Standard Valve Sizes

[ChimpofDarkness]

Hi, can someone in the know confirm the valve sizes on my 4.0HC.

Thanks, Dave.

[Simon says]

40mm In 34mm Ex

[ChimpofDarkness]

Simon says said:

40mm In 34mm Ex

Thanks Simon, couldn't find that anywhere for some reason

So what would the likes of JE or Rob take these up to on my 4.0 litre if I still wanted to keep it nice & drivable?

[Simon says]

You have got to go BV even on the smaller baby RV8's it's the only way IMO to get proper results not sure we could use the finest BV'ers from the likes of V8D etc often referred to stage4/5 whatever but I am sure a set similar to the early 4.3 BV spec would make our motors fly with the right cam and intake mods I am pretty sure I could get the 500 heads & intake man to do a turn also with a nice spiky cam not really bothered about low speed grunt myself

[ChimpofDarkness]

Simon says said:

You have got to go BV even on the smaller baby RV8's it's the only way IMO to get proper results not sure we could use the finest BV'ers from the likes of V8D etc often referred to stage4/5 whatever but I am sure a set similar to the early 4.3 BV spec would make our motors fly with the right cam and intake mods I am pretty sure I could get the 500 heads & intake man to do a turn also with a nice spiky cam not really bothered about low speed grunt myself

Nice one Simon, that makes sense to me too.

So I've finally bitten the bullet and gone Canems, as I see it this (or any other similar system) is the key to start developing the car further.

A set of better heads will have to be my next step as soon as my piggy bank gets back on his feet.

I must admit I've been ogling the photos of your MS installation which looks very tidy indeed, can I ask what were your experiences directly after junking the dizzy & 14CUX?

I know the theory and all the chat, but I would value your real world knowledge on what I should expect from my new engine management system over the Lucas setup.

Cheers, Dave.