Favorite BBC Rod Thread
12-10-2014 | 11:37 AM
#81
Gold Member
Joined: Oct 2005
Posts: 11,692
Likes: 217
From: Olmsted Falls,Ohio Marblehead,Oh
i don,t think he means bent because he stated that detonation causes the piston to TWIST.back in my racing days i met a lot of nitrous guys who would push it past the limit.serious detonation can ruin an engine in less than a second.one time a guy took the head off and it and what was left of the piston looked like someone was in there with a torch but no TWISTED rod.
12-10-2014 | 12:24 PM
#82
Platinum Member
Joined: Jul 2008
Posts: 931
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From: Little River SC
That was surely a "rookie build" if those were 6.385 rods, trying to figure how the counter weight, scrubbed the piston. What is the compression height of the piston ? 540 CID build; correct ? Using a 6.385 counter weighted crank, with a 6.135 rod and trying to have a taller C.H. on piston, to bring piston up to -.025 D.H.
12-10-2014 | 12:38 PM
#84
Gold Member
Joined: Oct 2005
Posts: 11,692
Likes: 217
From: Olmsted Falls,Ohio Marblehead,Oh
That was surely a "rookie build" if those were 6.385 rods, trying to figure how the counter weight, scrubbed the piston. What is the compression height of the piston ? 540 CID build; correct ? Using a 6.385 counter weighted crank, with a 6.135 rod and trying to have a taller C.H. on piston, to bring piston up to -.025 D.H.
1-crank is 4.375 stroke
2-rods are 6.385 never measured them but the paperwork said they were that Dave gave me.
3-pistons say for 540 kit
the pistons were at least .020 out of the hole, blocks 4.5030
I have no clue how you can build the rotating assembly and have it hit piston skirts, how the hell did he rotate it?
this is the guy, look at his garage if this works, thats enough to tell me bad news... I have no idea why my buddy went to him...
https://www.facebook.com/profile.php...774194&fref=ts
Last edited by Full Force; 12-10-2014 at 12:42 PM.
12-10-2014 | 12:43 PM
#85
Gold Member
Joined: Oct 2005
Posts: 11,692
Likes: 217
From: Olmsted Falls,Ohio Marblehead,Oh
12-10-2014 | 12:55 PM
#86
Registered
Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
12-10-2014 | 01:52 PM
#89
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Joined: Jul 2008
Posts: 931
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From: Little River SC
Honestly I still have no clue what this guy did...what I have found out so far (hence starting with all new parts and none of this used again)
1-crank is 4.375 stroke
2-rods are 6.385 never measured them but the paperwork said they were that Dave gave me.
3-pistons say for 540 kit
the pistons were at least .020 out of the hole, blocks 4.5030
I have no clue how you can build the rotating assembly and have it hit piston skirts, how the hell did he rotate it?
this is the guy, look at his garage if this works, thats enough to tell me bad news... I have no idea why my buddy went to him...
https://www.facebook.com/profile.php...774194&fref=ts
1-crank is 4.375 stroke
2-rods are 6.385 never measured them but the paperwork said they were that Dave gave me.
3-pistons say for 540 kit
the pistons were at least .020 out of the hole, blocks 4.5030
I have no clue how you can build the rotating assembly and have it hit piston skirts, how the hell did he rotate it?
this is the guy, look at his garage if this works, thats enough to tell me bad news... I have no idea why my buddy went to him...
https://www.facebook.com/profile.php...774194&fref=ts
Not the best combination for a 4.375 crank in a 9.800 deck block
12-10-2014 | 01:55 PM
#90
Thread Starter
Fast Singles Club
Joined: Oct 2011
Posts: 4,042
Likes: 491
From: Raystown Lake , Pa.
That's what happens when you get old right SB . 
http://www.offshoreonly.com/forums/a...d-bent-rod.jpg
http://www.offshoreonly.com/forums/a...d-bent-rod.jpg
Last edited by the deep; 12-10-2014 at 02:16 PM.
