Topic: Y8 cam/spring ? (Read 10913 times)

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

Joseph Davis · « **Reply #1 on:** July 26, 2010, 04:14:01 PM »

Better pictures, please.

Measure base circle and lobe heights of cam pls.

92CXyD · « **Reply #2 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

Originally got this info from: 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

1slow91hf · « **Reply #3 on:** July 26, 2010, 05:03:00 PM »

slightly better pics

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

crttaz · « **Reply #4 on:** July 26, 2010, 05:32:59 PM »

max height numbers are all wrong

1slow91hf · « **Reply #5 on:** July 26, 2010, 06:52:37 PM »

thanks for catching my fuck up bone

corrected spec posting

chris · « **Reply #6 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.

jagojon3 · « **Reply #7 on:** July 26, 2010, 07:24:31 PM »

Chris is right. I only needed a compressor to install new ones.

92CXyD · « **Reply #8 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. $:-\$

1slow91hf · « **Reply #9 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

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

ApexSilver06MR · « **Reply #10 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!

crttaz · « **Reply #11 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.

DasPoop · « **Reply #12 on:** July 27, 2010, 04:00:22 PM »

Quote from: 1slow91hf on July 26, 2010, 05:03:00 PM

slightly better pics

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.

1slow91hf · « **Reply #13 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

92CXyD · « **Reply #14 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

DasPoop · « **Reply #15 on:** July 27, 2010, 05:41:21 PM »

p08 cam ftmfw made 15 more wheel over a stock y8

Joseph Davis · « **Reply #16 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?

DasPoop · « **Reply #17 on:** July 27, 2010, 06:24:06 PM »

yes iirc it was 4 when i degreed it it

Joseph Davis · « **Reply #18 on:** July 27, 2010, 08:23:50 PM »

Post more sub-par porn lest I become angered by you.

DasPoop · « **Reply #19 on:** July 27, 2010, 09:32:36 PM »

perhaps little more your style

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Author Topic: Y8 cam/spring ? (Read 10913 times)

chris