93 replies to this topic

[lrostoke]

You sure the "shiney" manifold you have won't fit your carb, the minispares one says suitable for HS4 , HIF38 / HIF44.

With a drilled airbox and K&N filter I'd go either AAA or AAM

[m1tch]

You sure the "shiney" manifold you have won't fit your carb, the minispares one says suitable for HS4 , HIF38 / HIF44.

With a drilled airbox and K&N filter I'd go either AAA or AAM

Yeah it won't fit, its got a large square hole and not a round and oval hole lol its also got a screwthreaded hole in the intake that mine doesn't have.

This is what I have got:

http://www.minisport...fo_GMC3000.html

Im unsure how I would be able to fit this:



onto this:

https://www.plminish...ges/FZX3013.jpg

Is there a conversion kit or a spacer or an adaptor or something?

[lrostoke]

Read the description for the minisport manifold

Inlet Manifold - Alloy - Water Heated - HS4/HIF44


The HS4 / HIF44 is a bit of a clue it will fit both, you have an HS4

[lrostoke]

Some old bits sitting in my garage, but show how it fits.

Manifold with spacer next to it, the spacer is standard on your original set up or should be.
The studs on your existing manifold unscrew, and you screw them in as shown below to your new manifold








On the last picture should be a plate between the spacer and carb that holds the airfilter and throttle and choke cable

Edited by lrostoke, 03 July 2009 - 06:56 PM.

[m1tch]

AWESOME I will try that tomorrow lol woooo how would I blank off the hole though? is that a vac take off? where did you get yours from? D. P. E.?

Edited by m1tch, 03 July 2009 - 07:23 PM.

[lrostoke]

We brought a 2nd hand engine last year, that manifold came with it, but it didn't have the vacuum take off port for servo brakes, so we swapped it for a MG Metro manifold (supposed to be one of the best)

I've no idea what DPE stands for, somebody probably will

aahh right I take it you have non servo brakes, well if your manifold as the servo port, it needs blocking with a grubscrew.

http://www.minispare...ty=pb&pid=37012

Edited by lrostoke, 03 July 2009 - 07:26 PM.

[m1tch]

We brought a 2nd hand engine last year, that manifold came with it, but it didn't have the vacuum take off port for servo brakes, so we swapped it for a MG Metro manifold (supposed to be one of the best)

I've no idea what DPE stands for, somebody probably will

aahh right I take it you have non servo brakes, well if your manifold as the servo port, it needs blocking with a grubscrew.

http://www.minispare...ty=pb&pid=37012

I think I found that they did a CFM test, the MG metro manifold came 2nd to the flow of the minisports one, but I guess its better than the OEM one, even though the OEM one is cast iron so does absorb heat, with is good for fuel atomisation (to a point) Just means I need to get that grub screw and an AAA needle should be back on the road in no time lol

by the way...it doesn't fit!....



Oh wait...wrong carb

[lrostoke]

Oh and before you ask the pipe running through the casting is for heating the manfold, some people connect them others don't. I haven't personally.

[m1tch]

Oh and before you ask the pipe running through the casting is for heating the manfold, some people connect them others don't. I haven't personally.

Im guessing is the same reason as having a hot air feed into the air filter I won't be connecting it up, I don't have a hot water feed that is long enough, unlike the 'newer' classic minis with the plastic heater valve with hot water and air lines going all over the engine bay lol

I will try and take a photo of the cylnder head when the inlet manifold is off, its quite tight back there, but I might be able to show the porting that has been done.

[m1tch]

Is a swing needle the same as the spring needle?

[lrostoke]

http://www.minispare...mp;title=NEEDLE AAM STAGE 1 (AAM)H...

http://www.minispare...mp;title=NEEDLE AAA SWINGING TYPE

[m1tch]

All ordered lol it will be like Christmas when it arrives lol

[m1tch]

Ok, I have now fitted a AAA needle in there, it runs ok, still bogs down a bit, and really badly bogged down/almost stalled up a steep hill (doing about 5 mph, had to put my hazards on)

I am still running on the original inlet manifold, I have a minisport manifold to fit, how much difference would it make in fitting that? Should I go out and buy an AAU needle as well?

When I pull the choke out it goes VERY rich and stalls if I hold it all the way out

Also, after the hill I pulled the choke, then put it back in again and I got all the power back and it became drivable again should I get an AAU needle as well?

[lrostoke]

I'd fit the manifold first, adjust your mixture to about 2.5 - 3% CO , and see how you go from there.

You did reset the mixture after fitting the new needle ??

Edited by lrostoke, 07 July 2009 - 12:13 PM.

[jaydee]

Fit the alloy inlet and try leaning mixture correctly.
I suppose your spark plug are black. See if they get brown, that means you're running approximately right. If it doesnt work, get hold of an AAU needle.
Again, if engine keeps stalling and strugglin, turn off engine, remove dashpot and piston and have a look around the jet if its full of fuel spread all round, if so you probably having issues with the float needle valve, which maybe stuck, clogged or simply needs adjusting.