DIY tuning/remapping with mazdaEdit and Openport

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by warpc0il » Tue Jan 22, 2019 8:43 pm

This would also be a good time to mention that not all "mini-maps" are the same and therefore, just because a car has been "mini-mapped" for D585's by one vendor, doesn't mean it is set the same as another vendor would have done - it's not just a simple "switch".

Time is also a factor, in that many vendors have learnt over the years and what they would do now could be significantly different to what they were doing nine years ago.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Phil Bate » Wed Jan 23, 2019 12:45 am

Indeed. Where available, using the specifications from the coil manufacturer is key however it's quite trivial to run the coil and watch the current draw under charging to establish the ideal dwell figure if not available. I always check that it gets a chance to fully discharge too - there's no point loading the coils up only for them to be interrupted half way through a spark for the next charge event.
Duty cycle is a bit of a shot in the dark if you don't have it so you have to make a call taking into account the design of the coil, how beefy it is and what heat management it has in comparison to similar units with known values. But that said, I think all our trusted aftermarket coil suppliers have detailed technical specs for their coils these days and supply tables to suit.

It has moved on a bit from when we were all using that same GM table for every LS2 clone :D

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Sat Nov 09, 2019 5:52 pm

Has any one got the Pro version?

Interested to know what other features are available over the Personal version

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by warpc0il » Sat Nov 09, 2019 6:05 pm

I thought the Pro just allowed you to use on multiple cars, rather than only the one.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Ryan Rotary Performance » Sat Nov 09, 2019 6:06 pm

The only difference is (as far as I know) is that its not locked to one VIN.

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Sat Nov 09, 2019 6:42 pm

Fair enough. I read on an American forum that there was extra features - which I obviously took with a pinch of salt

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Sat May 09, 2020 10:13 pm

So then Gents

I'm about to delve into tuning my Rexi and have a couple of questions
1) do I need to buy the tactrix OBD doofer directly form tactrix in San Francisco ? As it seems to be sold by a number of people such as



as the way things are I doubt that much will be coming from USA fro the foreseeable

2) As I gather the system is all MAF based so I'm assuming its similar to other Denso systems I've used in the past, where get the MAF scaling right 1st and then adjust the target lambda map and increase the load sites to ensure no clipping ?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by bigpete8 » Tue May 12, 2020 1:30 pm

That one is from Wuhan so not much better.....
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Tue May 12, 2020 1:49 pm

possibly not
just wondering how careful do I have to be with where I source the electronics as chances are Tactrix probably buy them from China anyhow....

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Ryan Rotary Performance » Tue May 12, 2020 7:16 pm

I'd go for Tactrix, the Chinese ones are ok for mini maps and "work" for tuning but you really need to be in 4th to get the resolution you need where as tactrix is fine in any gear.

Impossible to VE tune with the Chinese clone too

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Tue May 12, 2020 10:15 pm

thanks for that Carl
so worth the extra then
and I'll need to VE tune for the supercharger install

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by V8 Power » Wed May 13, 2020 6:10 am

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Wed May 13, 2020 8:04 am

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Sat May 30, 2020 6:47 pm

OK tactrix is here
mazda edit all registered
let the tuning commence!

so to begin with I've turned off the secondary air DTC's so I can remove the air pump and save a bit of weight
I've also lowered the fan temp switch points
and leaned off the rich areas of the fuel maps ( 12.4 AFR vs the 11.3 that was there)

I'm now presuming I'll need to take some logs and re-shape the MAF curve so it actually follows the new target lambda

slightly dissapointed there is no injection timing table
and dare I advance it at all? I think I may borrow a knock box from work to see what sorts of noises it makes on the stock timing and go from there I guess

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by qwakers » Sat May 30, 2020 7:11 pm

timing advance on rotaries is very high risk and gives very little to no benefit.

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by warpc0il » Sat May 30, 2020 8:18 pm

:whathesaid:
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Sat May 30, 2020 8:22 pm

High risk, but if you compare the USDM Ignition map to UKDM there is a difference. Slightly advanced in some areas

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by warpc0il » Sat May 30, 2020 8:27 pm

That would be strange as the US pump fuel is, in general, a lower octane than the UK. (higher numbers but a different scale)
There must be other factors at work here, so I wouldn't go just tweaking the advance to experiment.

Think of the rotary knock sensor like the low oil warning light, by the time it activates the engine is already damaged.
This is totally different to piston engines that may be quite happy to dynamically advance until knock is sensed, then just back off a bit.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Sat May 30, 2020 10:24 pm

is there any information out there on knock thresholds , pressure rise over time ?
any combustion info at all?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Sat May 30, 2020 10:25 pm

Paul_13 wrote:
Sat May 30, 2020 8:22 pm
High risk, but if you compare the USDM Ignition map to UKDM there is a difference. Slightly advanced in some areas
interesting do you have the two maps you can post up?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Sat May 30, 2020 10:35 pm

They're on the laptop, I'll have to have a look tomorrow.

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Sun May 31, 2020 1:25 pm

much obliged

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