Jim Darr names
#742
Registered
Joined: Oct 2009
Posts: 1,134
Likes: 160
From: central IL
They posted the sheets on this thread on PBN after others asked to see the Dyno sheets...
http://www.po werbo atna tion.com/bilge/2274-55-mti-56.html#post24161
Copy and paste in your browser without the spaces since OSO blocks PBN or go to the 55 MTI thread on PBN page 56 post #1111.
http://www.po werbo atna tion.com/bilge/2274-55-mti-56.html#post24161
Copy and paste in your browser without the spaces since OSO blocks PBN or go to the 55 MTI thread on PBN page 56 post #1111.
Last edited by Plowtownmissile; 01-10-2015 at 10:47 PM.
#743
#746
Ok, been on oso for 10-11 years, i see once in a while a couple allusion to jim darr, still don t know what he did and how do you know its him when he changed names too many times according to the read... So, whats the long story short?
#747
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Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
those engines won,t live long in the boat with an a/f ratio of 12/1.dyno hero numbers but not realistic in boat numbers.you do plenty of this type engines and you know what i am saying weapon x.also you say 7 lbs boost but no boost data on the sheet?if it sounds to good to be true it usually is!in any event they should still make decent power with a safe tune.
Last edited by mike tkach; 01-11-2015 at 08:15 AM.
#749
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Joined: Jan 2006
Posts: 688
Likes: 0
From: wisconsin
those engines won,t live long in the boat with an a/f ratio of 12/1.dyno hero numbers but not realistic in boat numbers.you do plenty of this type engines and you know what i am saying weapon x.also you say 7 lbs boost but no boost data on the sheet?if it sounds to good to be true it usually is!in any event they should still make decent power with a safe tune.
#750
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Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
yes they do look good,to good.with a roots blower,7.2 lbs boost something does not add up.imo,r roots deal with 12-1 afr will create so much heat in the combustion chamber it will start pre ignition and then it,s game over.it will work for a short run but if you leg it out it,s gonna burn down.just for clarification i run my whippled 588s at 10.5-1 afr at wot.without meth injection i don,t know how that engine can produce that hp level on pump gas with those numbers.id love to put one of those engines on the dyno i use.il bet my last dollar the results will not be so impressive.



And this is on 7.2 psi
