WOULD THERE BE ANY DIFFERENCE BETWEEN A PAMI 12.5:1 OR A 11.5:1 PISTON ON A STOCK BORE DS WITH ALKY. THE PAMI WITH SHIPPING IS ABOUT 120 DOLLARS MORE THAN THE 11.5:1. IS IT WORTH THE EXTRA MONEY? DOES TVI STILL MAKE A 12.5:1? IF SO IS IT STOCK BORE AND WHAT IS THE PRICE?

 

I'm sure there would be more power with the 12.5:1, but since you already have the 11.5:1 I wouldn't think the gain would be that noticable.

I bought my stock bore 12.5:1 JE piston used from THEPUNISHER, maybe he could steer you in the right direction. Speaking of him, I haven't heard anything from him for a while.

 

There wouldn't be much difference between the 11.5 & 12:5. If your running alky try the new 14:1 or 16:1 that just came out.



MrHorsepower

 

what all is involved with the 14-1 in a stock engine, well i should say a stage 2 going to 14-1. seems to me the ds loves compression but , i just ride and put part together i'm not a designer.

 

tvi does have a 13-1 stock bore, i started to put it in before the 720. would have but the piston company sent out a batch of wrong rings at the time.

 

Not much. Thats why the 14:1 rocks!

 

Most of the guy's on here are much more engine smarter than me!! but i can tell each full point in compression you gain means another gear you have to try and keep the frontend down in.[img]i/expressions/face-icon-small-happy.gif[/img] and if they are properly tuned the ds has no problem turning over at these compression rates!!! But don't rely on what i say because it may just equate to the amount of nitro im adding at any given rate[img]i/expressions/face-icon-small-wink.gif[/img]

 

does tvi still offer a 12.5:1?

 

might want to call they would know for sure.