:::RHMT::: Real Home Made Turbo

General Category => Hybrid/Tech => Topic started by: 1slow91hf on July 26, 2010, 03:49:53 PM

Title: Y8 cam/spring ?
Post by: 1slow91hf on July 26, 2010, 03:49:53 PM
was given a 95% complete Y8 head for doing work on a kids car
he told me it had an aftermarket cam/valve springs in it of unknown brands

best way to spec/check these and try to find out what they are

shitty cell phone pics for basic info

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi85.photobucket.com%2Falbums%2Fk77%2Fjokersking69%2Fp_00100.jpg&hash=d2a4a37e72e7e6d5ccbc5c207a82bbfdd95721d7)
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Title: Re: Y8 cam/spring ?
Post by: Joseph Davis on July 26, 2010, 04:14:01 PM
Better pictures, please.

Measure base circle and lobe heights of cam pls.
Title: Re: Y8 cam/spring ?
Post by: 92CXyD on July 26, 2010, 04:14:13 PM
Measure the valve spring free height, coil thickness, and cam lobe profile specs. :?:

For the cam profile specs.
Compare to my thread: http://www.realhomemadeturbo.com/forum/index.php?topic=14562.0 (http://www.realhomemadeturbo.com/forum/index.php?topic=14562.0)

Originally got this info from: http://causeforalarm.thecarthing.com/version6/version6.EG/3-stage_VTEC/index.html (http://causeforalarm.thecarthing.com/version6/version6.EG/3-stage_VTEC/index.html)

For the stock valve spring info post up and I'll look at my spare parts and compare. ;D


Title: Re: Y8 cam/spring ?
Post by: 1slow91hf on July 26, 2010, 05:03:00 PM
slightly better pics  :?:

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi85.photobucket.com%2Falbums%2Fk77%2Fjokersking69%2FRCA_0049.jpg&hash=f2fa412a66d66c3a51e57c02bb0db922ebdb3bdc)

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi85.photobucket.com%2Falbums%2Fk77%2Fjokersking69%2FRCA_0050.jpg&hash=936886ede05e5c375591ab679852e93527f8cc2a)

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measurements that i got
going from top down according to pics
base #s
lobe
#1/5= 1.365
#2/4= 1.223
#3= 1.236

lobe measurements at max height
1=1.585
2=1.410
3=1.517
4=1.402
5=1.585

unable to get spring dia/height till i get my hands on a compressor
Title: Re: Y8 cam/spring ?
Post by: crttaz on July 26, 2010, 05:32:59 PM
max height numbers are all wrong
Title: Re: Y8 cam/spring ?
Post by: 1slow91hf on July 26, 2010, 06:52:37 PM
thanks for catching my fuck up bone  :-*
corrected spec posting
Title: Re: Y8 cam/spring ?
Post by: chris on July 26, 2010, 07:05:45 PM
You dont need a compressor to get the springs out. 1/2 inch long extension+heavy hammer. Couple good hits spring will come loose.
Title: Re: Y8 cam/spring ?
Post by: jagojon3 on July 26, 2010, 07:24:31 PM
Chris is right. I only needed a compressor to install new ones.
Title: Re: Y8 cam/spring ?
Post by: 92CXyD on July 26, 2010, 08:04:02 PM
                                                                              your cam measurements
D16Y8 (stock)      Cam Lobe Heights   mm        in              in   
                           Primary              36.778   1.4479        1.410
                                Mid              38.274   1.5068        1.517
                         Secondary           37.065   1.4592        1.402
                          Exhaust             38.008   1.4964        1.585

Looks like stock or worn stock depending on your measurements. :-\
Title: Re: Y8 cam/spring ?
Post by: 1slow91hf on July 27, 2010, 12:38:54 AM
well it looks like the cam is going to get shipped out when i send this this to chris for a lil magic work  :noel:

whats the group theory of the delta 282 grind or something stronger then the 272 without spending like $350 on a cam  Jew
it will be NA fail for a while then going boost down the road
Title: Re: Y8 cam/spring ?
Post by: ApexSilver06MR on July 27, 2010, 02:24:18 AM
crower FTMFW!!!!!

Quote from: jagojon3 on July 26, 2010, 07:24:31 PM
Chris is right. I only needed a compressor to install new ones.

zip ties!
Title: Re: Y8 cam/spring ?
Post by: crttaz on July 27, 2010, 03:57:21 AM
common knowledge on regrinds, don't get to small on the base circle that you have issues with lash adjusters.

For example ZEX 59300 uses smaller base circles and thus has the rattle noise even though it is not a regrind.
Title: Re: Y8 cam/spring ?
Post by: DasPoop on July 27, 2010, 04:00:22 PM
Quote from: 1slow91hf on July 26, 2010, 05:03:00 PM
slightly better pics  :?:

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi85.photobucket.com%2Falbums%2Fk77%2Fjokersking69%2FRCA_0049.jpg&hash=f2fa412a66d66c3a51e57c02bb0db922ebdb3bdc)

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi85.photobucket.com%2Falbums%2Fk77%2Fjokersking69%2FRCA_0050.jpg&hash=936886ede05e5c375591ab679852e93527f8cc2a)

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi85.photobucket.com%2Falbums%2Fk77%2Fjokersking69%2FRCA_0051.jpg&hash=2fb20e0896445c2271469b78833af5004b3c4fef)

measurements that i got
going from top down according to pics
base #s
lobe
#1/5= 1.365
#2/4= 1.223
#3= 1.236

lobe measurements at max height
1=1.585
2=1.410
3=1.517
4=1.402
5=1.585

unable to get spring dia/height till i get my hands on a compressor


that cam looks like a new billet I thought stock sohc vtec cams were lobes pressed onto a solid rod.
Title: Re: Y8 cam/spring ?
Post by: 1slow91hf on July 27, 2010, 05:20:14 PM
another thing that made me think it was an aftermarket is the fact of the sides of the cam lobes are rough not smooth and its the first one ive seen like that  ???
Title: Re: Y8 cam/spring ?
Post by: 92CXyD on July 27, 2010, 05:34:24 PM
Quote from: 1slow91hf on July 27, 2010, 05:20:14 PM
another thing that made me think it was an aftermarket is the fact of the sides of the cam lobes are rough not smooth and its the first one ive seen like that  ???

All of my z6 and y8 cams have little rough edges.

My z7 cam looks a little bit bigger and smoother. ;D
Title: Re: Y8 cam/spring ?
Post by: DasPoop on July 27, 2010, 05:41:21 PM
p08 cam ftmfw made 15 more wheel over a stock y8
Title: Re: Y8 cam/spring ?
Post by: Joseph Davis on July 27, 2010, 06:08:29 PM
Quote from: DasPoop on July 27, 2010, 05:41:21 PM
p08 cam ftmfw made 15 more wheel over a stock y8

You realise that's a USDM profile shifted a couple degrees off?
Title: Re: Y8 cam/spring ?
Post by: DasPoop on July 27, 2010, 06:24:06 PM
yes iirc it was 4 when i degreed it it
Title: Re: Y8 cam/spring ?
Post by: Joseph Davis on July 27, 2010, 08:23:50 PM
Post more sub-par porn lest I become angered by you.
Title: Re: Y8 cam/spring ?
Post by: DasPoop on July 27, 2010, 09:32:36 PM
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