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Old 08-22-2012, 11:16 AM   #37
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ehh.. its only been a couple weeks since his last post. Probably either blew his engine and embarassed to talk about it or just simply got busy with something else and doesn't wanna waste time with us =(

patience
or he has a life outside of internet forums...
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Old 08-22-2012, 11:17 AM   #38
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or he has a life outside of internet forums...
Psh,
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Old 08-26-2012, 08:35 PM   #39
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too bad you can't take full advantage of the compression with bigger cams
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Old 09-16-2012, 06:13 PM   #40
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So any update to this? Still running? Dyno? Also I was wondering what engine managment you are using to run these. Stock, piggyback, or standalone? Where did you souce these from, new or another engine.
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Old 09-16-2012, 08:53 PM   #41
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we are all still waiting for some kinda update on this one..
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Old 09-18-2012, 02:36 PM   #42
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does anyone have this guys number and give him a call. I WANT UPDATES!!!
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Old 09-20-2012, 05:35 AM   #43
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+1
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Old 09-29-2012, 11:54 PM   #44
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I'm guessing he blew up the engine. That is way too much compression to be running on pump gas and cast pistons. To run as much compression as he had you would need forged pistons and run race gas. Mother wise you would not be able to control detonation. Of course, he could prove me wrong by posting an up date, but physics predicts that he won't be doing that.
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Old 11-02-2012, 11:50 AM   #45
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Don't forget the toothpick con rods.
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Old 11-05-2012, 10:47 PM   #46
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Originally Posted by Autocross72 View Post
I'm guessing he blew up the engine. That is way too much compression to be running on pump gas and cast pistons. To run as much compression as he had you would need forged pistons and run race gas. Mother wise you would not be able to control detonation. Of course, he could prove me wrong by posting an up date, but physics predicts that he won't be doing that.
You sure that the motor would gain that much power from a 1.5 point compression ratio bump that the cast pistons and stock rods would crack and pop?

Worst case you need 94 octane.
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Old 11-06-2012, 04:40 AM   #47
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@Viperoni
I dont think its the "power" that he is referring to that will blow up the motor, but the compression itself and not using correct precautions. We will never know because OP hasnt updated
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Old 04-06-2013, 09:06 AM   #48
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Hello there, any update ? dyno result maybe?
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Old 04-06-2013, 10:26 AM   #49
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what would go first the cylinder walls or the connecting rods?
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Old 04-06-2013, 01:01 PM   #50
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maybe piston hit the valve
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Old 04-06-2013, 10:10 PM   #51
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i was referring to should it function what would stress out first. valve clearance would be the first issue maybe a shim gasket to gain clearance and lower compression ratio while also adding block guards might work great.
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Old 04-07-2013, 10:53 AM   #52
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too bad the project isn't work, i still really curious about the result if someone can swap this piston and have about 12:1 compression ratio in 1nz-fe engine. toyota 1NR-fe engine series have 11.5:1 compression ratio, so i think actually it is possible to have 12:1 too.
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Old 04-07-2013, 11:27 AM   #53
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I think 12:1 is possible and even 12.5:1 with premium gas. the prius pistons are 13:1 so it is pushing it.

MicroImage has higher compression pistons for sale but i don't know of anyone that has done it. his 9:1 pistons are very popular in the boosted community.
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Old 04-07-2013, 12:36 PM   #54
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With that we'd be hangin' out in the FRS compression ratio arena.
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