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-   -   Boost vs. Compression Table (https://honda-tech.com/forums/forced-induction-16/boost-vs-compression-table-376272/)

94TealGSR Jan 4, 2003 05:55 PM

Boost vs. Compression Table
 
I borrowed this table from team-integra.net (thanks BoostControl). I'm curious as to how one would calculate this table. I'm looking to carry it out a bit further (say to 11:1 compression). Anyone got any thoughts as to how to calculate it, or just thoughts on the table in general?

http://www.a-ocs.com/chris/boost_table.gif

This is the link the page on team-integra.


[Modified by 94TealGSR, 10:02 PM 1/4/2003]

94TealGSR Jan 4, 2003 10:11 PM

Re: Boost vs. Compression Table (94TealGSR)
 
https://honda-tech.com/forums/images/smilies/emthup.gif

Boltz Jan 4, 2003 10:13 PM

Re: Boost vs. Compression Table (94TealGSR)
 


easy just take

BOOST LEVEL / 14.7 = ____ + 1 = ____ * COMPRESSION RATIO = that number, called effective compression


vtec.dc2 Jan 4, 2003 10:14 PM

Re: Boost vs. Compression Table (94TealGSR)
 

I borrowed this table from team-integra.net (thanks BoostControl). I'm curious as to how one would calculate this table. I'm looking to carry it out a bit further (say to 11:1 compression). Anyone got any thoughts as to how to calculate it, or just thoughts on the table in general?

http://www.a-ocs.com/chris/boost_table.gif

This is the link the page on team-integra.


[Modified by 94TealGSR, 10:02 PM 1/4/2003]

if does say for non-intercooled, my compression seems to be way out of safe zone for that graph, its not even on there...

Boltz Jan 4, 2003 10:17 PM

Re: Boost vs. Compression Table (94TealGSR)
 
btw, the BS-o-meter is off the charts...
for example lets say stock greddy kit for a 95 civic non intercooled...
5.5psi / 14.7 + 1 * 9.6cr = 13.2 effective compression.... so that means the civic geddy kit is unsafe https://honda-tech.com/forums/images...s/emhammer.gif and that you would have to buy a boost controller and turn the greddy kit down to 2psi to make sure its safe https://honda-tech.com/forums/images...s/emhammer.gif https://honda-tech.com/forums/images...s/emhammer.gif

my .02

94TealGSR Jan 5, 2003 09:48 AM

Re: Boost vs. Compression Table (Civic420)
 

btw, the BS-o-meter is off the charts...
for example lets say stock greddy kit for a 95 civic non intercooled...
5.5psi / 14.7 + 1 * 9.6cr = 13.2 effective compression.... so that means the civic geddy kit is unsafe https://honda-tech.com/forums/images...s/emhammer.gif and that you would have to buy a boost controller and turn the greddy kit down to 2psi to make sure its safe https://honda-tech.com/forums/images...s/emhammer.gif https://honda-tech.com/forums/images...s/emhammer.gif

my .02
Yeah, I'm not really interested in what this guy considers safe... I'm more interested in what my effective compression would be. I agree, the "safe zone" numbers seeem a tad conservative.

I Like Boost Jan 5, 2003 11:11 AM

Re: Boost vs. Compression Table (94TealGSR)
 
who in there right mind runs non-intercooled setups anyways

avividmemory Jan 5, 2003 11:43 AM

Re: Boost vs. Compression Table (BEe18SeAONe)
 

who in there right mind runs non-intercooled setups anyways
people who buy the non-intercooled greddy kit https://honda-tech.com/forums/images/smilies/embeer.gif

Jared Jan 5, 2003 01:28 PM

Re: Boost vs. Compression Table (Civic420)
 

btw, the BS-o-meter is off the charts...
for example lets say stock greddy kit for a 95 civic non intercooled...
5.5psi / 14.7 + 1 * 9.6cr = 13.2 effective compression.... so that means the civic geddy kit is unsafe https://honda-tech.com/forums/images...s/emhammer.gif and that you would have to buy a boost controller and turn the greddy kit down to 2psi to make sure its safe https://honda-tech.com/forums/images...s/emhammer.gif https://honda-tech.com/forums/images...s/emhammer.gif

my .02
boost controllers can not turn down boost. they can only raise it.

Boltz Jan 5, 2003 07:38 PM

Re: Boost vs. Compression Table (Jared)
 
never knew that, but now that my dumbass realizes. it makes sense.

pub Jan 5, 2003 08:27 PM

Re: Boost vs. Compression Table (Civic420)
 
Yeah, I actually had a discussion with that guy. He's really conservative when it comes to boost. He was suggesting to somebody to not run higher than 7psi on a b18b with 9.0:1 pistons, eagle rods, 220lph fuel pump, on a tuned s-afc hack with 450's.

And then only ~12 psi once it's sleeved. https://honda-tech.com/forums/images...s/emhammer.gif

BudaKai Jan 5, 2003 08:53 PM

Re: Boost vs. Compression Table (pub)
 
I wonder why so many people are afraid to run higher boost?


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