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getting close ;D 5k rpm is about 87-92 on the speedo. I've never intentionally taken it beyond 5250rpm. had an indicated 96mph once  (private flight path of course). If it has a 4.22:1 diff & still has the original type 4 speed 'box, then I think something is wrong with one of your instruments, as the gearing is 16.2mph per 1000 rpm, so 5000 rpm is 81mph. However, I found that the van I had as my first car would happily run off the top of the speedo on the flat, & that was with a lower diff....... Having (twice  ) lunched the bottom end doing that, I fitted a tacho & oil / water dual guage to keep a better eye on it. I also asked my then boss (a mechanical engineer, race engine designer & builder etc) what the safe redline was for a standard 1098 - his answer was that it shouldn't be taken beyond 5k & I must have been running mine at over 5.5k.... no idea what diff its got, I haven't changed it/looked at it since I bought the car! speedo has been changed since the 96 run, I think it was faulty but it does give me bragging rights ;D good job I didn't have a tacho in there at the time. 80-85 is true as I have been clocked by jonnysierra in bob the saph. 5500rpm is the absolute limit for stock 1098 pistons because this is when the piston skirt falls off. |
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madmart
Part of things
love is: valvebounce in top gear
Posts: 559
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the type 9 sierra box conversion on a 1275 a series is good because you still get good around town driveability and good motorway crusing, upping the final drive can make feel like your pulling away in second  |
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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Whats involved in the type 9 box conversion??
Are the conversion parts readily available?
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There's a couple of places doing type-9 conmversions for the Minor. Try www.jlhmorrisminors.co.uk and www.morrisminor.co.uk. I know trhe last one even do an glassfibre trans tunnel (it's a bolt-in panel on the Minor) especially for the Minor. Or you could source bits from one of the Spridget specialists if the bellhousing etc. works out cheaper. |
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1953 Minor (Long term project)
PT Cruiser
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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Cool thanks for the information
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if the type 9 conversion is anything like it was on the midget then its a walk in the park - i put a thread up about it ages ago when we did it on my mates
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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Will do a search and get some info abou the conversion.
Would a TR7 engine and box go in??? (Inspired by marina nut lol)
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If it does fit, I'd say go the whole hog and fit a Dolly Sprint motor.
The Dolly back axle's about the right width for a Minor as well.........
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1953 Minor (Long term project)
PT Cruiser
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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OOOH That souns fun! Last night I was thinking about the engine and I thought a 2.0 16v out of a rover 220/420/620/820. 140 bhp. Cheapish engines, and apparently they attatch straight to a rover p6 2000 gearbox  . Then after a while there's the option to put a turbo engine in ;D |
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Those T Series motors bolt up to the SD1 5-speed (LT77?) box if you use a Sherpa Bellhousing.
I haven't measured one up, but seeing as it's based on the O Series block, and the O series replaced the B Series, it can't be much bigger than a B Series which does fit in a Minor.
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1953 Minor (Long term project)
PT Cruiser
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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OOH Moggyman your very knowledgable! I'm gunna price them up on ebay! Will be a while before that gets doen though. 1275 for the moment.
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I wouldn't say knowledgable, just inquisitive................
As for the Sherpa bellhousing, the diesel Sherpa's also used the O series block, so any 5-speed Sherpa bellhousing will do. As an aside, late 70's Sherpas used an O series motor mated to an MGB-derived box, so the MGB box (esp. with O/D) is also a possibility.
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Last Edit: Oct 6, 2006 14:19:00 GMT by moggyman
1953 Minor (Long term project)
PT Cruiser
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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Sweet! What do ya think is the best bet?? Think it'd be better to buy a cheap complete car with a decent engine.
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I'd always do that (provided you've got the room) because:-
1) you can hear the engine running and possibly even test drive it.
2) you get a load of stuff that you can sell on, thus offsetting the purchase price.
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1953 Minor (Long term project)
PT Cruiser
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Seth
South East
MorrisOxford TriumphMirald HillmanMinx BorgwardIsabellaCombi
Posts: 15,538
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Oct 16, 2006 22:51:49 GMT
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Follow your dreams or you might as well be a vegetable. |
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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SWEET! I'm liking the idea of a roof chop more and more ;D
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i love the idea of large bhp in a minor, why don't u try and find one thats already been done, u nd up saving money and hassle in the long run (ive suddenly come over all sensible)
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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Meh, I'm looking forward to the hassle ;D
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Oct 17, 2006 12:37:32 GMT
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thats what i said when i bought my completely standard mini, its now completely non standard haha
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qwerty
Club Retro Rides Member
Posts: 2,417
Club RR Member Number: 52
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Big bad minor threadqwerty
@qwerty
Club Retro Rides Member 52
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Oct 17, 2006 12:42:45 GMT
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Exactly. Half the fun is the build up!
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) lunched the bottom end doing that, I fitted a tacho & oil / water dual guage to keep a better eye on it. I also asked my then boss (a mechanical engineer, race engine designer & builder etc) what the safe redline was for a standard 1098 - his answer was that it shouldn't be taken beyond 5k & I must have been running mine at over 5.5k....
. Then after a while there's the option to put a turbo engine in ;D 
