T50 weird gear set What´s going on?

[fax0815]

Bean Bandit Wrote:I'm sorry to disappoint you but Uzelac is right. The TRD gear sets would make shifting from 3rd to 4th the same as stock (with the 3 gear set) or shorter (less drop, with the 5 gear set). The final drive ratio has no influence on the geardrop.
The only way I could explain such a behavior with a stock or TRD box is if your shifting really slow (i.e. loosing a fair amount of speed ~30kmh).
Or as he said shifting from 3rd into 5th (maybe someone fucked up on a rebuild but then I wonder what your 5th gear ratio is)

Can you tell us the speed you're doing in 3rd, 4th and 5th at the same revs (i.e. @ 4000rpm) - that way we can calculate the step ratio between them.

PS:

fax0815 Wrote:with 4,3:1
(look at the top speed )

I do the only difference to stock with same 4.3 is in 1st and 2nd gear. The drop line from top of 3rd to the intersection with the 4th gear line is the key and as Uzelac described

Still not convinced...
Definatly no granny shifting involved.

I understand what you are saying, 3-4th stays stock but due the dramatic changes to 1st and 2nd everthing gets messed up. Its a non progressive gear set, look at the rev drops on the TRD gear set, it gets bigger with shifting up, this is the kind of gearbox you find on big trucks.

The whole point in a close ratio gear box is to have a loong first gear and have all the others close together, with progressive layout i.e. Rev drops getting smaler the further you shift up, to make sure you hit the power band and the engine is able to pull away.

Thats exaclty what the other avaliabe TRD gear set looks like.

This is with 4,3 final drive, I recon first first gear will be tricky but the rest looks like what should be on a race car.

Call me fussy, but I think the final drive does have a big effect on what I described. Imagine this AE86 doesnt run the advised 5,3 ratio, for instance a 4,3 or a 4,7.

Now with the right final drive 3rd goes from 115kph to 160kph.
With the 4,3 3rd tries to pull from 155 to 210 which will take forever due all the occuring drag. Yes on the diagram it is the same but, revs will pick up even slower, making it fell bad.

I supose these diagrams were made with a 16v engine? This AE is running stock 20v without bottom end torque, compared to my 16V. I blame the missing airbox and short velocity stacks, which makes it worse cause unless you are past 5k 5.5k nothing is happening.

Does this make any sense to you?
my probelm its just as it goes nicely in the first gears and than you throw in 4th and think WTF is this sh**?

Well I understand its a bit too much "I feel" guesswork here, so I´ll gather more info of this, unfortunatly it runs a fancy instrument with no speedo and since I looked at the engine wireing, i don´t exactly trust the tacho either. but yeah I´ll try.