4.3 with FFF?

[Don1]

I'd like to know if this is possible..... anyone?

[tail slide]

Some say, that would be a lower-powered 4.3...

[spitfire4v8]

would that be some people not making fff engines by any chance?

[tail slide]

No, engineers in general!

There are technical restrictions on the valve lift & acceleration possible without finger followers, as in bike engines.

The 4.3 needs to breathe deeply to give torque/power gains.

[Don1]

So it is actually a basic choice - 4.3 OR FFF.

Would the 4.3 be able to adopt some of the extras the FFF has in it, such as the oil filters at the base?

[PascalBuyens]

tail slide said:

Some say, that would be a lower-powered 4.3...

Then my first question to that people would be: how does it come that a 4.0l FFF makes more power than a finger followed type of the same capacity?

[tail slide]

PascalBuyens said:

tail slide said:

Some say, that would be a lower-powered 4.3...

Then my first question to that people would be: how does it come that a 4.0l FFF makes more power than a finger followed type of the same capacity?

Does it?

Didn't feel faster to some I know who have driven it, quiet, but not quicker. Hopefully we'll have some definitive acceleration figs soon.

[PascalBuyens]

tail slide said:

PascalBuyens said:

tail slide said:

Some say, that would be a lower-powered 4.3...

Then my first question to that people would be: how does it come that a 4.0l FFF makes more power than a finger followed type of the same capacity?

Does it?

Didn't feel faster to some I know who have driven it, quiet, but not quicker. Hopefully we'll have some definitive acceleration figs soon.

The only engine that I know of that was out there to test, was the prototype engine of Racing Green, which has a lowered CR (due to it being setup from the start for the supercharger dev), and still had 392bhp. With a higher compression ratio, I think you'd be around the same hp as the 4.3...

[s5tvr]

PascalBuyens said:

tail slide said:

PascalBuyens said:

tail slide said:

Some say, that would be a lower-powered 4.3...

Then my first question to that people would be: how does it come that a 4.0l FFF makes more power than a finger followed type of the same capacity?

Does it?

Didn't feel faster to some I know who have driven it, quiet, but not quicker. Hopefully we'll have some definitive acceleration figs soon.

The only engine that I know of that was out there to test, was the prototype engine of Racing Green, which has a lowered CR (due to it being setup from the start for the supercharger dev), and still had 392bhp. With a higher compression ratio, I think you'd be around the same hp as the 4.3...

Really ? I thought Power's 4.3 was knocking out around the 450bhp mark. If you're right that's a fair hike from 392bhp and a lot of power for a 4.0l engine to make. Also, correct me if i'm wrong, but RG's selling point was/is reliability and not significant extra power, whereas TVR Power seem to be going down the extra power route and address the reliability issue by offering a 5 year warranty. Again, correct me if i'm wrong but RG are not offering 5 years warranty yet they are selling on the reliability angle !.

[Mark A S]

What the 4.3 really scores on, is its Torque. Depending on the Car type, exhaust, cams and injectors, they make between 410 and 445 Bhp. Torque is between 380 and 400 Ibs of the stuff, again, depending on the above.
I think a standard 4L Sp 6 is around 310 Torques?? so as you can see this is the biggest jump.
This equates into real world driving, a Much punchier engine, acceleration much improved.
A FFF 4.3 would be Kin expensive, and IMO not necessary.
Trust me for road use, 400 torques in a 1100 kg car, is plenty, much fun
The 5 year unlimited mileage warranty make it a no brainer IMO.

[Whitey]

Has anyone put a 4.3 on the Surrey Rolling Road yet?

[Tvr Power]

s5tvr said:

PascalBuyens said:

tail slide said:

PascalBuyens said:

tail slide said:

Some say, that would be a lower-powered 4.3...

Then my first question to that people would be: how does it come that a 4.0l FFF makes more power than a finger followed type of the same capacity?

Does it?

Didn't feel faster to some I know who have driven it, quiet, but not quicker. Hopefully we'll have some definitive acceleration figs soon.

The only engine that I know of that was out there to test, was the prototype engine of Racing Green, which has a lowered CR (due to it being setup from the start for the supercharger dev), and still had 392bhp. With a higher compression ratio, I think you'd be around the same hp as the 4.3...

Really ? I thought Power's 4.3 was knocking out around the 450bhp mark. If you're right that's a fair hike from 392bhp and a lot of power for a 4.0l engine to make. Also, correct me if i'm wrong, but RG's selling point was/is reliability and not significant extra power, whereas TVR Power seem to be going down the extra power route and address the reliability issue by offering a 5 year warranty. Again, correct me if i'm wrong but RG are not offering 5 years warranty yet they are selling on the reliability angle


Yes your correct about RG, but why offer a rebuild that makes less power and offers shorter warranties

There are 28 4.3 ltrs engines out there now has for reliability i have know concerns whats so ever,we also allow specialist tuners too service our product which wont invalidate TVR POWERS warranty

Dom

[Tvr Power]

PascalBuyens said:

tail slide said:

Some say, that would be a lower-powered 4.3...

Then my first question to that people would be: how does it come that a 4.0l FFF makes more power than a finger followed type of the same capacity?

Has you may of heard im moving closer to london with our tuning division i have purchased our second brand new dynojet rolling road which will be ready for our open day on the 19th September 2009, please feel free to bring along your FFF std engine and show the world real rear wheel HP against TVR POWERS std rebuilds


Dom

[WorAl]

hehehe I like Dom, confident as fook

Dom, after the 4.3 conversion with 5 year warranty, if the engine lets loose again and you rebuild it, would you offer the same warrenty? or would it be 3 or one year warrenty as per standard rebuilds?

[Tvr Power]

WorAl said:

hehehe I like Dom, confident as fook

Dom, after the 4.3 conversion with 5 year warranty, if the engine lets loose again and you rebuild it, would you offer the same warrenty? or would it be 3 or one year warrenty as per standard rebuilds?

It Wont let go my 4.3 spec has been developed and tested to the extreme,all ive done to my engine is 1k service then 6k service and shes covered 32,000 miles since the build,

If for what ever reason my 4.3 fails i will offer an additional 3yrs on my rebuild

[tail slide]

Tvr Power said:

It Wont let go my 4.3 spec has been developed and tested to the extreme,all ive done to my engine is 1k service then 6k service and shes covered 32,000 miles since the build,

If for what ever reason my 4.3 fails i will offer an additional 3yrs on my rebuild

Their engines are also being track-proven by several of us, mine's at 4k now. Sweet as a nut and running cool on track, & data logger says it's rather quicker than previous 4-litre RR. Which is nice.

Thanks Dom, & STR8SIX who built it

Edited by tail slide on Monday 7th September 18:20

[thainy77]

tail slide said:

Tvr Power said:

It Wont let go my 4.3 spec has been developed and tested to the extreme,all ive done to my engine is 1k service then 6k service and shes covered 32,000 miles since the build,

If for what ever reason my 4.3 fails i will offer an additional 3yrs on my rebuild

Their engines are also being track-proven by several of us, mine's at 4k now. Sweet as a nut and running cool on track, & data logger says it's rather quicker than a 4-litre RR. Which is nice.

Thanks Dom, & STR8SIX who built it

Edited by tail slide on Monday 7th September 17:11

I did a 2000mile round trip to St Tropez a couple of weeks ago and it didn't miss a beat. I needed to top the coolant up but apart from that nothing else, oil was fine, temps and pressures were fine, i was chuffed.

[s6boy]

tail slide said:

Tvr Power said:

It Wont let go my 4.3 spec has been developed and tested to the extreme,all ive done to my engine is 1k service then 6k service and shes covered 32,000 miles since the build,

If for what ever reason my 4.3 fails i will offer an additional 3yrs on my rebuild

Their engines are also being track-proven by several of us, mine's at 4k now. Sweet as a nut and running cool on track, & data logger says it's rather quicker than previous 4-litre RR. Which is nice.

Thanks Dom, & STR8SIX who built it

Edited by tail slide on Monday 7th September 18:20

As tvr power are contributing to the debate can they let those of us in the dark know what their relationship is with str8six as I thought they were competitors, but this is the 2nd time I've seen them mentioned on the same project.

[Don1]

Dom, one of the upgrades in the FFF engine is a filter over the oil collection areas at the bottom of the block (if I can remember this correctly).

Does the 4.3 have this, and if not, can it be retro-fitted?

I only ask as I love the idea of a 4.3 when my Sag needs a rebuild, but there are a few upgrades in the FFF that I thought were sensible (or at least made sense to a layman like me).

Cheers!

[Tvr Power]

Don1 said:

Dom, one of the upgrades in the FFF engine is a filter over the oil collection areas at the bottom of the block (if I can remember this correctly).

Does the 4.3 have this, and if not, can it be retro-fitted?

I only ask as I love the idea of a 4.3 when my Sag needs a rebuild, but there are a few upgrades in the FFF that I thought were sensible (or at least made sense to a layman like me).

Cheers!

Im not sure to be honest,my 4.3s are not really compatible with the FFF and im sure racing green will agree

Dom