Roland Posted June 12, 2002 Share Posted June 12, 2002 I am thinking of getting an R300 Reasons... I want a more powrefull car than my current 1.4 The cost is good compared to up speccing a Roadsport with a 1.8 But... I think I would prefer a 5spd box. The first 2 or 3 gears are low enough..for me but a 6 speed is only 1:1 in top. For touring I would want the 'overdrive' .8:1 that the 5spd has Not asked Caterham if this is possible. Your opinions folks please Link to comment Share on other sites More sharing options...
Red SLR Posted June 12, 2002 Share Posted June 12, 2002 I have gone for an R300. The 6 speed box is fine for touring, 70mph is 4000 revs from memory. X777CAT Link to comment Share on other sites More sharing options...
Graham Sewell Posted June 12, 2002 Share Posted June 12, 2002 If you go for the 5-speed, look at the CR semi-helical gear set from SPC. May be a reasonable compromise - albeit at additional cost. See their web site Low tech luddite - xflow and proud! Edited by - Graham Sewell on 12 Jun 2002 11:46:27 Link to comment Share on other sites More sharing options...
Peter Carmichael Posted June 12, 2002 Share Posted June 12, 2002 I would imagine a five speed box would knock a chunk off the resale value, and to my mind it would ruin the fun. Peterid=teal> 253 BHP K-seriesteeth.gif, no gearboxbum.gifid=red> Link to comment Share on other sites More sharing options...
Robin Renton Posted June 12, 2002 Share Posted June 12, 2002 Get a 3.62 diff (as opposed to a 3.92) then you'll be fine. Bye now, off to Le Mans. Robin. Link to comment Share on other sites More sharing options...
Peter Carmichael Posted June 12, 2002 Share Posted June 12, 2002 Yes, agree. 3.62 diff with a six speed is a very good combination on a ~140-160bhp K. Peterid=teal> 253 BHP K-seriesteeth.gif, no gearboxbum.gifid=red> Link to comment Share on other sites More sharing options...
murph7355 Posted June 12, 2002 Share Posted June 12, 2002 Forget the 5spd. The 6spd has a superb shift action and suits a K series perfectly. Go for it and have no regrets (wind and tyre noise are worse at cruising speed than the lovely engine/gbox noises anyway). I have a 3.92 diff and find that fine also. Acceleration is that bit perkier than a 3.62, though revs are higher for any given "cruising" speed. Big deal I say when you can hammer the throttle and get that bit more gusto. And it's rare you need to go higher than 130ish anyway. Link to comment Share on other sites More sharing options...
Peter Carmichael Posted June 12, 2002 Share Posted June 12, 2002 I was forgetting that R300s have bigger wheels, so a 3.92 would probably work well. Peterid=teal> 253 BHP K-seriesteeth.gif, no gearboxbum.gifid=red> Link to comment Share on other sites More sharing options...
Kevork Posted June 12, 2002 Share Posted June 12, 2002 Roland, I have just placed an order for an R300 and I would very very strongly recommend that you keep the 6 speed box. It is in my opinion the jewel in the Caterham crown! If you really want a 5 speed box with o/d than go for a Roadsport which has one as standard (inc. weather gear and heater). Speccing down an R300 and than adding things like weather gear, heater, normal seats and carpets to make it like a Roadsport is not a cheap route to take. With regards to the final diff a 3.62 with the 6 speed box might be an option. Although the R300 has 15" wheels the tyre diameter of the rear 15" CR500s is the same as the rear 13" CR500s (21.8"). Note, you can also specify a 3.38 final diff, but this I think will make your first gear way too high? Kevork Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted June 12, 2002 Share Posted June 12, 2002 I don't like the 6 speed box, but then again, I don't like K's so what do I know?? smile.gif Alex Wong www.alexwong.net www.slipstream-trackdays.co.uk _________ / __ __ / ___ _//__T/__/_ ___ / (_) (_)/ /`-'/o/ _______ /o/`-'/ / /// ( VDU7X ) // / /___/--_________/--/___/ Link to comment Share on other sites More sharing options...
murph7355 Posted June 12, 2002 Share Posted June 12, 2002 At least you know what you like. Even if you are wrong on both counts smile.gif Link to comment Share on other sites More sharing options...
CHRIS CLARK Posted June 12, 2002 Share Posted June 12, 2002 ............ Good self made point Alex!!! I have 13" wheels (with 60 profile) with a 3.92 diff and six speed and find that the inevitable motorway work is rather 'hurried' with an indicated 80 MPH = 4,500RPM & 27 mpg. I rather fancy a 3.62 diff, but wouldn't go back to the five speed box I used to have. Now, a six speed with five well spaced ratios and the sixth as an overdrive would be great!!!!!!!!! Over to you Phil........................... Link to comment Share on other sites More sharing options...
mav Posted June 12, 2002 Share Posted June 12, 2002 IIRC the 3.62 diff is standard when you spec the 6 speed box. At least it was last year when I ordered mine. Regards Martin Link to comment Share on other sites More sharing options...
Roland Posted June 13, 2002 Author Share Posted June 13, 2002 Thank you all (Even Alex) a 6spd it is then, now...diff ratio? I recon 3.6 but is that in LSD form? And should I get the windscreen and weather gear? Flaired wings which I prefer or cycle wings for resale? It is never ending isn't it. Oh well, If I get it wrong I can always just order another car. It's only money. Thanks again. Link to comment Share on other sites More sharing options...
Red SLR Posted June 13, 2002 Share Posted June 13, 2002 You will have to spec LSD, 675 UKP. Weather gear, yes IMHO. Cycle wings IMO. Simon. X777CAT Link to comment Share on other sites More sharing options...
Gary G Posted June 14, 2002 Share Posted June 14, 2002 If the R300 is anything like the Superlight (which I believe it is) you can't have flared wings because is comes with wide-track suspension as standard. C7 GAR id=red> Link to comment Share on other sites More sharing options...
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