Cat cams

[kingfishers2]

Another question!

Ive been offered a head complete with cat cams for a very reasonable price has anyone got these installed? what are your experiences?

[Rusty]

Expensive new, they seem to be similar to the 7A cams on paper. There are some running them on here. They're £700+vat new!

[terrybullwon]

With solid lifters?

[kingfishers2]

It will be with solid lifters but that work is extra, comes with rs2 head and some work already done dont know full details as yet ill post when i know more, the price seems pretty reasonable.

[aelred]

re 7A and Catcams

Expensive new, they seem to be similar to the 7A cams on paper. There are some running them on here. They're £700+vat new!

Andy have you got the 7A time duration etc. and obviously which Catcams are you refering to as they do a few for the Turbo 20V to compare to

[Flat on my back]

.

Got the 7a if you wish to make a visual comparison?

[aelred]

Thanks for the offer

Got the 7a if you wish to make a visual comparison?

Well the visual offer will not work as one is hyd. the other is solid. Thanks anyhow.

[Rusty]

Sort of 7A...

Intake 224
Exhaust 213
lift 10.5mm

catcams 1002335
duration @ 0.1mm 275 / 258°
Duration @ 1.0mm 239 / 224°
Lift 11.50 / 10.00mm
lift @ tdc 2.15 / 0.40mm
valve gear O.E.M.
descr HYDR: rally & cross

Have about <1mm more lift and approx 10 degrees duration per cam but inlet:exhaust ratio is similar. More than likely got a much larger lobe so you get a lot more overall...

This has been discussed here.

[aelred]

Ok Thanks Andy for the info, the ones I have for sale are not the same Catcams that you refer to, so not similar to 7A cams.
I was just reading that link that you mentioned. Thanks for being so prompt.

[Rusty]

Pleasure. I take it your cams require altered valve gear then for the extra lift?

[aelred]

Yes indeed and solid lifters.

[Rusty]

Sounds sweet, should work really well with a turbo that can go to 8k+!

[Audi_CQ]

Sort of 7A...

Intake 224
Exhaust 213
lift 10.5mm

Just as a note: I've measured two sets of 7A cams and they are only 212 on intake. Manuals are wrong stating opening 6 before TDC, should be 6 AFTER TDC making it 212 and not 224.

[gnutz2]

@ Audi CQ

Do you remember at what lift you calculated the durations, 0.1mm or 1mm, or imperial like 4thou or 40 thou.

This will make it possible to compare audi cams to, say catcams or dbilis and the like.

But if they got the 7A duration and timing wrong, who says they did'nt get all the others mixed up.

[Audi_CQ]

@ Audi CQ

Do you remember at what lift you calculated the durations, 0.1mm or 1mm, or imperial like 4thou or 40 thou.

1mm as most do in Europe.