banshee long rod crank couple questions need expert advice
May 14, 2005 | 07:44 AM
#1
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banshee stroker crank couple questions need expert advice
I was thinking of buying this long rod banshee kit +5 mm. It says it requires no machining to the cases but it does require a spacer plate for the cylinder,the kit comes with the crank/pistons/all gaskets and the spacer plate.
question 1 : The spacer plate is aluminum,will i have to have a base gasket on bose sides of the spacer plate?,otherwise how would it seal with a gasket only on one side?
question 2: are there any serious disadvantages to running a +5mm crank?
question 3: is there a common problem with these,or things i really have to watch out for that would differ from stock?
question 1 : The spacer plate is aluminum,will i have to have a base gasket on bose sides of the spacer plate?,otherwise how would it seal with a gasket only on one side?
question 2: are there any serious disadvantages to running a +5mm crank?
question 3: is there a common problem with these,or things i really have to watch out for that would differ from stock?
May 14, 2005 | 10:01 AM
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banshee long rod crank couple questions need expert advice
Yes you need to run with 2 base gaskets, one on each side. I also have a +5mm rod in the blaster and use a spacer plate. You will need to deck the cylinders to set your compression to the right octane that you will be using.
The longrod set up is actually more reliable than stock because it puts less rod angle on the piston and less cylinder wall wear.
The longrod set up is actually more reliable than stock because it puts less rod angle on the piston and less cylinder wall wear.
May 14, 2005 | 01:33 PM
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banshee long rod crank couple questions need expert advice
Superevil, there is a lot of ways to add rod length and to stroke the engine. I really need to know what kit you are looking at. If you are going with a stock stroke crank with 115mm rods (5mm longer than stock) the use Wiesco 795 series pistons. They have a higher pin height and will not require a spacer or anything different than your current setup. There is no reason to run a plate for a long rod on a banshee since the 795 pistons are available. The added crankcase volume caused by the plate will hurt performance because it will decrease transfer velocity.
If you are looking at a 4mm stroker with 5mm long rod, there are quite a few ways to do this setup. .065" thick plate with a gasket for easy removal of cylinders, a .080" thick plate glued (yamabond) to the cases and to the cylinders, or stock gasket and let the piston exit the top of the cylinder and have your head machined to let the piston go up into it. There are many advantages to each setup.
If you want, PM me and I can give you my number. Lots of this stuff is easier to explain on the phone. There are many things to take into account.
If you are looking at a 4mm stroker with 5mm long rod, there are quite a few ways to do this setup. .065" thick plate with a gasket for easy removal of cylinders, a .080" thick plate glued (yamabond) to the cases and to the cylinders, or stock gasket and let the piston exit the top of the cylinder and have your head machined to let the piston go up into it. There are many advantages to each setup.
If you want, PM me and I can give you my number. Lots of this stuff is easier to explain on the phone. There are many things to take into account.
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