Advent Q's ?

[shepster]

Hi, for anyone running an Advent cdi. I am curious to know what curves/ curve set you are running on your skis, Blaster or superjet ?

Many thanks

James

 

[njfl]

I run D15, Curve 2 in my Superjet:

1500-5000: 28
5250: 26.5
5500: 25.1
5750: 23.7
6000: 22.3
6250: 20.4
6500: 19.5
6750: 18.5
7000: 18
7250: 18
7500: 18
7750: 20.5
8000-up: 23

 

[shepster]

Thanks, How modded is your ski ?

 

[JonnyB]

Prem1x is running one on his Blaster he might chime in later

 

[njfl]

Thanks, How modded is your ski ?

Very.

No, actually, it is quite conservative in porting.

933 ADA cylinder (7mm), Jetworks porting, dual 48 Blackjacks, B mod pipe, 140mm pump.

If I reduced the compression to around 150psi you could run premium pump gas (what I am getting at is that you don't need to run race gas because of agressive timing).

 

[shepster]

This is where my Blaster is : Freeride ported 85mm 61x, ported 61x cases, b pipe limited, ada head 185psi, single 49 full spectrum etc.
Running straight Av gas at the moment

What curve would you suggest ?

 

[njfl]

I'd suggest a curve with the same profile/shape, but maybe starting with a little less initial advance.

But, for the best fit curve, talk to your machinist.

Who did your porting? I would ask them what timing curve they would suggest (like if you had a fully programmable ignition). Then, talk to Greg at Advent and ask if he has one close to that. I bet he does.

 

[Watty]

I always used the following curve on a limited setup with extnsive porting. This curve is great for freestyle, but if you are running a dry pipe, or plan on racing it, you might get Advent to re-program the curve so it starts to drop off at around 4 - 4500k