The V8 Owners Forum -

Well I have the 'old' cam out now and taken a couple of photo's: Seems to be marked on end DJE 218/220 (the DJE may not be quite correct) with a small section wiped out and a couple of small blue marks.
On the side of the cam just before the second (from front) journal there is a white(ish) dot.

Does this prove absolutely that this is a Viper Typhoon or something else?

This is the comparison of the cam measurements:

Interestingly...

Whilst binnin 20+ years of shite, found some paperwork from the RV8 stuff and the DW270 Typhoon cam. Although it's probably readily available anyway

Intake Lobe centre 110deg ATDC
Lobe centre separation 110 camshaft degrees
Duration at 0.050" lift is 221 intake, 215 exhaust
Cam lobe lift is 0.300" to 0.303" on both intake and exhaust

stevieturbo wrote: ↑Tue Dec 23, 2025 10:40 am Interestingly...

Whilst binnin 20+ years of shite, found some paperwork from the RV8 stuff and the DW270 Typhoon cam. Although it's probably readily available anyway

Intake Lobe centre 110deg ATDC
Lobe centre separation 110 camshaft degrees
Duration at 0.050" lift is 221 intake, 215 exhaust
Cam lobe lift is 0.300" to 0.303" on both intake and exhaust

As I've probably said earlier, one of the frustrating things I've found while looking at camshafts is the many and varied way manufacturers (and sellers) quote the figures and also how ambiguous the descriptions can be.
This is particularly true when lift is quoted either directly or as a qualifier for another value such as "Duration at 0.050" lift.
If that figure is indicating valve lift then my duration is 246IN/244EX however if it is lobe lift then I'm getting 214IN/215EX. Obviously that is closer to the Typhoon on the exhaust (in fact spot on) but inlet is seven degrees out.
I'm getting lobe separation of 220° which will be crankshaft hence 110° cam which is in line, although I've seen many quotes for the Typhoon as being 111°.
Cam loge lift of 0.3/0.303" is dead on.
All in all I'd say this is a Viper Typhoon or very similar.