DYI01
05-24-2005, 07:33 AM
I was looking through the ClubRSX.com Ecu tuning forum. A member over there "BG RSX" posted a way of street tuning cam angles before you get on a dyno to save time and money while on the dyno.
to same some time on the dyno i suggest trying this:
-tune all 12 fuel maps on the street
-overlay the 6 fuel maps for the high cam
-overlay the 6 fuel maps for the low cam
-the you can create decent cam angle maps from just the fuel values
(pick the cam advance that wants the most fuel)
then when you get to the dyno, you can just bracket the cam angle maps (add 5 degrees, subtract 5 degrees) and see where you lose/make power. this should save you some time getting good cam angle maps (~3 runs instead of ~12 runs). just my 2 cents.
of course the best thing to do is a full tune, but not everyone has the money or resources to do that.
I would find that people who have wideband street setups will find this useful. To carry this thinking over to the PFC/Datalogit basically You would have to lock in the VVT map every 10 degrees and tune the a/f for that cam angle. Throw all the tuned cam angle fuel maps for all the cam angles you tuned into MS Excel and make graphs. Right now this makes sense in my head. I dont know how to explain it any better.
^^^ I know the VVT numbers are just arbitrary from past discussions, but using this methood will probably get close to the ideal VVT numbers for power.
to same some time on the dyno i suggest trying this:
-tune all 12 fuel maps on the street
-overlay the 6 fuel maps for the high cam
-overlay the 6 fuel maps for the low cam
-the you can create decent cam angle maps from just the fuel values
(pick the cam advance that wants the most fuel)
then when you get to the dyno, you can just bracket the cam angle maps (add 5 degrees, subtract 5 degrees) and see where you lose/make power. this should save you some time getting good cam angle maps (~3 runs instead of ~12 runs). just my 2 cents.
of course the best thing to do is a full tune, but not everyone has the money or resources to do that.
I would find that people who have wideband street setups will find this useful. To carry this thinking over to the PFC/Datalogit basically You would have to lock in the VVT map every 10 degrees and tune the a/f for that cam angle. Throw all the tuned cam angle fuel maps for all the cam angles you tuned into MS Excel and make graphs. Right now this makes sense in my head. I dont know how to explain it any better.
^^^ I know the VVT numbers are just arbitrary from past discussions, but using this methood will probably get close to the ideal VVT numbers for power.