HRE's take on the 7Port (not another)
Turbo Mini Forums

Hi All,

Ok My hand has been forced on this a little so this news is going out to you a little bit sooner than I expected because of the competitive nature of the market we are in. It’s no great secret that a performance head we are developing is a modified 7 port version, produced in its raw form by the well established, Pierce Manifolds Company in California. Hickey Race Engineering are the Irish Distributor of these products, which are available for nearly a year, but now about to hit the market from a broad range of suppliers. As is customary with our innovative products, we refrain from releasing details until we are satisfied that the products have been thoroughly tested and deliver to the standards we say. We are working with one of these heads fitted to a 1400cc engine and commenced testing on the original head some time ago. We modified the original to enhance its flow characteristics and even as you read this, the engine is now undergoing some intensive dyno testing, so watch this space. We believe we have the best version of this head currently available, but we’ll let the figures do the talking for us.

we’re catering for a range of discerning owners by developing a FIS version and a Fast Road/Race version.

all of these heads will be available at affordable, competitive prices. We will sell the raw casting if you desire, but the feedback we received suggests you would rather have the refined finished product, in built up form, with the option of all the necessary components to customise to your requirements.

I am also not going to sit on the fence on the pricing I have got these heads in bulk form the states and priced them at what I believe to be a realistic pricing,

Basic Pricing:

7 Port Bare Casting, including studs, nuts, washers, spark plugs, inlet manifold gaskets, spacer plates for exhaust flanges, bronze valve guides24cc chambers. See Picture

Price: £980 + VAT
shipping to the UK in most cases will work out to be £40 to the UK



Full built 7 Port Head, with studs, nuts, washers, spark plugs, inlet manifold gaskets, spacer plates for exhaust flanges, valve springs, bronze valve guides, top caps, valve stem oil seals and valves (33.5mmin, 29.5mm ex standard) 24cc chambers.

Price: £1200 + VAT Pic to follow


Full built 7 Port Head, with studs, nuts, washers, spark plugs, inlet manifold gaskets, spacer plates for exhaust flanges, valve springs, bronze valve guides, top caps, valve stem oil seals and valves (33.5mmin, 29.5mm ex standard) and 2 Weber 40 Carburettors with linkages and trumpets. These Carburettors are also completely striped down and re-jetted and re-choked to suite the Intricacies of the 7 port.

Price: £1800 + VAT


Forced Induction Special: Full built 7 Port Head, with studs, nuts, washers, spark plugs, inlet manifold gaskets, spacer plates for exhaust flanges, valve springs, bronze valve guides, top caps, valve stem oil seals and valves (34mm in, 30mm ex ). 28 cc combustion chambers.

Price: £1300 + VAT

Fast Road spec to follow; Currently under development

Full Race Specification to follow; also currently under development.

We have also just finished a set of drawings for a custom Plenum for use with fuel injection and FI the proto type should be arriving early next month for testing.

I am afraid I don’t have any fancy Pictures of Ti top caps and fancy roller rockers what I do have is pictures of the bits the really matter:
Outer Inlet port


Inlet port inner


Combustion chamber


Here is a Picture of the worked inlet port on our Fast road version:

Edited by PaulH on 23rd Jan, 2010.

im getting spoilt for choice here :)

very nice pics btw

Yes i moved to the darkside

Instagram @jdm_brett

I really cant wait to see how all these perform

I seriously doubt it!

neither can i, the casting of this looks too similar to the med one though, is there something more to that?

Yes i moved to the darkside

Instagram @jdm_brett

Going to be good to see price differences vs performance.

Be good to see them all back to back tested on the same engine, same dyno.

In boost we trust

The reason the MED one is similar is because that is a pierce head aswell. It have to be when they are this similar

Yes i moved to the darkside

Instagram @jdm_brett

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Brett this is very defently cast in the same place as the med one by Pierce Manifolds as I siad earler,
if anyone wants more Pic I can arange that
regards
Paul

Haha, just what I thought :) Doesn't make the head bad. I'm realy interested in how it performs - the price is hot! Maybe I dump the K head...?

[X] nail here for new monitor

Jesus Paul, do you ever stop with new developments .... looks class mate ill have to call over and see one in the flesh?
Markie

2010 the year of the 7 port?

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

On 23rd Jan, 2010 Asphalt said:
Maybe I dump the K head...?

Edited by Sprocket on 23rd Jan, 2010.

Dunno Sprox, the most powerful car engines ever built are 2 valves per cylinder driven by pushrods and chains with dizzys. If youre after power 7 port has to be the one to go for - after 5 port that is.

Paul

EDIT Just noticed aswell with this casting, looking at the chambers you deffo need to index the plugs correctly

Edited by paul wiginton on 23rd Jan, 2010.

I seriously doubt it!

and lots of nitromethane.

Dont matter, its still the layout that does it

I seriously doubt it!

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Very good point Carl, but if multi valve was faster surely there would be atleast one out there.

I seriously doubt it!

Avtually, thinking about it just now whilst on the throne, pulling off a pair of 2 valve pushrod heads involves resetting tappet clearances on refitting.
16v would be easier as all you do is line up the timing marks and slip the belt back on. Granted theres more valves to lap in, but theyre not done after every pass.
So 2 valve is more complicated between passes, whats the reason they go to this effort? It must be because its better

Paul

I seriously doubt it!

its the fuel .nitro burns between the ex valves on 4v ally heads . they tried a steel insert ,and it worked ,but the top speeds were too high so they shelved it i think .
re specific bhp per litre on anything not oxygenated ,i think it still goes to the f1 bmw engine at 1330 bhp from 1500 cc .

Edited by robert on 23rd Jan, 2010.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

On 23rd Jan, 2010 Sprocket said:

Don't be daft get rid of the clatter of the timing chain and rockers and take benefit of a full compliment of inlet and exhaust ports

Nice as this head is

[X] nail here for new monitor

Are Nice find Paul, i new there was another onption then the MED one

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Edited by apbellamy on 23rd Jan, 2010.