Dave A
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Registered: 10th Dec 03
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a few of you might remember that i was looking into manufacturing some inlet manifolds a little while back
heres the post:
http://www.corsasport.co.uk/board/viewthread.php?tid=184369
anyway, that little project didnt get off the ground due to the costs involved, so it was back to the drawing board for a new design. and its done! im just posting up these very rough pics at the moment to gague interest and get some feedback on the design.
front:
back:
the manifold itself will come in various different finishes/colours, and will be around £350 all in including a full fitting kit and step by step photo instructions. this design has been flow tested and has performed very well compared to the mantzel powerbox.
please leave your comments and questions,
thanks, Dave
[Edited on 28-05-2005 by corsa808]
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Skinner
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Registered: 14th Jul 03
Location: aberdeen drives:mk4 irmscher astra on 18's
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sounds good cause t#most the others arnt made any more if a rolling road proved it worked i would want 1
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Dave A
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ps. the final produced items will be a lot smoother looking than these examples, and the base plate will be machined to be the same shape as the lower half of the manifold, rather than square.
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Dave A
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ive already got a few poeple interested in being 'guinea pigs' so before they go on full sale, i will be posting before and after reports, RR graphs and some reviews etc...
[Edited on 28-05-2005 by corsa808]
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Dave A
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quote:
Originally posted by richard_syko
That Soliworks mate?
soliworks?
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Dave A
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Registered: 10th Dec 03
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its a secret
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Dave A
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GET YOUR COMMENTS ON HOW IT LOOKS UP
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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looks good, end of the day if its a performance inlet, the main think is it performs well, you can make a cover to go round the outside if its not as "pretty" as you originally antisipated! looks good tho mate, top work for doing it
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Adam-D
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Registered: 11th May 02
Location: Cheshire
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i want one
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jr
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Registered: 20th May 02
Location: Kent
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quote:
Originally posted by broster
looks good, end of the day if its a performance inlet, the main think is it performs well, you can make a cover to go round the outside if its not as "pretty" as you originally antisipated! looks good tho mate, top work for doing it
agreed with broster
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Dave A
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will look 'pretty' when its finished
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jamesvalver
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Registered: 21st Feb 03
Location: Bury St Edmunds, Suffolk
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if its as gd wen made as it looks n sounds atm then ill take 4 4 me gsi providin it'll fit lol
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dave17
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Registered: 3rd Sep 02
Location: Greater London
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il be a test pig.
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IlfordCorsa16V
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Registered: 2nd Aug 04
Location: Ilford, Greater London
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What are the performance like when you have a performance inlet manifold on the engine. (x16xe)
Looks good mate
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MoNkEy MaGiC
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Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
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looking wicked mate
if your saying it performs better than mantzel then thats excellent!!
The GSi C16xe needs a new "lower inlet manifold" when putting on a new upper inlet because of the crap/noisey/old design one... will you be taking this into account and also do the Lower inlet aswell in the £350???
when will production/sales start??
Deffintley interested, keep us informed 
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Dragon_R34
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Registered: 18th Oct 04
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yea certainly looks promising!  and more then interested, keep us updated on the RR n figures
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Dave A
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quote:
Originally posted by MoNkEy MaGiC
The GSi C16xe needs a new "lower inlet manifold" when putting on a new upper inlet because of the crap/noisey/old design one... will you be taking this into account and also do the Lower inlet aswell in the £350???
i will be doing some for the c16xe as well, but will be more like £425 as ill need to sort out lower inlets as well. i already have a few ready for c16xe kits, but will be special order only.
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MoNkEy MaGiC
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Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
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so £425 for the gsi c16xe version!
well... its still cheaper than mantzel used to be!
1) but is that £425 with delivery + sprayed in colour of our choice??
2) is that pic the final production version??
3) will it be nice and tidy like the "dibilas" one or like the "mantzel" with pipes going and coming everywere??
4) what about gaurantee??
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Davido
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Registered: 18th Aug 03
Location: Reading,Berks
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id defo be interesetd for sure
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
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Big problem with your Design mate
was looking into this for my LET
all below taken from http://www.max-boost.co.uk
The page with all the Details on...........
But that doesn't make it any good - cylinder #4 will not get the same airflow as #1. If the airflow is different among the cylinders, the fuelling will be all over the place, won't it? So the ignition needs will be different for each cylinder. But even if these are all smoothed out (and no cylinder detonates), the different airflow will result in each cylinder producing different amounts of power, so the delicate balance of the 4-cylinder design goes out of the window: some cylinders will be working against each other.
This manifold suffers from the same 'unequal feed' syndrome. The injectors will supply the same amount of fuel in each cylinder, but even a variance of 10%
Below is a high-flow inlet manifold for the Skyline GTS (six cylinder, single turbo). It shows how it should be done. Note the shape of the 'rail', the aim is to have identical flow in the runners,
[Edited on 29-05-2005 by BeArDy]
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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beardy, the manzel is a uniform shape, as is the velos (both torque tube and the pulse)
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
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may work then
just stating my views 
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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well pointed out beardy. this was taken into consideration with the design. a few different ways of getting around this were thought up, but there was no 'real' benefits of making a tapered intake plenum (as seen in the skyline one) the only way to get an even quantity of air to every cylinder is to use direct port throttles (throttle bodies).
when the design was tested, the airflow to cylinder 3&4 was considerably better than other designs, for example the manzel powerbox that i have fitted was tested and the 'new' inlet performed a lot better.
when taking airflow into consideration on 4 cylinder smallblock engines (1.4/1.6) you will also need to take cylinder vaccum/compression into account befor assuming that a certain cylinder wont have enough air.
also, if you look at the skyline engine it has 6 cylindres. this is why the inlet design is tapered. now look at the pic of the skyline inlet again and just look at the first 4 branches. not really tapered until you get past the first 4 is it?
thanks for the comments though mate, gives me a chance to show how much background work/ testing has gone into this project.
[Edited on 29-05-2005 by corsa808]
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Dave A
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quote:
Originally posted by broster
beardy, the manzel is a uniform shape, as is the velos (both torque tube and the pulse)
as well as the dbillas inlet
[Edited on 29-05-2005 by corsa808]
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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quote:
Originally posted by corsa808
quote:
Originally posted by broster
beardy, the manzel is a uniform shape, as is the velos (both torque tube and the pulse)
as well as the dbillas inlet
[Edited on 29-05-2005 by corsa808]
however the lexmaul isnt.....
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