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Old 02-16-2012, 01:21 AM   #101
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Fair enough. I've only checked one engine and it failed, so my experience hasn't been particularly good.
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Old 02-16-2012, 01:37 AM   #102
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Originally Posted by miata2fast View Post
No problem.

I would like to ask you another technical question. What was involved with the crank scrapers? Does the crank lightening allow you to get the scrapers closer to the crank?

I want to put scrapers on my next motor, but I do not know how well they will work with those damn casting ridges on the crank throws. It seems like a waste without them gone.

Pricey?
http://www.crank-scrapers.com/

The ones in my engines are custom made by my engine builder, not by the company in the link above.

Last edited by emilio700; 02-16-2012 at 01:58 AM.
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Old 02-16-2012, 07:33 AM   #103
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Is 11:1 better than 9.5:1 for E85 use? Iím building forged engine (for F/I) and wonder If I should go with 11:1 Supertechs. Iím only using E85 and its quality stuff here in Finland. 106octaine 80-85% all year round
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Old 02-16-2012, 07:57 AM   #104
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+1 on ^ ? I already have an 11:1 motor laying around, been wondering about the very same question, (what with e85 a mile away)
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Old 02-16-2012, 08:03 AM   #105
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I wonder what CR the ST 11:1 actually will give on a undecked block since the compression height seams to be lower than stock (at least mine were). With some unshrouding maybe 10.5 or even slightly less. That's if the domes actually are 10.5cc on them.

Yeah, mine are 84mm, I know, but there might be the same design practice on the 85.5.
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Old 02-16-2012, 08:17 AM   #106
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E85 is magic stuff. All of you E85 guys if you could start over again, would choose 11:1 pistons?

I did E85 test 6 months ago with my old supercharged stock 8.8:1 motor. I didnít have FMIC only Aquamist WI
- Cut the water injection off and start pushing the car.
- After 15min hard street driving I didnít hear or log any knock (I had det-cans)
- I add more timing until around 22 deg btdc finally engine starts pinging. And that was with 14PSI boost
[/cool story bro...]
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Old 02-16-2012, 09:13 AM   #107
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Quote:
Originally Posted by emilio700 View Post
http://www.crank-scrapers.com/

The ones in my engines are custom made by my engine builder, not by the company in the link above.
That clears up my understanding on the way they work. I thought they scraped a portion of the side of the throw as well, but I see in the pic that they scrape only the furthest point from the center axis of the crank shaft.

I was dreading the installation, but now it looks much easier.

Thank you.

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Old 02-16-2012, 09:47 AM   #108
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I've had these cams for a few years now.
.427 cam lift intake, 272į
.410 cam lift ex, 266į
Any idea the cam timing in these?
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Old 02-16-2012, 11:05 AM   #109
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Any plans to sell similar cams in the future?
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Old 02-16-2012, 01:44 PM   #110
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Quote:
Originally Posted by muoto View Post
Is 11:1 better than 9.5:1 for E85 use? I’m building forged engine (for F/I) and wonder If I should go with 11:1 Supertechs. I’m only using E85 and its quality stuff here in Finland. 106octaine 80-85% all year round
That's depends on your goals and I'm probably not the guy to ask. Personally, I'm a response -----. I dread a turbo system with any lag whatsoever. I'd simply don't enjoy driving a car with bad control feedback and non-linearity, even if it's fast. So for me, I'll set up the car to have as little hysteresis in TPS/Torque as possible. One of the means to that end is high static compression and E85. Others running big turbos and a ton of boost might be happier with less static compression. Sav is better versed in the pros/cons of that decision.\

Bottom line is with E85, I can so I will.

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Any plans to sell similar cams in the future?
No.

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Originally Posted by bobbiemartin View Post
Any idea the cam timing in these?
No lobe center info was supplied. It's up to me to mess with them on the dyno and see what works. I don't know where they are at now, only that the indexes are zeroed out.
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Old 02-16-2012, 03:29 PM   #111
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Quote:
Originally Posted by muoto View Post
E85 is magic stuff. All of you E85 guys if you could start over again, would choose 11:1 pistons?

I did E85 test 6 months ago with my old supercharged stock 8.8:1 motor. I didnít have FMIC only Aquamist WI
- Cut the water injection off and start pushing the car.
- After 15min hard street driving I didnít hear or log any knock (I had det-cans)
- I add more timing until around 22 deg btdc finally engine starts pinging. And that was with 14PSI boost
[/cool story bro...]
I run 22* @ 20psi with no pinging and no WI.
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Old 02-16-2012, 03:47 PM   #112
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I run 22* @ 20psi with no pinging and no WI.
Yeah, but with IC I didn't have any (coldside SC)
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Old 02-16-2012, 06:54 PM   #113
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Quote:
Originally Posted by emilio700 View Post
I dread a turbo system with any lag whatsoever. I'd simply don't enjoy driving a car with bad control feedback and non-linearity, even if it's fast. So for me, I'll set up the car to have as little hysteresis in TPS/Torque as possible.
SJMARCY ALERT!!!!oneone
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Old 02-17-2012, 02:26 AM   #114
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I disassembled your motor and sonic checked it - it would have punched a hole in #3 in short order. Who built that engine?
an idiot that isnt around anymore.
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Old 02-17-2012, 02:35 AM   #115
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an idiot that isnt around anymore.
N N N HDJJSJEIE. SNUFGLE S

Valuabe contribution
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Old 02-17-2012, 01:30 PM   #116
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Originally Posted by Faeflora View Post
N N N HDJJSJEIE. SNUFGLE S

Valuabe contribution
This means that you should not care about the guy who built the motor - he is out of the picture for good. Guy has completely disappeared. Meaning, I know of at least 5 people who have been actively trying to find him for well over 2 years.
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