Mercury 300 promax

[Burty]

Originally posted by Cyco


Have you fitted trim tabs?

Nope

[Lars T]

Pup - have you ever had it in the water??
Does your setup even work?
What sorts of speeds have you seen with your "monster" on the back..?

[RossM]

Originally posted by sinkunit0
[and 355 hp

whats been done to it thought eric simon was getting about 335 [/B][/QUOTE]
he is, we have a wayne taylor engine though

[RossM]

Originally posted by Cyco
Good luck with that on your P20
You will only use the extra power on very flat water, any other time an XR2 or a 200 would have been ample

Have you fitted trim tabs?

nope havn't fitted tabs dude, dont need them !!

[RossM]

Originally posted by Lars T
Pup - have you ever had it in the water??
Does your setup even work?
What sorts of speeds have you seen with your "monster" on the back..?

#1: yep!
#2: YEP!awsome handling!!! even in the rough stuff,
we can go 4 and 1/4 inch below if we need to and we diddnt have to cut the transom!!
#3: 94 mph so far bit was abit too choppy!!

[Gav]

Originally posted by PuppiesBalls

#3: 94 mph so far bit was abit too choppy!!

KINNEL!!!! GPS or searay speedo?

[RossM]

12% slip over max revs /ratio/pitch/bla bla bla

[Gav]

Originally posted by PuppiesBalls
12% slip over max revs /ratio/pitch/bla bla bla

so was it 94mph on the wet stuff? or 94mph calculation on a laptop in the bath?

[Captain Chaos]

Pups and I have a £10 bet that it'll not make 350hp on a dyno and another £10 that it'll not make it past 100hrs

[RossM]

Originally posted by Gav
so was it 94mph on the wet stuff? or 94mph calculation on a laptop in the bath?

on water dude! it CAN rev upto 7500 thats it at only 6800 rpm

[Matt]

Without an explosion, or a rebuild?

Originally posted by Captain Chaos
£10 that it'll not make it past 100hrs

[RossM]

Originally posted by Captain Chaos
Pups and I have a £10 bet that it'll not make 350hp on a dyno and another £10 that it'll not make it past 100hrs

oi nobba stop changing it!!!!!
you originally said the bet was that we would have the stock fuel system back on after 2 months ! (thats what i agreed on)
then after the second (flawless) outing you managed to blag the engine last 50 hours which we discussed that there was 45ish hours to go, now you have changed it to 100 hours,
dodgy sod

[roofer]

Originally posted by Captain Chaos
Pups and I have a £10 bet that it'll not make 350hp on a dyno and another £10 that it'll not make it past 100hrs

I'd be surprised if it makes 350hp but they reckon the promax will do a 1000 hours before a rebuild, Simon motorsports gives a 1 year warrenty with his engines.

[RossM]

Originally posted by roofer
I'd be surprised if it makes 350hp but they reckon the promax will do a 1000 hours before a rebuild, Simon motorsports gives a 1 year warrenty with his engines.

its not a simon motorsports engine, simon has less compression, non drystacked , standard reeds, no adjustable timing mount thing and revs to a max of 6800
Wayne Taylor told me that if the engine had 150 psi compression then it will have 355 hp,

[roofer]

So what size prop you using?

[RossM]

Originally posted by roofer
So what size prop you using?

the 26 yam, wiked prop!! cheers buddy.
gear ratio 1.615

[roofer]

Thats 9% slip according to my calculation, Ive got a 29 hydromotive 4 blade prop you can try if you want, worked well on my 300

[RossM]

does it have the same characteristics as the yam prop because that seems the perfect prop for our boat .

[roofer]

Originally posted by PuppiesBalls
does it have the same characteristics as the yam prop because that seems the perfect prop for our boat .

Dont know never tried it on a mono hull. Your pm box is full, send your yam prop to get pitched up a size at prop revs.

[RossM]

we had concidered doing that but to re pitch a prop can make unwanted bowlift and in what seems like a prefect prop for the application it would be ashame to fek it up.
i have deleted a p.m
Matt is there anyway we can upgrade our inbox?150....200 messages?
what type is the prop bow lifter, stern lifter or what