User Tag List

Page 1 of 2 1 2 LastLast
Results 1 to 15 of 24

Thread: Reliable 300X

  1. #1
    Join Date
    Dec 2014
    Location
    Swartz Creek Mi
    Posts
    7
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Reliable 300X

    What is the modification level of 2005 300X where reliabilty is diminished? And who would you have build a modified one?

  2. #2
    Join Date
    Dec 2014
    Location
    Swartz Creek Mi
    Posts
    7
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    No one? Really?

  3. #3
    Join Date
    Mar 2011
    Location
    Virginia
    Posts
    1,850
    Thanks (Given)
    13
    Thanks (Received)
    38
    Likes (Given)
    63
    Likes (Received)
    138
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    They run great stock with tremendous reliability.....probably why so few responses.
    Go Time
    2003XS GS 225 Promax/ 260 / 280
    26 Regulator twin 250 EFI

  4. #4
    Join Date
    Apr 2003
    Location
    New Smyrna Beach, FL./LOTO
    Posts
    6,606
    Thanks (Given)
    600
    Thanks (Received)
    900
    Likes (Given)
    1679
    Likes (Received)
    7082
    Mentioned
    3 Post(s)
    Tagged
    1 Thread(s)
    Todd D. here on the board has modified them a bunch, DBR and Simon have some making over 400, and there are several others. If you put a stroker crank in them, they are rumored to make 370 or so with no porting changes. If you watch the video of Kurts stroker, you get an idea of what they can do https://www.youtube.com/watch?v=7Ij-KtZ0XlA.

    Joe

  5. Likes Kcraft liked this post
  6. #5
    Join Date
    Dec 2014
    Location
    Swartz Creek Mi
    Posts
    7
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a 300x Stroker, just wondered what options and opinions of others that have been down this road.

  7. #6
    Join Date
    Apr 2003
    Location
    New Smyrna Beach, FL./LOTO
    Posts
    6,606
    Thanks (Given)
    600
    Thanks (Received)
    900
    Likes (Given)
    1679
    Likes (Received)
    7082
    Mentioned
    3 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by Bigcrazy View Post
    I have a 300x Stroker, just wondered what options and opinions of others that have been down this road.
    I think that you have it about as good as gets without going into a bigbore and then you are biting your nails worrying about rods breaking with the extra cylinder surface.

    Joe

  8. #7
    Join Date
    Dec 2014
    Location
    Swartz Creek Mi
    Posts
    7
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by JPEROG View Post
    I think that you have it about as good as gets without going into a bigbore and then you are biting your nails worrying about rods breaking with the extra cylinder surface.

    Joe
    Thank you!! This was what i was wondering about......

  9. #8
    Join Date
    Apr 2001
    Location
    Cardington Ohio
    Posts
    19,661
    Mentioned
    7 Post(s)
    Tagged
    1 Thread(s)
    I had a friend that added Simon heads and ECU for added RPM to his.

    Other than the additional R's, wasn't much there and started having issues.

    IMO, stock, might be best of the best.
    I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.


    I refuse to allow common sense to interfere w/my boat buying decisions.


    Checkmate 16' 140 Johnson
    Hydrostream 17' Vector FrankenRude I
    Laser 480 (?) 21' w/GT 200
    Glastron Carlson Conquest w/XP 2.6
    Glastron Carlson CVX 20 w/XP 2.6
    24' Sonic w/twin 250 Johnsons
    24' Sonic w/twin 250 HO Johnsons
    19' STV River Rocket w/FrankenRude II
    Allison XR 2002 w/Frankenrude II
    Hydrostream 18' V-King w/Frankenrude II

  10. Likes tux974, specboatops liked this post
  11. #9
    Join Date
    Feb 2004
    Location
    Palm City Fla
    Posts
    7,194
    Thanks (Given)
    0
    Thanks (Received)
    829
    Likes (Given)
    0
    Likes (Received)
    6489
    Mentioned
    13 Post(s)
    Tagged
    1 Thread(s)
    Lot of people say a stock 300x is a time bomb . The most reliable thing to do is buy a 300xs with wty .
    Now that we got that out of the way .

    I've fixed a few 3.0L blocks that have had holes poked thru them. Every single one of them stuck a piston . 5 said go , 1 said **** no . Guess which won the battle ?
    I sent $5000 dollars to a big name rod maker . I asked for a rod that was strong enough that when or if a piston stuck that it would just stall the motor out . Go home knock the dead soldier out of the hole , hone-n-hang a new player , fatten it up and go again . 10 weeks later they sent my money back and said "no thanks" .
    Moral of the story , don't stick a piston .
    Dirty filters and injectors , poor quality gas , or in my case getting stupid on the adjustable pressure regulator ...
    Deal with the above , and it will be very reliable .
    I have a set of red anodized heads here . Most of the removable chambers are cracked between the chamber and water side . maybe they detonated , maybe just the poor machining (stress risers) or a little of both .
    I'll have to let ya know how the new chamber design works out ..
    A 3.0L is actually an honest 3000 cc's
    A 3.2L is a little short , you have to go .015 over to get to 3200 cc's
    As far as big bore stuff goes , it it chicken bone's a rod , it wont be from piston area . It would be from sticking a piston , just like the rest . In the race car , I changed rod's every 75 to 100 passes . In the 3.4 and 3.6 L builds , I think it's wise to start with new rods . prep them as any other hi-stress part . Take advantage of the gucci friction reducing coatings that are out there , and replace them along with rod bearings , and a new top ring every 300 hours , and enjoy an "honest" hold it WFO for miles 375+ HP powerhead ....
    We could talk billet reed blocks etc. etc. etc. ... but I gotta go open the shop in 10 minutes

  12. Likes Baja170, MeCapnDave liked this post
  13. #10
    Join Date
    Apr 2001
    Location
    Cardington Ohio
    Posts
    19,661
    Mentioned
    7 Post(s)
    Tagged
    1 Thread(s)
    Great info Chaz.
    Been meaning to start a thread on the life and times of the 300X.

    Heard plenty of the 2nd hand time bomb stories but had a friend up here buy one new and I think he told me has smart craft showed 1300 gals through it before he added the Simon stuff and started having problems.
    As I recall too it was coincidence w/the Simon stuff being screwed on but not the cause.

    I rode in his Mirage many times and thought it was the bench mark for what a lake boat could be.
    That motor just did everything right and I wanted one.
    I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.


    I refuse to allow common sense to interfere w/my boat buying decisions.


    Checkmate 16' 140 Johnson
    Hydrostream 17' Vector FrankenRude I
    Laser 480 (?) 21' w/GT 200
    Glastron Carlson Conquest w/XP 2.6
    Glastron Carlson CVX 20 w/XP 2.6
    24' Sonic w/twin 250 Johnsons
    24' Sonic w/twin 250 HO Johnsons
    19' STV River Rocket w/FrankenRude II
    Allison XR 2002 w/Frankenrude II
    Hydrostream 18' V-King w/Frankenrude II

  14. #11
    Join Date
    Apr 2003
    Location
    New Smyrna Beach, FL./LOTO
    Posts
    6,606
    Thanks (Given)
    600
    Thanks (Received)
    900
    Likes (Given)
    1679
    Likes (Received)
    7082
    Mentioned
    3 Post(s)
    Tagged
    1 Thread(s)
    This one is a properly set up bone stocker--not too bad...I agree with Charlie that they need good clean fuel delivery and its not coming from the pump off the street. It is unreal how much moisture this pump fuel that we are being sold contains and attracks. (Do the glass jar test yourself)-

    I have a stroked version, 2 stock ones, and a stroker XS with X dressings. There is no question that I like them.

    https://youtu.be/llCUw1pScKY

    Joe

  15. #12
    Join Date
    Jun 2006
    Location
    Silverton section of Toms River, NJ/Stuart, Florida
    Posts
    10,205
    Thanks (Given)
    374
    Thanks (Received)
    314
    Likes (Given)
    821
    Likes (Received)
    1999
    Mentioned
    1 Post(s)
    Tagged
    1 Thread(s)
    You open at 9??? I thought it was 10 and close at 12 for lunch back at 2 and done by 3. Thats what the sign on the door says

  16. #13
    Join Date
    Dec 2014
    Location
    Swartz Creek Mi
    Posts
    7
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    great info guys, I love my X....when it gives up the ghost.....got a few ideas now

  17. #14
    Join Date
    Feb 2004
    Location
    Palm City Fla
    Posts
    7,194
    Thanks (Given)
    0
    Thanks (Received)
    829
    Likes (Given)
    0
    Likes (Received)
    6489
    Mentioned
    13 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by vnemous View Post
    You open at 9??? I thought it was 10 and close at 12 for lunch back at 2 and done by 3. Thats what the sign on the door says
    That's only if we like ya .......


  18. Likes MeCapnDave liked this post
  19. #15
    Join Date
    Nov 2009
    Location
    hardyville va
    Posts
    367
    Thanks (Given)
    7
    Thanks (Received)
    38
    Likes (Given)
    1
    Likes (Received)
    43
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Bigcrazy View Post
    great info guys, I love my X....when it gives up the ghost.....got a few ideas now
    I'm running a 300x stroker with .040 overbore on my STV pro comp. Also a few other tricks I stole strait from Eric. Been dead reliable so far. Can't really press the issue on the STV, though, don't turn it much over 6 bills. Still exploring the set up, and my nerve.

Page 1 of 2 1 2 LastLast

Similar Threads

  1. VRO, how reliable, what happens if it fails.
    By Smoking Joe in forum Technical Discussion
    Replies: 10
    Last Post: 06-22-2010, 10:22 PM
  2. how reliable are they?
    By venus79 in forum General Boating Discussion
    Replies: 31
    Last Post: 10-05-2008, 07:40 PM
  3. mercury mod vp reliable or not?
    By snookhooker1460 in forum Technical Discussion
    Replies: 1
    Last Post: 10-12-2007, 06:47 PM
  4. what is the hottest and most reliable v-4 omc?
    By Ronny Jetmore in forum Technical Discussion
    Replies: 11
    Last Post: 01-06-2003, 06:46 PM
  5. best reliable V-6???
    By Georgia Boy in forum General Boating Discussion
    Replies: 1
    Last Post: 08-12-2002, 11:25 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Frank Mole Transport