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| Exhaust sytems https://ausmini.com/forums/viewtopic.php?f=2&t=101990 |
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| Author: | carter [ Sun Aug 20, 2023 2:57 pm ] |
| Post subject: | Exhaust sytems |
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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| Author: | timmy201 [ Sun Aug 20, 2023 5:14 pm ] |
| Post subject: | Re: Exhaust sytems |
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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| Author: | carter [ Sun Aug 20, 2023 5:39 pm ] |
| Post subject: | Re: Exhaust sytems |
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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| Author: | TK [ Sun Aug 20, 2023 5:47 pm ] |
| Post subject: | Re: Exhaust sytems |
I did a 998 screamer many years ago. HS6 SU, LCB medium bore and a warm cam. Went very well. |
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| Author: | drmini in aust [ Mon Aug 21, 2023 8:19 am ] |
| Post subject: | Re: Exhaust sytems |
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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| Author: | timmy201 [ Mon Aug 21, 2023 7:46 pm ] |
| Post subject: | Re: Exhaust sytems |
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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| Author: | MiniPete [ Tue Aug 22, 2023 10:22 pm ] |
| Post subject: | Re: Exhaust sytems |
The Vizard book has plenty of good info on systems and what they are best suited for. |
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