Camshafts

[Bluerex]

Any opinions on this guy for my 1600 8v with the webber twins(40s),

http://www.bildon.com/catalog/DetailsList.cfm?ID=049.109.101G&Nav=6

maybe add

http://www.bildon.com/catalog/DetailsList.cfm?ID=ZVW.109.500-75&Nav=6

for some real fun

C

[Golf Loon]

Nice sensible G grind cam and adjustible gear is always good.
Is that is US dollars or Aussie?
You can get both those parts in Australia.
Its cool to get em from the US, just dont pay too much freight.

[syncro]

G grind cam is good but I'm not a fan of the adjustable gear. It will actually give you less horsepower. It just moves the peak around.

[Golf Loon]

G grind cam is good but I'm not a fan of the adjustable gear. It will actually give you less horsepower. It just moves the peak around.

I was gonna say that but didnt wanna dampen the enthusiasm

[syncro]

But they look nice.........

[Golf Loon]

especially without the cover

[syncro]

I didn't mean to put it on the car!
Didn't you see glass cabinet in my dining room?

[evorobin]

Well I reckon cam gears are nice to mess around with. Will ruin your fuel economy retarding it though

[Bluerex]

Nice idea but...

FUEL ECONNOMY.......

TWIN WEBBERS.......

RALLY CAR........



thanks for the thought anyway

C

BTW the last WRX I naved for used ELF at $6 a litre and got 3 km to the litre on a competitive stage.

[Golfwise]

Rex are u using a 1.6 in your rally car.I gather its a class thing.
I have a brand new set of 1.6 pistons / ring set and a s/h G cam and adj gear if you are interested.The adjustable cam gear is a must although others are not going to agree with me.

[Bluerex]

Yep, there a a number of advantages to sticking in P2 class (and a pre 1986 car helps too)

I plan the run the current engine as is for the first few months ( or until i blow it up ) so I can learn how she handles. Then I might look at building something with a bit more oomph.

The engine was re-built by Michael (Canberra VW) when he owned the car a few years ago, it has flat-top high compression pistons and other good stuff already, so hopefully it will be a good enough base to start with. I thought the G cam might be a good match for the Webberas without requiring major surgery to fit.

C

[gotrice]

But they look nice.........

Did you say nice or rice?

[ausgolfer]

Syncro could you tell me how you'd lose power with an adjustable cam gear installed? I assume if you've got one on your engine with the base/standard timing you would have exactly the same horsepower.
Again if you used it to move the peak higher could you not gain more top end power?

[syncro]

Syncro could you tell me how you'd lose power with an adjustable cam gear installed? I assume if you've got one on your engine with the base/standard timing you would have exactly the same horsepower.

Correct.

Do we both agree that if we move the peak lower that we lose power?

Most performance cams are made to have the peak higher. If we could get more performance from changing the cam timing then the cam would be made different from the start. I have seen a performance increase using a standard cam but nowhere as much as changing the cam itself.

Spend the money on a good cam and it won't need to be adjusted.

[VanKronenburg]

Spend the money on a good cam and it won't need to be adjusted.

This is not true at all.

Peak result comes from engine setup not the equipment you use. If anyone could bolt a camshaft in and obtain good results, there would be no need for skilled engine builders.

Above all, the VW 8v engine (particularly of lower capacity) is very difficult to setup and requires a lot of fine tuning. Often, even the mildest cam change will remove a great amount of bottom end torque on this motor. The vernier pulley is vital with any cam swap - as is higher compression, with all camshafts above 280degrees/11mm.