V8 boxer manifold

[V8MoneyPit]

Result!

I spoke to the company that was involved in the original design of the 4x SU manifold last week with regard to advice in setting them up. When I rang them back, the boss wanted to speak to me  :shock: He is thinking of redeveloping the manifold, but the original drawings no longer exist. If I would loan him my car, he will take them off and take measurements to draw them up. Then he will bolt it all back together and tune the carbs for free  \:D/

It seems one of the carbs has to be set completely differently to the others because it feeds cylinder 5 and 7 sequentially, unlike any of the others. It's just a quirk of the firing order.

So, I have decided to go for a performance camshaft while he's in there!! And a set of brand new carbs at a hugely discounted price  :D All I pay for are the parts and the extra labour to swap the cam.

It certainly paid to ring them.

So, dumped the 110 with them this morning.

[ian_s]

now thats a result!

bizarre about the firing order tho.

[hingmy]

So a return of the boxer. Hmmmmmmm
Any idea of timescale?

And refresh my memory, which SU's work best on it?

Oh and good work chap.

[V8MoneyPit]

It was designed around the HIF6 or HIF44. The 44 just being the later version of the 6.

I am hoping to stay in touch with developments. But I don't know much at the moment.

[mark.yellow.series.3]

nice one let us know how it performs when you get it back

[hingmy]

well possibly i better start carving a spare pair of 6s, soyunds more fun than the efi route i'm currently thinking of

[paul_humphreys]

Nice one, I have seen that setup working, when set right they do work well :D

Paul

[hingmy]

out of interest, what do they reccomend needling the carbs to when running in sets of 4?

[V8MoneyPit]

out of interest, what do they reccomend needling the carbs to when running in sets of 4?

That depends on the engine. You can have 2 seemingly identical engines, but subtle differences in ports, etc can require different needles.

Different CR's, camshaft, heads, filters, etc all make a huge difference to the needle requirement.

The only way to accurately set the boxer is with an exhaust gas sampling point on 4 of the exhaust manifold pipes (one for each carb). Then the mixtures can be set as though it is 4 separate 2 cylinder engines. This is what they are going to do with mine. Nice and easy on steel Janspeed manifolds. They weld threaded bosses on. Not so easy on cast iron ones unless the material is thick enough to drill and tap.

They are going to give me a copy of their old hand drawn 'instructions' before I take the 110 away. So if you do decide to follow this route, I can fax you the details. Alternatively, you could take a holiday in Norfolk and get them to do it for you!

One major disadvantage is if you want a snorkel..... plumbing that in would be a nightmare  :lol:

[V8MoneyPit]

well possibly i better start carving a spare pair of 6s, soyunds more fun than the efi route i'm currently thinking of

They now have the dimensions, photo's, etc of the manifolds. But speaking to him today, he is not sure if he will persue the manufacture of them. He seems to think it would too expensive to have them made and put them in direct competition to injection systems. What they might do is make proper drawings and sell them for people to have them made themselves.

Should get the beastie back on Thursday  :D

[mark.yellow.series.3]

that looks awsome, and thirsty :lol:

[V8MoneyPit]

So....

Went to pick it up today (second time!) and it sounded fantastic! The boss at the garage decided he wanted a blast up the road...... I can honestly say I have never been that fast in a Land Rover before  :shock:  :lol:

As we drove back into the forecourt he said he could hear a small ticking. He'd get the mechanic to go round checking manifold bolts, etc.

When I opened the bonnet there was water everywhere  :( After much poking and proding, we restarted it and it's gone and blown a head gasket  

So I came away without it ..... again! So the question is:
Do I go for the standard heads again or have a pair of stage 2 heads bolted on???  :twisted:

[Xtremeteam]

STAGE 2

[mmgemini]

I'm no longer a petrol man BUT
You must go for the stage two heads.

It makes my eyes water thinking about it.

[V8MoneyPit]

So, Christmas is coming up.....

are you two going to chuck in £300 each and buy me a pair???  :roll:  :lol:

Well, worth a try!

Edit:
Sorry guys, I'm going to dissapoint you! Just spoken to the engine builder and he seems to think the modded heads will be wasted on a vehicle that really needs low end torque rather than mid range and top end power. So he has just saved me £200. I am going for some standard reconditioned heads instead. Of course, these will be an improvement to what's on at the moment anyway.

It has just been rolled into the workshop this morning for the work to start. Again  :roll: So frustrating in that they had it all down to the heads when they were doing the cam change. A few more bolts and they would be off. But now they have to do the whole thing again   Ho Hum!

[littlepow]

 No nice V8 noise.

[hingmy]

bad luck mate. Have the exhaust ports worked over a bit while people are in there. Trust me you know it makes sense.

[V8MoneyPit]

 No nice V8 noise.

It was glorious..... for about 10 minutes ...... then a little 'phut, phut, phut' from under the bonnet. But all is not lost yet.... I'm hoping it will be ready on Monday or Tuesday  :D

Now to sort out the Freelander lift (50mm) and BFG AT's (215/75x15's)  :D