G. brown Posted July 10, 2001 Share Posted July 10, 2001 can anyone give advice: I have a 1700 ss with a four speed box. I have thought about using the 6 speed box. will it fit? do i need to change anything else? prop shaft bellhousing etc will it make much difference? can you buy recon boxes. thanks in advance. Gary teeth.gif Link to comment Share on other sites More sharing options...
Mike Bees Posted July 10, 2001 Share Posted July 10, 2001 If you can fit the 5-speed box then you can fit the 6-speed box (the envelope is the same). ISTR that replacing a 4-speed with a 5-speed involves a chassis mod (the rear mount is in a different place), and quite possibly a different propshaft? You'd need to ensure that the 6-speed box had the right input shaft (some have Rover-compatible shafts, some have Ford-compatible). Mike Link to comment Share on other sites More sharing options...
Petrolhead Posted July 10, 2001 Share Posted July 10, 2001 Mike I didn't know you could get a 6 speed box into an envelope! Must get Caterham to send one smile.gif Better to go in a blaze of glory than to fade away teeth.gif Edited by - petrolhead on 10 Jul 2001 18:25:56 Link to comment Share on other sites More sharing options...
Mike Bees Posted July 11, 2001 Share Posted July 11, 2001 PH (hmm that could stand for something else), it's no problem getting anything into an envelope (although gravy is reluctant to stay there) - you just need a big enough envelope. Mike Link to comment Share on other sites More sharing options...
Blatman Posted July 11, 2001 Share Posted July 11, 2001 Powdered gravy goes in, no problembiggrin.gif Link to comment Share on other sites More sharing options...
FH Posted July 11, 2001 Share Posted July 11, 2001 So, who's on the hijack wagon today then question.gif FH wink.gif teeth.gif Link to comment Share on other sites More sharing options...
Bafty Crastard Posted July 11, 2001 Share Posted July 11, 2001 Has any person matched a 6 speed gear box with a crossflow engine ? I would be interested in comments although its a bit picey Link to comment Share on other sites More sharing options...
Bafty Crastard Posted July 11, 2001 Share Posted July 11, 2001 Has any person matched a 6 speed gear box with a crossflow engine ? I would be interested in comments although its a bit picey. oops sorry two postings ! Edited by - Bafty Crastard on 11 Jul 2001 09:51:14 Edited by - Bafty Crastard on 11 Jul 2001 09:51:46 Link to comment Share on other sites More sharing options...
Tim Sture Posted July 11, 2001 Share Posted July 11, 2001 Bafty - this doesn't completely answer your question but hopefully might give some help: CCC magazine fitted a 6-speed box and 120bhp 1800cc engine conversion to a Caterham Classic (originally 5-speed, 100bhp Vx 1600cc). ISTR that in the article about it they said that they reckoned the 6-speed had more of an effect on speed on track than the engine conversion. The total conversion was rather silly (cannot remember the total cost but must have been over £3k at retail from Caterham) but CCC said it was a big improvement. Their comments were slightly surprising (ie more favourtable about the 6-speed than I expected) as (1) comments about the 6-speed are strong recommendation for k-series, because of that engine's need of/like to rev (2) I know from experience that there is no point revving the Vx 1600 8v beyond 5000rpm (better acceleration changing up to higher gear) but (3) don't know if 1800cc conversion makes the Vx engine more "revvy" - I wouldn't have thought it was very likely. In my more irrational moments I wonder what my 1600 8v car would be like with a recon 6-speed... Link to comment Share on other sites More sharing options...
Mike Bees Posted July 11, 2001 Share Posted July 11, 2001 Even more fun than it is now... There's nothing like a good close set of gears to bring a grin to your face. Well OK there is, but you know what I mean. Mike Link to comment Share on other sites More sharing options...
stevefoster Posted July 12, 2001 Share Posted July 12, 2001 I would have thought a peaky 244 or even peakier 254 cammed XF would go very well with the 6 speeder. It would allow you to keep in the 'right' (most powerful) rev range through all the gears. Link to comment Share on other sites More sharing options...
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