What bhp

[Snapper]

String? How long?

It's about what you want from the engine

How you want the car to drive

There are several cams and manufacturers out there and everyone has a different opinion

Pintos like valve lift so cams such as Kent FR30 & FR34 work well on standard setups

Pinto will always benefit from bigger inlet valves and also benefits from port work however this becomes a journey of ever decreasing benefit.

Bigger valves need the port under the seats widening and blending in, other port mods need to be done carefully.

I don't see the need for large exhaust valves unless your competing.

FR32 or equivelant is a good fast road cam.

Pintos like compression

Longer duration cams need compression

Pinto piston ring lands don't like compression

Pinto rods are weak over 7000rpm ( caveat, I Rev them to 7500 on occations on the road) sustained high revs are a risk

So you see there is a consequence to any upgrade that will effect other componants.

The RL31 cam has a different feel on the road from an FR32 such that you need to be vary aware of the gear you are in and the revs or you can be embarrassed as you plant your foot and go nowhere, then at 4000rpm there is a Star Trek Enterprise going to warp moment.

People used to Rally engines will like a lot more cam than street hero's

I liked very much the simple FR32, Injection head combo but always felt I could do with a bit more cam, the RL31 certainly did that but at the other end of the spectrum

[S c o o b y]

String? How long?

It's about what you want from the engine

How you want the car to drive

There are several cams and manufacturers out there and everyone has a different opinion

Pintos like valve lift so cams such as Kent FR30 & FR34 work well on standard setups

Pinto will always benefit from bigger inlet valves and also benefits from port work however this becomes a journey of ever decreasing benefit.

Bigger valves need the port under the seats widening and blending in, other port mods need to be done carefully.

I don't see the need for large exhaust valves unless your competing.

FR32 or equivelant is a good fast road cam.

Pintos like compression

Longer duration cams need compression

Pinto piston ring lands don't like compression

Pinto rods are weak over 7000rpm ( caveat, I Rev them to 7500 on occations on the road) sustained high revs are a risk

So you see there is a consequence to any upgrade that will effect other componants.

The RL31 cam has a different feel on the road from an FR32 such that you need to be vary aware of the gear you are in and the revs or you can be embarrassed as you plant your foot and go nowhere, then at 4000rpm there is a Star Trek Enterprise going to warp moment.

People used to Rally engines will like a lot more cam than street hero's

I liked very much the simple FR32, Injection head combo but always felt I could do with a bit more cam, the RL31 certainly did that but at the other end of the spectrum

Hi snapper the reason I ask is I see the cams are £300 ish and also you can pick up a big valve head for a little more so was just wondering which was best . Thanks for the info maybe I'll stick with the high lift cam standard valves then for easiness plus skimmed injection head to help with compression

[Snapper]

You can also buy thinner gaskets for a true economy build

Rhienz do a very good one at 1.3mm (standard is 1.65mm) Adjusa from Burton performance 1mm but 94.5 so you gain some and loose some

 

Another point to factor in is the fitted spring height

Single springs and your mostly OK, may need some cheap shims under the springs but double springs will need spring seats cutting wider and shims