Note the 3:45AM timestamp on the dyno sheet. We've put several LONG days of dyno time into building this tune. :sleep:
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steve, whats the hp and torque gains on this ?
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Originally Posted by titaniumgr3y
(Post 4879153)
steve, whats the hp and torque gains on this ?
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Originally Posted by NotAPreppie
(Post 4879154)
Bottom of the second dyno sheet...
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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. |
Originally Posted by NotAPreppie
(Post 4879158)
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. 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. |
Awesome, thanks again for sharing all of your work on this!
I'd tell you this swayed me to buy your product but I already did that in 2017, so... ¯\_(ツ)_/¯ |
Originally Posted by Steve@VersaTune
(Post 4879073)
I don't log percent of max calc load. It's an arbitrary value.
Originally Posted by Steve@VersaTune
(Post 4879165)
This ECU/engine is very sensitive to heat. It dumps fuel when it gets hot.
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Originally Posted by Brettus
(Post 4879173)
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 . I always add a % over stock to that table so it doesn't interfere with tuning .
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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! https://cimg9.ibsrv.net/gimg/www.rx8...cc07aba426.jpg |
are you guys going to make a new tune for cars with intake, exhaust? thanks!
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That's the plan. We have a REVi intake ready to go on and a full TurboXS exhaust on order.
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right on, ill flash it whenever you upload it. thanks again!
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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?
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Originally Posted by Chrishoky
(Post 4879292)
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?
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. |
💪🏼💪🏼💪🏼💪🏼😎
Originally Posted by Steve@VersaTune
(Post 4878835)
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! |
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 https://cimg7.ibsrv.net/gimg/www.rx8...11da416e3f.jpg Rear Rotor https://cimg8.ibsrv.net/gimg/www.rx8...ad0930efcc.jpg |
If you are unhappy with those numbers, I'm willing to trade with you
https://cimg1.ibsrv.net/gimg/www.rx8...40bef84e7e.jpg Front rotor https://cimg5.ibsrv.net/gimg/www.rx8...a5a70342ea.jpg Rear rotor |
Originally Posted by Xero Ryuu
(Post 4879568)
If you are unhappy with those numbers, I'm willing to trade with you
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Originally Posted by Steve@VersaTune
(Post 4879569)
Ouch. That's an "opportunity" to put in a ported motor.
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. |
Originally Posted by Steve@VersaTune
(Post 4879563)
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 :( Mechanics gloves. I noticed a significant reduction in compression test results with my RCT-V5(.0) when |
Redid the compression test. Slightly better numbers.
https://cimg1.ibsrv.net/gimg/www.rx8...87346a5415.jpg https://cimg2.ibsrv.net/gimg/www.rx8...d52b17000b.jpg |
I put a scope on the coil and logged dwell time.
https://cimg2.ibsrv.net/gimg/www.rx8...3fcb22e4f3.jpg Idle rpm (~830) @13.90v https://cimg4.ibsrv.net/gimg/www.rx8...e868271ae2.png 2000 rpm @ 13.90v https://cimg5.ibsrv.net/gimg/www.rx8...81c5c39ffd.png 3000 rpm @ 13.90v https://cimg6.ibsrv.net/gimg/www.rx8...d530948464.png Corrected coil dwell scaling will be in the next release. https://cimg9.ibsrv.net/gimg/www.rx8...d0023c783a.png |
Is this to display human-readable numbers in that table?
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Yes. This is actual dwell time in milliseconds.
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