i would like to buy a tubular manifold not only because they look great but i wanting a couple of extra ponnies from the old girl without having to wind the boost up or other unsafe ways on mfi..so what manifolds are you running and what are your experiences from them.do they make a bit diffrence?? any pics are welcome...

discuss

 

From what i've read the limit of a standard manifold has not been reached yet so the is little or nothing to be gained performance wise.
But they do look nice!

 

im sure ill never reach the limit of standard anyway but they do look nice especaly the auto specalist ones in chrome..so do u think they only claim to reduse lag to sell them?

 

lol
I think they do flow better and would reduce turbo spool up time if your manifold was restrictive......... but it isnt.

 

Manifolds are primaraly used to alter the charactaristics of how a car produces its power - theres a lot more to it that just flow and restrictions.

The best example I've seen of a successful design and shape was AVA's Tubular manifold for the CVH. Which I initially had for my 1600cvh, it shifted the peak power upto 7200rpm and held onto its power, as in the rolling road chart was level all the way to 7800rpm, the limiter cutting in at over 8000rpm. I've yet to see that replicated!

Of course a manifold in itself is only part of the equasion, engine build & spec along with mapping are also factors to be considered.

 

ava know their onions when it comes to manifold design

i have had of theirs now and they have done exactly what they was designed to do


im very happy with mine now

 

I brought this from Autospecialist at Ł300 its better than standard but it won’t make a massive different’s in performance I don’t think.

 

there stainless mate and very good

 

Have you got a pic of the face of your manifold? where it mates to the head? I'd be interested to see it, cheers

 

so what are the ava ones like compared to jamsports ones or primary designs?
hurry up with answers as im away snowboarding(dont be jealous andy )

 

they look so smart...shame they have sold out

 

It's academic really, as you can't buy an AVA manifold.

 

I tried to buy an AVA inlet fanymold once

 

Lucky man, have a great time! Where are you off to?

The AVA ones arent made any more(they are so labour intensive to make) they are very limited in number and fetch good money IF they become available. The shape of and length of the headers is the main difference.

 

both manifolds work very well

but i woild have an ava one

my latest one came off the bay and it was under Ł40

 

pmsl u seen it too lol
tim

 

What have you seen Tim and Andy R? I'm intrigued!

 

Hey Tim, I havent tbh but know the potential issues associated with poorly designed ones.

 

might be silly question but dont tubalar manifolds move the turbo and new downpipes have to be made ???

 

sounds like a good question

 

Gus's one is pretty special!

 

Yeah, to go over the gearbox, and out the back of the engine, to meet with exhaust.


The Hansen/Jamsport manifolds are lovely, seen a few of them.

 

so there is actually alot of work invoilved and money or can you get them that fit in the same place ?

 

Seriously guys, for under 300bhp, there really is no point, even at that power its not needed. You'll do more harm than good.

 

can they really do damge then so its not advisable just for looks

 

He doesn't mean damage, as in break something.. he means it could negatively affect performance, and your bank balance

 

on a poorly designed one i agree,with proper exhaust and inlet and a matched spec u can see good gains by fittin,andy and wul young both seen good gains usin ava's manifold,not just more power but where peak power was produced and the ability to keep that power at high revs

andys was near as dam same spec as mine,mine made peak power at 6krpm andys made it at 7200rpm and held it till 7800rpm,doesnt seem to shabby to me

 

The standard one is more than fine for almost every application!

Moving to stainless looks very nice but also induces the risk of cracking!

On a turbocharged car equal length headers or primeries as some like to call them are not the bee all and end all! In my opinion. Although at 530bhp (on a zetec) I paid the price through heat transfer on a VERY short number 4, transfering heat into the head and cooking the headgasket.

Equal length are the way to go if you can but I am convinced that its not that important up to say 400bhp. That is not including manifolds that are just shit anyway firing into the collector at stupid restrictive angles.

With the very best of respect it sounds like you are looking to spend for the sake of it (guilty of this myself at times). You would be far better looking else where for the best band for your buck!

 

 

c+b
i was only saying if you could get hold of them

andy
cheap week in bansko.powder heaven
2 1/2 weeks after i get back im off to innsbruck