3mm stroker???
- Thread starter tjsdaname
- Start date
i love it, but i cant say the power gain because i had it ported the same time, (which keep in mind it has to be ported to match the +3mm crannk), but way faster than i could have imagined
if you dont port it ,and just ran it youd feel a little more lowend punch
but very marginal ,most people think it is a waste becuase it barely runs better than stock unless its ported mostly becuase theres major misalignment on the ports at bottom dead center ,especially if you ru na spacer plate setup like most do,i see yo u alreayd have porting for the stock stroke crank ,this will complicate things as your port timing will be likely way off .. a cut recessed head and no spacer is probably what youll have to use in your application but thats a guess for now
but very marginal ,most people think it is a waste becuase it barely runs better than stock unless its ported mostly becuase theres major misalignment on the ports at bottom dead center ,especially if you ru na spacer plate setup like most do,i see yo u alreayd have porting for the stock stroke crank ,this will complicate things as your port timing will be likely way off .. a cut recessed head and no spacer is probably what youll have to use in your application but thats a guess for now
thats why it's +3, not -3. i've actually seen +6 strokers on blasters, but thats insane. lol.
the stock rod/stroke ratio is 1.842, which is a little higher than ideal. with a +3 stroker crank, it is 1.750, which is pretty much perfect for a high-reving engine. with the +4, it's 1.72, which is beginning to move the power more down low and create a higher side-load on the cylinder walls.
but like flotek said, you'll probably want to get the ports touched up to get the durations right, and the head will need sunk a bit to allow the piston to move up another 1.5mm.
the stock rod/stroke ratio is 1.842, which is a little higher than ideal. with a +3 stroker crank, it is 1.750, which is pretty much perfect for a high-reving engine. with the +4, it's 1.72, which is beginning to move the power more down low and create a higher side-load on the cylinder walls.
but like flotek said, you'll probably want to get the ports touched up to get the durations right, and the head will need sunk a bit to allow the piston to move up another 1.5mm.
