GR Yaris The EcuTek thread

hi guys, my tuner tells me thast ecutek havent got around the torque limiting affect that toyota have on the factory ecu (trying to make it feel like an NA car), is this something anyone else has heard of? is there any updates from ecutek re this? any new software releases planned?
 
Philevo6 said:
How times have changed.... I remember my Evo 6 being on the rollers the best part of a day with ecutek... Tweeking/logging/analysis and numerous runs to get it spot on. 😎

Now you are sent a file via email/phone and told to go drive.
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I am so happy this exists nowadays... otherwise I would have no access to tune my car, as there are no GRY tuners in my country :)
 
Hello,
some time ago I noticed that Whifbitz (https://www.garagewhifbitz.co.uk/toyota-gr-yaris-tuning-guide/) removed Kelford Cams EZ mapping from their options and now only offers ECUtek mapping for basic modifications (intake, exhaust, and intercooler). Their previous ECUtek mapping option included EZ cams, but that's no longer available. Beyond that, they now recommend using Syvecs when running EZ and A cams. They also discussed an issue that was published in a YouTube video and two cases they encountered, so I think tuners have become more conservative lately. Nnow Whifbitz is proposing to forge the engine with upgraded pistons and connecting rods to ensure safety against this problem.
 
User1029 said:
I currently have a GRC with Kelford A cams and Artec 400 turbo and have been driving on it for 800 miles. Graham at Boosted Performance Tuning etuned the car very well with Ecutek :) I have dyno session to see what power it makes on 1/7 with 93 octane :) https://www.grcorollaforum.com/threads/koru-works-built-2024-artec-turbo-ice-cap-grc.5751/unread
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More interested in the graph than just the number.

The problem with ECUTEK is the relatively low amount of data the tuner can see vs a stand-alone ECU. It basically comes down to courage and intuition, which all go out the window with an e-tune, YIKES.
 
Hey all, recently had EcuTek map done. I am noticing a step in the power output at certain RPM, maybe certain load I'm not sure yet.

No change to throttle input but it suddenly picks up.

Anyone else have this?
 
Fairly typical of quite a few remaps. Supporting modifications help to smooth this out with increased mid range torque. Whose map is it? My Litchfield one was nice and smooth. Since I have added some more mods it has gained more of a power band and is back in next week to have the map adjusted for the new configuration
 
GJR said:
Fairly typical of quite a few remaps. Supporting modifications help to smooth this out with increased mid range torque. Whose map is it? My Litchfield one was nice and smooth. Since I have added some more mods it has gained more of a power band and is back in next week to have the map adjusted for the new configuration
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How much are Litchfield charging for this ? I have a similar plan
 
Woody said:
How much are Litchfield charging for this ? I have a similar plan
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Also interested to know as I had a base tune then a revised tune but have seen that others have had numerous tweaks and revisions to their map files
 
I won't say who did it, as they have promised to fix it.

Supporting mods are in place.

You can feel the power output varying and it's spoiling the car.
 
matt-c-GR said:
I won't say who did it, as they have promised to fix it.

Supporting mods are in place.

You can feel the power output varying and it's spoiling the car.
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I think you need to spill the beans!
 
Before and after ecutek tune.

The car has an Airtec intercooler, turbo inlet elbow and printed intake snorkel, otherwise stock.

Really happy with the improvement. The additional low torque is useful on the road, but it's the top end gain I'm most looking forward to using next time at the track.

1740184951164.webp
 
jorgelucho said:
Hello everyone, just curious—do any of you know the boost level reached with your final maps from your tuners? At what point could it be said that the boost is reaching unsafe thresholds on stage 1(intake and exhaust), no springs, no cams.

thanks
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My tuner told me that the ecutek tunes are only increasing peak boost by 1-2 psi over standard. The stock ECU bleeds off boost rapidly to achieve 'torque targets'; the ecutek doesn't decrease boost as rapidly, resulting in greater top end power.
 
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