VersaTune's Shop Car Tuning Journey
#29
#30
What am I doing here?
Join Date: Mar 2006
Location: 2017 Miata RF Launch Edition
Posts: 3,606
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Original (first dyno sheet, baseline second dyno sheet):
170/120
Post tune-up (run 2 second dyno sheet, baseline third dyno sheet):
179/126
Post tune (run 2 third dyno sheet):
186/132
Steve,
Thanks for posting all of this info.
You only posted a single dyno sheet for each result but did you do multiple dyno runs at each stage to verify repeatability?
Also, still waiting with baited breath for the compression test results.
170/120
Post tune-up (run 2 second dyno sheet, baseline third dyno sheet):
179/126
Post tune (run 2 third dyno sheet):
186/132
Steve,
Thanks for posting all of this info.
You only posted a single dyno sheet for each result but did you do multiple dyno runs at each stage to verify repeatability?
Also, still waiting with baited breath for the compression test results.
Last edited by NotAPreppie; 01-17-2019 at 02:36 PM.
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hufflepuff (12-06-2020),
titaniumgr3y (01-17-2019)
#31
RX8Club.com Sponsor
Thread Starter
Lastly, VersaTuner off-the-shelf tunes are not locked. You can open them in VersaTuner and see exactly what you have. No black boxes or smoke and mirrors. Some of the locked tunes I've opened up over the years are scary. VersaTuner gives you full transparency.
Compression test will probably happen this weekend. We wanted to get the tune published asap so that people have a turn-key solution for a stock car.
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Chrishoky (01-18-2019)
#33
Boosted Kiwi
iTrader: (2)
Max. calc load is actually a ceiling . If your logs are showing 100% max. calc load on anything but a bone stock rx8 then the tune can go lean for any one of several reasons (hot IAT being one of them). I always add a % over stock to that table so it doesn't interfere with tuning .
Last edited by Brettus; 01-17-2019 at 05:39 PM.
#34
RX8Club.com Sponsor
Thread Starter
I adjust Max Load out of the way. That's why I don't bother logging it.
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Brettus (01-17-2019)
#35
RX8Club.com Sponsor
Thread Starter
To give you an idea how much heat an RX-8 puts out, we used two 22" Patterson high velocity fans on the car and a 48" 18,000 cfm drum fan in the shop door to keep it cool. Each 22" fan puts out 5570 CFM.
With just one 22" fan, the ECT would be 90C or more by the end of the pull. With the second fan, it only went up a few degrees.
For comparison, I run my turbo ND Miata all day on the dyno with just one 22" fan.
Make sure you maintain your cooling system properly!
With just one 22" fan, the ECT would be 90C or more by the end of the pull. With the second fan, it only went up a few degrees.
For comparison, I run my turbo ND Miata all day on the dyno with just one 22" fan.
Make sure you maintain your cooling system properly!
#39
Registered
iTrader: (9)
Any plans for including CEL deletions, OMP rates, or fan temp triggers to these tunes or is that something that the end user is going to be expected to manually modify? Also, I see intake and exhaust mentioned but how about CAT delete?
Last edited by Chrishoky; 01-19-2019 at 10:33 PM.
#40
RX8Club.com Sponsor
Thread Starter
VersaTuner allows full custom tuning, and all of the off-the-shelf tunes are open and unlocked. You can open an OTS tune and modify it to your liking.
Things like launch control, no-lift-shift, and CEL masking are set in Tune Customizer and are applied to all tunes you flash. OMP and fans are set in the main Tune Editor.
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Chrishoky (01-20-2019)
#41
💪🏼💪🏼💪🏼💪🏼😎
Thanks. I'm trying to make this as repeatable as possible.
I wanted to create a healthy stock baseline to use for comparison. I have a rotary compression tester, but the lift was busy today. I'll do a compression test soon.
The VersaTuner performance tune for a 100% stock car is coming soon!
I wanted to create a healthy stock baseline to use for comparison. I have a rotary compression tester, but the lift was busy today. I'll do a compression test soon.
The VersaTuner performance tune for a 100% stock car is coming soon!
#42
RX8Club.com Sponsor
Thread Starter
Compression test results. It seems a bit low for 10k miles.
Not sure how this will affect the results, but I used the leading plug holes not the trailing like the instructions clearly state right on the tester. Didn't notice till I looked at the pics. I referred to the instructions on the Racing Beat website which said to use the leading plug holes.
I'm not really anxious to burn my hands messing with a compression test on a hot engine again
Front Rotor
Rear Rotor
Not sure how this will affect the results, but I used the leading plug holes not the trailing like the instructions clearly state right on the tester. Didn't notice till I looked at the pics. I referred to the instructions on the Racing Beat website which said to use the leading plug holes.
I'm not really anxious to burn my hands messing with a compression test on a hot engine again
Front Rotor
Rear Rotor
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d-LoiX (09-02-2021)
#45
Project Seca
iTrader: (10)
I tried telling that to Bank of America, they told me maybe some other time.
So for the last 8 months shes been a driveway trophy, probably will stay that way into 2020 and hopefully it will be a different story. Staying subbed to this thread and asked the premixed fuel power output question for that reason. Just looking for a baseline, prior to any tuning/factory tune, rwhp numbers. I think it would be interesting to have those numbers of premix and no premix on factory tune, and then compare it to tuned with boltons for premix/nomix respectively to see if it really does have any significant reduction in power output to then also directly compare and weigh out the costs and benefits of premix. Would make for an extremely valuable comparison.
So for the last 8 months shes been a driveway trophy, probably will stay that way into 2020 and hopefully it will be a different story. Staying subbed to this thread and asked the premixed fuel power output question for that reason. Just looking for a baseline, prior to any tuning/factory tune, rwhp numbers. I think it would be interesting to have those numbers of premix and no premix on factory tune, and then compare it to tuned with boltons for premix/nomix respectively to see if it really does have any significant reduction in power output to then also directly compare and weigh out the costs and benefits of premix. Would make for an extremely valuable comparison.
#46
What am I doing here?
Join Date: Mar 2006
Location: 2017 Miata RF Launch Edition
Posts: 3,606
Received 649 Likes
on
510 Posts
Compression test results. It seems a bit low for 10k miles.
Not sure how this will affect the results, but I used the leading plug holes not the trailing like the instructions clearly state right on the tester. Didn't notice till I looked at the pics. I referred to the instructions on the Racing Beat website which said to use the leading plug holes.
I'm not really anxious to burn my hands messing with a compression test on a hot engine again
Not sure how this will affect the results, but I used the leading plug holes not the trailing like the instructions clearly state right on the tester. Didn't notice till I looked at the pics. I referred to the instructions on the Racing Beat website which said to use the leading plug holes.
I'm not really anxious to burn my hands messing with a compression test on a hot engine again
Mechanics gloves.
I noticed a significant reduction in compression test results with my RCT-V5(.0) when
#48
RX8Club.com Sponsor
Thread Starter
I put a scope on the coil and logged dwell time.
Idle rpm (~830) @13.90v
2000 rpm @ 13.90v
3000 rpm @ 13.90v
Corrected coil dwell scaling will be in the next release.
Idle rpm (~830) @13.90v
2000 rpm @ 13.90v
3000 rpm @ 13.90v
Corrected coil dwell scaling will be in the next release.
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NotAPreppie (01-28-2019)