:::RHMT::: Real Home Made Turbo

General Category => General Discussion => Topic started by: Joseph Davis on April 14, 2009, 11:08:53 PM

Title: What's my compression?
Post by: 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. :)
Title: Re: What's my compression?
Post by: d112crzy on April 14, 2009, 11:11:53 PM: 220
Title: Re: What's my compression?
Post by: crttaz on April 14, 2009, 11:12:30 PM: I know what it should be with a Y8 cam :)
Title: Re: What's my compression?
Post by: dvst8r on April 14, 2009, 11:14:23 PM: I guessed 210psi
Title: Re: What's my compression?
Post by: BangBusMaster on April 14, 2009, 11:16:58 PM: 260
Title: Re: What's my compression?
Post by: ratcityrex on April 14, 2009, 11:19:29 PM: to fitty
Title: Re: What's my compression?
Post by: chris on April 14, 2009, 11:21:33 PM: over 270
Title: Re: What's my compression?
Post by: j.h.christ on April 14, 2009, 11:27:35 PM: over 9000
Title: Re: What's my compression?
Post by: patsmx5 on April 14, 2009, 11:54:29 PM: I calculated 265.23 PSI
Title: Re: What's my compression?
Post by: BoostedSchemes on April 14, 2009, 11:57:35 PM: 0, its a trick question he blew a window in the piston
Title: Re: What's my compression?
Post by: Teg2boo on April 15, 2009, 12:02:09 AM: 1 dollar!

I voted 240psi. :)
Title: Re: What's my compression?
Post by: spoonfedcrx on April 15, 2009, 12:19:45 AM: 0
Title: Re: What's my compression?
Post by: Joseph Davis on April 15, 2009, 02:20:26 AM: 260. I had a nifty pic but my stolen internets went down again.
Title: Re: What's my compression?
Post by: shadow on April 15, 2009, 02:22:17 AM: bout tree fitty
Title: Re: What's my compression?
Post by: crttaz 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.
Title: Re: What's my compression?
Post by: SOHCKLR657 on April 15, 2009, 04:17:48 AM: 750
Title: Re: What's my compression?
Post by: stealthiskey on April 15, 2009, 08:16:29 AM: 250, mulitply CR by 20
Title: Re: What's my compression?
Post by: patsmx5 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.
Title: Re: What's my compression?
Post by: sewell94 on April 15, 2009, 01:48:45 PM: You mean this picture??

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi53.photobucket.com%2Falbums%2Fg62%2Fsewell94%2Fjdcompression.jpg&hash=088a75b47dee3b7c036051975e3dfce1479661e9)
Title: Re: What's my compression?
Post by: 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.
Title: Re: What's my compression?
Post by: BoostForLife 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.
Title: Re: What's my compression?
Post by: Urban Indian 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
Title: Re: What's my compression?
Post by: Joseph Davis 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.
Title: Re: What's my compression?
Post by: chris 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
Title: Re: What's my compression?
Post by: Dr. D-Series 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.
Title: Re: What's my compression?
Post by: d112crzy 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
Title: Re: What's my compression?
Post by: Conceptz-X 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.
Title: Re: What's my compression?
Post by: 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:
Title: Re: What's my compression?
Post by: 92CXyD 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 :noel: :yes: :evil:
Title: Re: What's my compression?
Post by: Joseph Davis on April 16, 2009, 07:17:56 PM: Antennas aren't poweredful, sir.