Midlake Crisis
Site Supporter
- Location
- Bakersfield, CA
Anyone have experienced opinions on running dual carbs ( I.e with an R&D adapter) on 61x cases?
Last edited:
Gains from dual carb conversion on 61x case?
- Thread starter Midlake Crisis
- Start date
Tyler Zane
Open Your Eyes
- Location
- Panama City Beach, FL
hell i'd run a single carb on 62t cases
- Location
- wichita, ks
we did it also and had issues with the tune couldnt ever get it right ended up going back to the stock single
- Location
- Great Pacific Northwest
I have a single, Blackjack on my 61x 718 jetmaniac motor and it hits great! I've also heard that dual carbs on the 61x case can be difficult to tune.
- Location
- Tri-Cities, WA
I ran dual mikuni retail 44's on a bcw mani with a jetworks ported 61x cased 701. It hit identical to my roommates jetworks 62t cased 701 with arts mod 38's. Arts jet and tuning specs were spot on.
Sent from my SM-N900V using Tapatalk
Sent from my SM-N900V using Tapatalk
- Location
- Cleveland, Ohio
Ive got dual protec 38s on a 61x blaster but the motor is shot... Never seen it run either. Ill let you guys know in a week or so how it runs.
- Location
- wi
A close buddy of mine did this. He had a tough time getting it dialed in but eventually got it. His boat was a dry pipe, 760 bore, water injection, etc. he said he noticed a little more hit out of the corner but nothing crazy. Especially for how much time he spent on it.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
Midlake Crisis
Site Supporter
- Location
- Bakersfield, CA
Very glad I asked, thanks all for good info.
mr.fixitman760
if it aint broke, dont fix it
- Location
- St. Clair, MI
I ran modded 38s on a 61x with protec manifold, combined those with ADA head and fp type 9 drypipe and the ski ran like a monster, really didn't change the tuning much from factory pipes recommendation for the pipe
- Location
- Ourense, España
Hello, I write to you from Spain, forgive my English, it turns out that I have a 61x engine in a zodiac projet and I want to couple two carburetors of 44, many people have told me that it is not possible, that it does not admit them and that they should be 38 Could you get in touch with me and tell me how I do it? I will be eternally grateful. My email is originalwess78@gmail.com
- Location
- California
You will not gain any performance by going to dual carbs especially in your zodiac conversion. Just stick with the one simple carb.
waxhead
wannabe backflipper
- Location
- gold coast
I have not done it but I have done a little carb tuning in my time. I would expect a little more hit and a little bit more at the top( not much)
The issue i see is the reeds on a 61x are quite small and you would quickly hit the limit of the reeds abilty.
The issue i see is the reeds on a 61x are quite small and you would quickly hit the limit of the reeds abilty.
- Location
- Ourense, España
I also have pro-tec exhaust and solas impeller, do you still recommend me simple carburetor?
- Location
- California
Yes. For your application the single carb is ideal and easier to tune and maintain.
- Location
- Ourense, España
Ok, thank you very much
Flash-FX
No Square..No Round..FX-1
- Location
- South Jersey Shore
For a 61X setup, the best all around intake is from the old Wet Jet (gold motor). Designed by Bob Santos (Westcoast). It has like built in stuffers to help reduce the crankcase volume. It also came fitted with a 46mm carb. But with a 44mm on top, it would be a little easier to tune out those flat spots. Dual carbs on a 61X would be for a advanced tuner that wants to fiddle with stuff (can O worms).
Back in the early mod days before the 62t came out, we used to band saw the reed section off the X case and weld on the reed section from a K750. Did all that work because the X case would not flow efficently with duel carbs on a ported cyl. So for Duels, definately recomend the T case. However, like Flash mentioned, the WetJet intake on an X case runs very good! I have built several running single 49 Full Spec carbs on a 735 mod cyl with Great success.
If your heart is intent on the X case? Then may I suggest larger bore single carbs as your platform.
As an alternate suggestion, you are running this in an inflatable ? So rather drive yourself crazy with duel carbs?
Why dont you just transplant in a good used 760 and call it a day? More than enough torque to push your inflatable will several passangers aboard!
Ski ya, Paul
If your heart is intent on the X case? Then may I suggest larger bore single carbs as your platform.
As an alternate suggestion, you are running this in an inflatable ? So rather drive yourself crazy with duel carbs?
Why dont you just transplant in a good used 760 and call it a day? More than enough torque to push your inflatable will several passangers aboard!
Ski ya, Paul