Ben

iTrader: (33)

Picked up a set of webcams 505 for my 1.6

Specs here (second from top)
http://www.webcamshafts.com/pages/mazda-auto.html

OEM cam specs here
http://members.aol.com/solomiata/cams.html

What do you guys think? Hot or not?

kotomile

iTrader: (24)

I thought you were trying to build a 1.8? Or is this for the hail mary run for the 1.6/Greddy?

Ben

iTrader: (33)

The cams came up for a good price, and I have to stay ahead of Jerry.
From what I read, I need more lift (which these provide).

y8s

iTrader: (8)

i was just looking at that same page the other day wondering what they could do for a 2001 head.

paul

iTrader: (21)

i was very nervous about opening this thread.

Mach929

iTrader: (3)

should work out nice, from what i know a turbo likes more lift and not too much duration, so should work out nice. I'm very happy to see someone trying cams on these motors. are you going to be doing anything else in the head?

cjernigan

iTrader: (13)

Just saw the ad, you only paid $100 plus shipping for them?

Atlanta93LE

iTrader: (5)

Nice grab. If you need help with the install, you know who to call. I'd love to help tear into a head.

Ben

iTrader: (33)

Thanks Ben. I'll probably go ahead and pick up a WP, and all the related errata involved to do a full tb job, as long as the timing belt is coming off anyway.

CJ, yeah, figured I could always get my money back out of them.

neogenesis2004

iTrader: (12)

Should give you a little better top end for sure. Put them in tonight and get a dyno at jerry's tomorrow

Ben

iTrader: (33)

I don't have them in my hands yet.

I was considering installing the exhaust cam 1 tooth retarded from stock. Thoughts? I don't want to put money into 1.6 cam gears.

neogenesis2004

iTrader: (12)

I was under the impression that 1.6 and 1.8 cam gears were the same. I know fidanza only lists one part number, thats what I have. You can get them on ebay for a good price.

Atlanta93LE

iTrader: (5)

I've heard you can get limited adjustability by tweaking/drilling the stock gears.

neogenesis2004

iTrader: (12)

I'll let you do it first :P

mikef85

iTrader: (7)

Would you rather advance the exhaust cam 1 tooth to reduce overlap?

Ben

iTrader: (33)

Yes, I was thinking backwards. I'd want to advance the exhaust cam 1 tooth.

I'm not finding good info on cam timing. I assume I could reduce overlap the same amount by retarding the intake cam by 1 tooth. Right? What would be the theoretical difference between those two plans?

I'm really going for more midrange torque over more upper end hp.

Ben

iTrader: (33)

yaaay, finally here

the engravings in the second pic are hard to see, but they say webcams 505+2

Lift on these puppies is .352
Duration @ .050 is 200/205
Stock cams are lift .309
Duration @ .050 is 192/204

So not a huge change, as these are designed to work with the stock valve train, but the extra 1.1mm lift should help spool.

<edit> aww dammit, the attachments failed because I'm out of space :(

Ben

iTrader: (33)

Bryce

iTrader: (24)

Mmmm Target.