Keith Gandy
Maxima K2 40:1 87 Pump Gas
- Local time
- 3:19 AM
- User ID
- 341
- Joined
- Dec 30, 2015
- Messages
- 6,209
- Reaction score
- 16,190
- Location
- Provencal, Louisiana
![United-States Country flag](https://opeforum.com/data/files/flags/shiny/32/United-States.png)
Wouldnt tapering the exhaust top to bottom decrease the blowdown somewhat?
Ive seen that on other sawsRemember the picture rattler posted of the exhaust port on a 288 that had a wash pattern in the exhaust floor?
Compression is an easy way to gain torque though........
Best ways to increase compression?
Best ways to increase compression?
Either cut the cylinder base, or just remove the base gasket. Either will increase compression. Now, after you do that you may get piston slap. So you have to compensate by either: cutting the squish band in the cylinder to allow the piston to clear at TDC, or, cut the piston where the squish band is and make a pop up that clears at TDC. You also have the issue that you have dropped all the ports and changed the mechanical timing, unless (as some do) you remove the top ring with the pop up which raises the top of the transfers and the exhaust port back up. Removing the top ring also lowers compression some (by lowering the ring travel height and reducing the seal) but also reduces the ring friction. I like 2 ring pistons myself, and I believe that lessening the weight of a piston with a pop up also changes the stock balance of the piston and crank (not so good thing IMO), though with less inertia it is easier to force the piston up and down. Read: lots of variables here. You also have to contend with cylinder taper, squish taper and ring gap at TDC with a squish cut though, etc. etc.
tl;dr but, I scanned it. lol
You don't have anything to 'contend,' with. When you make a machine work better you train a dog. You don't cajole him, you convince him. It's a mutual thang. A warlord sees war as merely an opportunity to extend his skills through an opponent according to Sun Tzu.
Here's a better way to put it: On the sixth hole of a golf course, a buddy of mine was making a round with his Grandpa. The kid had one terrible hook. I don''t mean he was missing a hand. haha. No he drew the ball in an arc in the direction of the follow-through of his swing. Now, considering the relationship between the insuperable stand of Oaks in the fairway, the tee and the green, he could take advantage of his natural hook to lob the ball around the trees right onto the green. His Grandpa said, "what the hell are you doing?" "I'm playing my hook," said the kid. "Don't play your hook, get rid of it!!!" Said Grandpa. Who was right? Slick runway or furburger? Can you argue with success?
Can you explain what you look for and how to determine how much can be cut based on this?Intake timing or skirt length.
Can you explain what you look for and how to determine how much can be cut based on this?
Sent from my iPhone using Tapatalk