User Tag List
Results 16 to 19 of 19
Thread: 300 and 250HP HPDI heads
-
01-15-2020, 07:15 AM #16
Sir you are most definitely correct. both the 250 and 300 have 6 petal reed cages and the 300 has the water cooled front half.
300HP is way more power than I need on my little 22ft fishing boat, however with the parts I have I plan on using the 250 block, 300 front half (no machining required, 300 block needs boring and new pistons, save that for another time)
300hp heads. This should produce a solid 250+hp which is more than adequate for me.
Do you guys know if the cranks can be welded and reground? One of my cranks has some indentations from rust on the #1 journal, big enough to cause an issue but could be easily repaired.
Hopefully there will be enough left over parts to create a spare short motor.
I was studying the front halves and the 250 manifold can easily be converted to water cooled as well. You just need the top plate and teh 2 side plates its all ready drilled and ready to. Now I just need to put a cold water outlet form the exhaust guide. drill tap and a hose barb.Last edited by 225XCL; 01-16-2020 at 03:55 AM.
Sold the old Formula 233.
Now have a 22ft Whittley Sea Legend powered by 225 Excel with Pro-V 200 covers.
-
allstock thanked for this post
-
01-24-2020, 08:54 AM #175000 RPM
- Join Date
- Sep 2017
- Location
- Collingwood Ont. Canada
- Posts
- 318
- Thanks (Given)
- 35
- Thanks (Received)
- 11
- Likes (Given)
- 91
- Likes (Received)
- 51
- Mentioned
- 1 Post(s)
- Tagged
- 0 Thread(s)
300 reed cages also have an oil groove to promote better sealing to the petal.
-
01-24-2020, 02:17 PM #185000 RPM
- Join Date
- Jul 2004
- Location
- ontario
- Posts
- 182
- Thanks (Given)
- 18
- Thanks (Received)
- 8
- Likes (Given)
- 59
- Likes (Received)
- 24
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
-
01-24-2020, 02:36 PM #195000 RPM
- Join Date
- Sep 2017
- Location
- Collingwood Ont. Canada
- Posts
- 318
- Thanks (Given)
- 35
- Thanks (Received)
- 11
- Likes (Given)
- 91
- Likes (Received)
- 51
- Mentioned
- 1 Post(s)
- Tagged
- 0 Thread(s)
Rare as Rocking Horse **** !
Similar Threads
-
Are the 250hp power heads same as 225hp?
By speedthriller in forum Technical DiscussionReplies: 6Last Post: 04-22-2014, 06:24 AM -
2006 250hp Yamaha Vmax hpdi tach settings question
By Sun Style in forum Technical DiscussionReplies: 2Last Post: 12-01-2011, 09:32 AM -
2006 Yamaha HPDI VMAX 250hp Thrust washer and hardware - Where to buy online ?
By Sun Style in forum Props, Setup, and RiggingReplies: 11Last Post: 11-09-2011, 09:39 PM