Performance Camshaft

Hello all, looking for advice on putting a cam into my Mk1.

The engine itself has been bored out to a 1.9 and i recently fitted the Audi 2.2 throttle body and ported inlet manifold to suit, all of this is mated up to a Supersprint four branch manifold.

Im thinking about fitting a peformance camshaft into the old girl and was wondering:

Whats the best manufacturer to go for
Whats the difference between 276degrees, 298degrees etc
Is it best to get a camshaft kit or just go for the cam itself

Finally, is it even going to be worth my while doing all this without having a flowed head?

Thanks in advance  

the rule of theumb is longer duration = higher peak power..

BUT

this is only the case if the rest of the engine is up to spec, ie matched head, and exhaust set-up etc etc

also note the idle will become lumpier, and you may need to raise the idle to smooth it out and to actually get the car to idle. you will also loose power low down, so bellow 4k or so the car may have little acceleration.

for your spec I would suggest a newmans phase 3, which is a 280deg duration cam, about the longest duration you would want to go for road use on a 8v. I had one on my 8v and it was fine, the idle was a little lumper but still very happy idling at 950rpm and wasnt harsh in the car, it also pulled well from idle, and when it got to 3500 it really started to fly as the power band is 3500 to 7200rpm.

you will also need to reshim the tappets, there is a guide in the how to bit, its dead easy. but if you dont do this you wont get the most from the cam and the engine might not run, esp if the cams now holding the valves open,

a flowed head will also make the most of this mod and the rest of your engine set up.

On my old 1800 carb I had a 288 which wouldn't idle in traffic, then a 276 which lacked the top-end anger of the 288, so I settled for a 280. It was a great combination.

I have a kent GS2h in my cab. idle is fine with the current delorto carb set up. I don't know the duration, all I know is that it is classed as fast road and has a power range from 2000 - 6000.
I have no idea on how it is on the road as the car hasn't seen ahy use since the cam went in. mainly due to an on going chassis/brake up grade.

I don't have the head flowed as yet, so I'll not get the best out of the cam, however I had a similar upgrade in my old pug GTI, that as a strong engine.

If you do get a cam make sure you fit an adjustable vernier timing wheel to the cam too ( mine was about £40.00 new on ebay ). This should help get the best out of the cam!

Remember- power figures may sell parts, but torque wins races.
What i'm getting at is the fact in choosing a wilder cam (durations of over 288 i'd think) you may get slower acceleration in much of your driving- as most of the time it's driven in the lower rev range on the road. So bear that in mind for a road car and think how often do you blat it to the red line? Think about preserving low end and mid range torque by trading off the peak power with a milder cam choice.

I'd personally like to hear from anyone who's used 276 or 280 cams in a 1.6

Sorry for hijacking thread, but anyone know if there is any difference between the DX (GTI) Camshaft and the EX (1.8 carb) ones?

I'm looking for a little more power and slight mods the my Clipper 1.8 EX

Thanks

Hi everyone I have a 1.4i mp9 in my mk1 and I'm thinking about do small editions to the engine such as a bigger cam a branch and exhaust and tune what I want to know is if anyone can give me more info on the specs of this engine as well as if its worth it