2.5 tuner options 1993 245's

[eli]

have 2 1993 245's i,m redoing the motors this winter ,always thought about the tuner what are options ?

[90 5.0]

Those came with pretty good tuners already, I'm not a tuner expert but I think the only real better option is the diamond custom tuner, but you'll need to send them your exhaust adapters to be port matched.

[Dave Strong]

Just port match the tuner to the adapter, adapter and block.

Dave

[eli]

thanks guys that settle's that issue

[Mike Nass]

What Dave said...

[eli]

so permission to get out the die grinder,dont tell the wife lol

[Mike Nass]

don't forget you want match the plate and gaskets as well... that is 5/6 surfaces... Block, gasket 1, plate, gasket two, exhaust plate AND, the transition from the plate to the tuner...

[David]

Would that apply to a Promax 225 as well?

[eli]

got plenty of time to get all that done we dont boat for 7 more months around here since april is still winter transition month

[Dave Strong]

Would that apply to a Promax 225 as well?

Yes

Dave

[tux974]

Depending on what plate you have early 1/2 or late 3/4 water tube the later had 2 tuner bolt patterns and came with the later, stronger, thicker mounting flange tuner which held up much better.
No big deal on performance, maybe a bit more up top (maybe) it is just a stronger tuner.