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simon1291
Padawan
Joined: 27 Jul 2011
Posts: 51
Location: bedfordshire
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 Posted: Wed May 23, 2012 8:38 pm Post subject: Mpg? Which gearbox? |
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Hi got a 2.0n/a in my 77 bay using standard 1600cc gearbox. I get 100 miles to £25 but I have to be honest I feel as though I'm screaming the nuts of it at 70 but it will scream round to 100! At the moment theres no rev counter. My question is what's the most economical gearbox transplant for good mpg and motorway cruising?
Proper glad I've done the conversion though!!!! 
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Obonobo
Jedi Knight
Joined: 17 Nov 2010
Posts: 200
Location: Netherlands
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| Posted: Thu May 24, 2012 9:47 am Post subject: |
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I have a 6-rib 091 box installed. First big trip I did1L to 10km (roughly 28 mpg, if I calculated correctly). But it was running very hot, so that wasn't too good, I guess. Second trip was better but haven't topped it up yet, so can't calculate yet! Will do when done.
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Greetings from Sietze
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Driving a '75 Bay with a EJ22 '93 and 091 6-rib box.
And it's a long time since it looked anything like this! |
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Kai
Jedi Guardian
Joined: 14 Nov 2008
Posts: 1226
Location: Village life.... Enter the Vale
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| Posted: Wed Jun 06, 2012 7:22 pm Post subject: |
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I managed 130 miles to £40. But my turbo makes an addictive acceleration sensation.
Recently discovered its not running 100% too so I will hopefully get better fuel economy and probably a few extra ponies.
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Think......
Don't sleep and drive!!! |
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T2 turbo
Padawan
Joined: 19 Jan 2009
Posts: 89
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| Posted: Thu Jun 07, 2012 11:56 am Post subject: |
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| I've just done a quick calculation on a recent 400 mile trip and looks like I'm only getting 22 to gallon and that's with 915 5 speeded ouch! |
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simon1291
Padawan
Joined: 27 Jul 2011
Posts: 51
Location: bedfordshire
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| Posted: Mon Jun 18, 2012 8:24 pm Post subject: |
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6 rib it is then! Anyone got one cheap??? 
There like rocking horse sh#t found one on fleabay £750 wow!
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simon1291
Padawan
Joined: 27 Jul 2011
Posts: 51
Location: bedfordshire
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| Posted: Sun Sep 09, 2012 9:13 pm Post subject: |
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Right I think I've found a 091 box but the guy says it jumps out of 1st gear when decelerating? Any ideas? It's from a 83 t25.
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ElusiveStranger
Darth Admin
Joined: 23 May 2006
Posts: 2527
Location: Mudway, Kent
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| Posted: Tue Sep 18, 2012 5:00 pm Post subject: |
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| Obonobo wrote: | | I have a 6-rib 091 box installed. First big trip I did1L to 10km (roughly 28 mpg, if I calculated correctly). |
That's what I get if I sit at approx 60mph. 200kms/20litres bang on!
70-80mph and it drops to 24-25mpg (uk gallons) - 8.6km/l
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The advice you receive on here is worth the paper it's written on.
Your experiences are worth shed loads to others, including the f'ups - live and learn.
Wouldn't YOU rather learn by someone else's mistakes? So would they.
'78 Bay, 2 litre 091 box, EJ20 NA & the ashtray's on the 'right' side.
I don't lean forward for hills any more
Bugger, missed out on "Live fast, die young" |
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