To retune or not
#1
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To retune or not
Heres my build thread:
I am running a built motor with a GT3076R @ 18psi with a Hydra 2.6. I haven't dynoed since I fixed some issues. My question is, does this tune look bad. I sent it to FM and they said nothing major stood out but a retune would be nice. I'm not aware of any miata tuners in Arkansas, I'm learning how to tune but only so I can understand it. I have no plans on tuning it myself for fear I would mess it up.
The car runs good and idles well. I really can't say I notice any issues as far as drive ability.
I am running a built motor with a GT3076R @ 18psi with a Hydra 2.6. I haven't dynoed since I fixed some issues. My question is, does this tune look bad. I sent it to FM and they said nothing major stood out but a retune would be nice. I'm not aware of any miata tuners in Arkansas, I'm learning how to tune but only so I can understand it. I have no plans on tuning it myself for fear I would mess it up.
The car runs good and idles well. I really can't say I notice any issues as far as drive ability.
#4
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For me it's going to cost a penny to get it to a good tuner. I'm willing to pay it, but I'd like to wait on some other supporting mods first. So will the current tune ruin my motor, is it safe to continue driving on?
#11
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perhaps comparing your maps, to the maps people have posted will help you decide to take it to a pro, or try to lean "hands on". it can be done, many have tried and failed. just based on the numbers, it looks pretty simple
42 Autosport near-ish
I'm putting some feelers out to a few tuners. My friend has a dyno so I could do remote tuning. The funny thing is, there are two dyno shops in my town but they only tune muscle cars.
Last edited by miataman04; 04-27-2017 at 10:11 PM.
#12
I run Hydra 2.6 as well. My advice would be if you are worried about it, turn down the boost and load in a conservative spark map. Then I would just drive around with the full screen gauge readouts. dip into boost with closed loop disabled and see how your AFRs look. I'm sure you know where you should roughly be AFR wise based on boost. If that looks good do a pull and datalog. Then verify AFRs look good throughout the pull.
If they do, increase the boost a few psi and repeat. A conservative spark map should give you a bit of a safety net as you try to verify your AFR readings.
Once everything looks pretty good, you can re-enable closed loop. Just make sure your target table jives, or is close, to where your actuals are.
If this all looks good you can consider adding back in some some of the spark timing you were running previously. Then just datalog a few more times to make sure everything is safe.
This may not be the most efficient way but its the way I did it with my car. I just took it to the dyno to tune spark earlier this week. I spent maybe 5 minutes fine tuning the fuel map at target boost and the rest of the time messing with spark. just work your way up slowly if you want to be safe. You'll learn a lot along the way too. And you wont feel dependent on someone else to make your car "safe"
If they do, increase the boost a few psi and repeat. A conservative spark map should give you a bit of a safety net as you try to verify your AFR readings.
Once everything looks pretty good, you can re-enable closed loop. Just make sure your target table jives, or is close, to where your actuals are.
If this all looks good you can consider adding back in some some of the spark timing you were running previously. Then just datalog a few more times to make sure everything is safe.
This may not be the most efficient way but its the way I did it with my car. I just took it to the dyno to tune spark earlier this week. I spent maybe 5 minutes fine tuning the fuel map at target boost and the rest of the time messing with spark. just work your way up slowly if you want to be safe. You'll learn a lot along the way too. And you wont feel dependent on someone else to make your car "safe"