RS2.7

errrrr it was an off the shelf kit featured in most of the Ford related mags at the time . You was probably still riding about in a pram then so may of missed it !

CossieRich

iTrader: (1)

pmsl i just love people who join this site and within 30 posts they are throwing their "knowledge" around

You obviously have no idea who Tony is then

RS2.7

I'm not bothered who "Tony" is am i ? I was just telling you that such a twin turbo kit was available in the 1990's and it was featured in the Ford mags . If that upsets you then sorry .

CossieRich

iTrader: (1)

Doesn;t upset me in the slightest, just your comment about him being in a pram was amusing. Heard of a company called turbosystems?

RS2.7

I remember the "turbosystems" windscreen stickers on all the cossies back in the 90's . The same time as the twin turbo kit was out , shame you didn't see it in all the Ford mags .

CossieRich

iTrader: (1)

Tony who was in his pram is Turbosystems

RS2.7

Well he should have remembered the off the shelf twin turbo set up that was available in the 1990's before saying i was talking bollox then .

CossieRich

iTrader: (1)

I dont think he is saying he doesnt remember it. He is saying what you wrote and your understanding of how it works and what it does is bollocks

pa_sjo

A parallel twin turbo setup on an i4 could never be better than a single turbo..

RS2.7

I could have wrote a 1000 word tech article on it but i couldn't be arsed . I know how it works and so does everyone else who read the articles in all the Ford mags about it back in the 90's .

CossieRich

iTrader: (1)

Maybe you should be arsed as there are obviously a few of us who dont understand it then mate?

Martin-Hadland

iTrader: (2)

What are you going on about? The T4 turbo used for the comparison WAS the roller bearing version WITH the exhaust housing mod!

Martin-Hadland

iTrader: (2)

Are we talking about the Turbo Technics K gate system?

SteveH

Alot of us remember it i'm sure. What Tony was trying to say is that 2 small turbos wouldnt be better than one large one, and not that it didnt exist.

And PMSL @ Tony in his pram

Tony built these cars.... seemingly from his pram
https://passionford.com/forum/general-car-related-discussion/254628-the-all-new-improved-desert-spoon-thread.html

RS2.7

Yes mate , glad somebody remembers and it seems i'm not a liar after all

SteveH

See my post above.
No-one called you a liar, I think the logic of having two smaller turbos as opposed to one large one was the reason bollocks was called. If it is so much better how come we dont see some of the very expensive cars running it today? I'm sure Martin and Rod have put lots of effort and development into their engines, yet still run single turbos

Stavros

RS2.7- the K gate sequential turbo thing i remember, so does most. Sequential turbos are nothing new, and easy do-able if you got the room.

The point was, what YOU were describing was utter bollocks that makes no sense to anyone with half a brain.

Ryan G

was the two turbos done on the same engine ? and done on dyno ? or rr ?

Turbosystems

iTrader: (5)

your description of it's operation was bollox ,FYI i was involved with it's testing and development.You may have read about the twin turbo set up in a mag but don't believe the technical spec that can often be bollox.Articles are written by journalists not engine designers.
The turbo's used were a t25 not a t2 a 2wd comp wheel was grafted onto the comp end a hybrid turbo.Garret then produced this exact turbo when the eec4 escort cossie was produced.
The main area that you have read as bollox or misinterpreted is the compressor out put,these where in fact common and fed the standard inlet system.
It was not a sequential system .A special cast exhaust manifold housing the patented k gate valve was used ,cyclinders 1+3 supplied the energy to drive turbo a and cylinders 2+4 fed turbo b.At a determined boost pressure the k gate valve would open allowing all 4 cylinders to flow through both turbine housings.
The affect of this was a large drop in exhaust back pressure as exhaust flow increased.
Hope that is understandable.

pani_k

iTrader: (1)

So let me just see if I have this correct.

Two cylinders feed each turbo (on a 4 cyl engine I'm assuming) and below a certain boost level, this is sustained BUT all the boost generated would travel through the ENTIRE inlet and not to their respective cylinders?

And after a certain level of boost reached, the K-gate valve would open and it would allow all 4 cylinders to flow through both turbines?

Turbosystems

iTrader: (5)

correct

Mike Rainbird

iTrader: (3)

So when I asked if it was earlier, why did you say this you numpty?

Quote:
Originally Posted by Mike Rainbird
So was it one of these that was tested?

I swear your age is starting to show

westus1

iTrader: (6)

so is it just the exhaust manifold thats differant on the k-gate set up, just interested as i've never seen or heard of this before?

pani_k

iTrader: (1)

Sounds like it to me?

And how is it controlled?

ECU controlled or preloaded with an actuator or diaphragm or something?

Chip

iTrader: (3)

FPMSL @ Trying to tell turbosystems how something he helped developed works and getting it wrong

EPIC FAIL

Turbosystems

iTrader: (5)

The purpose of the development was to obtain low lag and high power,the spool up of a standard t3 with the top end of the t4,The results were more lag than a t3 but more power than a t4.The theory was quite simple two smaller turbo's combined will flow more than 1
It is extremely complex and expensive to run sequential turbos hence why they were parallel.
The toyota supra twin turbo is sequential and uses a pair of identical turbo's not one small and one large as people often think.

CossieRich

iTrader: (1)

Oh dear RS2.7

Kelv

iTrader: (4)

Which is something i really like the idea of, just need to know when its available

Martin-Hadland

iTrader: (2)

I think you may be starting to age!! When you asked if it was one of those tested I had just mentioned about the touring cars using the jousing mod years ago, your question appeared to be about that turbo not the roller bearing version.

RS2.7

2 turbos are better than one , the "K" gate set up out performed everything and the reason you ain't seen one is it cost alot more .

RS2.7

it makes no sense to you because you don't know what i'm talking about . Best you swot up on the subject .

RS2.7

You best go back to page 7 where i brought the twin turbo "K" gate system to your attention . Then read all the posts from then on and award yourself a .
Shame no one on here has a "k" gate twin turbo set up with a brace of roller bearing blowers because if they did then you would see the advantages that this system would give over one big turbo .

SteveH

Just how much more? I have no idea how much cars like the reyland escos and rods have in them, but it damn sure aint a cheap build, so maybe they could have come to you for advice?

pa_sjo

Better in what way? Two turbos that flow the same combined as a single larger turbo will be less efficient.

Stu @ M Developments

iTrader: (12)

It has to be said, posts like this are one of the + points about traders not using their comapny names on here. Without that rule, classic quotes like this wouldnt exist.

CossieRich

iTrader: (1)

Bttt for the expert RS2.7

Rod-Tarry

It would be nice to hear about the cars that 'out performed' everything with this twin turbo set-up. Not been around Cosworths as long as Tony but ive not heard of any achievements by these cars.
Must admit im not sure where the second GT42 would fit so I hope this dont catch on.

ps. Cant get the image of Tony in a pram out of my head.

Turbosystems

iTrader: (5)

pair of gt 42's is that your next project rod
there is no problem fitting these turbo's under the bonnet of your sapph,you just won't have any room for the engine roflol

Jay,

iTrader: (4)

does tony suck eggs for lunch ?