4.5 TVR Power supersports + Syvecs review
Discussion
Finally got to drive my car 
can only do 3K revs so first review is limited. Engine exhaust sounds very very different more low growl with the syvecs base map (I prefer the old sound of the 3.6), you can feel it has more torque, pops and bangs have stopped completely but I have a very annoying rattle from the brake pads when going over bad roads. Sounds like the exhaust is going to drop off! The brakes pads have been replaced with Carbon lorraine ones but feel they can't be the right ones due to the rattling sound (like marbles in a tin!), It's definitely the pads making the noise as it goes if you slightly apply the brake pedal while on the move (will get this looked at after running in) The brakes pads by the way are fantastic with very little squeal just hope I don't have to put the old pads back in.
At low speed it is difficult to stop it snatching but getting used to it and hope this will be sorted at final mapping.
It is very smooth on tick-over and has instant response if you push the pedal fast. It starts very easily with a little throttle although 50% of the time the Oil pressure sensor warning comes on it stopped after replacing with the upgraded one but now it's back but doesn't have the beep!.
To sum up at the moment I would say it's not that different to the 3.6 up-to 3K revs it's just the sound that is the biggest difference, hopefully a new exhaust will make it sound more to my liking. but the sound under the bonnet is much better, not as agricultural as it was. Will try to do a vid so you can see/hear what I mean.
The Syvecs mapp dial has been put on the left side of the steering column would have liked it in a more descrete place.
On a side note the syvecs must have done something to the display ecu, the dash display now stays on the last screen it was on when you awitched off instead of defaulting to the first display everytime.
can only do 3K revs so first review is limited. Engine exhaust sounds very very different more low growl with the syvecs base map (I prefer the old sound of the 3.6), you can feel it has more torque, pops and bangs have stopped completely but I have a very annoying rattle from the brake pads when going over bad roads. Sounds like the exhaust is going to drop off! The brakes pads have been replaced with Carbon lorraine ones but feel they can't be the right ones due to the rattling sound (like marbles in a tin!), It's definitely the pads making the noise as it goes if you slightly apply the brake pedal while on the move (will get this looked at after running in) The brakes pads by the way are fantastic with very little squeal just hope I don't have to put the old pads back in.At low speed it is difficult to stop it snatching but getting used to it and hope this will be sorted at final mapping.
It is very smooth on tick-over and has instant response if you push the pedal fast. It starts very easily with a little throttle although 50% of the time the Oil pressure sensor warning comes on it stopped after replacing with the upgraded one but now it's back but doesn't have the beep!.
To sum up at the moment I would say it's not that different to the 3.6 up-to 3K revs it's just the sound that is the biggest difference, hopefully a new exhaust will make it sound more to my liking. but the sound under the bonnet is much better, not as agricultural as it was. Will try to do a vid so you can see/hear what I mean.
The Syvecs mapp dial has been put on the left side of the steering column would have liked it in a more descrete place.
On a side note the syvecs must have done something to the display ecu, the dash display now stays on the last screen it was on when you awitched off instead of defaulting to the first display everytime.
I've got the Carbone Lorraine pads in my T350c , fitted myself and no rattles or issues. They are now squealing a little bit when pulling up to lights etc around town but thats it, otherwise great.
Keep us posted on how the engine goes, interesting to help me decide what to get in the future.
Keep us posted on how the engine goes, interesting to help me decide what to get in the future.
Getsis said:
Went for Syvecs for the traction control (adjustable) full knock sensor and the sequential injection.
Omex wasn't worth the cost in my opinion above STD
I was also thinking along these lines but am told that the fuelling timing is only effective at low revs, along with the knock sensor. What was their take on this?Omex wasn't worth the cost in my opinion above STD
Edited by Getsis on Tuesday 17th May 08:20
jpp said:
Getsis said:
Went for Syvecs for the traction control (adjustable) full knock sensor and the sequential injection.
Omex wasn't worth the cost in my opinion above STD
I was also thinking along these lines but am told that the fuelling timing is only effective at low revs, along with the knock sensor. What was their take on this?Omex wasn't worth the cost in my opinion above STD
Edited by Getsis on Tuesday 17th May 08:20
Now in Norway the run was great but there is a great deal more heat generated in the cabin, the handbrake and aluminium surround was almost too hot to touch, never got anywhere near this temp before and this was just cruising at 70MPH, using a lot more fuel too. The oil temp got 89 deg C at one point also never seen it this high but could be due the running in oil being mineral based, will change oil to semi synthetic tomorrow due to it's now done almost 1K miles since rebuild. Hope to be back in the UK next month for final mapping.
It does still have some pops and bangs but not as lound, can only be heard with the roof or windows open.
On a side note I fitted the carbon airbox from ACT! what a pain that was to do. didn't realise you have to drill 8 holes in the thing and bond in two tube connectors! (don't know why it has two as only 1 is used but I put it in anyway for sake of it.) It's not an exact copy so getting the holes in the correct places is time consuming job! got one wrong but it's in the lower half so doesn't affect filtering, will put a rubber bung in it later.
It does still have some pops and bangs but not as lound, can only be heard with the roof or windows open.
On a side note I fitted the carbon airbox from ACT! what a pain that was to do. didn't realise you have to drill 8 holes in the thing and bond in two tube connectors! (don't know why it has two as only 1 is used but I put it in anyway for sake of it.) It's not an exact copy so getting the holes in the correct places is time consuming job! got one wrong but it's in the lower half so doesn't affect filtering, will put a rubber bung in it later.
Interesting. Does your car still have the cats in as that's where most of the heat causing a hot gearstick comes from. They could be overheating due to it running too rich??? Would also explain the increased fuel consumption and the pops and bangs which it shouldn't do with the Syvecs, unless you've mapped it to do it?
Edited by dvs_dave on Monday 6th June 04:10
I have RG sports cats in now (not decats) Strange thing is that it's only the handbrake and surround, the gearstick gets a little warm the same as it always has. I have the gearstick heat sink but not put it on yet. Going to look at this at the weekend.
I now don't think the rattling is the pads I think it might be the half shafts!. Syvecs has only a base map and is a nightmare to start when engine is hot.
I now don't think the rattling is the pads I think it might be the half shafts!. Syvecs has only a base map and is a nightmare to start when engine is hot.
Yep, I would definately suggest overheating cats due to something causing it to run rich. Also explains the poor fuel consumption and the pops and bangs. Could be the coil pack (but this is obvious as it runs rough), or more likely the new ecu playing silly buggers.
The heat you get in the gearstick and handbrake is from the exhausts/cats. On my car, the cats started to collapse and burn out due to a bad coil pack causing unburnt fuel to be sent into the cats. The handbrake and gearstick got very hot! FYI later cars already have an insulator on the gearstick so overheating cats is not as apparant from the gearstick temp but the hot handbrake and the additional heatsoak is the giveaway. As an aside, a new coil pack fixed it but the decat made the cabin and the controls much cooler and also extended the life of the n/s engine mount.
Anyway, you need to be careful driving it as there's a good chance that the cats have been damaged and are perhaps starting to collapse adding to the overheating problem. In addition to this, driving a long way with blasting hot cats will see your n/s engine mount melt in short order which would explain the rattling too.
Another source of rattling can be the heat sheilds welded onto the cat body coming loose and rattling (sounds a bit like pinking
). Mine did this for ages and I couldn't identify the source other than it was coming from the exhausts; until one day I was driving down the A1 and there was a clanging bang as something fell off and I saw a curved piece of metal bounce down the road behind me and the rattle suddenly stopped. I pulled over to check the car over, put 2+2 together and carried on my way with a new found rattle free car. As my car is decatted, the now missing heat sheild (since confirmed after a look) is a non issue.
Either way, I'd recommend speaking to someone more knowledgeable about it before driving it much further. A quick emmissions test at a local MOT station equivalent would be well worth the effort to help identify any mixture problems?
The heat you get in the gearstick and handbrake is from the exhausts/cats. On my car, the cats started to collapse and burn out due to a bad coil pack causing unburnt fuel to be sent into the cats. The handbrake and gearstick got very hot! FYI later cars already have an insulator on the gearstick so overheating cats is not as apparant from the gearstick temp but the hot handbrake and the additional heatsoak is the giveaway. As an aside, a new coil pack fixed it but the decat made the cabin and the controls much cooler and also extended the life of the n/s engine mount.
Anyway, you need to be careful driving it as there's a good chance that the cats have been damaged and are perhaps starting to collapse adding to the overheating problem. In addition to this, driving a long way with blasting hot cats will see your n/s engine mount melt in short order which would explain the rattling too.
Another source of rattling can be the heat sheilds welded onto the cat body coming loose and rattling (sounds a bit like pinking
). Mine did this for ages and I couldn't identify the source other than it was coming from the exhausts; until one day I was driving down the A1 and there was a clanging bang as something fell off and I saw a curved piece of metal bounce down the road behind me and the rattle suddenly stopped. I pulled over to check the car over, put 2+2 together and carried on my way with a new found rattle free car. As my car is decatted, the now missing heat sheild (since confirmed after a look) is a non issue.Either way, I'd recommend speaking to someone more knowledgeable about it before driving it much further. A quick emmissions test at a local MOT station equivalent would be well worth the effort to help identify any mixture problems?
Ok now had chance to open the car up on the way back to the UK through Germany for the first time. (still not mapped) And can report my first thought as I accelerated to 165 mph from 65mph "f
k me this is fast". After filling up I decided to test the acceleration rejoining the motorway and as soon as it hit around 5K revs it was astonishing, wasn't expecting it be so brutal . I was supposed to drop the car of for final inspection and setting up had a few problems along the way, missing the ferry, flat tyre and alternator on it's way out so car is now in my garage waiting to sort it out.
I can say without doubt the upgrade was worth the dosh. At the petrol station a German in an M5 (who must have been behind me said "I thought I had a fast car but that is mental".
k me this is fast". After filling up I decided to test the acceleration rejoining the motorway and as soon as it hit around 5K revs it was astonishing, wasn't expecting it be so brutal . I was supposed to drop the car of for final inspection and setting up had a few problems along the way, missing the ferry, flat tyre and alternator on it's way out so car is now in my garage waiting to sort it out.I can say without doubt the upgrade was worth the dosh. At the petrol station a German in an M5 (who must have been behind me said "I thought I had a fast car but that is mental"
.Getsis said:
Ok now had chance to open the car up on the way back to the UK through Germany for the first time. (still not mapped) And can report my first thought as I accelerated to 165 mph from 65mph "fk me this is fast". After filling up I decided to test the acceleration rejoining the motorway and as soon as it hit around 5K revs it was astonishing, wasn't expecting it be so brutal . I was supposed to drop the car of for final inspection and setting up had a few problems along the way, missing the ferry, flat tyre and alternator on it's way out so car is now in my garage waiting to sort it out.
I can say without doubt the upgrade was worth the dosh. At the petrol station a German in an M5 (who must have been behind me said "I thought I had a fast car but that is mental".
k me this is fast". After filling up I decided to test the acceleration rejoining the motorway and as soon as it hit around 5K revs it was astonishing, wasn't expecting it be so brutal . I was supposed to drop the car of for final inspection and setting up had a few problems along the way, missing the ferry, flat tyre and alternator on it's way out so car is now in my garage waiting to sort it out.I can say without doubt the upgrade was worth the dosh. At the petrol station a German in an M5 (who must have been behind me said "I thought I had a fast car but that is mental"
.
Getsis said:
Ok now had chance to open the car up on the way back to the UK through Germany for the first time. (still not mapped) And can report my first thought as I accelerated to 165 mph from 65mph "fk me this is fast". After filling up I decided to test the acceleration rejoining the motorway and as soon as it hit around 5K revs it was astonishing, wasn't expecting it be so brutal . I was supposed to drop the car of for final inspection and setting up had a few problems along the way, missing the ferry, flat tyre and alternator on it's way out so car is now in my garage waiting to sort it out.
I can say without doubt the upgrade was worth the dosh. At the petrol station a German in an M5 (who must have been behind me said "I thought I had a fast car but that is mental".
Music to my ears! I should have my Tuscan S 4.5 back later this week...k me this is fast". After filling up I decided to test the acceleration rejoining the motorway and as soon as it hit around 5K revs it was astonishing, wasn't expecting it be so brutal . I was supposed to drop the car of for final inspection and setting up had a few problems along the way, missing the ferry, flat tyre and alternator on it's way out so car is now in my garage waiting to sort it out.I can say without doubt the upgrade was worth the dosh. At the petrol station a German in an M5 (who must have been behind me said "I thought I had a fast car but that is mental"
.I forgot to mention the down side ! Heat has become a big problem, the headers will need ceramic coating or wrapped along with more insulation under the handbreak tunnel, the paint on the heater box has started to blister, the engine mount on the exhaust side surely won't last long without some protection. Heat soak into the cabin is huge, The hand break surround got so hot it was too hot to touch (I couldn't put my forearm on it). I was worried the car was going to instantaneously combust.
Getsis said:
I forgot to mention the down side ! Heat has become a big problem, the headers will need ceramic coating or wrapped along with more insulation under the handbreak tunnel, the paint on the heater box has started to blister, the engine mount on the exhaust side surely won't last long without some protection. Heat soak into the cabin is huge, The hand break surround got so hot it was too hot to touch (I couldn't put my forearm on it). I was worried the car was going to instantaneously combust.
I've had the headers wrapped, hopefully that helps...Gassing Station | Speed Six Engine | Top of Page | What's New | My Stuff