My very slow stroker progress

[Warsteiner]

Joe,

Is that what they had suggested for best all around power and torque for you? Just curious...

Cheers,
~Ralph

[wazzu70]

The 268/267 have a more aggressive lobe profile and higher lift. Look at the duration at 1cm to compare. At TDC you can see the 268/267 have more valve lift too for better scavenging.

Let us know how they work out for you!

[shady62]

Ralph

They recommended me these or the 1301415 for my build after explaining boring out and the +1mm inlet/outlet and porting. I just smiled and agreed, what's your views? Be brutal if needs be I'm keen for opinions especially being novice to camshaft tech.

[wazzu70]

The cams you are getting will be nice aggressive street cams. I think 1301415 would be a little more aggressive than most prefer.

If it was a track car only the 415 would be a good choice.

With both sets of cams, be sure to check piston to valve clearance as they are pretty high lift.

[Warsteiner]

I agree with wazzu. This should be a nice street set up.

Let us know how the car feels.

Cheers,
~Ralph

[shady62]

Will do, the block hasn't been bored yet so will be making sure the guys machining it bear that in mind. It's annoying that there isn't the type of machine shop I need on the island i live, as I am a machinist by trade and I would do anything to do the machining myself. The shop that used to have a block boring machine over here sold it because he never used it. I'll post up some pics as soon as the camshafts arrive. Need to get my photos from my old phone uploaded onto photobucket, got a nice pic by pic storyline of the sunroof delete I did last spring, would make a good write up.

Will put some more updates on soon. Hopefully be sticking my coil on plug conversion on over next couple of weeks, also taking a couple of days off either side of the weekend of 20th Feb to get current engine out, replace rad carrier panel, front valance, and prep engine bay for a nice new coat of paint. Oooh also need to fit the present my Mrs bought me for Christmas AKG mono wiper system.

Lots to do, I find spending long periods of time working in my workshop very therapeutic.

Cheers lads
Joe

[wazzu70]

The block boring will not impact the piston to valve clearance. You need to make sure the valve reliefs in the piston are the proper depth. This problem will be worse if you shave some material off the piston crown which I think is necessary when using the S50 pistons.

[Warsteiner]

I agree with wazzu again.  You should talk to CAT cams and ask them if these cams work on a stock motor or if there is a specific valve timing event they require. I know that Euro pistons have pretty deep reliefs and you're shaving a minimal amount off. Another trick could be to shave the required for a 1.74mm HG and then actually use the 2.04mm. That will give .30mm of more clearance but will lower your compression slightly. Talk to your builder. They should be doing all these calculations for you!!

Cheers,
~Ralph

[shady62]

Yeah sorry boys, what I meant was, as the block hasn't been machined, the pistons haven't either so when all machining is getting done i will be ensuring the reliefs on the pistons will be machined to the tolerance stated by cat cams (as these wouldn't work with a stock motor). I'll be taking the head and timing gear with me so they can build it up as the machining is done. I believe on the detailed tech sheets for the camshafts there is the relevant clearance data I need. Might as well have them completely build her up ready to be lowered in.

[Darky]

Hi

Lots to do, I find spending long periods of time working in my workshop very therapeutic.

Yep!

Why did you delete your sunroof?

Cheers Rohan

[shady62]

Hello rohan

Uploaded all the pics to photobucket last night so might start a write up tonight while mrs is at the gym. Keep an eye out for it.
The main reason I got rid of it was the sunroof cassette was absolutely rust filled beyond repair, I didn't fancy shelling out to buy a new one and also just to remove the potential source of many future problems. If it had been mint I would have kept it for sure but the rusty cassette had also propagated a nasty hole in the roof that required cassette removal to fix.

[shady62]

Write up is over on exterior section rohan

[shady62]

little update!

Cams turned up in the post today! very pleased. quality looks great and the level of service from Catcams was fantastic to say the least.




will keep thread updated as i go...

[Nicolai-Denmark]

little update!

Cams turned up in the post today! very pleased. quality looks great and the level of service from Catcams was fantastic to say the least.




will keep thread updated as i go...

Any updates?