Gearbox Swap Dilemma !

[DamirGTI 342]

Right i'm after a recommendation for gearbox choice for tuned 8v engine .

Last few years i have an 405 Sri box bolted on (identical as 1.6 “close ratio” box) and it's been nice so far despite a bit long 4-th and especially 5-th which totally dulls performance (on the long straight road i.e. motorway ..) .

 

Since the engine is modified (head job , high CR and some other bits and bobs ..) i dunno if it will be better perhaps with lower ratio box such as 1.6 item , the engine has loads of torque all over the rev band and it spins right up to the rev limiter far more faster than before when it was standard .

 

Except this Sri box I also have : BE3 1.9 8v and early BE1 1.6 box .

 

Now i've never properly driven 1.9 8v engine with std. 1.9 box so I dunno how long it actually is when compared with the 405 Sri box when fitted on the same engine ?! ..

 

Anyone tried 1.6 box with 1.9 FD ?!

 

Thanks

Damir

[mattbenselin 0]

All this would do would make a 1.9 box with shorter first gear, the rest of the gears are the same between 1.9 and 1.6 boxes with the exception of second which I think is 1.88 for 1.6 and 1.85 for 1.9 so very closely matched.

 

I find standard 1.6 box great fun, and easily bareable on the motorway. it pulls well in every gear including 4 and 5!

 

Maybe try and find an Mi16 box if you want a real compromise between 1.6 and 1.9

Edited May 12, 2009 by mattbenselin

[pug_ham 244 3 Cars]

As above, I have a mildly tuned 1.9 which sounds very similar to yours performance wise & I'm running the 1.6 gearbox which is great fun & ideal for any road off the motorway.

 

Only thing I'm considering is swapping is for a 1.9 first but its not really needed as I have a quaife atb so it takes off well with very little wheel spin in all but the wettest conditions.

 

Other than that I've got bits for changing to a different box mostly based around a 1.6 GTI one as mentioned in this topic.

 

I think an Mi16 / S16 gearbox would be to low in first thru third for use on a 1.9 engine.

 

Graham.

[DamirGTI 342]

Ok. then i'll try 1.6 box again i had 1.6 box before for a few years but then the engine was std. without any mods , so dunno maybe it could be better now

 

Anyway , i must replace one synchronizer on that 1.6 box first

 

Thanks for info Graham !

 

Damir