What is true max top end speed with 502 mpi 415hp motors and gill exhaust expected. 25pitch 3 blade mirage props Thanks for honesty.

I have a 303 with same power stock exhaust. runs 73 every time best of 76, both GPS numbers, I would think the 336 would be 2/3 mph slower because its heavier

thankls what props

I'm spinning21 mirage's but I also have 1:36 drives, I'm planning on playing with props next year, want to try some 23 mirage plus's and 22 4 blade's as I'm at about 5200 r's want to knock that down a bit

My boat runs almost exactly the same as Sam's. I'm running 425's with labbed 24 bravo's through 1.5:1 drives at 5300-5400 rpm. I would say you should see 68 to 72 mph since the boat is a bit heavier and longer.

stock 415's 70 with mirage +...now well ill say alot faster with the massaged 600sc's...

Anyone running Hydros IV? or tried them compared to B1's? heard good things and i just bought two at 24p 330hp 292 SRi, waitin on them...also heard from my prop guy, which i never heard before using a LH prop on starboard motor, RH prop on port and switching shift cables will give it 3-4 more top end, though horrible backing up and some blowout on hard turning...wonder if anyone tried this metod? i have my drives/props in.