What sort of exhaust system and extractors are people using foraximum power on a small bore with head work and a mild cam? Also what carby are people using? A weber twins etc etc

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1964 smooth roof panel van
1967 Mk 1 X-Police cooper s
1970 mini k
1975 leyland

I’m using a Maniflow Freeflow manifold and twin box RC40. I haven’t tried any other combinations

For the carb I’ve tried twin HS2 and Dellorto DHLA40. My experience is the Dellorto makes more power, I’ve been using a Warneford/Redline manifold and Ramflo filter and you can squeeze it in without bulkhead modifications

Engine is an 1100 bored 080 over, RE266SS cam, GR big valve 202 head

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And how does that go compared to other size motors/minis. I'm used to a 1275 been quite a long time since I drove a small bore. Trying to give my little brother a small sense of what to expect when his is registered.

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1964 smooth roof panel van
1967 Mk 1 X-Police cooper s
1970 mini k
1975 leyland

I did a 998 screamer many years ago. HS6 SU, LCB medium bore and a warm cam. Went very well.

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The bitterness of poor quality (or Crappy Workmanship) remains LONG AFTER the Sweet Taste of Low Price is forgotten.

I did an 1108cc 998 a few years ago with a Perry Freeflow manifold and RC40 exhaust. 40 Dellorto and 34 chokes. 266ss cam. 202 head with Cooper 998 valves. It's still going hard in mate Joe's van.

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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.

Mine goes really well. It’s grunty down low and goes up hills fine. I have a limiter set at 6000rpm so it doesn’t have the top end rpm of other engines

Compared to some 1275 engines I’ve driven, mine seems a bit stronger down low but doesn’t have the top end pull

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The Vizard book has plenty of good info on systems and what they are best suited for.

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Pete...
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1968 Deluxe 1275
1969 Deluxe 'Scruby' 998 Looking for a roof skin...