Dan's Solex type 32 PICB trial and review and dft comparison

[dan filipi]

I have been hesitant to post this video because some might get the wrong idea that it runs bad not knowing how a cold engine affects running, and since the accelerator pump is disabled it is sluggish during accel.
In the video you see it cold start using the enrichener then accelerating is very sluggish. That sluggishness and hesitation is NOT there even in the slightest once warmed as seen in earlier video's.

Also notice that on one quick acceleration it almost died, but quickly recovered.

[video]https://youtu.be/MhzMLRhOcMM[/video]

After 15-20 seconds or so, the engine speed can be raised to 2000 rpm or so then throttle locked and enrichener turned off.
Let run at a fast idle for a couple minutes, then the throttle lock can be released so it drops to a slow idle and riden.

 

[dkl]

With my 1" runners and a single barrel 34-3 , I run like a scalded dog to 90 and then the thrill is gone,,,,IMO that is what I sacrifice with a single barrel..but with the electric choke there is no warm up time......but remember I Live in Louisiana.

 

[dan filipi]

I just find it fascinating to try little changes and experience the effect they have.
1 of which I firmly believe in is an accelerator pump may not always be needed, and when it's not, it is just wasting gas. Maybe only small drops but it's fun to see how little an engine can actually get by with and under what conditions.

I think most reach a level of performance and that's good enough, or running good but getting sub par mpg is okay with them, or running the stock carbs is fine.
To me it's fun to experiment and try to get it all.

 

[Omega Man]

Dan, I know you aren't big on aesthetics but the gray color of your manifold is ugly. Next time it's off throw some black paint on it or even better Wineberry, that would be sweet! :BigGrin:

~O~

 

[dan filipi]

Thanks Randy but I'm not into trying to please anyone with looks.

 

[mcgovern61]

Dan, is there a choke on that carb? It would seem to me that if it were given a chance for a choke to work and the carb to warm a bit, it might run smoother when cold?

 

[slabghost]

No actual choke on that model of carb. I have one of the same model.

 

[dan filipi]

The carb has an air bleed circuit, and within this circuit there is an enrichener jet.
The rpm in the video is the cold idle speed with this enrichener turned on.
It actually works really well and cold idles very smooth.
The hesitation in the video is right after cold starting. If let to cold idle for a couple minutes it will rev nice.

 

[canuckxxxx]

Interesting to follow Dan. :good: opcorn: I love my dft but then I have never had anything else. Other than test rides, I very seldom, use the secondary and when I do it is not a huge surge in acceleration. The Solex looks to be even simpler than the Weber which is night-and-day simple compared to OE setup.

Brian

 

[joedrum]

well i get a huge surge of accelleration from the dft secondary ....and dans right the dft is a user unfriendly car carb ...took a lot to tame the idle circut on my bike ...seems the advantages of the single carbs over stock is the vucume slides ...1000s and 1100s are metal and quite heavy ....loosing all instant response ....seems all later carbs produced were a downgrade in carburation and could not be adjusted ...making them look bad compared to FI systems ...sheesh early fuel injection was a joke also...ive found if one sticks to a carb and stays at it ..you can overcome the flaws in design and adjustments left off ....heat is the big popular fix for he idle circuts of no adjustments ...i have found it better to get them dialed in better to beat the rich idle as opposed to use heat ....i gotten to know my carb ..the biggest dft 32-34 that i can really keep the carb in the sweet spot ... once that happens there is no contest to the better overall system on a oldwing ...the whole idea that carb is to far away on a smaal oldwing motor is not very sound thinking to me ...the whole set up is small ..the whole idea that the carburation is even on all 4 cylinders and instantanious just kills the stock set up from the get go ....on mine power and reliability ....really nice thread to read

 

[canuckxxxx]

Dan,

is the Solex designed to work on a heated manifold like the Weber dft? Your manifold has the heat plate but have you tried it without heat? If it doesn't need a heated manifold then that is a big advantage over the dft, IMO.

Brian

 

[dan filipi]

The simple fact that there is no vacuum slides in a single carb (like the dft) is the main reason a single carb does so good in the low end torque, the mixture is introduced right now without a slider having to move first. I suspect Honda knew this since they went to the diaphragm later in the 1200 carbs.

I have not tried the Solex without heat since everything is working so well but putting a valve inline to shut it off has crossed my mind.
If nothing else, to help aid in warming the engine up. With the extra tubing and exposed copper on my heat plate it takes quite awhile for the engine to warm up.

 

[Gashog]

I am interested in this conversion for my 1984 Goldwing. I can't seem to locate one of these Solex type 32 PICB carbs. Does anyone know of a source for these new?

 

[dan filipi]

Gashog » 28 minutes ago[/url]":34sxpey3]
I am interested in this conversion for my 1984 Goldwing. I can't seem to locate one of these Solex type 32 PICB carbs. Does anyone know of a source for these new?

You might try sending the eBay seller a message if he has a line on any more. Real nice guy.

 

[slabghost]

Gashog » Tue Jun 16, 2015 7:00 pm[/url]":37ik0y6t]
I am interested in this conversion for my 1984 Goldwing. I can't seem to locate one of these Solex type 32 PICB carbs. Does anyone know of a source for these new?

Not exactly the same but new.
https://www.ebay.com/itm/191031753036?_t ... EBIDX%3AIT

 

[Gashog]

slabghost » Wed Jun 17, 2015 6:01 am[/url]":2gr9bsba]

Gashog » Tue Jun 16, 2015 7:00 pm[/url]":2gr9bsba]
I am interested in this conversion for my 1984 Goldwing. I can't seem to locate one of these Solex type 32 PICB carbs. Does anyone know of a source for these new?

Not exactly the same but new.
https://www.ebay.com/itm/191031753036?_t ... EBIDX%3AIT

Thanks for the link.

 

[mjanderson]

Anything new to report on this carb?

 

[dan filipi]

mjanderson » 3 minutes ago[/url]":1f7r5c5d]
Anything new to report on this carb?

Not much really.
It starts easy with that enrichener circuit and idles very good at 1000 rpm.
Doesn't make me gag from an over rich idle like the dft did.
There is no load up at idle causing a lopeing.
My last ride it got 42 mpg.
What else is needed really.

 

[Dusterdude]

Wow!!!

 

[joedrum]

it dose appear dans carb fits out of box as is carb better than dft epa not quite a carb product....it should also be said its also not epa infected carb....imagine that....it took dialing in that for sure.... cant wait see the vids coming on this build opcorn: