Ah, that was not the answer I was hoping for. Is it only third gear that is the weak spot?
Or do you have to change the whole gearset to make it hold some power?
You're already well into "gearbox is a consumable" territory there. A billet plate will either make it (effectively) 1% stronbger or make it last one more pass. At some point you'll probably tear 3rd gear into small chunks and regret all the life decisions that came before it.
I thought it could be an issue because the standard plate was flexing when stressed.
Maybe the original gear set will hold a bit better without flex?
Last time on the dyno it made around 670nm at the hubs. Now it have bigger turbo and better intake but have not been on a dyno yet.
The car is being used from family trips to drag race events. So the shifts can be a little violent.
It is grinding if I shift to fast so was thinking I should overhaul it soon.
From the factory on RB26s there's a fitting on the intake manifold collector/"plenum" that provides pre-throttle boost signal. That's how they did it back in the day, I figure it's fine to replicate it.
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