FFF. Finger free, any issues?

[NicBowman]

Hi

Thinking of buying a series 2 Tuscan S with the Racing Green FFF head, etc.

Any issues to worry about?

Thx.

Nic

[m4tti]

No, it’s a cracking piece of engineering.

The FFF2 had improvements over the first FFF.

Is it running the simplex chain set up?

[NicBowman]

Will find out tomorrow. Seeing it afternoon.

Nic

[ridds]

Non-doweled caps and the bucket supported on one side. Not for me.

I'd work with Al's original design and put back in the features it was supposed to have (like a proper oil feed from the FF that actually hit the lobe).

Cam direct to bucket loads are massive compared to the FF design.

[m4tti]

ridds said:

.

Cam direct to bucket loads are massive compared to the FF design.

it’s using the same lobe to bucket design as just about every manufacturer out there these days.

Agree that the lack of dowels however, is fairly non standard.

Edited by m4tti on Wednesday 28th June 08:41

Edited by m4tti on Wednesday 28th June 08:47

[NicBowman]

Hi, dowels in the cap? Can someone explain? Cam followers are normally designed to rotate, so wear looks circular.

Seems the car has FFF2 plus simplex chain mod. Plus syntex(?) control system. This gives various modes, including traction control at various levels, holligan mode, mot mode, valet mode.

Sounds good?


Nic

[Speed 3]

NicBowman said:

Seems the car has FFF2 plus simplex chain mod. Plus syntex(?) control system. This gives various modes, including traction control at various levels, holligan mode, mot mode, valet mode.

Sounds like Syvecs, quite a few have put them on S6 powered cars with decent results reported.

[Phil_D]

Is this the Blue one that’s for sale at HM ?

[TwinKam]

NicBowman said:

Hi, dowels in the cap? Can someone explain? Cam followers are normally designed to rotate, so wear looks circular.

Seems the car has FFF2 plus simplex chain mod. Plus syntex(?) control system. This gives various modes, including traction control at various levels, holligan mode, mot mode, valet mode.

Sounds good?


Nic

'Dowels in the cap'... to accurately locate the cam bearing caps to the cam carrier, rather than just relying on the bolts (or the journal) to centre them, typically they're hollow and concentric around the studs.

[m4tti]

NicBowman said:

Hi, dowels in the cap? Can someone explain? Cam followers are normally designed to rotate, so wear looks circular.

Seems the car has FFF2 plus simplex chain mod. Plus syntex(?) control system. This gives various modes, including traction control at various levels, holligan mode, mot mode, valet mode.

Sounds good?


Nic

Give woody a call at TVR101 and see if he knows the car. He built most of the FFF engines.

[Phil_D]

Is this the Blue one that’s for sale at HM ?

[NicBowman]

Yes. Blue.

[NicBowman]

Looks like I have sold my Griff, kind of a surprise sale, I didn’t even know I wanted to sell it! So, looking for decent Tuscan. Low miles, engine done, well loved. No dark colours.

Nic

[Phil_D]

Email sent

[ridds]

m4tti said:

ridds said:

.

Cam direct to bucket loads are massive compared to the FF design.

it’s using the same lobe to bucket design as just about every manufacturer out there these days.

Agree that the lack of dowels however, is fairly non standard.

Edited by m4tti on Wednesday 28th June 08:41

Edited by m4tti on Wednesday 28th June 08:47

The issue the lack of support opposite to the Cam Towers. This will promote bucket tilting and accelerated wear. I've seen Buckets bust out of head castings quite happily before.

What Durability testing was carried out on the design? Are the buckets off the shelf, can replacements easily be sourced? Same with the Shims?

Edited by ridds on Thursday 29th June 01:23

[NicBowman]

Good questions? Is the design still supported by Racing Green?

Actually the blue car in question is not bad, but I think I can do better. It is overall pretty good but needs a lot of titivation to get back to perfect.

Nic

[Stunned Monkey]

Nice to see my video getting some views It's finally on the road as of a week ago too.

The head is made by Ultimate Performance, so the idea of needing dowels to locate the cam bearing caps has probaby been put to bed to their satisfaction on other heads they've designed.

The simplex chain mod is a poorly thought-through solution to a simple problem. It's totally backwards to reduce the most heavily loaded chain on the whole engine to simplex, all so the sprockets can be removed in situ and to "fix" the half-time bearing. They even admit the cam sprockets experience accelerated wear. Here's what I did:

1) Turn down the original sprockets to allow them to be removed in situ.

https://www.facebook.com/mys6cerbera/posts/pfbid0v...

2) Bore out the half time sprocket and fit roller bearings and a spacer

https://www.facebook.com/mys6cerbera/posts/pfbid0o...

On re-mapping: I've fitted refurbed Bosch 791 brown tops from a 993 turbo (handily available in sets of 6) and an adjustable regulator which I'm running at 2.9 Bar to approximate the original injectors. My adaptives are working hard but seem to be happy within their window, at least for the running-in period. There is a nasty flat spot between 1500-2000rpm which I was warned to expect. I'll be sending the car to Joolz for a re-map on the original MBE once it's run in. The Syvecs system was a complete non-starter for me as it relies on a single lambda sensor to monitor both banks, which means half your engine could go very wrong and you'd never know.