GR Yaris I Broke my third Transmission at track 。this time GRMN close gear set

[Diyman25]

Sorry to hear about the gearbox issues. Why didn't you go with the Cusco option ?

It was not available back then
But I get my self a set this time
Most oe part is in stock , so I should be back to track at end of month

 

[Diyman25]

This time I get lucky
Just 1-2 Syncro hub and 5-6
Gear hub failures

 

[GottGry]

This time I get lucky
Just 1-2 Syncro hub and 5-6
Gear hub failures

It seems you just got yourself some spare cogs
I like your positive attitude despite all the breakdowns you've been through

 

[Diyman25]

Some of remain of GRMN gear hub
Fail at exactly same place

 

[Diyman25]

Since I am using bigger high flow turbo
To reduce turbo lag I will use GRMN gear set with Cusco hub
Transmission should be back to one peace nextbweek
Car should be ready to testing at end of Month

 

[SR3RAD]

I shift firm and smooth and use carbon clutch to reduce the shock to transmission
Is clearly the design issue from Toyota
Mighty 1.6 engine but transmission can’t match it if to use in extreme time attack

Why are you wearing flame proof gloves with non flameproof arms?

 

[Diyman25]

Why are you wearing flame proof gloves with non flameproof arms?

For viewing purpose
Neon yellow is much easier to see

 

[Diyman25]

It seems you just got yourself some spare cogs
I like your positive attitude despite all the breakdowns you've been through

In order to be competitive racer
Alway think on positive side

 

[Gazooracingyaris]

I just wanted to add too, thanks for updating this I'm watching closely. I hope you find a solution.

 

[Diyman25]

Transmission is back together
along with GCG Hybird turbo And arp head stud
Shop suggestion crank up maximum TQ like 480nm plus
At first I was like no….
But he explained it , if Cusco hub don’t hold up at first few lap , I need to know this right away so can have new plan asap
That make sense

 

[Diyman25]

I think my GR Yaris live one of hardest life
But when shop tear it down
Engine still look in mint condion
Install back in reserve with arp head stud and new performance head gasket， car should be ready for Dyno next week

 

[Diyman25]

New GCG Hybird turbo
120whp more then stock on flex fuel
But pretty response
My Gr Yaris turn into a pocket monster now
With almost 500BHP on flex fuel, around 450 on pump gas

Car surrive Dyno
And 300km of street driving with some pull
Will test at track this sat , a bit nervous
Because GRMN gear set + Cusco hub
Should be one of strongest Syncro transmission. For GR Yaris….,

 

[Orion]

Wow! So glad to see the excellent engine condition!

How many street/track miles have you done with the car?

 

[Diyman25]

Wow! So glad to see the excellent engine condition!

How many street/track miles have you done with the car?

Engine condion look great
I probably did 12-15 track event per year
So almost 50 track day ,
the worse enemy for this emgine is human miss shift ….

 

[Gazooracingyaris]

Will test at track this sat , a bit nervous

How did it go???!!!

 

[banzai2]

Maybe ask xtrac for a suitable gearbox?

 

[Diyman25]

No issue with transmission yet
now all seen to hold up well

 

[Sekred]

Your still running the OEM pistons.
I will be interested to see if they survive at 450-500 BHP.
I wish you all the luck and I am not being sarcastic.

 

[Diyman25]

Some onboard of that day
E50 Flex fuel close 500NM at front wheel

 

[doabackflip]

I was wondering how the gearbox boys are getting on, @gazYar / @Diyman25 ?