whtk to upgrade: perfect 4.0l Griffith

[Jobster]

Just assume I have been given 1000 quid and a message that I can only spend it on an engine upgrade. 4.0 L, 25k miles, excellent condition, which has already: new HT leads, distributor, coil, plugs, radiator, hoses, belt, startermotor, battery etc.

Was thinking of ACT trumpets and a tornado chip (14cux). Would you consider me crazy? Any other ideas?

[andy43]

Smooth bore intake hoses and air filter, trumpets (not sure if they make much difference) and a Joolz live remap session. And lots of petrol

[Penelope Stopit]

Dispose of alternator 100 Amp in-line fuse and rewire alternator in a fashion so as to know main alternator supply can't short out to anything

Cost approx 10 pounds

[pac1uk]

For a 4L I would go for:-

Clive Y piece
Smooth Bore elbow
Performance air filter

Then off to Joolz at Kits and Classic for rolling road session

[Jobster]

Penelope Stopit said:

Dispose of alternator 100 Amp in-line fuse and rewire alternator in a fashion so as to know main alternator supply can't short out to anything

Cost approx 10 pounds

Already done, but thanks

[Jobster]

Forgo to mention, I'm based in the Netherlands

Ok, on the list:

Smooth bore elbow
Performance Air Filtier (=> which one, I'm stil on the stock flat filter above the radiator)
Trumpets (ACT?)

Edited by Jobster on Wednesday 15th January 22:24

Edited by Jobster on Wednesday 15th January 22:25

[trev4]

If you could get them to give you a bit more, well double then have a emerald ECU fitted. By far the best upgrade I have done and I have done a few.

[dhutch]

Jobster said:

Already done, but thanks

Is this a known failure point is it?

[s3dave]

pac1uk said:

For a 4L I would go for:-

Clive Y piece
Smooth Bore elbow
Performance air filter

Then off to Joolz at Kits and Classic for rolling road session

I bought my sag off Clive F; the quality of his work is exceptional. I don’t profess to be a griff expert but the manifold is a work of art; it also sounds a good idea, after fitting, to go for mapping by Joolz or someone nearer to you.

See https://matthewpoxon.wordpress.com/2017/05/04/180-...

[spitfire4v8]

Sadly 1000 pounds doesn't get you anything useful as a power adder, there's just too much restriction in the engine as a whole (small intake manifold, small unported heads, small capacity) .. you either have to spend 300-400 pounds or 3000 pounds plus ..

300 pounds gets you ACT's full intake fitted (elbow to plenum and pipework to the filter, and a new filter) .. this is probably the best value you will spend initially. Spend a hundred pounds on the dyno fine tuning the distributor position and leave it at that.

Anything else is really not going to do much extra unless you go big valve ported heads, more capacity, forced induction etc.

So my advice would be .. buy the ACT intake pipes, tweak the dizzy on the rollers, and buy lots of petrol and have fun.

[Penelope Stopit]

Jobster said:

Penelope Stopit said:

Dispose of alternator 100 Amp in-line fuse and rewire alternator in a fashion so as to know main alternator supply can't short out to anything

Cost approx 10 pounds

Already done, but thanks

You're ahead of many, nicely done, please say hello to the Netherlands for me

[Jobster]

Penelope Stopit said:

Jobster said:

Penelope Stopit said:

Dispose of alternator 100 Amp in-line fuse and rewire alternator in a fashion so as to know main alternator supply can't short out to anything

Cost approx 10 pounds

Already done, but thanks

You're ahead of many, nicely done, please say hello to the Netherlands for me

Will do.

[Jobster]

Ok, ordered trumpets, elbow, afm to filter pipe and new filter trhu ACT's rep here in the netherlands

[Penelope Stopit]

Jobster said:

Penelope Stopit said:

Jobster said:

Penelope Stopit said:

Dispose of alternator 100 Amp in-line fuse and rewire alternator in a fashion so as to know main alternator supply can't short out to anything

Cost approx 10 pounds

Already done, but thanks

You're ahead of many, nicely done, please say hello to the Netherlands for me

Will do.

Much appreciated

[Classic Chim]

Jobster said:

Ok, ordered trumpets, elbow, afm to filter pipe and new filter trhu ACT's rep here in the netherlands

The full induction pipe work from filter to AFM from ACT is a good mod. Cooler air and crucially a nice aluminium connection piece that replaces tthe poorer flow rate of the original bendy hose as it goes through the wing to filter. I think this increases air speed as it’s simply a smoother and more direct bend before carrying on to Afm.
My induction roars more put it that way