roflcopter
New member
- Joined
- Sep 30, 2013
- Location
- Lower Alabama
I have done a decent bit of poking around and it's hard to come across a 'similar setup' to base any of this off of, so I'm going to appeal to the masses and see if anyone with broad experience has any input.
As was stated in the other thread, the motor in question is a B20 that has the Isky vv101 cam, 11:1 compression, and ported head, and two DCOE40s. The current setup provides 13.5 afr at 3500 RPM, leans to 16.1 afr at 5000 RPM and then slides back down to 13.0 at 6800 RPM. After digging into the carbs today I found that the main circuit is set up as follows:
choke : 30mm
main: 115
emulsion tube: f11
air corrector: 200
From my few days of reading on these carbs this deviates a LOT from what any of the rules of thumb seem to state. For a 2000cc motor (making 120-130hp) it seems something in the neighborhood of a 145 main, f16 or f2 emulsion tube, and air corrector in the 180-190 range, along with probably a 36mm choke(which would probably be even better in the DCOE45).
My question to you is this, does what is in it seem reasonable, or should I be closer to the 'guidelines' found in a lot of the weber tuning documentation?
I am not past believing that whoever set these carbs up did by purely by the seat of their pants and happened to stumble across what's in there now as a 'working' but incorrect solution.
As was stated in the other thread, the motor in question is a B20 that has the Isky vv101 cam, 11:1 compression, and ported head, and two DCOE40s. The current setup provides 13.5 afr at 3500 RPM, leans to 16.1 afr at 5000 RPM and then slides back down to 13.0 at 6800 RPM. After digging into the carbs today I found that the main circuit is set up as follows:
choke : 30mm
main: 115
emulsion tube: f11
air corrector: 200
From my few days of reading on these carbs this deviates a LOT from what any of the rules of thumb seem to state. For a 2000cc motor (making 120-130hp) it seems something in the neighborhood of a 145 main, f16 or f2 emulsion tube, and air corrector in the 180-190 range, along with probably a 36mm choke(which would probably be even better in the DCOE45).
My question to you is this, does what is in it seem reasonable, or should I be closer to the 'guidelines' found in a lot of the weber tuning documentation?
I am not past believing that whoever set these carbs up did by purely by the seat of their pants and happened to stumble across what's in there now as a 'working' but incorrect solution.