Like Tree0Likes

boost and a 1012 felpro head gasket

Reply
Old 08-24-2002, 01:33 PM
  #1
merlin540
Guest
 
Posts: n/a
Default boost and a 1012 felpro head gasket

how much boost have you guys ran with the 1012 felpro receiver groove head gasket on alum head blower motors. the tune up looked good but the receiver groove is trying to push out of the head on the top of the chamber. would 12psi boost cause this or do you think excessive water pressure caused this. 30 psi water pressure at 125mph with 12 psi boost. <engine is 510 gen 6 canfield 119cc head 8.5to1 static compresion cocktailed fuel about 110 octane see ya putting spare engine on dyno today to put in tonight. thanks
 
Reply With Quote
Old 08-24-2002, 02:47 PM
  #2
Registered
 
Join Date: Feb 2002
Location: LaPorte IN.
My Boats: 1997 23' WPM Cat!!
Posts: 1,296
Default

Are there any signs of detonation? Aluminum beads on the plug porcelins could mean light detonation which raises cyl pressures dramatically. Also if the exhaust valve is closing to early the cyl pressures can get high, especially at high RPM. Did anything else let go? Normally high water pressures let water get into the oil via intake gaskets. I have seen a lot of blown head gaskets on blow motors, and light detonation is usually the reason. If detonation is the culprit, the head gasket is a cheap fix compared to what could happen. If the gasket doesn't blow then something else takes the hit. Ouch$$$$
WETTE VETTE is offline  
Reply With Quote
Old 08-24-2002, 06:54 PM
  #3
bobby daniels
Guest
 
Posts: n/a
Thumbs up

I'VE USED TONS OF 1012 GASKETS AND HAD SOME DO THIS !!
MOST OF THE TIME ITS FROM NOT RETORQUE THE HEADS AFTER IT
WARMED UP AND COOLED OVERNIGHT ,THIS REALLY IS A PROBLEM WITH THIS GASKET ON SOME SET UPS ,ALSO BE SURE THE HEAD IS LOCATED RIGHT ON ,, WHEN ITS INSTALLED (NO LOOSE DOWELS ) DO LOOK FOR DETONATION THOUGH !
BUT WE MAKE 12 TO 15 ALOT WITH NO TROUBLE AND 8.5 APPROX. COMP,
GOOD LUCK JUST MY PENNYS WORTH !!!!!!!!!!!!!!!!!
 
Reply With Quote
Old 08-25-2002, 06:56 PM
  #4
merlin540
Guest
 
Posts: n/a
Default

thanks guys dynoed spare bullet yesterday made 950hp 900ft torque putting in boat tonight see ya
 
Reply With Quote
Old 08-25-2002, 07:06 PM
  #5
bobby daniels
Guest
 
Posts: n/a
Default

WHAT SIZE AND TYPE BULLET WAS THIS ?? 900 FOOT LBS ECT.
 
Reply With Quote
Old 08-26-2002, 05:25 PM
  #6
merlin540
Guest
 
Posts: n/a
Default

510gen6 canfield head hyd roller 8.5to 1 static compression
 
Reply With Quote
Old 08-26-2002, 06:53 PM
  #7
bobby daniels
Guest
 
Posts: n/a
Question

ALL I CAN SAY IS I WOULD LOVE TO HAVE THAT COMBINATION, WOULD YOU PLEASE GIVE US POOR PEOPLE MORE SPECS. RPM, CAM SPECS., THIS WOULD BE A BIG HELP WOW!!!
 
Reply With Quote
Old 08-26-2002, 09:26 PM
  #8
AKA NORTECHJ
Gold Member
Trade Score: (1)
 
SCARABJ's Avatar
 
Join Date: Mar 2001
Location: orange park fl.
My Boats: 3900 Nor-tech V
Posts: 830
Default

Keith eickert went in and added the two extra studs on the the deck over the pistons on my 509s with canfields this is suppose to cure this problem with 10 to 15 pounds of boost we will see. they are going back togther this week also i think the gasket he uses is the 1047? cant remember. procharged stage three 10 to 12 psi gen 5 502 blocks. good luck
SCARABJ is offline  
Reply With Quote
Old 08-27-2002, 06:45 PM
  #9
merlin540
Guest
 
Posts: n/a
Default

thanks
 
Reply With Quote
Old 08-27-2002, 09:45 PM
  #10
Registered
 
Turbojack's Avatar
 
Join Date: Sep 2001
Location: Houston, TX, USA
My Boats: 2003 Eliminator 30' Daytona
Posts: 2,285
Default

I would say you had motor in detonation. I remember I had that same problem a number of years ago. When I would tear motor down after melting/breaking a piston head gaskets would look like that. I do not think water pressure had anything to do with it.

Why did you go with the canfield heads, instead of the dart or ??
Turbojack is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
502SCS
General Q & A
3
07-31-2006 02:57 PM
BajaRunner
General Q & A
1
07-10-2006 04:05 PM
KCHOTBOAT
General Q & A
6
12-04-2003 02:21 AM
traviss
General Q & A
6
12-06-2002 07:35 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 05:38 PM.


Copyright 2011 OffShoreOnly. All rights reserved.