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Re: Another "How much will it make?" Project "Special Needs"
Posted: Mon Jan 01, 2018 2:41 pm
by randy331
Frankshaft wrote: ↑Sun Dec 31, 2017 7:13 pm Isn't there a program somewhere that will calculate that?
I don't put much faith in most programs. At least not any in my price range.
Randy
Re: Another "How much will it make?" Project "Special Needs"
Posted: Mon Jan 01, 2018 3:09 pm
by randy331
Rick360 wrote: ↑Sun Dec 31, 2017 2:04 pm
CGT wrote: ↑Sun Dec 31, 2017 12:24 pm
Even when there has been little learned from various engine tests. There has always been things learned about the dyno itself.
...
Im pretty fortunate to be around as many dyno sessions....and data from them as I am. It tends to make you much less likely to be bullshited.
Chad
I see a lot who want to keep their engine secret, but that's the wrong attitude. Having a group of smart people who are all willing to share their data accelerates everyone's learning. No way any one person can have their hands on that many different engines when we are doing this as a hobby. Our knowledge network keeps growing.
Rick
Very true on all accounts.
I am fortunate to be around a very good group of engine/racing guys.
I just hope they don't view me as a drag on the learning curve .
Randy
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 9:12 am
by Frankshaft
randy331 wrote: ↑Mon Jan 01, 2018 2:41 pm
Frankshaft wrote: ↑Sun Dec 31, 2017 7:13 pm Isn't there a program somewhere that will calculate that?
I don't put much faith in most programs. At least not any in my price range.
Randy
It was sarcasm if you didn't get the joke.
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 10:06 am
by randy331
Frankshaft wrote: ↑Tue Jan 02, 2018 9:12 am
It was sarcasm if you didn't get the joke.
Oh, like enter your flowz and it tells you how close your piston shoud get to the head ?
I get the joke now.
Randy
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 10:46 am
by Rick360
He used the 128 formula for piston to head clearance.
stroke/128 = piston to head clearance
3.5/128 = .027"
Rick
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 11:46 am
by n2xlr8n
Rick360 wrote: ↑Tue Jan 02, 2018 10:46 am
He used the 128 formula for piston to head clearance.
stroke/128 = piston to head clearance
3.5/128 = .027"
Rick
Note that I'm laughing at the coincidence.
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 11:55 am
by CGT
I think SN will be going back together with the 87 Forumula
3.48/87=.040
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 4:12 pm
by cjperformance
CGT wrote: ↑Tue Jan 02, 2018 11:55 am
I think SN will be going back together with the 87 Forumula
3.48/87=.040
yes way safer !
Re: Another "How much will it make?" Project "Special Needs"
Posted: Tue Jan 02, 2018 6:33 pm
by zums
CGT wrote: ↑Tue Jan 02, 2018 11:55 am
I think SN will be going back together with the 87 Forumula
3.48/87=.040
Well, what did you find, how bad is it
Tom
Re: Another "How much will it make?" Project "Special Needs"
Posted: Wed Jan 03, 2018 10:42 am
by CGT
Waiting for cold snap to break before diving back in. Here is a pic from my bore scope.
Resized_20171229_192119.jpeg
Re: Another "How much will it make?" Project "Special Needs"
Posted: Wed Jan 03, 2018 11:45 am
by CGT
Shiny mark at the kinda upper left is point of contact. Valve reliefs to the right for reference.
Re: Another "How much will it make?" Project "Special Needs"
Posted: Wed Jan 03, 2018 11:59 am
by MadBill
So that 10 o'clock contact/impact point is on the edge of the crown? Puzzling; don't know what could cause that other than hard-to-overlook mishandling before assembly...
Re: Another "How much will it make?" Project "Special Needs"
Posted: Wed Jan 03, 2018 12:19 pm
by CGT
MadBill wrote: ↑Wed Jan 03, 2018 11:59 am
So that 10 o'clock contact/impact point is on the edge of the crown? Puzzling; don't know what could cause that other than hard-to-overlook mishandling before assembly...
Yeah it appears they were all mishandled equally.
Re: Another "How much will it make?" Project "Special Needs"
Posted: Wed Jan 03, 2018 12:32 pm
by RevTheory
Ahhh, just a little peck on the cheek
Re: Another "How much will it make?" Project "Special Needs"
Posted: Wed Jan 03, 2018 4:05 pm
by CGT
Resized_20170815_204933.jpeg
Any guess where it hit the head at? Maybe the head just needs clearanced?
