111R 2nd Cam Question
111R 2nd Cam Question
Author
Discussion

aussiebeano

Original Poster:

863 posts

232 months

Monday 17th September 2007
quotequote all
when I bought my 111R 6 weeks ago, the salesman said that once on 2nd cam, change up a gear and the 2nd cam will stay on for 2 seconds to give a chance of getting the next gear engaged without risk of dropping off the 2nd cam. Reading the forum and driving experience are telling me otherwise - I still get the 2nd cam surge on the newly selected gear. Am I being told porkies? confused

Before anyone asks, yes - I do plan to remap and lower the 6200 to 5500 rpm for 2nd cam kick in. Will do that after the HID lights, hurricane induction, 2bular exhaust, etc.... biggrin

NathanE

539 posts

233 months

Monday 17th September 2007
quotequote all
I've never heard of a "2 second timer" before. It's all revs dependant. There are mechanical restrictions as to why the 2nd cam isn't engaged at lower revs AFAIK.

On stock ECU:
2nd cam turns ON at ~6000-6200rpm
2nd cam turns OFF at ~5700rpm

On motorsport ECU
2nd cam turns ON at ~5700rpm
2nd cam turns OFF at ~5700rpm

That's my understanding anyway.

999

402 posts

243 months

Monday 17th September 2007
quotequote all
I like to use the second cam as much as possible, and in my experience, unless you pretty much reach the rev limiter in each gear (remember that it's a different value depending on the gear selected), you'll have a difficult job keeping in 'the zone' after each change up. It can be done, of course, but I don't think you've got anywhere near two seconds to change gear - the revs would drop by a significent amount in that time.

S Works

10,166 posts

281 months

Monday 17th September 2007
quotequote all
Total cobblers as far as I'm aware. Personally I'd go for the remap before all that other stuff.

Phil-CH

1,132 posts

295 months

Tuesday 18th September 2007
quotequote all
aussiebeano said:
the salesman said that once on 2nd cam, change up a gear and the 2nd cam will stay on for 2 seconds to give a chance of getting the next gear engaged without risk of dropping off the 2nd cam.
AFAIK, it's 2 seconds that the ECU lets you rev up over 8000 rpm (but max 8500rpm) before cutting in the rev limiter. That's why you'll get to about 8500 rpm in 1st and 2nd gear and less in higher gears.

Cheers Phil