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#1
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The longer rods increase dwell and change the angle of attack. Essentially giving the rod more leverage to move the crank and less side loads on the pistons to their bore. It is costly for all modifications and the end result is sometimes less than one would like. I agree with your decision 100% to make it better, especially in the valve train but you need to ensure it is as reliable as possible. That was what I was suggesting earlier. If your car doesn't want to start (like my old 11 to 1 SBC) you just step out onto terra firma and give them shoes a chance. On the water it is a little more complicated. Your approaching terminal velocity..
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#2
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i agree totally im not building a race engine just trying to get a better tork range and as i said 10.5 to one was just a guess there not much info on deck hiegts when i get the bottom end together with the new pistons i will have a better idea of compression ratio i dont mind using high octane pump fuel in it at the end of the day it will still be cheaper than running a 2 strokeand if u no 2 stroke engines there pritty flat on low rpm so i cant see how a mild solid cam will afect bottom end power all the mods r to increase strenth ans reliablitiy read a few forum post on other site and some guys r having oroblems with bending pushrods too ill put some picks up of the heads and the bad condition of the vavle tips and rockers and also i read that the blocks were made by volvo
no one has yet told me if 3.7 use flat tops pistons |
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#3
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well i just changed my mind again must sound like women well i just ordered a new head edelbrock proformer I did think about what u guys said about better to have 2 aluminum parts together expansion rate wil be the same as there is proff of head gasket issues on the 3.7 dont no why merc didnt just make one from the start costing would of played a big part so the project cost just stepped up another $700 when u deduct the price of rebuilding the old head getting the bigger chamber 93cc migh be still too much comp but the plan is to go zero deck hieght and macihe small dish on the piston top to get rite compression ratio well i have till november to finish it so i have time to save my some money well i could save $ 100 a week from not smoking but i dont see that happening
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#4
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You would prob save $400 a month if you gave up the Red Bull and Coffee.
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#5
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Quote:
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__________________
1986 V-20 1986 Yamaha 150 HP |
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#6
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you trying to take the piss out of me
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#7
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Nope, just a friendly observation. You can keep your piss.
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#8
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Last edited by aussie; 03-30-2011 at 07:50 AM. |
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#9
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Well if that is how you feel. I understand. Just don't go away mad.
You blokes from down under are all the same, you can dish it out nicely but can't take a joke worth crap. When you change your mind, us wanker redneck types will still be here offering free advice and criticism to the handicapped. (After we finish ****ing ourselves that is) Good luck with the rebuild.
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#10
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Quote:
__________________
1986 V-20 1986 Yamaha 150 HP |
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