GR Yaris ECU solution .... Is it real???

olsperformance said:
The OEM ECU structure is totally different to Syvecs. There are thousands of tables available with no definition of what they are and what they do. It is down to the tuner to identify what they are, what they do and modify them accordingly while trying to find factory limiters within the stock software which sometimes prevent you from achieving what you are trying to.

Syvecs is a totally different platform, based on its own architecture and each map is defined so you know exactly what changes you are making and the effect of those changes. The ability to data log and see the effect of the changes you are making in live time is to a level that you will not see with another software or OEM ECU tuning. There are no limitations with Syvecs and the world is your oyster.

The benefit for those who tune with Syvecs and later start development using the OEM ECU, is the knowledge gained and a good understanding of what the limits are for different hardware setups such as with or without valve springs, with or without an exhaust etc.. however, for this knowledge to be of any use, the tuner needs to find the relevant maps and limiters in a very complex ECU structure that is the Denso ECU. We have achieved a good level of tuning using the OEM ECU so far in our development with sensible boost levels and no valve float.

The bottom line is, it is most definitely not a copy/paste between Syvecs and OEM ECU, if only it was that easy. If you want the very best from your GR then Syvecs is the way to go and is the reason that as a Syvecs dealer and approved tuner, our own car is and will remain on Syvecs. However, if you still want a great performance improvement using the OEM ECU recognising that you will not see the same power levels, usability and accessibility of Syvecs, then find yourself a reputable tuner who has done extensive development and is confident in their work.

Here is our Stage 2 results using the OEM ECU.
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Thanks for sharing. Really tempted to go Syvecs once warranty is out (only good 2 years away here).
Which hw on stage 2 and was it present on the oe graph?
 
Duncan said:
@olsperformance do you have any experience of hybrid turbos on this platform yet, Syvecs or OEM ECU?
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Yes, only with Syvecs. We tuned one remotely for a customer using a TTE Hybrid. It was on a Mustang Dyno which measures WHP and we finished on 368whp with Kelford Valve Springs and Kelford Cams.
 
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Onehp said:
Thanks for sharing. Really tempted to go Syvecs once warranty is out (only good 2 years away here).
Which hw on stage 2 and was it present on the oe graph?
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I would highly recommend it. The Stage 2 graph I posted in my previous comment using the OEM ECU had a milltek exhaust including decat and nothing else.
 
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olsperformance said:
Yes, only with Syvecs. We tuned one remotely for a customer using a TTE Hybrid. It was on a Mustang Dyno which measures WHP and we finished on 368whp.
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Thank you. Was that with stock or Kelford Cams? the only other dyno I've seen is one from Whifbitz that was cam +TTE with similar WHP. Not much info to go on, but sounds like a +70whp pick up ish, which is significant. Is a clutch a must at that level of torque?
 
Duncan said:
Thank you. Was that with stock or Kelford Cams? the only other dyno I've seen is one from Whifbitz that was cam +TTE with similar WHP. Not much info to go on, but sounds like a +70whp pick up ish, which is significant. Is a clutch a must at that level of torque?
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It was with Kelfords Cams too. The clutch should be ok with torque capped at a sensible level.
 
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That OEM map looks to iron out the torque dip at 5,600-5,700 rpm, which is definitely noticeable. Have you run a standard car with just the remap and no other mods?
 
Steve said:
That OEM map looks to iron out the torque dip at 5,600-5,700 rpm, which is definitely noticeable. Have you run a standard car with just the remap and no other mods?
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Standard car with no mods below.

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very interresting...thx for sharing.....no easy descition which way to go....
 
olsperformance said:
Yes, only with Syvecs. We tuned one remotely for a customer using a TTE Hybrid. It was on a Mustang Dyno which measures WHP and we finished on 368whp with Kelford Valve Springs and Kelford Cams.
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That remote tuned is interesting, so you can adjust the Syvecs without the need to take the car to your garage? Does it work like that with all the ECUs i.e Motec or this is a special treat of the Syvecs?
 
olsperformance said:
It was with Kelfords Cams too. The clutch should be ok with torque capped at a sensible level.
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Great. Sounds like about the power limit then before things get expensive with G25/new manifolds/DP etc.
Last question, what boost level was the 368whp?
Thanks
 
MRA3 said:
That remote tuned is interesting, so you can adjust the Syvecs without the need to take the car to your garage? Does it work like that with all the ECUs i.e Motec or this is a special treat of the Syvecs?
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It's possible to remote tune with any ECU - all you need is a laptop, the appropriate tools, software and TeamViewer to allow remote access to your device. You also need access to a dyno for data logging. It's possible to data log on the road but the process takes too long if doing this remotely.
 
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olsperformance said:
It's possible to remote tune with any ECU - all you need is a laptop, the appropriate tools, software and TeamViewer to allow remote access to your device. You also need access to a dyno for data logging. It's possible to data log on the road but the process takes too long if doing this remotely.
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Well, I guess then remote tuning is not a ‘feature’ of the ECU then, I thought it had something different via software or something…
 
Someone please correct me if wrong, but I thought that with Syvecs the software comes along, and with Motec it doesn't, so for remote tuning or those that can do some DIY adjustments that's a big difference, if correct.
 
Onehp said:
Someone please correct me if wrong, but I thought that with Syvecs the software comes along, and with Motec it doesn't, so for remote tuning or those that can do some DIY adjustments that's a big difference, if correct.
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You‘ll get a base map with Motec as well.
But will need some fine tuning like Syvecs.

Unless you‘re a professional, you won‘t do any DIY adjustments to neither of those two.
 
Phil1291 said:
You‘ll get a base map with Motec as well.
But will need some fine tuning like Syvecs.

Unless you‘re a professional, you won‘t do any DIY adjustments to neither of those two.
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I don't mean the map on the car, I meant the computer software that allows adjusting/making maps.

Sorry if I was unclear, not 'DIY' in 'anyone can have a go' sense, I mean that if the person buying is knowledgeable it is possible to make adjustments, and thus it's not a 'dealer only access' of the software situation.

So is it correctly this sw comes with the Syvecs but not with Motec and thus making remote tuning more complicated?
 
Syvecs software (for tuning, data logging/reviewing etc) is freely downloadable from their website, just plug a laptop in to the ECUs Ethernet port and off you go.
Can’t speak for MoTec.
 
Duncan said:
Syvecs software (for tuning, data logging/reviewing etc) is freely downloadable from their website, just plug a laptop in to the ECUs Ethernet port and off you go.
Can’t speak for MoTec.
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That’s great and it’s probably what Onehp was referring too.

In regards of the Syvecs base map, what I heard when asking a tuner that deals with Syvecs for the GR, is that it is a similar map to the OEM in the sense that it won’t make you any extra power but response is good and they’ve done a good job with it.
 
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