Is syvecs suitable for a 4.5 Speed 6?

[SAGRIFF]

So what would a full monty FFF/Power 4.5 with Syvvecs & VVT make bhp and lb ft wise, 450bhp 400lbft?

Edited by SAGRIFF on Wednesday 21st December 20:00

[DonkeyApple]

SAGRIFF said:

So what would a full monty FFF/Power 4.5 make bhp and lb ft wise, 450bhp 400lbft?

I think the aim of the VCT is to get the FFF option to around 450 bhp and higher than the current 350 lbft, so it may be that adding the 4.5 bottom end could make your numbers conservative!!!

[SAGRIFF]

sounds good especially if it comes with a decent warranty,

[Robertjp]

Congratu;ations on those numbers- they look very impressive, muct make a HUGE difference to the drive

[natben]

Fantastic figures, Monster performance. Enjoy

[D14 AYS]

Ryan Griffiths said:

Also Charlie had a Graph of another 4.5 on MBE which he digged out to compare against Syvecs.

Just for clarity, as you have used my graph to overlay!

My Sag had an issue at the time that has long been rectified, I intend to go back to Charlies for another power run soon, I will post up results

[jcpgasoline]

D14 AYS said:

Ryan Griffiths said:

Also Charlie had a Graph of another 4.5 on MBE which he digged out to compare against Syvecs.

Just for clarity, as you have used my graph to overlay!

My Sag had an issue at the time that has long been rectified, I intend to go back to Charlies for another power run soon, I will post up results

Can you tell us what the issue was at the time?

[RedSpike66]

D14 AYS said:

My Sag had an issue at the time that has long been rectified, I intend to go back to Charlies for another power run soon, I will post up results

Meet me there on the 29th Dec ???? Surrey RR day £35 including biscuits ??!!

[RedSpike66]

Ryan Griffiths said:

Im desperate to do a Power 4.5 with a RG VVT FFF Head

What we need is a guinea pig....
Power advertise the 4.5 'KIT' in the store section of the website.....

http://www.tvrpower.co.uk/store/slug/45ltr-engine-...

Someone please buy it, drive in to RG and ask them to bore the block out, fit Top Hat Liners, and build it and warranty it with FFF2 head, VVT, Syvvecs

[drool] [/drool]

[PascalBuyens]

One of the last times I spoke to RG:

FFF2 VCT head: check
Syvecs + sequential injection: check
4.x: considering 4.2 (increased bore), 4.3 (increased stroke), 4.5 (both bore and stroke) and looking at possibly a 4.7.

Got to get myself over somewhere beginning of January to see where we are going, after our last chat...

But totally honest: I've still got that LS9 swap wandering around in the back of my head...

[Getsis]

I'm glad it's all worked out, big thanks has to go to Ryan for putting in the overtime. So the answer to the title of the thread is a definite yes. syvecs is doing what it should, protecting the engine if sh!t fuel is put in. And Dom has built a cracking engine.

If RG and Power will upstanding warranties if a FFF is put on a 4.5 I might be interested in going this route but can't see what would happen if a valve dropped and damaged the bottom end? Who would pay for the bottom end rebuild?

Probably best to stay clear for now.

Or should I start a new thread "Does an FFF work on a 4.5 with Syvecs"

[DonkeyApple]

PascalBuyens said:

One of the last times I spoke to RG:

FFF2 VCT head: check
Syvecs + sequential injection: check
4.x: considering 4.2 (increased bore), 4.3 (increased stroke), 4.5 (both bore and stroke) and looking at possibly a 4.7.

Got to get myself over somewhere beginning of January to see where we are going, after our last chat...

The increase cc is not exactly rocket science and would be a simple enough task for their chap who makes the heads.

There is an issue though: Why bother.

Even Power are aiming to offer LS transplants as the market for rebuilds and upgrades to S6 engines is dwindling as they all get sorted.

The Power bottom end very clearly works and if the 4.5 option is available in kit form then the logical thing would be to simply run with that, bar the politics.

[PipeNslippers]

DonkeyApple said:

The increase cc is not exactly rocket science and would be a simple enough task for their chap who makes the heads.

There is an issue though: Why bother.

Even Power are aiming to offer LS transplants as the market for rebuilds and upgrades to S6 engines is dwindling as they all get sorted.

The Power bottom end very clearly works and if the 4.5 option is available in kit form then the logical thing would be to simply run with that, bar the politics.

Isn't anybody shocked at what a difference using 99 octane over 95 octane makes..?

Clearly using 95 octane with a standard MBE has a high risk of detonation / pinking and could cause a lot of damage quickly..

I thought high octane was a nice to have..now I can see it's a necessity..without the syvecs anti knock protection

[jcpgasoline]

PipeNslippers said:

Isn't anybody shocked at what a difference using 99 octane over 95 octane makes..?

Clearly using 95 octane with a standard MBE has a high risk of detonation / pinking and could cause a lot of damage quickly..

I thought high octane was a nice to have..now I can see it's a necessity..without the syvecs anti knock protection

Can't say I'm shocked at all - that is exactly what ought to happen. Remember that detonation is most likely to occur when you're absolutely gunning it, or under load at very low revs. So, for "normal" motorway driving and driving around town you should get by on 95 if you don't push it too hard. Having said that I would favour the higher octane fuels for the added protection/peace of mind and if you can't get that then carry some octane booster with you in the car for use when needed. This product is the best I've found available over the counter: http://www.nitrous.com.au/products_octane.html

Fwiw, MON is actually more important than RON for the purposes of this discussion because the Research Octane Number (RON) simulates fuel performance under low severity engine operation whereas the Motor Octane Number (MON) simulates more severe operation that might be incurred at high speed or high load.

[ray von]

All these nice graphs are all lovely lovely, but as someone who had a car with a non standard ECU there are things that interest me beyond power figures.
What is the car like for starting and idling at various temperatures i.e cold starts, cold cold starts(after a night standing) warm starts, hot starts etc etc

[DonkeyApple]

ray von said:

All these nice graphs are all lovely lovely, but as someone who had a car with a non standard ECU there are things that interest me beyond power figures.
What is the car like for starting and idling at various temperatures i.e cold starts, cold cold starts(after a night standing) warm starts, hot starts etc etc

Just like my BMW.

[Getsis]

I can say that Syvecs makes the car much smother/easier start than the MBE did at cold but it didn't have a hot start mapped on the base map so was a pig to start when hot, this should be sorted now. hopefully I will drive the car before Xmas, but need someone to drive me to SSR to pick it up.

I would like to see a Tuscan S 4.5 with syvecs as I'm sure with the better exhaust some staggering numbers would surely be possible.

Edited by Getsis on Thursday 22 December 20:02

[ray von]

DonkeyApple said:

Just like my BMW.

and?? because my BMW was useless starting

Getsis, can you post up after it has the hot start map done, just out of interest.
I must sound like a real saddo but these sort of everyday running issues are of much more interest to me than 'git big power numbers'

[DonkeyApple]

ray von said:

DonkeyApple said:

Just like my BMW.

and?? because my BMW was useless starting

Getsis, can you post up after it has the hot start map done, just out of interest.
I must sound like a real saddo but these sort of everyday running issues are of much more interest to me than 'git big power numbers'

I've used the car since August and the engine hasn't even stuttered, it is as smooth as the newish 130 next to it. No dipping of revs off the throttle, starts on first turn, idles without any hesitation. It just runs like a modern car.

[ray von]

DonkeyApple said:

I've used the car since August and the engine hasn't even stuttered, it is as smooth as the newish 130 next to it. No dipping of revs off the throttle, starts on first turn, idles without any hesitation. It just runs like a modern car.

Nice to hear