Cam angle tabs

2rotormotor · Post by **2rotormotor** » Mon Oct 26, 2009 11:01 pm

why is it that on kpro you have the vtc tabs every 10 cam angle and ours goes from 15 to 30 instead of having 10 and 20? Is there anyway you guys can change the tabs ?

Post by **Hondata** » Tue Oct 27, 2009 6:48 am

That is how Honda has organized the tables with the Civic Si.

redk20simia · Post by **redk20simia** » Thu Oct 29, 2009 10:04 am

but why on certain maps are they 10-20-30 and others 0-15-30? Can you make it user selectable?

Post by **Hondata** » Thu Oct 29, 2009 6:10 pm

1. Ask Honda. 2. Possibly, but if you changed the cam angle index then you'd need to re-tune the ignition, fuel, knock, vtc & wot compensation tables.

2rotormotor · Post by **2rotormotor** » Thu Oct 29, 2009 8:53 pm

Hondata wrote:1. Ask Honda. 2. Possibly, but if you changed the cam angle index then you'd need to re-tune the ignition, fuel, knock, vtc & wot compensation tables.

right but my car likes lower angles and up top is where I would use 10-20-30 instead of just 15. I feel that i can get a more precise tune and still have the flexibilty of adjusting angles without throwing off the tune completely.

btw I notice that all maps here in miami are about 20% richer, is there a reason for this? what temp was it when you guys tuned them ?

Post by **Hondata** » Fri Oct 30, 2009 7:14 am

We tuned the vehicles fairly accurately to 13.1-13.2 AFs here. The temperature was 60-80 degrees, but there is air temperature compensation and the AF doesn't change much with temperature (hot air intakes aside).

If you're needing to retard the cam, especially after VTEC, this usually indicates an exhaust restriction.

redk20simia · Post by **redk20simia** » Fri Oct 30, 2009 9:48 am

Hondata wrote:We tuned the vehicles fairly accurately to 13.1-13.2 AFs here. The temperature was 60-80 degrees, but there is air temperature compensation and the AF doesn't change much with temperature (hot air intakes aside).

If you're needing to retard the cam, especially after VTEC, this usually indicates an exhaust restriction.

absolutely im running a ssr header with stock exhaust, I cant stand the noise of exhausts.