N/A big cam

[jameshsv]

Anyone running a big cam if so hows the driveability and power.Any thoughts on a 231/242 .651/.644 112+2 custom grind to suit 1.8 rockers.

[KMud]

If you're going for that much lift on the cam do you reckon you'll have the piston to valve clearance for 1.8 rockers?

[jameshsv]

KMud said:

If you're going for that much lift on the cam do you reckon you'll have the piston to valve clearance for 1.8 rockers?

It should all good as its specked to go with 1.8 rockers

[SturdyHSV]

That's a lot of lift!

[monkfish1]

Some serious overlap right there. And 695 thou of lift on the intake with the rockers. You sure that leaves piston to valve clearance?

[mikeyb1987]

I can only echo the above- a lot of lift and a lot of overlap. Is the lift quoted for that cam for 1.7 or 1.8 ratio rockers?

ETA- what springs are you going to be using?

Edited by mikeyb1987 on Tuesday 18th November 19:09

[SturdyHSV]

mikeyb1987 said:

ETA- what springs are you going to be using?

Bloody good ones!

[gsd2000]

Your tune needs to be spot on

[jameshsv]

mikeyb1987 said:

I can only echo the above- a lot of lift and a lot of overlap. Is the lift quoted for that cam for 1.7 or 1.8 ratio rockers?

ETA- what springs are you going to be using?

Edited by mikeyb1987 on Tuesday 18th November 19:09

Duel springs with 660 lift

[jameshsv]

monkfish1 said:

Some serious overlap right there. And 695 thou of lift on the intake with the rockers. You sure that leaves piston to valve clearance?

So I have been told this is the grind spec to suit 1.8 rockers.

[jameshsv]

Always doubt in ones mind this is why I posted to get feed back on this spec.

[monkfish1]

jameshsv said:

So I have been told this is the grind spec to suit 1.8 rockers.

So the lift is quoted with 1.8,s?

[jameshsv]

monkfish1 said:

So the lift is quoted with 1.8,s?

Yes but will double check.

[jameshsv]

gsd2000 said:

Your tune needs to be spot on

[KMud]

Where are you planning on setting the limiter?

[mikeyb1987]

Are you going stroker, or is this for your 5.7?
It seems a big cam for that capacity.

As Ben asks, what are you hoping it revs to? Should make good power past 7k?!

[jameshsv]

mikeyb1987 said:

Are you going stroker, or is this for your 5.7?
It seems a big cam for that capacity.

As Ben asks, what are you hoping it revs to? Should make good power past 7k?!

just the 5.7 and power should peak at about 6.8k mabe a bit higher.

[mikeyb1987]

jameshsv said:

ust the 5.7 and power should peak at about 6.8k mabe a bit higher.

What heads/intake are you going to be using?
My cam is smaller than yours, and is making peak power at the rev limit of 6.6k- hopefully it can make more power further up the Rev range- the power curve certainly indicates that.
I know I'm running CNC LS3 heads (but a standard LS3 intake), but surely yours should be good for peak power at 7k?

Either way, sounds like an interesting build
Look forward to seeing/hearing it

[jameshsv]

mikeyb1987 said:

What heads/intake are you going to be using?
My cam is smaller than yours, and is making peak power at the rev limit of 6.6k- hopefully it can make more power further up the Rev range- the power curve certainly indicates that.
I know I'm running CNC LS3 heads (but a standard LS3 intake), but surely yours should be good for peak power at 7k?

Either way, sounds like an interesting build
Look forward to seeing/hearing it

I have the fast intake with matching TB both 102mm and 243 cnc ported heads still going over cam specs mikeyb1987