What is the X dim then????

Well, no one else is tell'n ya so I guess I will.
There has been alot of talk on here about spacer's on the 25s and I believe Gordo(the resident 25 guru) has said many times that they do no good. I would PM him he is the man for 25 set up's.

Gordo says the Extension box does no good. I beleive he has a high X-dim. I think its 19.5", that is the most alowed by APBA.
Now a std. length Bravo is 21.5", from crank to prop center line(c.l.), so his prop depth is 2". I cant remember if he runs a shorty. What ever he has is going to be a good starting point, he has tried everything. I have an extension box so my info won't help you.

You need to find your X-dim. Crank c.l. to keel/bottom of boat. I have heard some 25's have 17.5" X-dim. if this is the case use the -2 to get a 2" prop depth. I am pretty sure all of this is correct. Good luck. Im sure Gordo will chime in at some point, but that could take a while.

following the keel out even with gimbal, crank center line 15.5". Or 7" from bottom of gimbal to keel. Did Pat set all Tantrum dim. different for customer purpose? Or just the all out race version.

di(k!

ya think?

I know!

Actually this thread is named after him....."-2 shorty"

now thats funny