Topic: What's my compression? (Read 4372 times)

Joseph Davis · « **on:** April 14, 2009, 11:08:53 PM »

"D16Y5 Type-R," 12.5:1 CR SOHC. Basically a GX with an HX cam. I pulled one spark plug and cranked with the other three in place @ WOT. Guess.

d112crzy · « **Reply #1 on:** April 14, 2009, 11:11:53 PM »

crttaz · « **Reply #2 on:** April 14, 2009, 11:12:30 PM »

I know what it should be with a Y8 cam

dvst8r · « **Reply #3 on:** April 14, 2009, 11:14:23 PM »

I guessed 210psi

BangBusMaster · « **Reply #4 on:** April 14, 2009, 11:16:58 PM »

ratcityrex · « **Reply #5 on:** April 14, 2009, 11:19:29 PM »

to fitty

chris · « **Reply #6 on:** April 14, 2009, 11:21:33 PM »

over 270

j.h.christ · « **Reply #7 on:** April 14, 2009, 11:27:35 PM »

over 9000

patsmx5 · « **Reply #8 on:** April 14, 2009, 11:54:29 PM »

I calculated 265.23 PSI

BoostedSchemes · « **Reply #9 on:** April 14, 2009, 11:57:35 PM »

0, its a trick question he blew a window in the piston

Teg2boo · « **Reply #10 on:** April 15, 2009, 12:02:09 AM »

1 dollar!

I voted 240psi.

spoonfedcrx · « **Reply #11 on:** April 15, 2009, 12:19:45 AM »

Joseph Davis · « **Reply #12 on:** April 15, 2009, 02:20:26 AM »

260. I had a nifty pic but my stolen internets went down again.

shadow · « **Reply #13 on:** April 15, 2009, 02:22:17 AM »

bout tree fitty

crttaz · « **Reply #14 on:** April 15, 2009, 02:52:21 AM »

Quote from: Joseph Davis on April 15, 2009, 02:20:26 AM

260. I had a nifty pic but my stolen internets went down again.

winner winner chicken dinner.

SOHCKLR657 · « **Reply #15 on:** April 15, 2009, 04:17:48 AM »

stealthiskey · « **Reply #16 on:** April 15, 2009, 08:16:29 AM »

250, mulitply CR by 20

patsmx5 · « **Reply #17 on:** April 15, 2009, 08:20:03 AM »

Quote from: patsmx5 on April 14, 2009, 11:54:29 PM

I calculated 265.23 PSI

Quote from: Joseph Davis on April 15, 2009, 02:20:26 AM

260. I had a nifty pic but my stolen internets went down again.

Gauge variance.

sewell94 · « **Reply #18 on:** April 15, 2009, 01:48:45 PM »

You mean this picture??

92CXyD · « **Reply #19 on:** April 15, 2009, 01:57:39 PM »

Hopefully this engine does not eat up your starter b/c of the higher comp. ;D

Used to see it happen with high comp. build v-8's.

BoostForLife · « **Reply #20 on:** April 15, 2009, 02:18:16 PM »

Quote from: 92CXyD on April 15, 2009, 01:57:39 PM

Hopefully this engine does not eat up your starter b/c of the higher comp. ;D

Used to see it happen with high comp. build v-8's.

D series starters are cheap and are all over the place.

Urban Indian · « **Reply #21 on:** April 15, 2009, 02:18:31 PM »

Quote from: danwjmu on April 14, 2009, 11:31:22 PM

230 is my guess

+1

*EDIT* 260 eh, wonder what its going to sound like when your starter is trying to start up and it explodes.

Spiker is to trannys
is what
JD is to Starters

Joseph Davis · « **Reply #22 on:** April 15, 2009, 04:25:12 PM »

Quote from: 92CXyD on April 15, 2009, 01:57:39 PM

Hopefully this engine does not eat up your starter b/c of the higher comp. ;D

She turns over as easy as stock. As far as I know it's the OG 320K mile starter, too. I was caked in filth when I got the car and it's not been changed.

chris · « **Reply #23 on:** April 15, 2009, 05:41:38 PM »

Quote from: 92CXyD on April 15, 2009, 01:57:39 PM

Hopefully this engine does not eat up your starter b/c of the higher comp. ;D

Used to see it happen with high comp. build v-8's.

300 whp big compression all motor h22 spitted out 2 starters

Dr. D-Series · « **Reply #24 on:** April 15, 2009, 06:09:17 PM »

My old d15 w/ milled y8 head and zex 59300 made 235 across the board.

Yours sounds just right.

d112crzy · « **Reply #25 on:** April 15, 2009, 08:27:30 PM »

That's some good numbers. I have 270 across my 11:1 stock bore/cam h23 vtak

Conceptz-X · « **Reply #26 on:** April 15, 2009, 09:01:12 PM »

Quote from: 92CXyD on April 15, 2009, 01:57:39 PM

Hopefully this engine does not eat up your starter b/c of the higher comp. ;D

Used to see it happen with high comp. build v-8's.

Depends greatly on the cam, Wife's stang running 11:1 and timing locked out at 32 degrees cranks perfectly.

HiProfile · « **Reply #27 on:** April 16, 2009, 01:45:21 AM »

Quote from: Joseph Davis on April 15, 2009, 02:20:26 AM

260. I had a nifty pic but my stolen internets went down again.

If you want, I'll make you a high-power WiFi antenna. By high power, I mean roughly 8x for a directional (180*) or 5x as power full (360*) vs the sorry POS that any pci or pcmcia card comes with. Maybe I'll do a write up... :somb:

92CXyD · « **Reply #28 on:** April 16, 2009, 05:55:37 AM »

Quote from: HiProfile on April 16, 2009, 01:45:21 AM

Quote from: Joseph Davis on April 15, 2009, 02:20:26 AM
260. I had a nifty pic but my stolen internets went down again.

If you want, I'll make you a high-power WiFi antenna. By high power, I mean roughly 8x for a directional (180*) or 5x as power full (360*) vs the sorry POS that any pci or pcmcia card comes with. Maybe I'll do a write up... :somb:

A write up would be sweet. ;D

:yes:

Joseph Davis · « **Reply #29 on:** April 16, 2009, 07:17:56 PM »

Antennas aren't poweredful, sir.

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Author Topic: What's my compression? (Read 4372 times)

chris

BoostForLife

chris