Well fellas, looks like it's time to order the 760 crank but I was wondering if y'all know of anyone or any place where I can get the 760 crank for less than $1,700 from TVI, that's the price even with exchange, hard to swallow. Anyone?[img]i/expressions/face-icon-small-confused.gif[/img]

 

Their was a shop that had lower price but the engines keep on blowing up on people.

 

Yeah i hear ya! A new crank is $365.00 Retail, go and figure were the other $1300.00 comes into play???[img]i/expressions/face-icon-small-confused.gif[/img]

 

Different piston too! $300-$400 (Ouch!)

Bore the cases (do you need to do that for the sleeved jugs?)

True the crank: $100

What else is there?

 

Well if you already have Gary's piston which I beleive Hillbilly does not? Yes, then you are looking at another $300.00. But the rod is the same and the new pin can't be that much.

 

How much stroke would you like to have? +5mm or +8mm



MrHorsepower

 

Isn't the piston different for the stroked 760 vs. the non-stroked 720? I know this is the case for the Pami engines so was thinking that would be the case for the TVI as well?[img]i/expressions/face-icon-small-confused.gif[/img]

Pami uses a 105.5mm bore and I think it is a 4mm stroke (stock is 100mm bore X 83 stroke / 760 is 105.5mm bore X 87mm stroke.)

Is TVI going with a 88mm stroke since it is a 105mm bore? I have been wondering this for a while [img]i/expressions/face-icon-small-confused.gif[/img] If not, what is the cc measurement of the TVI set-up? How many rings on a TVI 760 piston? I know Pami has an oil ring and a compression ring (one less than stock.)

You are correct Punisher, the rod is the same it is the crank pin that is different.

 

The TVI 760 is a stroked crank, I am not sure what it is, with a piston that is 1.049 at the base of the dome the piston. This is the same piston TVI has been using for the 720 and the 760. It is actually a Stroker piston for the 760, this should give you the advertised 13:1 compression. Now, the TVI 720 with the this same piston actually puts your compression at barely 11:1. In order to get the 13:1 compression as advertised for the 720 the piston should be taller, it should be at 1.100 instead of the stroker piston that is 1.049. Gary was made aware of this and has since had new pistons made up for the 720 or this is the last I heard. The 720 is a great kit, just remember to get the new piston with it and not the old one.

 

An engine builder had to be "made aware" ??????????? Is this really true?



MrHorsepower

 

wow mine runs like it does on 11/1 ?