Exhaust Geeks required
Discussion
Gogoplata said:
What are people’s opinions on Vortex exhausts? I recently stumbled across their website & the figures look too good to be true.
http://www.vortex-performance-exhausts.co.uk/racef...
My initial reaction was http://www.vortex-performance-exhausts.co.uk/racef...
After looking into them I didn't find any reason to change my views. Happy to be proven wrong though, but I suspect they rank somewhere up there with the turbonator.
300bhp/ton said:
My initial reaction was
After looking into them I didn't find any reason to change my views. Happy to be proven wrong though, but I suspect they rank somewhere up there with the turbonator.
Haha that was my initial reaction too. I thought I might have been missing something, but I guess not. After looking into them I didn't find any reason to change my views. Happy to be proven wrong though, but I suspect they rank somewhere up there with the turbonator.
Bit of a thread hi-jack but there are clearly some very knowledgeable exhaust types on here and a bit of feedback always helps:
I've got a V-twin in the garage - seeing as a 4-2-1 or 4-1 isn't possible never mind sensible is there a way of finding out where the ideal maximum power junction point should be or should would they be better off separate? Obviously this will depend on target revs (11,000rpm redline) so I don't mind background subject reading if anyone can recommend a good book or 2.
I've got a V-twin in the garage - seeing as a 4-2-1 or 4-1 isn't possible never mind sensible is there a way of finding out where the ideal maximum power junction point should be or should would they be better off separate? Obviously this will depend on target revs (11,000rpm redline) so I don't mind background subject reading if anyone can recommend a good book or 2.
Max_Torque said:
well for a starter, you don't want to use the "same" fuel and spark values, as the engine pressure ratio and residual gas fraction have been changed.
I know you don't want to; I was asking about if you do. I can't imagine that most people fitting after market exhausts bother to get an engine remapped to suit. Gogoplata said:
What are people’s opinions on Vortex exhausts? I recently stumbled across their website & the figures look too good to be true.
http://www.vortex-performance-exhausts.co.uk/racef...
what a joke! ;-)http://www.vortex-performance-exhausts.co.uk/racef...
they probably claim it makes you more attractive to the opposite sex, and will prevent world poverty as well....
this:
vortex-performance-exhausts said:
Jonathan Morris came to Vortex with his Ford Focus st170
Read About his experiences below
I approached Vortex exhausts on the Sunday at the Autosport show as I had a slight feeling that these guys could be some help to yours and my cause of tuning.
I had spoken to Blue Flame on the Saturday with some eagerness of taking advantage of their product and purchasing a discounted system from them at the show but something was drawing me to the Vortex stand, like a moth to a flame and I felt compelled to push myself upon them as in such a way of saying “look guys I’ve been used as a Guinea pig before for UK tuners” i.e Pumabuild quick shifter and Helix autosport clutch and flywheel that I had a this strong feeling that they could bring something to the party, and that was before I looked at or even read anything on there stand…lol!
I explained to them of what I had done to our vehicle and how other companies have tried and managed to draw some power from it and to what lengths people on here have gone to to get 200bhp and at what cost.
I also went on to explain my passion for going on the track and working towards undertaking my ARDs test in the future, and to what spec my vehicle is at the moment. lol
I passed on my details and left it at that with a glimmer of hope that they would contact me in the near future; they did in a way of an automated email stating that my voucher was still valid and that I could contact the team to book in my vehicle, so I thought that was that so I concentrated on my next purchase Leda competition coilovers and remote reservoirs.
Then one day while I was chatting to my boss on the phone another caller was trying to get though, it wasn’t till I Google’d the number 30 minutes later till I found out it was Vortex exhausts, so after a explosion of excitement and my lass telling me to get off the phone to her and ring them back, I did and had a lengthy conversation to a very nice chap called Barry who’s words will ring in my ears for years to come “I’m very interested in your vehicle” so I booked the ST in and waited for Tuesday the 9th Feb and it couldn’t come quick enough
until Friday night at work before after I had planned to clean the car inside and out and get it presentable for the coming Tuesday I badly sprained my ankle and that was that until Dan my van driving bestest buddy stepped in on Monday night and offered to drive a car that isn’t a van or drives like any ordinary car at 4am to get to junction 30 on the M25 for 9am that morning, and he did and found the car in his words “very different to a Skoda Octavia” lol... bless him.
I arrived that morning with no hopes of power gains or how brill it would be, I had of course being looking at you tube and looking on Vortex’s website and even researching if they imported their goods as when I picked up the piece of exhaust the Vortex part I just thought of an aircraft engine but without the moving parts and thought, brilliant!!! But does it work? Will it cause a sucking effect and help alleviate the exhaust gasses and make the engine burn more efficiently? Well if it don’t I have a new shiny exhaust if anything!
We sat down with Barry and a coffee as I was pushing bear on 26 hours of being awake at that point and he explained what he wanted to do with my car and what to expect, more power, better fuel economy - the usual sales pitch so I thought (yes I’m sometimes very pessimistic) but I am also a tangible kind of guy. lol
Then Barry went on to explain that Malcolm Wilson from M sport had invited him to their workshops and at this point his phone kept going off and it turned out to be Prodrive want to set up a meeting as they had seen a review in a 4X4 magazine. I thought he was yanking my chain at this point lol… but something seem to tell me he was telling the truth. And with having a meeting with the Department of Trade and Industry 2 weeks ago helping him with distribution abroad this was too good to be true.
So as we were having a nice chat and I was ordering the biggest breakfast baguette in history. The guys had been out in the ST and had done a 0 – 60 mph test and plugged some computer stuff into the ecu and a sticker on the back wheel and a sucker to the side of the car measuring the wheel speed and acquired some data to get a starting point before the Vortex exhaust went on.
Barry then explained that a 2/12" system was to be put on and showed me where his Vortex part would sit and then let me choose the tail pipe design, (that took the most time and pictures) as I left the design boss at home sleeping! So lots of picture messages and emails rammed with pictures of random arms holding tail pipes up to the back of the car, then we/she found one she liked and it’s not a bad decision to be fair.
Well about 4 hours later and a bit of a snooze in Barry office as the boys Dan and James had gone for a walk to the Lake Side shopping centre, (good excuse to take your girls shopping guys and park your car wink wink) I went o see how the fitter was getting on but the car was out testing, 30 minutes passed and I heard this nice tight burble and then my saw my bright headlights and though yep here she is and that sounds nice, the tester got out of the car with a very pleased grim on his face and walked over to me and shook my hand and said what a lovely car you have, (hmmmm what’s he done to it I thought) and the computer tester guy got out and seemed very pleased with himself also.
So I said to the tester come on jump in the passenger side and give me directions I want to see for myself what you are both grinning about.
I started her up and thought yeah she’s ticking over real smoother and I drove up to the end of the road and found straight away that gear changing was more slick and that the car felt so transformed in not just responsiveness or a nice sound emitting from the rear but how it seemed effortless to go from gear to gear. It felt like someone had installed a new smoother engine and not told me.
I was then directed to a straight and was told just open her up in all the gears and wow what a noticeable difference bottom end has more get up and go and top end just wants to keep pulling. (I’m not talking like it feels like a turbo has been strapped to it.) It was just a totally transformed car.
I got back and the guys put her in the air and I got a few pictures and then copied the map from the ECU and sent it to a Guy called Koch Fahrzeugtechnik from Germany - he’s meant to be a pope of the tuning world.
Vortex and I are waiting to hear from this guy to see what he can do. In the meantime I have been asked to monitor the fuel consumption level on my normal usage and driving and also the drivability of the vehicle and how much throttle input I use compared to how it responded before. So I thought no better person to drive the way home again was Dan. We brimmed the car to where it was before we left and kept a record of 28 litres of fuel we had used on the way down and the manner of the way we was driving. We then drove another 240 miles back the same route and speeds back and filled up again at the same place as from where we had set off but his time only being able to put 22 litres in her, that couldn’t be right (we thought) but all 3 of us witnessed this and I still can’t believe it!
Power wise I have been told a figure but like the fuel consumption I still don’t believe it as we all know how thirsty the ST170 really is. I’ve been told close to 200bhp but I will hold the exact figure close to my chest until she’s been on rolling road as I’ll take her to Dennis Vasseys at Barnetby if I get over the bridge tomorrow.
All gears have more noticeable power. Foot down in 6th is surprising but all gears have more of an edge and flicking through the gears and engaging in each gear and putting the power down makes you want to have a gearbox full of more gears due to the pick up and you never want to run out of road.
Throttle position and pressure is extremely noticeable in regards to less pressure is needed to get to a desired speed and maintain it. Also as we travelled along the A1 and not just Dan felt that his gear changes were a lot smoother and slicker but so did James and myself. Dan felt more relaxed and enjoyed the drive unlike before.
The noise on motorways is nothing. We actually forgot about it until we stopped for a Macdonald’s in Lincolnshire and had to slow down for a roundabout and then the exhaust said “hello” again.
My dearest drove all 4 of use to Bridlington last night to take Dan back and she straight away noticed that it had more power and the sound when she was having some fun wasn’t intrusive and over powering to the inside of the vehicle. The only way I know she is having fun in the car is when she wriggles deep into the sparcos and grips the steering wheel with both hands at a 9:15 position and does not say anything and starts hitting apex’s and lines on corners that make me a proud man.
Cold start-up this morning was interesting I knew she was going to have a little noise as the ST170 breaths heavy but it was nice to listen to it until she was warm and then she quietened down and just purred.
is utter bo**ocks! (btw, i did most of the performance develpment of the ST170 for Ford, so i know what i'm talking about, and i spent 8years working for Prodrive, and no, we didn't generally ask aftermarker tuners for help.......)Read About his experiences below
I approached Vortex exhausts on the Sunday at the Autosport show as I had a slight feeling that these guys could be some help to yours and my cause of tuning.
I had spoken to Blue Flame on the Saturday with some eagerness of taking advantage of their product and purchasing a discounted system from them at the show but something was drawing me to the Vortex stand, like a moth to a flame and I felt compelled to push myself upon them as in such a way of saying “look guys I’ve been used as a Guinea pig before for UK tuners” i.e Pumabuild quick shifter and Helix autosport clutch and flywheel that I had a this strong feeling that they could bring something to the party, and that was before I looked at or even read anything on there stand…lol!
I explained to them of what I had done to our vehicle and how other companies have tried and managed to draw some power from it and to what lengths people on here have gone to to get 200bhp and at what cost.
I also went on to explain my passion for going on the track and working towards undertaking my ARDs test in the future, and to what spec my vehicle is at the moment. lol
I passed on my details and left it at that with a glimmer of hope that they would contact me in the near future; they did in a way of an automated email stating that my voucher was still valid and that I could contact the team to book in my vehicle, so I thought that was that so I concentrated on my next purchase Leda competition coilovers and remote reservoirs.
Then one day while I was chatting to my boss on the phone another caller was trying to get though, it wasn’t till I Google’d the number 30 minutes later till I found out it was Vortex exhausts, so after a explosion of excitement and my lass telling me to get off the phone to her and ring them back, I did and had a lengthy conversation to a very nice chap called Barry who’s words will ring in my ears for years to come “I’m very interested in your vehicle” so I booked the ST in and waited for Tuesday the 9th Feb and it couldn’t come quick enough
until Friday night at work before after I had planned to clean the car inside and out and get it presentable for the coming Tuesday I badly sprained my ankle and that was that until Dan my van driving bestest buddy stepped in on Monday night and offered to drive a car that isn’t a van or drives like any ordinary car at 4am to get to junction 30 on the M25 for 9am that morning, and he did and found the car in his words “very different to a Skoda Octavia” lol... bless him.
I arrived that morning with no hopes of power gains or how brill it would be, I had of course being looking at you tube and looking on Vortex’s website and even researching if they imported their goods as when I picked up the piece of exhaust the Vortex part I just thought of an aircraft engine but without the moving parts and thought, brilliant!!! But does it work? Will it cause a sucking effect and help alleviate the exhaust gasses and make the engine burn more efficiently? Well if it don’t I have a new shiny exhaust if anything!
We sat down with Barry and a coffee as I was pushing bear on 26 hours of being awake at that point and he explained what he wanted to do with my car and what to expect, more power, better fuel economy - the usual sales pitch so I thought (yes I’m sometimes very pessimistic) but I am also a tangible kind of guy. lol
Then Barry went on to explain that Malcolm Wilson from M sport had invited him to their workshops and at this point his phone kept going off and it turned out to be Prodrive want to set up a meeting as they had seen a review in a 4X4 magazine. I thought he was yanking my chain at this point lol… but something seem to tell me he was telling the truth. And with having a meeting with the Department of Trade and Industry 2 weeks ago helping him with distribution abroad this was too good to be true.
So as we were having a nice chat and I was ordering the biggest breakfast baguette in history. The guys had been out in the ST and had done a 0 – 60 mph test and plugged some computer stuff into the ecu and a sticker on the back wheel and a sucker to the side of the car measuring the wheel speed and acquired some data to get a starting point before the Vortex exhaust went on.
Barry then explained that a 2/12" system was to be put on and showed me where his Vortex part would sit and then let me choose the tail pipe design, (that took the most time and pictures) as I left the design boss at home sleeping! So lots of picture messages and emails rammed with pictures of random arms holding tail pipes up to the back of the car, then we/she found one she liked and it’s not a bad decision to be fair.
Well about 4 hours later and a bit of a snooze in Barry office as the boys Dan and James had gone for a walk to the Lake Side shopping centre, (good excuse to take your girls shopping guys and park your car wink wink) I went o see how the fitter was getting on but the car was out testing, 30 minutes passed and I heard this nice tight burble and then my saw my bright headlights and though yep here she is and that sounds nice, the tester got out of the car with a very pleased grim on his face and walked over to me and shook my hand and said what a lovely car you have, (hmmmm what’s he done to it I thought) and the computer tester guy got out and seemed very pleased with himself also.
So I said to the tester come on jump in the passenger side and give me directions I want to see for myself what you are both grinning about.
I started her up and thought yeah she’s ticking over real smoother and I drove up to the end of the road and found straight away that gear changing was more slick and that the car felt so transformed in not just responsiveness or a nice sound emitting from the rear but how it seemed effortless to go from gear to gear. It felt like someone had installed a new smoother engine and not told me.
I was then directed to a straight and was told just open her up in all the gears and wow what a noticeable difference bottom end has more get up and go and top end just wants to keep pulling. (I’m not talking like it feels like a turbo has been strapped to it.) It was just a totally transformed car.
I got back and the guys put her in the air and I got a few pictures and then copied the map from the ECU and sent it to a Guy called Koch Fahrzeugtechnik from Germany - he’s meant to be a pope of the tuning world.
Vortex and I are waiting to hear from this guy to see what he can do. In the meantime I have been asked to monitor the fuel consumption level on my normal usage and driving and also the drivability of the vehicle and how much throttle input I use compared to how it responded before. So I thought no better person to drive the way home again was Dan. We brimmed the car to where it was before we left and kept a record of 28 litres of fuel we had used on the way down and the manner of the way we was driving. We then drove another 240 miles back the same route and speeds back and filled up again at the same place as from where we had set off but his time only being able to put 22 litres in her, that couldn’t be right (we thought) but all 3 of us witnessed this and I still can’t believe it!
Power wise I have been told a figure but like the fuel consumption I still don’t believe it as we all know how thirsty the ST170 really is. I’ve been told close to 200bhp but I will hold the exact figure close to my chest until she’s been on rolling road as I’ll take her to Dennis Vasseys at Barnetby if I get over the bridge tomorrow.
All gears have more noticeable power. Foot down in 6th is surprising but all gears have more of an edge and flicking through the gears and engaging in each gear and putting the power down makes you want to have a gearbox full of more gears due to the pick up and you never want to run out of road.
Throttle position and pressure is extremely noticeable in regards to less pressure is needed to get to a desired speed and maintain it. Also as we travelled along the A1 and not just Dan felt that his gear changes were a lot smoother and slicker but so did James and myself. Dan felt more relaxed and enjoyed the drive unlike before.
The noise on motorways is nothing. We actually forgot about it until we stopped for a Macdonald’s in Lincolnshire and had to slow down for a roundabout and then the exhaust said “hello” again.
My dearest drove all 4 of use to Bridlington last night to take Dan back and she straight away noticed that it had more power and the sound when she was having some fun wasn’t intrusive and over powering to the inside of the vehicle. The only way I know she is having fun in the car is when she wriggles deep into the sparcos and grips the steering wheel with both hands at a 9:15 position and does not say anything and starts hitting apex’s and lines on corners that make me a proud man.
Cold start-up this morning was interesting I knew she was going to have a little noise as the ST170 breaths heavy but it was nice to listen to it until she was warm and then she quietened down and just purred.
the "discover how our exhausts work" bit is absolutely made up science, in fact, no science is involved. The pictures just show random moving dots, and then magically the power increases by 15%........
Personally, i would expect the Advertising Standards Agency to have something to say about the claims made on that website
Edited by anonymous-user on Tuesday 17th May 14:37
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