Blaster 44 or 46 in modded Blaster?

[MacSuper]

I have a Blaster with all the usual mods bigbore (cant remember bore size) no porting, bpipe,head for pump gas,10-16 prop and I am currently using a 44 Mikuni and wondering if the 46 would be better for the setup? I know plenty of people are using the 44 for the same type of mods just seems like it needs more. Could be my tuning, I will admit that. Just looking for some thoughts thanks Jason.

 

[Little_Franny]

Yes, 46 tuned properly will be better than a tuned 44

 

[MacSuper]

I was thinking the same thing about the 46. I thought i would get a 46 and start with a 2.0 or 2.3 n/s and maybe 120 low and 150 high? Maybe 20 or 21 for popoff? Any thoughts?

 

[SanoWK]

I have a 46 for sale if interested

 

[Vumad]

You should also consider what is more important to you. Going up in carbs can get more but also burns a lot more fuel in the process. My Superjet sips fuel with 38s. Guys with 44s and otherwise the same mods burn significantly more over a tank. It can be a hassle for riding time or extra costs for minimal returns. With that said I do have 44s on my x2 so I do see both sides of the coin. It's just an angle to consider. Is it worth a bunch of extra time and money for a minimal improvement or would that money be better spent having a pro tuner fine tune your cooling, your carbs, etc. a good tune job can often pull more power out of a machine than a new part. Bigger is not better. I would consult a tuner, and I believe the end result best to be to keep the 44s and have the tuner dial that thing in perfect.

 

[eastcoastjumper]

I was thinking the same thing about the 46. I thought i would get a 46 and start with a 2.0 or 2.3 n/s and maybe 120 low and 150 high? Maybe 20 or 21 for popoff? Any thoughts?

Its not gonna make much of a difference than having your 44 set up properly.

Buy a pop off tester and put a 2.0 needle and seat in your 44. Set the pop off to 20 lbs.
Buy a 120-125 low jet, and a 147.5 main jet and dial your screws in perfect. It will run the way its supposed to.


A 46 requires larger jets than a 44 because it draws with less velocity. I had to put a 130-135 low and a 160 something high. Using a 2.3 n/s and 20 ish psi pop off.

 

[Quinc]

Its not gonna make much of a difference than having your 44 set up properly.

This^ It will help, but probably not enough for you to notice. I would spend your time dialing in the current carb and exhaust. Now if you come across a good deal on a 46 then you should get it.

 

[MacSuper]

I noticed the changes needed in jets on the 46 over 44 on another boat. I think i will continue to tune the 44 and if a 46 comes my way on a deal try that.