What kinda Numbers ?
#1
Registered
Thread Starter
Join Date: May 2007
Location: Baltimore MD
Posts: 46
Likes: 0
Received 0 Likes
on
0 Posts
What kinda Numbers ?
Well I going to run a set of blower motors in My 85 302 Im running trs drives and straight through hull exhaust We figure The motors will be pushing between 550 and 600 hp a peice I have only had this boat for a about 4 months that I could run it I figure on running a 25 to 26 pitch prop? What kind of top speeds do you think Ican get out of her in ideal conditions?
#4
Registered
Join Date: Aug 2002
Location: Eastern Lake Ontario
Posts: 2,896
Likes: 0
Received 3 Likes
on
3 Posts
Sorry you didn't get more input. I'm surprised, usually everyone has an opinion.
Personally, I run stock so I don't consider myself qualified to guess at possible speeds. Where's Axa, he'll have thoughts.
ttt
#5
Gold Member
Gold Member
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,636
Likes: 0
Received 209 Likes
on
133 Posts
if you have a true 550-600 hp it should run around 76-78 GPS. with a 25P 3 blade.
My friends 311 had around 580-600 hp and we saw 80 once, mostly ran 78-79, all GPS readings
That was with 25P labbed mirage props, TRS boat.
I thinka 302 is a slight tad lighter then a 88 311 so you may have a small advantage there.
My friends 311 had around 580-600 hp and we saw 80 once, mostly ran 78-79, all GPS readings
That was with 25P labbed mirage props, TRS boat.
I thinka 302 is a slight tad lighter then a 88 311 so you may have a small advantage there.
#6
Registered
Biil Formula: I Dont Know If This Helps Or Not, But My 83 302 Has Seen 90 Gps In Fresh Water. 420,s Worked Over A Bit With 250 Blower Shop Blowers On Then. 1 Dynoed At 595 The Other At 615. The Only Difference Is I Am Running Kaama Surface Drives. Maybe This Will Shed Some Light On Your Project. Good Luck Bruce
#8
Where To
VIP Member
Join Date: Nov 2001
Location: Alexandria Bay, NY 1000 Islands
Posts: 2,517
Likes: 0
Received 3 Likes
on
3 Posts
I'm going to say with the right labbed props and the motors on their best tune, and everything perfect 75-78 mph.
Let us know!
Dave
Let us know!
Dave
__________________
Air, Sea, and Land...Exploring the planet in 3-D!
Air, Sea, and Land...Exploring the planet in 3-D!
#10
Registered
Join Date: Oct 2005
Location: Lake of the Ozarks MO
Posts: 356
Likes: 0
Received 0 Likes
on
0 Posts
Question: Have you done anything with the transmissions? There will be a certain amount of Hp loss to contend with using stock transmissions over reworked ones. My thoughts,