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> 5sfe compression
post Sep 13, 2004 - 5:52 PM
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fastgt



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i know this has been asked somewhere but i cant seem to find it....but does anyone know what the compression is supposed to be at for out motors.....and whats considered low and unsafe?


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post Sep 13, 2004 - 6:19 PM
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recneps

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im pretty sure its around 60 and anything more than 10 over or under that is bad.


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Former: 96 GT 5 speed (i/p/e) Fate- rear ended by mack truck
00 GTS 6 speed (i/ Bored TB 63mm - 68.5mm w/ butterfly/ Ported IM/ IMG/ PFC/ Commander/ datalogit/ Ported & heat wrapped Header/ Decat/ UEGO/) 193FWHP 14.2(1/4mi) @98mph, 2.12 60ft (just intake, unbolted Exhaust, and gutted) Fate- side swipped by 18 wheeler at 75mph.

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post Sep 13, 2004 - 6:21 PM
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chucho



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i belive 9.5:1 is the compression, 8.5:1 is what you can buy for the low compression setups for turbos, if your talking pistons

This post has been edited by chucho: Sep 13, 2004 - 6:21 PM
post Sep 13, 2004 - 6:25 PM
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recneps

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wait are you talking about the compression ratio or when your doing a compression test?


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Former: 96 GT 5 speed (i/p/e) Fate- rear ended by mack truck
00 GTS 6 speed (i/ Bored TB 63mm - 68.5mm w/ butterfly/ Ported IM/ IMG/ PFC/ Commander/ datalogit/ Ported & heat wrapped Header/ Decat/ UEGO/) 193FWHP 14.2(1/4mi) @98mph, 2.12 60ft (just intake, unbolted Exhaust, and gutted) Fate- side swipped by 18 wheeler at 75mph.

Next: maybe an elise
post Sep 13, 2004 - 6:33 PM
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fastgt



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my bad...i mean compression test....why is it bad if its over?


--------------------
2011 Spice Orange Mini Cooper
2011 Alpine White BMW E92 M3

gone but not forgotten
2008 Space Grey BMW Z4 ///M
2009 Black Honda Civic LX Coupe
2006 Magnetic Black Nissan 350Z
2007 Crimson Red BMW 335i Coupe
post Sep 13, 2004 - 7:47 PM
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recneps

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i think i had the right idea i just worded it wrong. all pistons should be within 10 of each other. and i think they should still be around 60.

hopefully someone with a little more knowledge will jump in here.


--------------------
Former: 96 GT 5 speed (i/p/e) Fate- rear ended by mack truck
00 GTS 6 speed (i/ Bored TB 63mm - 68.5mm w/ butterfly/ Ported IM/ IMG/ PFC/ Commander/ datalogit/ Ported & heat wrapped Header/ Decat/ UEGO/) 193FWHP 14.2(1/4mi) @98mph, 2.12 60ft (just intake, unbolted Exhaust, and gutted) Fate- side swipped by 18 wheeler at 75mph.

Next: maybe an elise
post Sep 13, 2004 - 7:51 PM
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pxcr440

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i just tested mine the other day and it was 150 across the board
post Sep 13, 2004 - 7:52 PM
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pxcr440

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its liek 25% from highest to lowest and should be after 4 or 5 cranks atleast
post Sep 13, 2004 - 7:55 PM
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rjbibeau



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you can squirt like 2-3 drops of oil in there and the pressure will increase if you have good compression if you don't have good compression it won't increase


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post Sep 13, 2004 - 8:26 PM
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OOBE

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I'll chime in with my compression test, even though it's a 7A-FE but maybe someone will find it useful. It was 211, 210, 210, 210 before turbo, After turbo is 211, 210, 90, 210. tongue.gif


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QUOTE (SinisterSinner @ Dec 19, 2009 - 10:52 AM) *
I dont want to even think of turbos, they blow up way too often...
post Sep 13, 2004 - 10:37 PM
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rjbibeau



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90 ohh man that's way low


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post Sep 13, 2004 - 10:43 PM
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97sccelica



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QUOTE (rjbibeau @ Sep 13, 2004 - 7:37 PM)
90 ohh man that's way low

heh

my number 2 piston was at 0psi

always, always upgrade the fuel pump


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