pm sent mate

 

Paul, it just seems strange to me that you have the fabrication skills to build a whole manifold but not to construct a simple 2-1 merge collector? If you were to fabricate them in house it would save you a fortune.

 

i probably could build them to be honest but i work 6 days a week and dont have the time as i said lances are top quality items with flared ends and i havent got all the equipment to do things like that at the moment i will carry on buying them from ojz , you got any pics of yours mate

cheers paul

 

ive not got any yet mate,im in the middle of sorting some out,but if you can supplie a few at a good price?? pm me if you can,im also looking@ cvh ones as well

 

Haven't got any pics but i can tell you how to make them. All you need is a band saw or abrasive chop saw. Cut two lengths and then set them up in the saw at say 15 degrees with the cut finishing where you want on the end of the pipe. Sometimes you need to knock up a little cutting jug that you can g clamp the tube in. After you have made the cuts it a simple case of welding them together with your TIG.

 

the 2-1 collectors are the easy ones,its when you go to 4-1 or even 3-1 0r 6-1 it gets harder

 

to zetaboost boy .i stand corrected everyone has there opinions and yes your manifolds look very good and obviously work well if capable of taking 500+bhp but you have to remember some cossies make more than that with standard cast manifolds so isnt definite proof that your manifolds are excellent have you run test of your manifold versus a standard one on the same engine? as for pricing i make my own bends, collectors and flanges so save 100's over what your paying. please dont think i am slating you here as you are obviously skilled. and i am sticking to my guns on primary sizes as ive felt the reduction in lag with bigger ones, as for cracking t304 is prone to it but doesnt mean it will happen, cracking usually occurs once in the engine bay when the heat cant escape properly or when using heat wrap, however usually if they crack once then are re-welded cracking usually doesnt happen again

 

The cracking is caused by two things.

The first one is fatigue. People run these manifolds (worse are over the gearbox) with no support to take the weight of the turbo. The turbo is bouncing up and down on the end of the manifold and eventually the stainless will fatigue and crack.

The second problem is expansion. People make the mistake of constraining long runners so that they cannot expand in the direction they wish. If the runner is constrained it will crack.

Paul, your manifolds do look nice and obviously function well. However i do think you could improve the design of the collector. I know why you/area six have gone for a cone. It is easy to fabricate and easy to get the runners to line up with. The problem with it is it creates a sudden large change in volume. This will cause a pressure drop, turbulance, eddy currents etc that will ultimatly effect flow.

 

WOW

 

hi mate , no offence taken first of all and like you said every one has there own views and opinions thats what makes us all different. my engine is a zetec turbo mate so there is no standard manifold unless you use the focus rs one and thats at its limit at about 270 bhp. as for primary sizes again i think it all depends which application your looking at ie is the turbo right next to the head , or is it over gearbox etc . the over gear design uses 1 1/2 headers to keep good gas speed up , if you put 2" headers that lenght then you would create more lag with the extra volume its got to flow. if your building one close to the head then i would look at going up a size if your using the same turbo etc as the volume of gas in the header is smaller so your gaining with the larger pipe to equal that out again , like on mine its now close to the head so ive used 1 5/8.
ive never said that my manifolds are the best thing going what i will say is that its been dyno tested and is rated at 500+ bhp and thats all i do say as i defo dont want to give false promises and lead people on . the second thing is that my engine was the most powerful zetec turbo engine (now dan arrowsmith , well done mate) on a road going car so i dont think anyone will superseed that unless they have serious money and until that time comes then these manifolds will be adequate.
if you make mandrel bends etc then like i said mate get someones engine and offer to build them a couple of manifolds for cheap and do some testing at let us know how it goes .
good luck
cheers paul

 

yes your right mate but it still did 522bhp with unequal lenght headers and the cone design, but yes flow can be improved thats why we now offer the merge collector option,
as for the cone we do not build them , we buy them as they are spun stainless steel which is very strong and durable
cheers paul

 

no worries mate but sod testing it on someone elses car im gonna do it on my own lol!! ill have to raid the offcuts bin when the gaffer aint looking!

 

Nms has proven that the rst cast manifold can handle 400ggs, but for a replacement dont think u can go wrong getting a zetaboostboy manifold, gus get some pics up of ur exhaust then dont it run a different way?

 

dyno testing isn't going to tell you anything about the durability of the manifold, certainly not 5 hours worth.

 

Does nms do ANYTHING at all to the standard manifolds when using them on their big power cars?? Just seems strange that they don't use anything fancy as money won't be an issue at that level of tune.

 

im sure i have read that they are modded but how and what i dont know


could be wrong thou

 

dont really have any of mine, these dont really show much.........


then the turbo sits right around the back...........

 

Gus are you using an AVA manifold or is it one of similar design

 

yeah its another ava jobbie


works well as you know

 

Nice one

 

they port the exhaust for better flow and also the inlets,theres are some of the most powerful cvhs in the country-and who are we to argue

 

thought it might of been ava jobbie, your engine bay is the cool

 

ok then rick , sunnys zetec turbo , paul johnsons zetec turbo , sids zvh turbo , and every other over the gearbox type that ian has built over the last 10 years without one reported crack or failure , i use the same pipes , same components , and the same company so i dont think we will have any probs and if we do i will be happy to repair any faults. as i know p johnson well and seen him do many track days driving flat of on full boost (30 psi) and easily one of the most aggressive drivers ive ever seen and no reported problems then i think i will stick by what ive said. again ian has developed these products over a 10 year period and have been on the most powerful cars of there kind so i know these are provern products even if you dont !

 

So you don't actually make the manifolds?

When you say we, are you in business with Ian?

 

yes all my manifolds are handbuilt buy me

iam on about where i get my bends etc as iam a customer of ians and a very good friend and over the years hes told me and gave his advice on wheres the best place to buy bits/components etc as i wanted to build my own manifold . no iam not in business with ian as ian is no longer trading , but i would say iam a handy guy and like building things so i over time ive gained some knowledge and experience and like to help friends out , iam a full time electrical control panel engineer/builder so i surpose my field is wiring / fabrication etc thats why i make all ians pectel looms (well used too) . i earn Ł50 from making the looms as i like to help like minded people get parts that little bit cheaper and i can say that they are very well made (if i dont say so myself) which in turn has brought the cost of the harness down by Ł100.

 

Just put my tubular manifold up for sale in the for sale section so il be looking at one of your manifolds when my engine is ready to drop in

 

nice one mate , let us know when you want one but keep an eye out for the new 4-1 merge collector manifold being built over the next month

 

Hi

I need exhaust manifold with t25 flange for rs turbo, standard position.
Anyone knows cheaper than jamsport 700Ł?

 

the jamsport manifold wont put the turbo in the standard position, you need to run a cossie exhaust housing and a custom down pipe.
the only one ive ever saw that did was the AVA one! looked the dogs but was very expensive and they dont do them any more.

 

Turbo position is not exactly problem because i am planning to use Mitsubishi TD04-16 turbocharger with custom downpipe.

 

heres the start of the new 4-1 merge collector equal lenght manifold , just tacked together and when finished i will post some more piccys

 

any chance of pming me were you get your loom parts from as im making a loom to convert my series1 to efi

 

http://www.vehicle-wiring-products.e...homepage.phpiv told u before

 

you mean....
http://www.vehicle-wiring-products.e...e/homepage.php

 

vehicle wiring products mate , new plugs , rubber boots , new pins , overbraid etc





they should look something like this if you take your time
cheers paul

 

did you make the merge collector paul?

 

no mate as i dont have the flaring equipment etc and time to be honest so i buy from one of the best race exhaust builders in the business they are very costly but like a always say you pay for what you get!

 

very nicely built

 

heres a quick update now 3 have been built with the merge collector option

luca's new manifold







and 2 other manifolds ,one for a mk6 with a silver top zetec







and one for a mk3 fiesta zetec turbo

 

wont be long till this gets move as you are trading.