Toyota Yaris GR4 4x4 Rally going into production.....

Pretty much what you would expect from the circuit vs normal, few seconds for the rubber the rest from the diffs, I mean the would you even fit the Dunlops to your shopping car :D

At 1280kg for its size it is not lightweight, I think it just has a nice balance to it and the suspension gives you decent confidence to carry some speed, I reckon once you put some good track tyres on its going to be hard to beat on a small track.

Would take the same alloys as my MX5 too, which is making some wedsports very appealling right now, I was considering going cheaper with some Bolas but if I go for the Yaris I can talk myself into it, both are lighter than stock at 0.7-1.2kg a wheel, I just couldn't put less than et45 on the Mazda without a big pull for 255s, in fact I have just been asking bola if they'd do a 47 so I could limit body mods to just flat arches but you would not want that offset on the yaris

I'd be fine with a tuning box, ran one for a long time on my Abarth and although it did blow turbo at the Nordshcliefe, I had turned it up to max and it was a long time a max boost there compared to anywhere else, when you consider the bodge it was in my case remap + box to get around limits taking it to ~ 230bhp I had it coming as a sensible man would have fitted at the very least a stuffed turbo, not me :D
 
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Pretty much what you would expect from the circuit vs normal, few seconds for the rubber the rest from the diffs, I mean the would you even fit the Dunlops to your shopping car :D

At 1280kg for its size it is not lightweight, I think it just has a nice balance to it and the suspension gives you decent confidence to carry some speed, I reckon once you put some good track tyres on its going to be hard to beat on a small track.

Would take the same alloys as my MX5 too, which is making some wedsports very appealling right now, I was considering going cheaper with some Bolas but if I go for the Yaris I can talk myself into it, both are lighter than stock at 0.7-1.2kg a wheel, I just couldn't put less than et45 on the Mazda without a big pull for 255s, in fact I have just been asking bola if they'd do a 47 so I could limit body mods to just flat arches but you would not want that offset on the yaris

I'd be fine with a tuning box, ran one for a long time on my Abarth and although it did blow turbo at the Nordshcliefe, I had turned it up to max and it was a long time a max boost there compared to anywhere else, when you consider the bodge it was in my case remap + box to get around limits taking it to ~ 230bhp I had it coming as a sensible man would have fitted at the very least a stuffed turbo, not me :D


Just let me confirm I am readin that right, you had your Abarth remapped, and then you added a tuning box to push it even further beyond the remap?


P.S. The app changed to processing and the dealer rang me to say it will be going to build soon and ETA has moved forward to March 5th.
Will get the Abarth listed in January and see if I can make a profit on it. :D
 
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It was a factory SS map( but imagine the same for any map )which you could run a tuning box along side to push further, as mentioned not the correct way to do things but it certainly worked for my purposes, at the time no one was mapping the thing, these days they are in the ECU and there are options but car was new back then and no one was tuning multiairs, now there are builds out there doing 400hp@8500rpm but my car is the wrong side of its life for that, I've been tracking and competing in it since it passed breakin mileage ~10 yrs ago.

That's the appeal to the Yaris to me, loads of tuners interested, mean there should be more options from the off should I get the itch.
 
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Some quick dyno runs with and without just a cat back from RS Fabrications:

ACtC-3eQDm5P_oDYq7EWVSMrxkRKLIG23sJZEAMTKCvbhjHJt-d-qxr-SFKY4xVDHBrHpnqLlBoz49hnXp_EljIlB2rbGZaqIrNfu3bMuulYoq9mH30kgOTJ-XcnAs6gdmVmCMTrREPsCISpL_F_rK85oBrn=w1024-h529-no


New system has slightly more appropriate tips too than the one in the video before:
ACtC-3fEc8rYpK_aMqfm3RqsN1wHrO1zfd-TAr1YMMLSE98lUzxNF8oltWZiuOGV8DPEnHCCdjM4uM5DPgeQZE2IVBkpG8gdjQgP3HiQBbv589Hvg03nYafrGP84CCuMHj-xcMider3DMYXx2j2FVfYGwYj7=w1024-h768-no

ACtC-3dx2qnmMkIFPGbVmHGXoVuW7XpGITwORBMaMN7nL06LZNhZoTPccE9A8u5RHPYh7U_LxuJe_jwc_PPnC5NDFnSG0k7sJ5woO3bjP-GPNA-Lo3EGYMvlFppo18IrvTNxT6hxZtVJN_4ppngTfeMjZSeq=w1024-h768-no
 
10 horsepower from bolting on a cat back, not bad, any weight saving?

With the tuning box be interesting to see what it gets, 310-315 maybe.
 
Tuning box without exhaust is doing 307, dte put a youtube up already I thought I posted it here.

That is good seems a tuning box with bolt-ons be good for 315-320 then, solid 50 over the stock dynos and I suspect a proper remap with bolt-ons be 330ish, maybe 350 top. Then bigger turbo time! :D
 
Just let me confirm I am readin that right, you had your Abarth remapped, and then you added a tuning box to push it even further beyond the remap?

So managed to find the dyno from the OCuk powerstation dyno days which show the first few stages of progression stock, remap and remap + tmc box on 5, I ended up running this higher which probably lead to my issues, fuelling was fine, final before I put my car back to stock was something like 230bhp and 270lbs torque, which is plenty in a ~1135kg shopping trolly, so if you fancy more from your Abarth it does do something, key thing is fuel quality with these, they aggressively pull timing

image001.png


That is good seems a tuning box with bolt-ons be good for 315-320 then, solid 50 over the stock dynos and I suspect a proper remap with bolt-ons be 330ish, maybe 350 top. Then bigger turbo time! :D

DTE show the Yaris dynoing at the figures the exhaust guys are getting stock, also shows where the plugs are.

 
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So managed to find the dyno from the OCuk powerstation dyno days which show the first few stages of progression stock, remap and remap + tmc box on 5, I ended up running this higher which probably lead to my issues, fuelling was fine, final before I put my car back to stock was something like 230bhp and 270lbs torque, which is plenty in a ~1135kg shopping trolly, so if you fancy more from your Abarth it does do something, key thing is fuel quality with these, they aggressively pull timing

image001.png




DTE show the Yaris dynoing at the figures the exhaust guys are getting stock, also shows where the plugs are.



I might be over analysing but you can see a big torque dip down low with the tuning box which tells me the ECU detected something it did not like and pulled timing, thats only issue with tuning boxes, if turned up too high they can ruin the power / torque curve and have the ECU pulling timing or boost if its a bit aggressive.
 
Some odd stuff on the stock dyno, I'm mean what happens at 5.8k? nevermind the tuning box but a dyno run with fuelling will give you a good idea what the story is, haven't really got a bad word to say about them personally, I'm coming upto 100k in this Punto that I've utterly spanked through its life, no issues apart from the mentioned turbo (expected) and short clutch life (also expected, most of my events include many full bore standing starts in a day, Yaris would be awesome for this :D ) box came off when I retired it from motorsports in favour of the Mazda mind you but had done a good 60k on it.
 
Sounds good, is that the straight through system? No silencers? Is it a case of keep the old one for MOT time or are they not really that strict? I guess it’s a 3 year wait regardless now.
 
Looks like it's going to be a menace in A3 southwest hill climb and sprint scene, 1.17.xx lap at Combe is top spot pace, this is the class my Mazda is in, small turbos cause me a headache, I have no boost :( I have taken many scalps though :D

Some 1Bs and a mild map in the right hands could get class record I reckon, might manage it stock due to launch advantage at the Great WesternSprint.

 
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I'm.not surprised that a lighter car with good power and adaptable 4wd can beat a fwd hot hatches or a 25 year old celica weighing about 200kg more and having less bhp

There is a guy who races Celica's in some classic 90's racing series and does 1:15 laps round castle combe. (You would expect Plato to be even quicker) The Celica they used in the video was an original press car (JC tested it back in the day) and pretty standard. Something resto modded would be a lot more honest.
 
There is a guy who races Celica's in some classic 90's racing series and does 1:15 laps round castle combe. (You would expect Plato to be even quicker) The Celica they used in the video was an original press car (JC tested it back in the day) and pretty standard. Something resto modded would be a lot more honest.

Yeah I mean a bit if boost and a 3sgte will be outputting 280bhp but the GR can also be boosted too soo. But anyway
 
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