mk1-forum.net

i give up, i spend my life sorting out warrenty issues because people insist on running piss thin oil and fully synthetic oil on the advice of 'experts' and am still wrong........

im not getting involved anymore

well said mate, i dont go with maids water type oil either, its quite simply sh**

guru_1071 wrote:

im not getting involved anymore

Sometimes that is best

Pete wrote:
SW5 seems to be the best all rounder I'd say and is a useable road cam..

Does anyone have the specs or characteristics of the SW5?

But if you look at my temperature vs viscosity graphs you'll see there is virtually no difference at running temperature. That is what surprised me and why I posted.
I've read the countless posts on 'piss thin oil' but that doesn't work out at 90°C and above. There must be something else to account for any wear differences.

NZmember wrote:But if you look at my temperature vs viscosity graphs you'll see there is virtually no difference at running temperature. That is what surprised me and why I posted.
I've read the countless posts on 'piss thin oil' but that doesn't work out at 90°C and above. There must be something else to account for any wear differences.

,,,,...quite...piper 255 cam,a seriously modded head,h4,s, s crank as is all else lightened and balanced.. 10/40 mobil semi synth...nearly 6 years of running with no probs since a complete rebuild of box and engine.. rolling roaded by peter baldwin jan 2012 and gives 98 bhp at the rubber.!!.. enough said,ill not reply again .. promise

………slight thread resurrection
I am sure someone one here did a spread sheet with all the cams and there respective timings, lifts etc compared. Did I imagine it (quite possible) or can someone point me in the direction of the spread sheet please

Exminiman wrote: ↑Wed Aug 21, 2024 7:13 am ... can someone point me in the direction of the spread sheet please

It's on my server at home, from the reception go upstairs, it's right under the printer

I can look for it tonight if no one has supplied you by then.

....thanks I had already looked there, but must of missed it

Would appreciate if could email a copy, so I can mess about with it, cheers

Exminiman wrote: ↑Wed Aug 21, 2024 7:13 am ………slight thread resurrection
I am sure someone one here did a spread sheet with all the cams and there respective timings, lifts etc compared. Did I imagine it (quite possible) or can someone point me in the direction of the spread sheet please

Not sure if this was the one you were thinking of

'S'-type wrote: ↑Wed Aug 21, 2024 12:05 pm

Exminiman wrote: ↑Wed Aug 21, 2024 7:13 am ………slight thread resurrection
I am sure someone one here did a spread sheet with all the cams and there respective timings, lifts etc compared. Did I imagine it (quite possible) or can someone point me in the direction of the spread sheet please

Not sure if this was the one you were thinking of

Mini Cams.pdf

That could be it thanks - unless anyone knows of another ?

is it available anywhere as a spread sheet ?

That's the only version that I have a copy of. Read only format I'm afraid.

I have this one.

sr001 wrote: ↑Tue Jan 22, 2013 2:21 pm I'm currently running the Calver ST supplied RE13PP (286 ish) and find it very good. It seems to pull a bit cleaner at lower rpm than the 286 too. Using it in very mildly modded engine.

That said, most people i've spoken to who have used the SW5 rave about it.

Thats the cam I asked Keith for but he talked me into a RE130T, reckons its very good, might be binned quickly if it doesn't come up to expectations, it
had a 649 in it before

Exminiman wrote: ↑Wed Aug 21, 2024 8:37 am ....thanks I had already looked there, but must of missed it
Would appreciate if could email a copy, so I can mess about with it, cheers

This is the Excel camshaft data I have stolen somewhere on the internet. It is the same as the one posted above, but with more functionality, like filters and so on.

WARNING: Very colourful spreadsheet
Would be great if someone could add the 8-port cam data

BAD942B wrote: ↑Thu Aug 22, 2024 7:15 am

sr001 wrote: ↑Tue Jan 22, 2013 2:21 pm I'm currently running the Calver ST supplied RE13PP (286 ish) and find it very good. It seems to pull a bit cleaner at lower rpm than the 286 too. Using it in very mildly modded engine.

That said, most people i've spoken to who have used the SW5 rave about it.

Thats the cam I asked Keith for but he talked me into a RE130T, reckons its very good, might be binned quickly if it doesn't come up to expectations, it
had a 649 in it before

I have a brand new RE130t, still in its box, supposed to be good........ was going to use it in an inline engine, but project got moved on. As i understand it this cam was developed by Russell Engineering in Australia, correct springs are quite important as well. My motivation is to try and find a decent cam, just slightly more than a standard S cam, but one that you could also put some miles on.....with minimum mechanical impact on rocker gear train.......well see...

Thanks for the camshaft spread sheets folks, much appreciated, just need to try and understand them now

In case it helps someone else, I found this article on ATPfast website really informative https://cdn.yellowhatweb.com/file/stora ... 4d5d2e.pdf

Worth downloading ASAP, as very sadly Dave Anton died early in the year

Exminiman wrote: ↑Thu Aug 22, 2024 8:44 am

BAD942B wrote: ↑Thu Aug 22, 2024 7:15 am

sr001 wrote: ↑Tue Jan 22, 2013 2:21 pm I'm currently running the Calver ST supplied RE13PP (286 ish) and find it very good. It seems to pull a bit cleaner at lower rpm than the 286 too. Using it in very mildly modded engine.

That said, most people i've spoken to who have used the SW5 rave about it.

Thats the cam I asked Keith for but he talked me into a RE130T, reckons its very good, might be binned quickly if it doesn't come up to expectations, it
had a 649 in it before

I have a brand new RE130t, still in its box, supposed to be good........ was going to use it in an inline engine, but project got moved on. As i understand it this cam was developed by Russell Engineering in Australia, correct springs are quite important as well. My motivation is to try and find a decent cam, just slightly more than a standard S cam, but one that you could also put some miles on.....with minimum mechanical impact on rocker gear train.......well see...

According to Keith's recent comment on an old post that came up on FB, the RE130T made 100lbs ft torque quite low down & 100bhp at around 6500rpm on a single SU (on Damico Racing's dyno ?) and a sports head, 10.5:1 compression ratio, I think it had 1.4 ratio rockers, this on a 1310cc motor but the post has now been taken down, i should have copied the post.
I would like the engine to produce 110 bhp (properly built of course) at around 7k but Keith thinks it would give that

found that post 'A whiffle under 100 bhp and 100 lb ft torque. Massively strong torque from 3,000 to 6,500. ' is what Keith says about that engine, equipped with a 1.75" SU

I have a 1360 with RE13ot, twin HS4 etc, drivable below 2K but pulls very strongly from about 2500. On Tipton RR produced max power of just over 100 and torque just below 100. This is the second engine that I have run with this cam finding it much better for my road going needs than 731, 276 and 286. Years ago found a 997 cooper cam very useable in a 1150 engine.
Steve Miles commented that my 1360 with RE13 OT was much stronger than a very flash mini with 649 that he had just had on the RR.