exhaust & manifold - Janspeed vs K-Tec

[teun]

Is the K-tec full exhaust system a re-branded Janspeed? Looks quite similar.
If not,
Any feedback / difference you've noticed/known regarding performance and comfort (volume, boom @ 3000 rpm) between the 2.
I'm particular interested in the comfort as the car is driven daily and on highways mainly.
appreciate your comments
thanks Teun

 

[Ali]

Not sure about the mani's. But K-tec do their own backbox... Might be there own stuff, or their backbox with a janspeed mani...(not a particularly constructive answer - sorry!)

The full Janspeed system does sound nice tho! - Worth a look, seach for Peter255. The pipes look naff tho, but you can fabricate new ones at cost if you wish.

I've got the K-tec rear box and it's a lovely sounding unit. Happy.

 

[Spike]

see my posts on janspeed exhaust, i am sure you realise the janspeed pipe you are on about is designed for the mk1, yes it does fit but there are issues that is why i am having some made at the mo by janspeed specifically for the mk2. eventually i will get the manifolds made for the 255 also, if you need any more info phone or pm me.

 

[captain]

see my posts on janspeed exhaust, i am sure you realise the janspeed pipe you are on about is designed for the mk1, yes it does fit but there are issues

please inlighten me with the issues of the system as there are a few people that have the janspeed system [smilie=icon_eek.gif]
because according to janspeed the off the shelf back box fits phase 1 with no problems and they clearly say you need manifolds to fit it on the phase 2,
i personaly think when they designed the backbox and system they used a phase 1 to mock up.
It cost me £50 to get new 4 bolt stainless flanges laser cut and welded on to the off the shelf phase 1 decat pipes to make it fit my phase 2 perfect.
[album]5025[/album]
[album]5026[/album]
[album]5028[/album]
I think it would be a very quick alteration of there jig to fit square flanges not hundreds of pounds to make a new one

 

[Spike]

Mmmm, interesting way round the problem,
yes it can be done and there are no real ISSUES with the janspeed box, however, in my opinion, the mk1 janspeed is for the mk1 not the mk2. the higher power output needs a larger tube size as the mk1 system i think is marginal.
also if you lookat the way the flanges sit on the mk1 janspeed , they dont sit square to each other, no prob if you fit the manifolds on the mk 1 but when you try and adapt to the mk 2 it just does not sit right.
i have spoke to the man who designed the janspeed system and there are valid reasons why it was designed the way it was and i am not prepared to go into those reasons here.
overall i decided it was far better to start from scratch withthe original designers rather than bodging bits to fit, hence the hundreds of pounds needed to get it right.
i you are not convinced, look at the original tube size on the mk2 then look at the mk1 janspeed.

 

[teun]

thanks, most useful
and I've completely missed the posts regarding the group buy..... [smilie=icon_aaargh.gif]
Interesting read regarding the tube diameter
What about the manifolds - compared with Ph1, a PH2 should have a slightly larger diameter as well for the manifold? or is this just in theory...

 

[captain]

Mmmm, interesting way round the problem,
yes it can be done and there are no real ISSUES with the janspeed box, however, in my opinion, the mk1 janspeed is for the mk1 not the mk2. the higher power output needs a larger tube size as the mk1 system i think is marginal.
also if you lookat the way the flanges sit on the mk1 janspeed , they dont sit square to each other, no prob if you fit the manifolds on the mk 1 but when you try and adapt to the mk 2 it just does not sit right.
i have spoke to the man who designed the janspeed system and there are valid reasons why it was designed the way it was and i am not prepared to go into those reasons here.
overall i decided it was far better to start from scratch withthe original designers rather than bodging bits to fit, hence the hundreds of pounds needed to get it right.
i you are not convinced, look at the original tube size on the mk2 then look at the mk1 janspeed.

The square flanges do sit square to each other on the phase 2 with a slight down ward angle of afew degress on the conecting pipes into the backbox and this was taken into account when i got them welded.
As for the size of the tubing yes the janspeed system is smaller than the oem mk2 pipes.
This is a quote for the janspeed system "Testing has now taken place and the complete system has produced a gain of 16bhp on the Mk1 V6. The system will also give very similar gains on the Mk2 255"
So if your original designers are right and what your saying is the pipes on the system are to small for the phase 2 looks like they are the ones bodging in the first place!!

personally i think they are fleecing you

 

[Spike]

Mmmm, interesting way round the problem,
yes it can be done and there are no real ISSUES with the janspeed box, however, in my opinion, the mk1 janspeed is for the mk1 not the mk2. the higher power output needs a larger tube size as the mk1 system i think is marginal.
also if you lookat the way the flanges sit on the mk1 janspeed , they dont sit square to each other, no prob if you fit the manifolds on the mk 1 but when you try and adapt to the mk 2 it just does not sit right.
i have spoke to the man who designed the janspeed system and there are valid reasons why it was designed the way it was and i am not prepared to go into those reasons here.
overall i decided it was far better to start from scratch withthe original designers rather than bodging bits to fit, hence the hundreds of pounds needed to get it right.
i you are not convinced, look at the original tube size on the mk2 then look at the mk1 janspeed.

The square flanges do sit square to each other on the phase 2 with a slight down ward angle of afew degress on the conecting pipes into the backbox and this was taken into account when i got them welded.
As for the size of the tubing yes the janspeed system is smaller than the oem mk2 pipes.
This is a quote for the janspeed system "Testing has now taken place and the complete system has produced a gain of 16bhp on the Mk1 V6. The system will also give very similar gains on the Mk2 255"
So if your original designers are right and what your saying is the pipes on the system are to small for the phase 2 looks like they are the ones bodging in the first place!!

personally i think they are fleecing you

you have the right to your own opinion! but they designed and released the mk1 system before the mk2 was released.
you say the flanges sit square on the mk2, thats what i said. but if you look at the mk 1 janspeed they dont sit square, this is to fit direct to their manifolds, which you are not using hence having to take into account when welding.
as for power output, have you had yours on a dyno, if so what was the result?

 

[Spike]

TIM, so its that obvious, i started as an apprentice in 1977 and have been mending vehicles ever since, so as you will probably agree.........
I KNOW NOTHING, DON'T LISTEN TO ME, GO DO AS YOU LIKE.

anyway, nice to hear from you tim, carry on regardless.

 

[teun]

becoming an interesting post now - especially for readers interested in the cultural differences. I always thought the English are famous for being polite and not being straight forward in the communication, whereas the Dutch are famous for, if not being blunt....

But guys, I do appreciate the opinions - ie in the discussion Intrax vs KW.

Still I do have one question: the larger tube size is also true for the manifolds, isn't it? So the Janspeed/KTEC full system isn't the first choice for a PH 2?

thanks

 

[Spike]

becoming an interesting post now - especially for readers interested in the cultural differences. I always thought the English are famous for being polite and not being straight forward in the communication, whereas the Dutch are famous for, if not being blunt....

But guys, I do appreciate the opinions - ie in the discussion Intrax vs KW.

Still I do have one question: the larger tube size is also true for the manifolds, isn't it? So the Janspeed/KTEC full system isn't the first choice for a PH 2?

thanks

my opinion on the janspeed manifolds is that the tube size is spot on, the tube length is a little short but you have to work with the constraints of the car, a few think the tube ought to be bigger but i would consider that for all out race or high gas flow like nitrous or pressure charged. a useful comment you might get is from brett (oldschoolbaby) with whom i have had a few freindly arguments. try and pm him on this.

 

[captain]

Captain is one of the "i know better crews" - ive experienced it in person on here before Spike.

fuck me tim ever heard the term "calling the kettle black" pmsl For the record I never said once spike didn't know what he was on about I asked him the issues regarding the janspeed system and my personal thoughts on the cost of getting a new back box made with 1/4" bigger tube than the off the shelf part that can be altered really easy when the claim from janspeed says it's good for the mk2