How to fit a Hiff44 to Howley Inlet Manifold on a 1098

Post by **ugabugchugabug** » Thu Jun 28, 2007 11:02 pm

Hi I wonder if there are people who have fitted a Hif44 carb to a howley manifold on a 1098 engine.

At the moment I have a Hif44 carb but I know I need a spacer and some sort of brackets or bits of bent metal which certain wires go through, the carb is new. I know I will also need some gaskits.

What I am looking for is advice on what Air filter, and about the missing bits for fitting it to my howley inlet. Also best pipes to fit and any pitfalls to avoid.

Many thanks in advance

Antony

Post by **Peetee** » Fri Jun 29, 2007 6:30 am

Unless you are fitting a larger valve head I really wouldn't bother. The main power restriction on a 1098 is the flow area around the valves. It's a bit like trying to fill a paddling pool quicker with water from a larger hosepipe but forgetting to fit a larger nozzle too.

Post by **bmcecosse** » Fri Jun 29, 2007 7:43 am

The Howley manifold will be great - but a 44 is a bit too large for a standard engine - 38 would be ideal. You would need to look at the exploded pictures on MOSS (mosseurope.co.uk) or some of the other online parts suppliers to see what parts are missing - and what parts you require. I can send you pics of my installation later if that helps - but all my bits and bobs came with the carb - and I have never managed to get a filter to work without destroying the performance, but I dare say a K&N of the right size will be fine.

Post by **ugabugchugabug** » Fri Jun 29, 2007 4:50 pm

Many thanks bmcecosse, that would be very useful, in the meantime I will look at the mosseurope site. Ther reason I got a hif44 is that at the moment hif38s are a little thin on the ground (I did find some for over £250 but I got my hif44 for £40 and it is new! bargin! So I am aware its a bit big but my 1098 has been tweaked a little, it has been gas flowed and has mini pistons and valves which up the compression I am told. I am not a grease monkey myself I tend to make the tea and bacon butties for a friend or two.

Post by **Peetee** » Sat Jun 30, 2007 7:21 am

I am not a grease monkey myself I tend to make the tea and bacon butties for a friend or two.

Better get yourself round my house then!
Seriously though I have a few air filters/carb trumpets/spacers etc that might do the job for you. Perhaps we can have a SADMOG meet round at my local again?

Post by **bmcecosse** » Sat Jun 30, 2007 3:34 pm

Pretty sure wanderinstar uses a Princess air filter - pm him to check.

Post by **Matt** » Sat Jun 30, 2007 4:38 pm

Whats the problem with a HS4 rather than a HIF38, unless you are really going for it around corners you wont notice a difference! They are also dirt cheap and on a lot of minis!!

Post by **bmcecosse** » Sat Jun 30, 2007 4:43 pm

HS4 is fine - but HIF 38 at the right price is better!

Post by **ugabugchugabug** » Sun Jul 01, 2007 12:41 am

The reason for change alltogether is I was given a stainless exhaust, so with my engine already tweaked I decided to get a howley inlet, was told it would help my engine breath better. The HS4 wont fit on a Howley as the holes are in the wrong place and if you fitted it to the existing holes it would put the carb at an angle, I was told that they don't like working at angles. And so I began looking for a hif38 but there were more hif44 about hence getting one untill I find a hif38. I think I have a HS4 at the moment. But like I said in a previous post I do the tea, the bacon butties and look impressed....oh and I love driving my Moggy!

Post by **Packedup** » Sun Jul 01, 2007 3:35 am

Ummm....

The HS4 and HIF38 (and 44) are interchangable between manifolds. In the case of an HS4 on a 4 stud HIF inlet, it simply uses opposing diagonal studs, just as when fitting a HIF to an HS4 inlet it can only use, but fits perfectly on, the diagonal studs.

Are you sure you're not thinking of what might happen if you tried to fit an HS2 to an HS4 2 stud, or HIF 4 stud inlet?

Post by **Kevin** » Sun Jul 01, 2007 9:19 am

Hi I assume that the Howly manifold is suitable for the HIF44 as they come in 2 sizes 1 1/2" (38mm) or 1 3/4" (44mm) just measure the port opening, because if its the smaller of the 2 you will have to open up the opening for a larger carb as it will cause all sorts of flow problems but the other way round is not so much of an issue.
Another housing that can be used for the HIF44 is from the MG metro and this will take a K&N filter element, I think there is also a mini one that may fit definately for the HIF38 but not sure about the HIF44.

Post by **Peetee** » Sun Jul 01, 2007 10:01 am

I have a water heated inlet (that may be a Howley) that turns upward at such an angle that the earlier (HS4 type) carbs will not run because the float chamber cannot be turned sufficiently to allow it to be level.

Post by **wanderinstar** » Sun Jul 01, 2007 11:01 am

Yes BMC is right I do use a 1700 Princess filter. I have had to cut a bit of the outer casing away to clear wiper motor. But I do have a 3/4" LPG adapter between filter and carb. So without that you should clear OK.

Post by **bmcecosse** » Sun Jul 01, 2007 11:23 am

The older HS4 must sit with the float chamber vertical - and that (as above) is why it won't easily go on the Howley inlet. Don't worry - the HIF 44 will be fine - that's the beauty of the SU carb with the variable throat inlet system - it self adjusts to the airflow being used by the engine - in your case it may never open more than 2/3 wide - but that's ok - it's still a much better carb than the older ones. I will try to get some pics this afternoon if it stays dry!

Post by **Kevin** » Wed Jul 18, 2007 12:30 am

Antony for a picture of an HIF carb and matching filter, from a mini I think rather than a metro have a look at
http://cgi.ebay.co.uk/MORRIS-MINOR-TRAV ... dZViewItem

Post by **ugabugchugabug** » Wed Jul 18, 2007 7:01 pm

Hi all, many thanks for all the support, we (well XWL61 did) put a HS4 on the Howeley but it runs very badly; great loss of power. So Andy (XWL61) is tinkering, then we will have a go with the Hiff44, being totaly non techy I am just feeding Andy with this info. He has a new thread on fitting a HS4 going as well.

Post by **ugabugchugabug** » Wed Jul 18, 2007 7:42 pm

My three branch SS Exhaust doesnt clear the suspension thingy! Unless my engine can be jacked up

then my howley and the SS exhaust are redundant and I need to get a new exhaust and fit (ask XWL61 nicely)the old setup to a new exhaust.

Post by **bmcecosse** » Wed Jul 18, 2007 10:04 pm

You obviously need to sort out the exhaust first before you worry about the carb - is it intended for a Minor - or is it really for a Midget/Marina/Mini ?? If the car runs poorly with a bigger carb - then it's not set up correctly.

Post by **ugabugchugabug** » Wed Jul 18, 2007 10:38 pm

Hi Bmcecosse, in the interim were getting a new exhaust and putting my HS2 back on; that setup worked well even if the engine was a bit strangled. And between XWL61 and I we have enough cars kicking about to need a exhaust sometime, what were going to do with the big bore exhaust is see if we can get a spacer made to fit over the same area as the long gaskit which goes along the whole inlet and exhaust manifold. 1/4" will make the clearance for the suspension. Then back to tinkering with the carbs, I think we will have a go with your idea of the HIF44 but have another go with needles etc and the HS4.

Post by **bmcecosse** » Wed Jul 18, 2007 11:14 pm

Hmm - is it not easier to just modify the exhaust manifold ever so slightly ? May also just be that the engine is sitting a bit low on that side - perished mounting ?