Technical Fiat Bravo 1.9 8V after changing 5-geared manual transmission to 6-geared going poorl

[Antonio781]

Fiat Bravo 1.9 8V after changing 5-geared manual transmission to 6-geared going poorly

So I’ve changed my transmission as the title states from 5-geared to 6-geared and after changing it the car started going worse.

The problem is actually in the 4th and 5th gear, the first three are great and the car is a monster but as soon as I change to 4th it loses all power.

It gets around 50 grams of fuel when normally it gets around 80 so basically it does not get the boost it should get

I put a new repaired turbo up there and new pipes for the intercooler.. I’ve tried everything and cant find the problem
The car also has a tune on him so he has around 150 hp

Thanks for any help

 

[Paolo77]

good evening friend,i can say it's very strange,beacause the geared manual doesn't break ,i have the same model ,i mean 1,9 mjet 8 v.in my country there is no case,
only difference will be transmission main to the right.