Hi all

I'm in the last stages of rebuilding my engine and have come to the decision making time on what exhaust system to fit.

When I took delivery of my Mini (68 Mini-Matic), there was pretty much no remains of the old exahust system except for about 20cms of the tail pipe.

My current setup is a single carb with the standard one piece cast inlet / exhaust manifold.

I havent had the opportunity to examine other minis to see how they are setup so I am sort of new to this. Not to sound too stupid, but is there a way of using the RC40 standard setup with the single carb. Wasnt sure about the 3 into 1 extractors when dealing with the inlet manifolds.

Any help would be appreciated.

Thanks

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1968 Mini-Matic ex998 Now 1098

Most 3 into 1 extractors (but not Maniflow) fit with a cut down standard manifold. You just cut the exhaust part off and toss it.
Otherwise, buy a Minispares alloy inlet manifold. About $100 here, less in UK.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

The minispares inlet is probably the way to go - you get the option of heating it as well. That should reduce fuel cosumption, since the fuel won't condensate on the sides of the manifold.

Unless you're running a performance engine, I wouldn't reccomend an LCB for your exhaust manifold. They're hard to install, and if you have a small block like me, they sit very low to the ground. Use a cooper freeflow manifold.

If you're running a 1275 or bigger, I don't know what to suggest, just don't use an LCB on a 998!

my ideal exhaust would be

minispares inlet manifold
3to1 extractors
inch and 3/4 pipe leading to a
twin box rc-40 setup.

ditto - I have an 1.75" pipe and twin box RC40 on my cooper

I have a cut intake manifold but i ported it out to suit a 1 3/4 carby and matched it to the head, they can be opened up a lot.
My exhaust is LCB's (cut open and modified for flow then welded back) then 2" down to a big baffled muffler, i like a softer deep note.

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Dean Hutton's first car was a Mini.

Thanks all. Been a great help!

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1968 Mini-Matic ex998 Now 1098

My ideal exhaust would not include anything made in England. You can get better stuff made locally from better steel.

i've just spent time with my exhaust man who is doing mine 3 into 1 extractors into 2'' to the rear axle then split into 2 resonators(similar looking to another mini on here QLD 11 QIK) hope he doesnt mind but it looks awesome from the rear

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Darren
00 triton d/cab
55 chev(oversize moneybox)
1963 850 (roundie)
77 clubby
95 zxr 750 + toys!!