those intake manifolds with the radiator hose that runs through them. do they increase the heat of the mixture going into the mini alot?

does anyone have any spare ones hanging around?

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Sunday Morning Mini Sprint http://www.youtube.com/watch?v=UtGuzqBQ32Q my "rendezvous"

They're meant to prevent carburetor icing in cold climates. And cold means really cold. Heating a mixture does not make your car go faster otherwise.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

i have one on the mk1 project, it ws on the motor, and it looks kool, so its staying



eye candy lol, its filthy though nice and blingy now though

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-jamie-
1963morris 850
1965 solid side van
1994 rover racecar

well my engine is running to cold and i need some way of warming it up a bit.

yes she is running to cold.

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Sunday Morning Mini Sprint http://www.youtube.com/watch?v=UtGuzqBQ32Q my "rendezvous"

nothing to do with the intake. Try a mixture tuneup, ignition settings and if it is too cold (coolant temperature cold that is) is there a thermostat fitted?

These manifolds are for climates where the pressure drop accross the butterfly is enough to freeze the manifold up with ice.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

their is a marginal increase to be made by heating the intake and increasing it's temperature and mass. Probably no enough to notice in an a series.

if your cars too cold start with your cooling system. make sure it's full of water and the sensors working otherwise change the thermostat

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-doing a Degree in Mechanical Engineering,
and a few conversions:
13B Extend in a 1600
4EFTE in a mini ute (all slowly)

But that's really only due to better atomisation isn't it?

Heated air thins out. Bernoulli's principle.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

A water heated inlet manifold will help prevent carburettor icing. If your car is running cold, trying installing a hotter thermostat - an 84 or 88.

I use one of those water through manifolds - makes no difference in summer (at least not any noticeable difference) but makes a big big difference on those monster frost mornings.

Its imperative that a good thermostat is fitted though, so there is warm water.

Just on thermostats for a moment. Dont buy and fit a cheap thermostat and say "oh well thats that". Most of them are rubbish and many degrees off their stated value. They also seize fairly quickly. Spend a few more dollars and get a good one. Then check it BEFORE you fit it by boiling it and checking the opening closing temperatures with a temperature probe or thermometer.

I've read this post with interest as I'm about to fit an 1'3/4 SU to my warmed over 1275 and was told only to do so on a water heated manifold - I'm guessing by the direction of this thread that's not necessarily true?

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'62 Morris 850 (Marion)
'65 Mini Delux - sleeper 1275/S discs (Ms Plum)
'69 Vanden Plas Princess 1300
'71 Wolseley 1300
'74 Austin 1300 Countryman
'94 XJ6 Sport 3.2
'04 Rover 75 CDTi

I've tried both systems on my car. With water connected to the manifold, the car idles much better on cold winter nights (Brisbane cold so about 10 degrees). There is far less manifold wetting so the idle doesn't start high then drop off after a while at the lights.

With the water connected there is a slight increase in pinging on hot summer days. (Brisbane again so about 30 to 32 and humid)

I have disconnected the water through the manifold because mokes are too cold to drive when it's 10 degrees out so who cares about how well it runs!

FYI my car runs an 87 deg thermostat, 1/75 HIF with bakerlite spacer, MG metro alloy inlet manfold and has a ported head.

Use to have a non-heated manifold on a 1380 - didn't cause any problems until heading home late one extremely cold night.

When I went to back off to exit the freeway after sitting on 70ish mph for 15-20 minutes nothing happened. Lucky the freeway kept going and I was able to pull back on and play with the throtle for a while until it became un-stuck and the car finally slowed from it's 70ish speed.

Most of Australia.

Certainly here in the Central Tablelands of NSW where we are 700 metres ASL and our lowest overnight temp last winter was -16 C.

We repeatedly had to blank off sections of the radiator on the crummydore and the tonner to get the temperature up in the early mornings. The tonner especially as it shares air with the atmosphere and it is no fun driving it cold watching your fingers ice up as you drive. Fortunately it only takes a couple of K's to warm the heater.