What cams are you guys running with .030 milled AFR 205s and uncut pistons?

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03-21-2006, 08:41 PM

#21

Ksett

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Quote:

Originally Posted by tru_ice

I'm just about to order a set (61cc) w/ .040 gaskets.

I'll be running them w/ 228/288 .588/.588 114. That should put my CR right at 11.1:1, w/ a quench of about .033.

What do you think Tony? Does that sound like an adequate setup?

I think your CR calculation is off if you aren't doing valve reliefs. You may want to recheck if this is the case.

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03-21-2006, 08:44 PM

#22

ArKay99

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Quote:

Originally Posted by CKZ

With a stock shortblock, unmilled AFR 205s, and .04 Cometics..what will compression be?

Also, how will this fare with a 224/228 .581/.588 112 cam

Thanks

As a suggestion, go with AFR's milled .024", a cometic .040" gasket, and a 224/228 .581"/.588" 114lsa +1. It's a killer combo that will put you over 410rwhp with tons of low end torque and you won't have to notch, and you can run 93 pump gas all day long. A freind of mine has that in his vette and it's sweet. It's been easy to tune, much easier than my 112 and there is a little wider power band. Keep that quench tight and the DCR up there.

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03-21-2006, 09:19 PM

#23

93ChevExt5.7

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Where's that envelope - I'm pushing it:

G5X2 - 232/240&.595/.608 with 114LSA with 59cc AFR 205s along with Cometic .040

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03-21-2006, 09:26 PM

#24

Layn_Low_247

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Quote:

Originally Posted by Ksett

I think your CR calculation is off if you aren't doing valve reliefs. You may want to recheck if this is the case.

What do you get?

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03-21-2006, 09:47 PM

#25

Ksett

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Quote:

Originally Posted by tru_ice

What do you get?

I'm getting 11:5 with no valve reliefs cut.

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03-21-2006, 10:22 PM

#26

Layn_Low_247

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Quote:

Originally Posted by Ksett

I'm getting 11:5 with no valve reliefs cut.

I'm getting 11.1 on this one.

http://www.c5frc.com/calculators/Com...Calculator.htm

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03-21-2006, 10:58 PM

#27

zipdog

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Quote:

Originally Posted by zipdog

More like 11.45 with a stock shortblock.

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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03-21-2006, 11:39 PM

#28

Layn_Low_247

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Quote:

Originally Posted by zipdog

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Did you all try out that link? It seems that's it's off then, what tool are you all using?

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03-22-2006, 02:06 AM

#29

PREDATOR-Z

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http://www.rbracing-rsr.com/compstaticcalc.html

This is the correct link

The other doesn't account for the piston OUT of hole situation which should be entered as a negative value.

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03-22-2006, 02:30 AM

#30

PREDATOR-Z

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~11.5:1
depending ont pisto to deck position, I put in an average of (-.007)

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03-22-2006, 10:02 AM

#31

Ksett

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Quote:

Originally Posted by tru_ice

I'm getting 11.1 on this one.

http://www.c5frc.com/calculators/Com...Calculator.htm

I tried your link, you have to subtract .007 for piston out of the whole from the gasket of .040 which equals .033 and use .0001 for deck height.

Last edited by Ksett; 03-22-2006 at 10:08 AM.

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03-22-2006, 10:44 AM

#32

92SilverSHO

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hey guys, im thinking about getting the afr 205s and then milled to 030, but im looking for 430rwhp. What Cam is good, im glad i caught this thread. is that possible, it seems you can only run a cam at around a 224? i wanted a 112 lsa though.

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03-22-2006, 10:48 AM

#33

Tony Mamo @ AFR

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Quote:

Originally Posted by 92SilverSHO

Why not just run our 224/228 proven combination??

It will easily make the power you are looking for, especially if you mill the heads for additional CR. There are dozens of independent results with that cam making the power you are looking for.

Tony M.