be 5th (although I dont think thats going to cost you the 10-15 HP you were hoping for.
Im no tuning guru, but 12:1 up top seems a little rich to me.
Since you dont have a stock baseline, you cant tell how much you gained with the mods. Maybe yours stock is one of the 170 HP cars?
09-14-2009, 10:11 PM
#24