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Search: Posts Made By: blue thunder
Showing results 1 to 14 of 14
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Forum: Do It Yourself, Boating on a Budget
01-07-2011, 06:39 PM
Replies: 90
Views: 38,999
Posted By blue thunder

I think he said it ran for many hrs on the...

I think he said it ran for many hrs on the original build then only breakin till this.
Forum: Do It Yourself, Boating on a Budget
01-07-2011, 04:59 PM
Replies: 90
Views: 38,999
Posted By blue thunder

If his combo ran well prior to the rebuild for...

If his combo ran well prior to the rebuild for many hours, the issue is most likely something along the line of Jeff31s head gasket thought, other overheating prob or something in the tune related to...
Forum: Do It Yourself, Boating on a Budget
01-07-2011, 10:54 AM
Replies: 90
Views: 38,999
Posted By blue thunder

Based on the cc of domes, heads stated (116cc?)...

Based on the cc of domes, heads stated (116cc?) and head gaskets I'd estimate a static comrpression of 9.75-10:1. This assumes the deck height at .010".
Forum: Do It Yourself, Boating on a Budget
01-07-2011, 06:25 AM
Replies: 90
Views: 38,999
Posted By blue thunder

Ditto everything Jeff said. Plus check the sea...

Ditto everything Jeff said. Plus check the sea pump. Cooling was probably the issue.
Forum: Do It Yourself, Boating on a Budget
01-05-2011, 06:36 PM
Replies: 90
Views: 38,999
Posted By blue thunder

That one piston is gone, bummer. How does the...

That one piston is gone, bummer. How does the cylinder wall look?
Forum: Do It Yourself, Boating on a Budget
01-05-2011, 11:16 AM
Replies: 90
Views: 38,999
Posted By blue thunder

I think you can make them live as is, you will...

I think you can make them live as is, you will just need to tune appropriately. Richer 12afr, less timing 31-32 and make sure the cylinder heads stay cool as possible. Alum heads would also be a...
Forum: Do It Yourself, Boating on a Budget
01-05-2011, 09:57 AM
Replies: 90
Views: 38,999
Posted By blue thunder

I think he said he was running aviation fuel in...

I think he said he was running aviation fuel in some percentage. We would need to know the cc of the heads to know if the domes were too much. I run -12cc pistons with blowers.
Forum: Do It Yourself, Boating on a Budget
01-05-2011, 06:06 AM
Replies: 90
Views: 38,999
Posted By blue thunder

I love it. What a wealth of information I never...

I love it. What a wealth of information I never knew. Carryon seahorse :coolcowboy:
Forum: Do It Yourself, Boating on a Budget
01-04-2011, 07:50 PM
Replies: 90
Views: 38,999
Posted By blue thunder

Any other damage? Things look ok from the pic...

Any other damage? Things look ok from the pic but its hard to tell. Sucking water back in from a bad exhaust seat will cause detonation too.....
Forum: Do It Yourself, Boating on a Budget
01-02-2011, 07:13 PM
Replies: 90
Views: 38,999
Posted By blue thunder

Get the piston to exact tdc center and use a...

Get the piston to exact tdc center and use a depth gage. Take 4readings 90* apart and average the values making sure the piston does not rock. This should get you close and assumes you have flat...
Forum: Do It Yourself, Boating on a Budget
01-02-2011, 01:45 PM
Replies: 90
Views: 38,999
Posted By blue thunder

And the lower the number you can achieve without...

And the lower the number you can achieve without valve to piston issues the better the anti detonation characteristics produced. I run 9.5:1 compression with 5 psi boost on 93 octane with...
Forum: Do It Yourself, Boating on a Budget
12-29-2010, 05:56 PM
Replies: 90
Views: 38,999
Posted By blue thunder

It is my opinion that going to a .060" thick head...

It is my opinion that going to a .060" thick head gasket will cause you detonation. A proper quench area between the piston and head is a big contributor to preventing detonation. Quench should be...
Forum: Do It Yourself, Boating on a Budget
12-28-2010, 01:23 PM
Replies: 90
Views: 38,999
Posted By blue thunder

220f water temp would be a major red flag :eek:

220f water temp would be a major red flag :eek:
Forum: Do It Yourself, Boating on a Budget
12-25-2010, 09:11 AM
Replies: 90
Views: 38,999
Posted By blue thunder

Detonation causes loose plugs. How old was the...

Detonation causes loose plugs. How old was the gas?
Showing results 1 to 14 of 14


 
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