Michael Knight
Totally Hooked
Its pricey but good item. Bit difficult to install as fitment is so tightThanks for the informative reply. I think you may have convinced me to get the Forge carbon fibre one
GR Yaris Air intake
- Thread starter sanjay
- Start date
GR.KEV
Dedicated member
Will let you know the results over the next few weeksThanks for the informative reply. I think you may have convinced me to get the Forge carbon fibre one
GR.KEV
Dedicated member
Michael Knight
Totally Hooked
Hard to say really but at least IAT's are cooler. Best kit if you want cooler air with stock airbox.What u think to it?
Can u feel a difference?
Helmut Eder
Devoted member
My PETG printed Parts don't change their Form in the last 18 Month! 
Helmut Eder
Devoted member
Helmut Eder
Devoted member
Expensive ! If you want the one who fits on the Stock Air Box you can get one for €50
You can always ask for free!
18 months, while a good time, isn't anywhere near the liftime Toyota had in mind. So my comment should be seen in ~10 year perspective of possible plastics degeneration and has nothing to do with keeping short term shape.My PETG printed Parts don't change their Form in the last 18 Month!
I just installed the Forge carbon intake upper box with filter and the carbon inlet dukt.
First startup after the car had a couple seconds of the hiccups. Was that just random? The turbo intake shouldn’t affect idle? I also felt as though the boost dial stopper a little bit before it used to before? I follows instructions to the point. Everything without anything going wrong. Is it possible to duck up such an easy install?
Hopefully this is just my paranoia and nothing to worry about.
I’ll attach a some a screeny from a video shot by my wife holding the phone inside the steering wheel. The run is done on a closed road to a power plant. Safest I could find and hopefully won’t start a whole thing about reckless driving.
Does the boost dial stop earlier than stock?
First startup after the car had a couple seconds of the hiccups. Was that just random? The turbo intake shouldn’t affect idle? I also felt as though the boost dial stopper a little bit before it used to before? I follows instructions to the point. Everything without anything going wrong. Is it possible to duck up such an easy install?
Hopefully this is just my paranoia and nothing to worry about.
I’ll attach a some a screeny from a video shot by my wife holding the phone inside the steering wheel. The run is done on a closed road to a power plant. Safest I could find and hopefully won’t start a whole thing about reckless driving.
Does the boost dial stop earlier than stock?
GRandemakina
Dedicated member
that reading (@boost gauge) seems as far I've ever seen mine...
PS: mine is stock, with just the front Forge air intake carbon (not the top air box)
The Forge Carbon upper box uses a larger diameter pipe where the MAF sensor sits. This sensor is used to calculate the flow of air entering the engine, based on the air speed, air temperature and a known cross section - which you have now changed. So the engine is a ingesting more air than it thinks, making the engine run a bit leaner (=higher AFR) which renders some additional power (=quoted 13hp). The ECU still has the lambda sensor to sense the AFR and shouldn't let it go crazy lean. But still an added risk there.
Just after changing, the ECU might be a bit confused and need to adapt. If it behaves driving more then you shouldn't worry. Personally I would still like to log the engine just in case, but that's me, most probably it's fine.
If you really don't get proper boost past 4000rpm, the vacuum hose to the lower airbox flap is perhaps not connected properly or leaking.
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GRandemakina
Dedicated member
As OneHP mentioned, IF(?) the MAF tube is of different diameter (in comparison to oem) it may mess things a bit... usually bigger diam will lean-out the mixture and smaller: richer. But the ECU should have ways to adapt after a while.
Regarding the lower-box flapper... mine is removed entirely (including the solenoid vaccum actuator + lower box inner insulation) without any issues.
Just need to plug the vacuum hose then.
Cheers fellas! I went to get a take-away pizza a bit later. Opted for the pepperoni and pineapples. Pizza did the job. 9/10.
Also the car had no hiccups and it felt like before. Let’s agree the ECU got confused for a second
Cars going for a yearly service on a month. Can ask them to log/check!
Truly appreciate both your insights!
Also the car had no hiccups and it felt like before. Let’s agree the ECU got confused for a second
Cars going for a yearly service on a month. Can ask them to log/check!
Truly appreciate both your insights!
Experiencing loss of boost. On second gear acceleration my boost didn’t go past +1 which is a first. Googled the causes and so will check. Maybe I’ve been too careful with the clamps on the hoses. Manual said to not tighten to much to not crack the carbon, but what does that mean exactly. Don’t have tools to see nm in tightening.
Great news fellas!! The MAF sensor is held in place by two torq’s bolts. They need to be carefully tightened.
I just checked them today and they were coming loose. So I took a torq-bit and using two fingers tightened them again. On the second bolt the whole mounting cracked and came loose. So either I have superhuman strength or the mountings is way to fragile.
I can’t drive with air coming in after the filter so the car is basically scuffed. Will need to remount original box and return the broken one. Should be a warranty thing, right?
I just checked them today and they were coming loose. So I took a torq-bit and using two fingers tightened them again. On the second bolt the whole mounting cracked and came loose. So either I have superhuman strength or the mountings is way to fragile.
I can’t drive with air coming in after the filter so the car is basically scuffed. Will need to remount original box and return the broken one. Should be a warranty thing, right?
That is not great news. Is your name Thor by any chance?
