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| Tofuball's '94 XFi; It's all about city MPG | |
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| Tweet Topic Started: Mar 12 2011, 08:59 AM (39,422 Views) | |
| Tofuball | Nov 7 2011, 10:22 AM Post #406 |
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Strange Mechanic
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Fun fact: Cyl three is the last to get coolant. I wonder if that slight heat increase contributes the the frequency of it's burnt exhaust valve . . . |
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| Tofuball | Nov 7 2011, 02:38 PM Post #407 |
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Strange Mechanic
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Total seal piston rings part number X8024 fits our application. Three rings with the second ring being gapless. I emailed their tech and he said the gapless ring is slightly lower tension then a stock ring. I emailed them asking about price. Standard premium rings from rock auto are ~$50 IIRC. EDIT: They got back to me, $122.56 w/o an acct. I asked them how one would get an account. Here is the listing from summit: http://www.summitracing.com/parts/TSR-X8024-20/ where it's $121 And from some other random site for $103: http://sdparts.com/details/total-seal-piston-rings/totx8024-20 Edited by Tofuball, Nov 7 2011, 11:22 PM.
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| Tofuball | Nov 11 2011, 05:23 PM Post #408 |
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Strange Mechanic
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Installed new tires and rims. They're 23lbs each with tire.
Edited by Tofuball, Nov 11 2011, 05:23 PM.
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| Tofuball | Nov 14 2011, 06:33 PM Post #409 |
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Strange Mechanic
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Pistons came. Block goes back to machine shop tomorrow for the overbore and re-hone. |
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| Tofuball | Nov 20 2011, 12:53 AM Post #410 |
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Strange Mechanic
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Oh, good, the block is back from the shop. No more scratchy bores.![]() Let's clean it off and mask it off . . . ![]() I see a red block . . . ![]() . . . I want to paint it black . . . ![]() . . . no colors anymore . . . ![]() PvP: Piston vs piston. Stocker is on the right and the flat top is a later model 4 cyl piston. ![]() Total seal piston rings . . . these are the 2nd ring gapless style rings. ![]() See the middle ring? It's actually two rings, a carrier and a rail . . . gapless. ![]() I got the crank\pistons\mains into the block and next I have to figure out the o rings on the oil pump . . . It's bedtime for me now . . . hope you enjoy the pictures. Edited by Tofuball, Nov 20 2011, 12:55 AM.
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| Coche Blanco | Nov 20 2011, 10:30 AM Post #411 |
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Troll Certified
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Are you going to machine those? (Have we decided if you have to or not?) |
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| Tofuball | Nov 20 2011, 10:35 AM Post #412 |
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Strange Mechanic
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I'm going to try running them as-is to see what problems would arise and if they could be fixed with a little tuning. If it's too much of an issue it's not that big a deal to pop them out and ship them to 3tech. |
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| Scoobs | Nov 20 2011, 11:09 AM Post #413 |
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:D
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you should just get the rotating assembly balanced, trust me, it makes one hell of a difference, and is worth it. |
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| snowfish | Nov 20 2011, 11:11 AM Post #414 |
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Basic GearHead
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Looking great! Like the Stones reference too. With the G13 pistons, is your G10 now an interference engine?
Edited by snowfish, Nov 20 2011, 11:11 AM.
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| t3ragtop | Nov 20 2011, 11:12 AM Post #415 |
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Turbo3 and Twincam Tweaker
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tofu, add this to your fun fact. cylinder #2 shares it's water jacket with cylinders #1 and #3 which cheats it on cooling. i think that has something to do with the crumbling ring lands in the #2 hole on the turbo3 engines. getting into the operation of the megasquirt in sequential mode, the new ms2extra 3.1.1 firmware adds a third injection table, variable fuel trim, which allows you to add fuel in a small percentage to an individual injector. that lets you control the fire deck temps in each cylinder by running a tad bit richer. i have always wondered if the egr circuit had something to do with the #3 exhaust valve burning. the port is pulled off the exhaust runner from the #3 hole and the passage runs through the head on the #3 end. my 91 verts never had the egr and i've had little trouble with them burning the #3 exhaust valve. the black looks good on the block.
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| Scoobs | Nov 20 2011, 12:10 PM Post #416 |
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:D
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should have been my favorite lime green
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| Tofuball | Nov 20 2011, 12:23 PM Post #417 |
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Strange Mechanic
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Too late now!
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| Tofuball | Nov 20 2011, 12:23 PM Post #418 |
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Strange Mechanic
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Thanks! 3tech says it would not be interference. |
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| Tofuball | Nov 20 2011, 12:24 PM Post #419 |
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Strange Mechanic
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I'm going to have a thermocouple in each exhaust port - so that third injection table will certainly come in handy
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| Tofuball | Nov 20 2011, 12:26 PM Post #420 |
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Strange Mechanic
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Oh, I totally would have, you see, I just didn't have any laying around ![]() Seriously though, bright colors (neon green, bright red, metallic blue, etc) look great as accents on a gloss black object. |
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Like the Stones reference too.
With the G13 pistons, is your G10 now an interference engine?

7:24 PM Jul 10