13 replies to this topic

[minimotor_JD]

I'll be doing a supercharger conversion soon, so i'm doing a bit of indetail research about various camshafts and what would be best suited.

So far i have read up on the:

SW5-07 Camshaft
MSPD Full Race Scatter Cam 312
KENT STR930 billet

For performance i've heavily considered the Kent Cam.

Anyone stuck a different kind of cams or a custom drilled cam on?

[Turbo Nick]

i'd keep at the research dude, unless anyone else has tried anything other than an sw5/MG type jobby?

personally i'd have thought the race cams would have way too much overlap for a forced induction motor, i know on the turbo lumps a 276 is about the highest you'd want to go. although i think the supercharged twinny thing used to run 285's iirc?

[1987_ParkLane]

I was told you don't want anything too lumpy, so I'm going to use, 1.5 rockers and a 256 cam, and I was told that was a good choice, so really anything up to a 266'ish would be fine .

[Tomf]

Personally i would go for a turbo specific sort of cam, like a msd ph2 turbo cam

[1987_ParkLane]

Personally i would go for a turbo specific sort of cam, like a msd ph2 turbo cam

Or isn't the Metro turbo cam good aswell, isn't it a 256 or 266 as standard ?

[Mini Mad Max]

Yep you don't really want to go very high with the cam profile with a supercharger. 266 will do just fine. I suppose even 276, but 286 is very lumpy and with a supercharger it's a bit excessive. Plus to make the most of the charger you want a cam that will pull from low revs so it will have great acceleration

[Turbo Phil]

I'll be doing a supercharger conversion soon, so i'm doing a bit of indetail research about various camshafts and what would be best suited.

So far i have read up on the:

SW5-07 Camshaft
MSPD Full Race Scatter Cam 312
KENT STR930 billet

For performance i've heavily considered the Kent Cam.

Anyone stuck a different kind of cams or a custom drilled cam on?

I'd avoid anything near a full race profile in a forced induction engine, something milder without the huge overlap will be much better.

Personally i would go for a turbo specific sort of cam, like a msd ph2 turbo cam

Or isn't the Metro turbo cam good aswell, isn't it a 256 or 266 as standard ?

The Metro Turbo cam is just the standard A+ cam, the NA MG cam on the other handis a great fast road cam & works well with forced induction.

[John H]

vmax scart are also doing supercharger specific cams these days

[1987_ParkLane]

Personally i would go for a turbo specific sort of cam, like a msd ph2 turbo cam

Or isn't the Metro turbo cam good aswell, isn't it a 256 or 266 as standard ?

The Metro Turbo cam is just the standard A+ cam, the NA MG cam on the other handis a great fast road cam & works well with forced induction.

I knew it was something like that lol.

[THE STIG]

have run a 276 and a sw5 in my engines both worked very well

[John H]

I would also imagine that the Kent 274SP would make a good supercharger cam.

[mini93]

i dont think scatter pattern cams (SP on the profile name or SB) they are mainly suited for webber carb's i though?? due to inlet tract shape and the air flow tending to bias the 2 outside cylinders

[John H]

I believe this becomes less of an issue under forced induction.

[mini93]

the inner 2 cylinders have longer duration so they get same VE as the outside (i think) so will work the opposite with forced induction, instead the inner 2 cylinder will have more charge than the outside 2