Rich Goddard Posted December 23, 2022 Share Posted December 23, 2022 HiCan anyone share power & torque curve graphs for a 360 both before and after conversion to 420? Preferably the standard CC conversion, without any independent/third-party tuning/mapping. Cheers. Rich. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 26, 2022 Member Share Posted December 26, 2022 I can't find them in the archives.It's an interesting gap in our collective documentation.And the third-party site that used to have lots of curves seems to have disappeared... what was it's name?Happy ChristmasJonathan Link to comment Share on other sites More sharing options...
KnifeySpoony Posted December 26, 2022 Share Posted December 26, 2022 here's a dyno for a 420:https://usa7s.net/ips/uploads/monthly_2022_01/9312106_orig.jpg.d307494d9b8b2fc6372da4a66729ba26.jpg And a 420 on RBTB:https://usa7s.net/ips/uploads/monthly_2022_01/image.png.aeaa158f334d5025484fda86e9a30a68.png (tiny image but you can make out the numbers) Can't find any 360 dynos Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 26, 2022 Member Share Posted December 26, 2022 From above:420:Jonathan Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 26, 2022 Member Share Posted December 26, 2022 420 on RBTB:JonathanPS: There's probably an original image with better resolution... Link to comment Share on other sites More sharing options...
Alan Reeves Posted December 26, 2022 Share Posted December 26, 2022 shout if you want my 175 to 210 ( 420 ) data from my upgrade a few years agoA Link to comment Share on other sites More sharing options...
Rich Goddard Posted December 26, 2022 Author Share Posted December 26, 2022 Thanks very much KnifeySpoony and Jonathan I'll keep on the hunt for a 360 graph.Rich Link to comment Share on other sites More sharing options...
Rich Goddard Posted December 26, 2022 Author Share Posted December 26, 2022 Thanks Alan, PM sent. Link to comment Share on other sites More sharing options...
StevehS3 Posted December 26, 2022 Share Posted December 26, 2022 This website has the 360 listed along with other Caterham models. https://www.automobile-catalog.com/curve/2017/2515220/caterham_seven_360_6-speed.html#gsc.tab= Note it states approximation so presumably not an actual power curve. Link to comment Share on other sites More sharing options...
cobar Posted December 27, 2022 Share Posted December 27, 2022 A clarification on the dyno plot shown in #4 and linked in #3. That is the plot from my old engine. Although it has 420 cams, it has a different exhaust (4-2-1 with very long secondaries) and 45mm Jenveys. I suspect the shape of a 420 engine as fitted to a stock Caterham will be shaped slightly differently. BTW those are rear wheel numbers from a Mustang dyno.-John Link to comment Share on other sites More sharing options...
KnifeySpoony Posted December 27, 2022 Share Posted December 27, 2022 Keep in mind those dyno pics are from US owners - in the US, dyno sheets are pretty much always given with uncorrected WHP/WTQ numbers. I notice UK dyno shops tend to show corrected numbers, from my time here. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 27, 2022 Member Share Posted December 27, 2022 From Alan Reeves:Happy ChristmasJonathan Link to comment Share on other sites More sharing options...
Alan Reeves Posted December 27, 2022 Share Posted December 27, 2022 Rich ive BM you the data as from the Two Steves .Note it is a 175 to 210 which may be different to a 360 to 420 as I believe there are differences in the engines ( 360 a Mexico made unit ?) I used the original ECU with a map from CC and then fettled by the two steves. I needed different injectors and I believe the 360/420 doesnt ? Alanps JK may well post the data for me , Link to comment Share on other sites More sharing options...
John Vine Posted December 27, 2022 Share Posted December 27, 2022 Just to compare with Alan's trace, here's mine (R400D 2008 with ali plenum) from The 2 Steves, recorded in 2010:JV Link to comment Share on other sites More sharing options...
Alan Reeves Posted December 27, 2022 Share Posted December 27, 2022 mine was also the Alloy plenum set up, no TBspretty similar John Link to comment Share on other sites More sharing options...
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