FFF head and Syvec's
Discussion
I am new to TVR and have been offered a rough running Tuscan speed 6, would seem the problem is related to knackered Valve gear, any way just browsing thru' face book and came across Racing Green a link there led me to top gear doing a test of their Modified Tuscan with their own head and Syvecs system fitted. The car sounds to be greatly improved with these mods but has anyone here had an experience of them. obviously i'll need an overhaul but if the original followers are that poor is the FFF the only option.
cheers
cheers
have a read here,
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I`m sure a few people with experience will be along to offer advice, however there are other possible options without changing the head, have a chat with Jason at St8six as well and weigh your options up.
http://www.str8six.co.uk/
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I`m sure a few people with experience will be along to offer advice, however there are other possible options without changing the head, have a chat with Jason at St8six as well and weigh your options up.
http://www.str8six.co.uk/
Hi David,
Do a search on here. A rough running S6 probably isn't the place to start your TVR experience unless a) it's free and/or b) you have a big bag of money (preferably not yours) and lots of patience.
A sorted S6 is a wonderful thing to sit behind, and there are more and more of them out there with the development work people are doing, but just do lots and lots of research and go in with your eyes open.
Best regards,
Sam
Do a search on here. A rough running S6 probably isn't the place to start your TVR experience unless a) it's free and/or b) you have a big bag of money (preferably not yours) and lots of patience.
A sorted S6 is a wonderful thing to sit behind, and there are more and more of them out there with the development work people are doing, but just do lots and lots of research and go in with your eyes open.
Best regards,
Sam
I can only add to that sentiment really. I went for the FFF (etc), and it's a monster. I love the way it drives.... There are a few of us on here with the FFF, so there is the start of a good knowledge base.
There are other choices out there also, so have a look around. Power and Str8-Six do some great work, and have a strong following for a good reason. There are also standard rebuilds, if you want to spend less money. And don't be afraid to ask more questions.
There are other choices out there also, so have a look around. Power and Str8-Six do some great work, and have a strong following for a good reason. There are also standard rebuilds, if you want to spend less money. And don't be afraid to ask more questions.
Gentlemen, My heartiest thanks to you all for your comments, Clive f your link very helpful despite some of the petulence displayed by some of the comments.
let me give you the reason for preference for FFF over the original set up and the increase capacity. Back in the 70's I had a BMW 3.0si which also had an overhead cam engine operating the valves via a rocker arm design and that also suffered the same high wear rate when compared to cam and bucket set ups, and I hate the thought of mechanically noisy engines when there is another option. I also feel that the addition of Syvecs will also give me a vehicle that will fully allow all options to be adopted with regard to driving modes. There have been many times in the past where my wants from the vehicle would have been surpassed by it had it not been for traction control and I have learnt that I have to accept, that despite the millions of miles I have driven (yes millions) I still occasionally need such aids, if I didn't then by now I would be a famous racing or rally driver. Having sold my C4s I look forward to replacing my BMW e46 ci sport with an FFF headed, Syvecs assisted Tuscan.
let me give you the reason for preference for FFF over the original set up and the increase capacity. Back in the 70's I had a BMW 3.0si which also had an overhead cam engine operating the valves via a rocker arm design and that also suffered the same high wear rate when compared to cam and bucket set ups, and I hate the thought of mechanically noisy engines when there is another option. I also feel that the addition of Syvecs will also give me a vehicle that will fully allow all options to be adopted with regard to driving modes. There have been many times in the past where my wants from the vehicle would have been surpassed by it had it not been for traction control and I have learnt that I have to accept, that despite the millions of miles I have driven (yes millions) I still occasionally need such aids, if I didn't then by now I would be a famous racing or rally driver. Having sold my C4s I look forward to replacing my BMW e46 ci sport with an FFF headed, Syvecs assisted Tuscan.
Don't worry about TC. If most people who own the late Tivs have a look they will find their car is all set up for it.
They just didn't have a suitable management system to run it.
It's a very prudent drivers aid on several fronts and it's only there if you want it to be.
The FFF head is a remarkable change from other options. Instead of creating a more punchy engine low down, more of a V8 character it takes the features of a straight six and puts them on steroids.
I would say that if you are not in love with those features then I wouldn't go this route.
Depending on budget though, if there is nothing wrong with the head at present I would consider getting the simplex timing chains and the Syvecs. That will transform the car as it is.
They just didn't have a suitable management system to run it.
It's a very prudent drivers aid on several fronts and it's only there if you want it to be.
The FFF head is a remarkable change from other options. Instead of creating a more punchy engine low down, more of a V8 character it takes the features of a straight six and puts them on steroids.
I would say that if you are not in love with those features then I wouldn't go this route.
Depending on budget though, if there is nothing wrong with the head at present I would consider getting the simplex timing chains and the Syvecs. That will transform the car as it is.
Again thanx 4 that. I still have not bought the Tuscan yet, but I contacted RG yesterday and spoke to a chap called Martin, he seemed well clued up on the project and informed me they are just having another batch of heads machined right now but they are being reserved quite quickly. He gave me a full breakdown of the subject and made me feel quite positive about moving forward and having a go with it. He also intimated quite strongly but would not say definitely that they would probably have a 5 year unlimited mileage warranty on it. That is quite reassuring.
DonkeyApple said:
Don't worry about TC. If most people who own the late Tivs have a look they will find their car is all set up for it.
They just didn't have a suitable management system to run it.
It's a very prudent drivers aid on several fronts and it's only there if you want it to be.
The FFF head is a remarkable change from other options. Instead of creating a more punchy engine low down, more of a V8 character it takes the features of a straight six and puts them on steroids.
I would say that if you are not in love with those features then I wouldn't go this route.
Depending on budget though, if there is nothing wrong with the head at present I would consider getting the simplex timing chains and the Syvecs. That will transform the car as it is.
What are the benefit of getting the simplex timing chains?They just didn't have a suitable management system to run it.
It's a very prudent drivers aid on several fronts and it's only there if you want it to be.
The FFF head is a remarkable change from other options. Instead of creating a more punchy engine low down, more of a V8 character it takes the features of a straight six and puts them on steroids.
I would say that if you are not in love with those features then I wouldn't go this route.
Depending on budget though, if there is nothing wrong with the head at present I would consider getting the simplex timing chains and the Syvecs. That will transform the car as it is.
Large loss of weight, thus helping the engine to rev faster.
Blurb:
Timing chain Simplex conversion kit
This is the Simplex timing chain upgrade kit for all TVR Speed 6 engines. This timing chain kit should be considered by anyone building a TVR Speed 6 engine whether it is a standard engine or heavily upgraded. This kit resolves all of the problems associated with the heavy standard duplex chains and halftime bearings as well as offering a performance benefit. The kit consists of all the sprockets and shafts associated with the timing chains on the TVR Speed 6 engine, the upgraded oil fed halftime shaft, 2 needle roller bearings races, 2 simplex timing chains, uprated later style upper timing chain tensioner and the required oil feed system.
This kit offers substantial weight saving when compared to the standard timing chain components as well as repacing the standard halftime bearings which are considered to be inadequate for the job. The halftime shaft is replaced with a larger diameter, drilled shaft which allows oil to be pressure fed directly to the uprated needle roller bearings. This kit saves approximately 1.3 kgs of rotating mass from the standard TVR timing chain asssembly and is a direct replacement for the standard TVR parts with absolutely no machining or further modification work required.
The kit must be fitted in its entirety and all old timing chain components discarded. This kit also includes the 2 standard simplex drive chains for the oil pumps and the water pump but does not include the any sprockets associated with these 2 drive chains as these remain standard. This kit is fitted to all Racing Green TVRs upgrade Speed 6 engines including the FFF. http://www.racinggreentvr.com/TVR/Parts/Upgrades/S...
Blurb:
Timing chain Simplex conversion kit
This is the Simplex timing chain upgrade kit for all TVR Speed 6 engines. This timing chain kit should be considered by anyone building a TVR Speed 6 engine whether it is a standard engine or heavily upgraded. This kit resolves all of the problems associated with the heavy standard duplex chains and halftime bearings as well as offering a performance benefit. The kit consists of all the sprockets and shafts associated with the timing chains on the TVR Speed 6 engine, the upgraded oil fed halftime shaft, 2 needle roller bearings races, 2 simplex timing chains, uprated later style upper timing chain tensioner and the required oil feed system.
This kit offers substantial weight saving when compared to the standard timing chain components as well as repacing the standard halftime bearings which are considered to be inadequate for the job. The halftime shaft is replaced with a larger diameter, drilled shaft which allows oil to be pressure fed directly to the uprated needle roller bearings. This kit saves approximately 1.3 kgs of rotating mass from the standard TVR timing chain asssembly and is a direct replacement for the standard TVR parts with absolutely no machining or further modification work required.
The kit must be fitted in its entirety and all old timing chain components discarded. This kit also includes the 2 standard simplex drive chains for the oil pumps and the water pump but does not include the any sprockets associated with these 2 drive chains as these remain standard. This kit is fitted to all Racing Green TVRs upgrade Speed 6 engines including the FFF. http://www.racinggreentvr.com/TVR/Parts/Upgrades/S...
Diablos-666 said:
Thanks for that. Can you actually feel a difference from saving 1.3kg of motional mass?
How much is it?
Are there any negatives with this upgrade? i.e would you need to rev a bit more when pulling off to stop stalling?
I would guess that the weight of the flywheel would have more impact on the latter. How much is it?
Are there any negatives with this upgrade? i.e would you need to rev a bit more when pulling off to stop stalling?
As part of the overall build it has made my 4L rev at least as freely as a 3.6 and I think a bit more.
Diablos-666 said:
So a standard 3.6 with the chain mods and a modified diff would basically rev its nuts off then.
Sounds interesting.
It might just do exactly that. It might be worth hearing from others who know more but I think it's the case that at a certain point you don't want it too revvy as it can munch things in the head?Sounds interesting.
Certainly - the head etc is a swap item - they keep the old one. This also is the same for ECU - anything they supply.
If you ask for extra outside stuff (ACT exhaust etc), then it is yours.
I will freely admit this came as a surprise (remember I am being completely honest about all the companies I am dealing with), and have asked RG to make 100% sure this is explained to future customers.
If you ask for extra outside stuff (ACT exhaust etc), then it is yours.
I will freely admit this came as a surprise (remember I am being completely honest about all the companies I am dealing with), and have asked RG to make 100% sure this is explained to future customers.
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