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Messages - blykins

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121
FE Technical Forum / Re: Compression ratio
« on: December 28, 2023, 04:03:10 PM »
Of course there is crevice volume, Frank, I’m not sure why we are having menial conversations considering I have caveats up above.  Crevice volumes can be all over the place and I didn’t add it for that reason, even if racetec averages about a cc.  A .1 change in compression ratio has absolutely no bearing on Greg’s questions.  If this were a super stock motor, I’d have a difference answer. 


122
FE Technical Forum / Re: Compression ratio
« on: December 28, 2023, 12:38:13 PM »
I said “approximate” because you can’t add crevice volume when it’s not been measured.  It varies from piston to piston.

I also based the calculation on 68cc and he said the chambers varied a little bit.  That’s also why I said “approximate”.

123
FE Technical Forum / Re: Compression ratio
« on: December 28, 2023, 10:42:32 AM »
Quote from: gregaba on December 28, 2023, 09:28:52 AM
Sorry for not including all info.
The pistons are Auto Tec part number 1021059 custom ordered from Brent.
They have a 5 cc dome volume.
Gaskets are Cometic 0.40 thick.
As of now I will be running compressed natural gas for fuel.
Cam will be the Ford D cam for a while and then a custom solid roller that I will let Brent decide what I need.
Greg

A 4.164" bore, 3.980" stroke, 68cc chamber, .040" x 4.400" head gasket, with a 5cc dome piston sticking .005" up out of the hole would yield an approximate compression ratio of 13.36:1. 

You said flat top in the post before, so if it's a 5cc flat top instead of a dome, compression ratio would be approximately 11.85:1.

124
FE Technical Forum / Re: Compression ratio
« on: December 27, 2023, 03:22:07 PM »
Quote from: 427mach1 on December 27, 2023, 02:52:56 PM
Brent, the only pistons I see on their website are the Autotec version with -11.0 cc dome volume.  Looks like it will be around 11.0:1 static CR depending on gasket thickness.

I wouldn't assume that he's got shelf pistons.  A lot of guys run custom slugs.  Also, an 11cc dish isn't considered a flat top.  A flat top is usually around 3-6cc.

125
FE Technical Forum / Re: Compression ratio
« on: December 27, 2023, 02:34:21 PM »
Quote from: gregaba on December 27, 2023, 02:13:28 PM
I need someone smarter then me to figure my CR.
I just spent all morning ccing my heads and was a little surprised at the results.
The heads cced out at 68-69 cc across both of them.
Edelbrock 427 Aluminum heads with 220-173 valves.Heads have been worked but not milled.
Here is what I have 428- Bore is 4.164.
Pistons are flat top race tech sticking out of the block 0.005.
Stock stroke.
Block was square decked and blueprinted.
Crank assemble balanced to 1 gram.
I have forgotten how much of a pain it is to cc heads and it took me a lot longer then I remember having to do in the past.
Thanks
Greg

What is the piston volume?  What head gasket?

126
FE Technical Forum / Re: 6090 N heads worth
« on: December 27, 2023, 12:07:00 PM »
Quote from: JimNolan on December 27, 2023, 09:54:41 AM
If you're going to spend $2000 on heads go ahead and buy a set of Edelbrock RPM heads. I've ran a set of those for about 10 years and they are a performance head.

Just a quick interjection....

If you're going to spend $2000 on a set of aftermarket heads, quickly bypass Edelbrock and head toward something like a Trick Flow head.  I would no longer consider an unported Edelbrock head a performance head and if you compare intake flow data, the Edelbrock isn't that far off from a CJ head at all.

127
FE Technical Forum / Re: Innovators West integral timing pointer and crank trigger bracket
« on: December 23, 2023, 07:49:58 AM »
Been around a while but with a few changes.  The balancer didn’t use to have the reluctor wheel on it.  Nice pieces.  I use them on racy stuff.

128
FE Technical Forum / Re: ben alameda youtube
« on: December 20, 2023, 01:53:53 PM »
Quote from: 482supersnake on December 20, 2023, 10:47:22 AM
Quote from: blykins on December 20, 2023, 05:48:45 AM
Quote from: 1968galaxie on December 19, 2023, 09:00:22 PM
Many of us have watched the 511 build with Jay's heads. Very sweet build! Thank you for sharing that one.
Is the engine waiting for dyno time availability?

Cheers

I'm waiting for the customer to pay what he owes me.
Were you able to make contact with the customer yet? Very strange situation that he would invest so much and unfortunately leave you on the hook for so much and cut off contact. If you haven't heard back from him it might be worthwhile to see if there's any kind of PI available in his country.

There are some customers who send an email at the beginning, make their payments when asked, and I never have to bat an eyelash about it.  Some other customers give me fits. 

I don't know if it's a communication issue (I don't speak German and he doesn't speak hillbilly) or what, but for the amount of grief that he gave me at the beginning because of how hard parts were to get (8 months on a Bryant crank), I honestly tried to do my best to get it done and get it out of here.   Now it's been sitting here for quite a while, days and days go by between emails, etc.  It's taking up an engine stand, floor space, etc., and it needs to go. 

129
FE Technical Forum / Re: ben alameda youtube
« on: December 20, 2023, 05:48:45 AM »
Quote from: 1968galaxie on December 19, 2023, 09:00:22 PM
Many of us have watched the 511 build with Jay's heads. Very sweet build! Thank you for sharing that one.
Is the engine waiting for dyno time availability?

Cheers

I'm waiting for the customer to pay what he owes me.

130
FE Technical Forum / Re: ben alameda youtube
« on: December 19, 2023, 08:03:06 PM »
Don’t know if you follow mine, but I just finished an all aluminum 511 with Jays new heads.

131
Non-FE Discussion Forum / Re: Is there on the internt a small block engne forum?
« on: December 13, 2023, 10:57:35 AM »
Quote from: Heo on December 13, 2023, 10:36:28 AM
Blykins just curious, you that have built a few sbf what hp
do you guess i had in that. 030 over flatops ,10.5 CR
Ported milled 66 289HP heads with 1.90 1.6 valves. 308 deg/ 510 lift cam
think it vas 262 at .050 lift edelbrock performer rpm 650 dp holley
Hooker super comp headers, good machine jobs.  375??

That's a whole lot of cam for the displacement, head, and intake, I would think 375 would be on the high side. 

132
FE Technical Forum / Re: FE Crank
« on: December 13, 2023, 09:47:41 AM »
That’s about right for a Bryant or Winberg right now.

133
Non-FE Discussion Forum / Re: Is there on the internt a small block engne forum?
« on: December 13, 2023, 05:51:09 AM »
Quote from: Heo on December 12, 2023, 04:24:14 PM
How good or bad is a later 5.0 Rollercam block?

It's a craps shoot.  Sometimes they go a long time, sometimes they split immediately.   I've had one, built into a 540hp 347, that's been in the customer's bracket car since about 2010.  Been freshened up once.  It's survived hundreds of passes, with 5500 rpm clutch drops and 7000 rpm shifts. 

This little baby is also a later model Explorer roller block, 311 cubic inches, 540 hp @ 7400 rpm. 


134
Non-FE Discussion Forum / Re: Is there on the internt a small block engne forum?
« on: December 13, 2023, 05:46:46 AM »
Yes, they do.  The outside perimeter bolts are not 1/2".   It's a nice feature, but there's only 1-2 cylinder heads that have provisions to be bolted down like that. 

135
Non-FE Discussion Forum / Re: Is there on the internt a small block engne forum?
« on: December 12, 2023, 03:34:10 PM »
World block:



FRPP Boss block:






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