Danielrx Posted May 15, 2014 Share Posted May 15, 2014 I just purchased a 2001 Caterham 1700 Super Sprint. It has the crossflow engine with dual Webers. I live in Northern California and don't know how much octane these motors require. Will 91 oct unleaded be sufficient? Thanks and looking forward toy meeting lots of you. Best, Dan Link to comment Share on other sites More sharing options...
coffee break Posted May 15, 2014 Share Posted May 15, 2014 Sounds like a plan. That's the grade I've been using. Link to comment Share on other sites More sharing options...
TheDingo8MyBaby Posted May 16, 2014 Share Posted May 16, 2014 A 2001 should have unleaded valve seats, but you never know until you've opened it up... Otherwise, there are a lot of other factors involved (timing, compression etc). I had a '99 Crossflow 1700 Super Sprint that I ran on 91 here in california without any issues. Link to comment Share on other sites More sharing options...
Danielrx Posted May 16, 2014 Author Share Posted May 16, 2014 Dingo, I see you live in San Jose. I live in Santa Cruz. Do you currently have a 7? If you have time I would like to meet with you at your convenience to talk 7's and local resources. I have purchased my 7, but don't get it here in Ca. for a few weeks. Thanks, Dan Link to comment Share on other sites More sharing options...
Kitcat Posted May 16, 2014 Share Posted May 16, 2014 My 97 X-flow ran fine on 91 octane. Link to comment Share on other sites More sharing options...
TheDingo8MyBaby Posted May 16, 2014 Share Posted May 16, 2014 Yes - I have a 1963 Series 2. It is coming back together slowly, but it's running and driveable. I am happy to meet and talk 7's. I'll PM you my contact info. Link to comment Share on other sites More sharing options...
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