well time for a 416 kit....
Jan 14, 2004 | 10:46 PM
#42
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well time for a 416 kit....
Originally posted by: KGB
I ran a 14:1 comp ratio (I cc's the head and everything to find out) it was ok on head studs, but I did have a head gasket blow once. I fixed it, milled the head a little and its was fine. I had a custom wleded up combustion chamber, decked the head, and shaved from the cyl as well. It wa sa flat top piston making that comp ratio.
Marky, Use the 4stroke tech oil cooler, its the way to go. It droips oil temps alot more than a bigger tank, feeds cool oil right to the valve train, and adds 1/2 quart capacity.
I ran a 14:1 comp ratio (I cc's the head and everything to find out) it was ok on head studs, but I did have a head gasket blow once. I fixed it, milled the head a little and its was fine. I had a custom wleded up combustion chamber, decked the head, and shaved from the cyl as well. It wa sa flat top piston making that comp ratio.
Marky, Use the 4stroke tech oil cooler, its the way to go. It droips oil temps alot more than a bigger tank, feeds cool oil right to the valve train, and adds 1/2 quart capacity.
This is the oil cooler I am looking at:
"Why Upgrade from your stock tank? Failures have been numerous, some causing sever engine failure with stock OEM oil tanks, that crack and leak. These hand-fabricated aluminum tanks by ACE offer a stronger design, higher quality workmanship, increased oil capacity, (approx. 20 oz.) and stainless steel braided oil lines with #6 AN end fittings. Engine oil can now become cooler because of increased Oil capacity, special cooling vents in the tank that actually flow cool fresh air through the center of ACE oil tank, and a uniquely designed return oil system that runs oil around special cooling vents. This kit is supplied complete with all necessary mounting hardware and stainless steel braided oil lines and instructions are included. Finish: Matte Finish (Bead Blasted Aluminum). "
... Duncan Racing at this URL:
http://www.duncanracing.com/atvprodu...ex.phtml?id=12
Jan 15, 2004 | 11:58 PM
#45
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well time for a 416 kit....
Originally posted by: ironrod
440EX026,
It's 13:1 because thats what JE rated it for on the 400EX, and Duncan Racing tested it at using the method you mentioned. I don't take any one persons advice on what they say, I do the research and find the documentation to support the compression rating.
My only concern now is overheating. Even though I am using a HP4 semi-synthetic, I am looking at the largest capacity cooling oil tank I can find and right now thats the ACE oil tank. When the funds are in, thats next on the shopping list.
Marky
440EX026,
It's 13:1 because thats what JE rated it for on the 400EX, and Duncan Racing tested it at using the method you mentioned. I don't take any one persons advice on what they say, I do the research and find the documentation to support the compression rating.
My only concern now is overheating. Even though I am using a HP4 semi-synthetic, I am looking at the largest capacity cooling oil tank I can find and right now thats the ACE oil tank. When the funds are in, thats next on the shopping list.
Marky
I am with you on the oil tank but I refuse to spend $200 on $20 worth of aluminum, and I am planning on making a custom extension to a stk tank.
Have you given any thought to a aux oil cooler? I hear nothing but great things about them and will be testing either the FST one or just running a second stock unit etc. The heat is deff a lot more than with a stock engine so this has to be worked on too.
Glad to hear I am not the only one with pretty much no real problems running higher comp ratios. Maybe just keeping an eye on the engine and understanding that you cant heavilly mod an engine without it needing additional maintenence is helping us both not have the experience that Fred did.
Jan 25, 2004 | 01:52 AM
#46
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well time for a 416 kit....
hey, got it back, but there is no gasket kit in the box[img]i/expressions/face-icon-small-shocked.gif[/img]
marky- if you have some time tomarrow, you could stop in and help put it back together..lol, any one have a gasket kit lying around???? maybe it got misplaced.. who knows
kc
marky- if you have some time tomarrow, you could stop in and help put it back together..lol, any one have a gasket kit lying around???? maybe it got misplaced.. who knows
kc
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