gs-r block-b16 head?

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Sep 8, 2002 | 09:46 PM

#21 (permalink)

Silver EG

The Mole

Joined: Nov 2001

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yes, thats whats in my old car that bill has

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Sep 9, 2002 | 06:27 AM

#22 (permalink)

_Charles_

formerly 'RiceRocket'

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Quote:

Originally posted by "CronicBurn"

Thanks for the info... How does the head raise compression by adding cc's to the head... How did you figure it would raise compression by .2cc? What formula or what not did you use?

Thanks.

By adding CC's to the head, you LOWER compression. Compression is figured on the volume of air compressed during the stroke.

Try This:

Compression Ratio = Vbdc = Vcyl + Vpc + Vdh + Vcch_
....................................Vtdc.......... ........Vpc + Vdh+ Vcch
..................................2............... ....................2
which equals II(B/2)_ S + Vpc+ Vpc + II(B/2) _D +Vcch_
.............................................2
..........................Vpc + II(B/2) XD + VcchWhere:
B = bore,
S = stroke,
Vbdc = volume at bottom dead center,
Vtdc = volume at top dead center,
Vcyl = total cylinder volume,
Vpc = volume of piston crown,
Vdh = volume of deck height,
Vcch = volume of combustion chamber in head,
D= deck height.

After you think you got that figured out, go search the web for a "CR calculator" like http://www.smokemup.com/auto_math/compression_ratio.php

Quote:

Also, it's common knowledge that the ITR head is mildly ported and pollished... but 5.25% Where did you get this?

I stated that a B16a head flows 5.25% better than a B18c1 head, NOT a B18c5 head. These numbers? Flowbench.

Quote:

Also If the ITR has the same cc's as the Si(B16a)... Then how would it not raise compresion by .2cc?

Here is what I said: Btw: the B16 head flows 5.25% better than the B18c1 head. The B18c5 flows better than the B16, but it doesn't raise the CR any.

The b18c5 flows better than the B16, but it doesn't raise the CR any (compared to the B16!) Understand now?

Charles

[/quote]

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Sep 9, 2002 | 07:11 AM

#23 (permalink)

Cronic

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Okie. As I have not saved the formulas and such. Thanks.
As you quoted you said. "Doesn't raise the cr any". By any would mean compared to original. At least that's how I took it.

Thanks for your info, altho you seem to be a little condecending about this.

Sep 9, 2002 | 05:25 PM

#24 (permalink)

_Charles_

formerly 'RiceRocket'

Joined: Jun 2000

Posts: 5,691

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Quote:

Originally posted by "CronicBurn"

Okie. As I have not saved the formulas and such. Thanks for your info, altho you seem to be a little condecending about this.

Maybe a little on this subject. There is nothing wrong with you asking such a question, but expecting someone to hand the answer to you is something entirely different (especially when you want such an exact answer). Next time, try www.google.com , and do some of the leg work. All the information is on the net.

Charles

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1953 Cadillac Coupe De Ville (Fuel Injected, Drive-by-wire, DoD)
2009 Pontiac G8 GT (6.0l V8 Sleeper)
2011 Toyota Sequoia Sport 4x4 (Tow Rig)
My Blog: www.HotRodCaddy.com

Sep 10, 2002 | 04:30 AM

#25 (permalink)

Cronic

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Granted, I did go to google. Unfortunatly I had no idea what I was looking for.
I didn't think to look for a "compression calculator". Nor do I have enough knowledge about the engines to fill in the blanks.

Sep 10, 2002 | 10:20 AM

#26 (permalink)

FerioVtec94

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thats what this forum is for, i dont see why he should have to look it up with google........although thats what i usually do

Sep 11, 2002 | 10:34 AM

#27 (permalink)

IOwnUBowDown

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Joined: Sep 2002

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Blah Blah Blah Blah.....

When you got a car with these characteristics... Look me up.... 4.25 @250 baby....

Especially you feriotechbia.

FMF

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Sep 12, 2002 | 01:13 PM

#28 (permalink)

FerioVtec94

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actually i have a b16 head with ctr internals on itr block ....bow down bia

Sep 13, 2002 | 09:27 PM

#29 (permalink)

_Charles_

formerly 'RiceRocket'

Joined: Jun 2000

Posts: 5,691

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Quote:

Originally posted by "CRX/NSXhybrid"

...go to your gm board, and yea there is a couple replacements for displacement...

The saying (from the 60's): There is no replacement for displacement.

The saying (from the 90's): The only replacement for displacement is forced induction.

Class Dismissed

Charles

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1953 Cadillac Coupe De Ville (Fuel Injected, Drive-by-wire, DoD)
2009 Pontiac G8 GT (6.0l V8 Sleeper)
2011 Toyota Sequoia Sport 4x4 (Tow Rig)
My Blog: www.HotRodCaddy.com

Sep 14, 2002 | 10:16 PM

#30 (permalink)

Penis

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Quote:

Originally posted by "RiceRocket"

Quote:

Originally Posted by CRX/NSXhybrid

...go to your gm board, and yea there is a couple replacements for displacement...

The saying (from the 60's): There is no replacement for displacement.

The saying (from the 90's): The only replacement for displacement is forced induction.

Class Dismissed

Charles

someone got straight flammed. it is true though.

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