This is sparked by another thread..

My questions is, what transmissions have the best advantage for boost?

the b16/del sol vtec/type r have the shortest gear ratios wich is usually the best for NA but wouldnt you get massive wheelspin with boost?

is the LS tranny's gearing too far apart? will you drop out of boost after a shift?

Im still debating on what engine to use too, so all advice is welcomed.

 

hehe u gon get a tranny now joe?

 

lol eventually.
i just think the jdm b16 gears are WAY too damn short for a 300hp motor.

 

Boost isnt like vtec. You only drop out of boost if you let off the gas.

 

this is why im asking
ive dont know first hand experience with an ls tranny
if my turbo dosent fully spool till 4300 and when i shift if it drops to 4000
then i would be out of boost
correct?

 

no. as long as you dont let off the gas then you are still "in" boost.
Once you let off the gas, and the BOV opens, any boost you have built up
will be gone and you will have to start over, and yes at that low of an rpm
it will take longer to build back up.

 

ok then.
wich tranny would you reccomend for a high 11 low 12 second car?
probably a built b20 or built b16.

 

gsr or itr
if its a b16, DEFINITELY the itr

 

well its a jdm b16 so the gearing is the same as an ITR tranny (just no stock lsd)

 

i woudl love to get some hydro b16s they prefect app for me.

 

what about boosting a b18c5, should i just stay with itr tranny?

 

not true, that depends on the size of your turbo and how much it flows, smaller turbos WILL drop off on you.

Rob

 

never mind i just saw your other post on me

Rob

 

You can always adjust gearing by going with a taller or shorter wheel/tire.

 

true but i would like to have my spedometer accurate while driving on the street