waxhead
wannabe backflipper
- Location
- gold coast
Do you richen the mixture up down low for the more advance curve. Because of the higher advance it will require more fuel down low
Freestyle Epic curve thread
- Thread starter Pablo
- Start date
Boris
The Good Old Days
- Location
- The surf-less coast
I just don't get the whole curve bit.
Not bagging it, just don't see when I would need one as opposed to the other.
Not bagging it, just don't see when I would need one as opposed to the other.
waxhead
wannabe backflipper
- Location
- gold coast
Boris it has a major effect on the power band of your engine. Up to a certain point the sooner the advance comes in the sooner/ harder the power band hits.
When you can combine the advanced timing with correct jetting for the curve then the gain is increased even more.
When you can combine the advanced timing with correct jetting for the curve then the gain is increased even more.
OCD Solutions
Original, Clean and Dependable Solutions
- Location
- Rentz, GA
No, I am dialed in for the higher advance curve, I detune it slightly for surf.
I go between flatwater and surf so I like the option of switching between curves. Why build up a custom motor and then run a curve made to suit a wide variety of engines when you can dial in a curve to suit your mods and be changeable as your needs change.
Boris
The Good Old Days
- Location
- The surf-less coast
I get all that. Just don't see when I would need 2 curves.
I do setup my ski differently for when the water and air hit summer temps so maybe a different curve could come in handy.
Again, I get the benefits of a programmable CDI (I'm getting one for my new build) but the curve A and B thing seams a bit overkill for me.
OCD Solutions
Original, Clean and Dependable Solutions
- Location
- Rentz, GA
I'm sure that most Epic owners feel the same way and never program up the second curve either but it sure is good to have options.
Another situation where two curves are good is to answer the much asked question, "Can you really feel the difference between curves?", load up two curves and switch back and forth on the water for true back to back testing. It's a tuners thing.
Boris
The Good Old Days
- Location
- The surf-less coast
That's a good point.
Switch back and forth to see the difference.
Guess I'll see when my ski comes together. Might have one regular curve and one for the long WOT runs through the mangrove trails mid summer.
Switch back and forth to see the difference.
Guess I'll see when my ski comes together. Might have one regular curve and one for the long WOT runs through the mangrove trails mid summer.
D-Roc
I forgot!
- Location
- Dirty River Rider
wax, in the past when i was setting up a tl curve for my motor i took your advise and came up with a curve alot like yours for my motor. i also took chris's advice about hold max timing up into 5000-5500 rpms as it is approx the rpm you would be at when charging your setup wake. this curve did not give me a powerband, the motor pulls hard at all rpms right off idle, it doesn't kick in harder at a certain rpm, it has the lightswitch effect for a good 3 seconds. it was a 735cc motor so the motors hit was over quick but it packed a serious punch. thank you. i have been running this curve for a while now and love the attitude of my motor.
waxhead
wannabe backflipper
- Location
- gold coast
Your welcome d-roc, happy to have helped. I guess you could run the advance for a bit longer its stems from my racing days.
holding it to 4750 on the dry pipes used to eat at the o-rings so I pulled it out a bit earlier to stop this issue. On a b-pipe holding it on a bit longer would be fine as it doesnt have quite the same scavenging as drypipe has.
holding it to 4750 on the dry pipes used to eat at the o-rings so I pulled it out a bit earlier to stop this issue. On a b-pipe holding it on a bit longer would be fine as it doesnt have quite the same scavenging as drypipe has.
D-Roc
I forgot!
- Location
- Dirty River Rider
i hold 32 untill 5500 and drop it way down way fast to hit 17 at 7200 rpm. this does make the power flatten out on the very top end but that is fine for me. that was 190psi on 94 octane and rich carbs.
Big Freek'n Queston here: (me thinks) and I see this possible issue on most curves.
on this curve what is the timimg at:
4600rpm
5000rpm
5500rpm
5900rpm
Does the timing follow the graph created by the editor or does MPU step from point to point.
ex.
4600rpm = 21 degrees
or
5900rpm = 32 degrees
on this curve what is the timimg at:
4600rpm
5000rpm
5500rpm
5900rpm
Does the timing follow the graph created by the editor or does MPU step from point to point.
ex.
4600rpm = 21 degrees
or
5900rpm = 32 degrees
Attachments
waxhead
wannabe backflipper
- Location
- gold coast
The ignitions I used to do http://www.hpi.be/applist.htm did and I would assume these ignitions do the same
I used to use the power jet circuit to turn on the water injection until I figured out what you could do with a decent curve on the right carb jets
I used to use the power jet circuit to turn on the water injection until I figured out what you could do with a decent curve on the right carb jets
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The answer to your question is no, this would be pretty crude, between 4600 and 5900 it would do straight line interpolation. In other words, what you see is what you get, it follows the graph on the screen.
Chris.
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D-Roc
I forgot!
- Location
- Dirty River Rider
34 huh? my plate is set for 33 max so i can flick a switch or two. lol. its a good curve.
D-rok 33 just won't cut it on the hard streets of Sydney Australia its 34 or nothing I don't see the point in these gay rollercoaster curves get that bitch up there then pull her out some of these curves remind me of being 10 years old with my arm out the window of car weeee weeee good times I know what works for me!
D-Roc
I forgot!
- Location
- Dirty River Rider
haha, screw these biatch curves, i am moving my pickup plate!