hodge Posted February 2, 2011 Share Posted February 2, 2011 I've just been having a look on Supraforums and in the for sale section is a built stroker kit by Sound Performance. It's a 3.2 stroker kit but is advertised as being built in an N/A block so the oil pressure would be higher due to it not having oil squirters. Now my questions are, why would they want to use an N\A block. Are the squirters a benefit to living the bores and would it effect the oil pressure that much. Thanks John Quote Link to comment Share on other sites More sharing options...
Graham S Posted February 2, 2011 Share Posted February 2, 2011 Do the squirters not aim under the bottom of the piston rather than the bores? It seems the Yanks build all the high HP engines with NA blocks as they are better. Obviously only difference being the squirters. Depends is someone on here is willing to do a test with 2 identical blocks, and heads, 1 with and 1 without squirters! Quote Link to comment Share on other sites More sharing options...
hodge Posted February 2, 2011 Author Share Posted February 2, 2011 I can't understand how it can effect the oil pressure that much just by removing the squirters. Quote Link to comment Share on other sites More sharing options...
Graham S Posted February 2, 2011 Share Posted February 2, 2011 I know what you mean. Is there physically any difference in the NA and TT oil pumps, apart from that lug bit at the bottom, I mean internally to flow a little stronger to compensate for having to pump around further. Can't say I've looked into it that much! Quote Link to comment Share on other sites More sharing options...
hodge Posted February 2, 2011 Author Share Posted February 2, 2011 I was under the opinion that the pumps were identical. Quote Link to comment Share on other sites More sharing options...
Graham S Posted February 2, 2011 Share Posted February 2, 2011 I was under the opinion that the pumps were identical. I think they are but i'm sure someone will have a definitive answer. But the TT pump has a lip bit on the bottom so needs the sump dropping right down to get it out, where-as the NA doesn't (If I remember right!) Quote Link to comment Share on other sites More sharing options...
hodge Posted February 2, 2011 Author Share Posted February 2, 2011 Where's Chris Wilson when you need him. I'm sure he'll see this and explain soon enough. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 2, 2011 Share Posted February 2, 2011 Recent thread on the subject Quote Link to comment Share on other sites More sharing options...
hodge Posted February 2, 2011 Author Share Posted February 2, 2011 Thanks Nic. I've got my head round it all now. Thanks for the help everyone. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 2, 2011 Share Posted February 2, 2011 Interesting read on the other thread, i guess i can see the point in not wanting to use oil squirter's, however the oil pressure could be changed by running different relief valve springs, as the most loadings are going to be at higher RPM anyway. In any case, what doesn't make sense is why they just don't run external oil pumps, like they do on the big power nitro engines. Quote Link to comment Share on other sites More sharing options...
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