POLL: Best carbs for ported 701-760?

[McDog]

Whatcha got and why?

Concerned with ease of tuning, total performance, and price.


@ProSouth

 

[ProSouth]

You’re taking your admin privileges too far

 

[McDog]

Anyone can make a poll and tag someone.

 

[ProSouth]

#adminprivelege. #nonmoderatorslivesmatter

 

[DAG]

Making the assumption the builder knows how to tune carbs and that they arn't on a penny pinch budget

My vote would be for duels and smaller the better. 38's to 44's max but AM not OEM.
Better throttle response
Better fuel economy

There are plenty of JM 781's out they on 38's and they frickin rip!

 

[Big Kahuna]

my Blackjack 44's work great on my DASA 820. I asked Art about if I should upgrade to 46's when I got my DASA and he said "No, Stick with the 44's"

 

[mikesx]

701 single 44 , 760 OEM 38's if you got'em layin around.

 

[jo5hi3]

Aftermarket 46's, because bigger is always better.... hahahaha

 

[DAG]

they make AM 38's?

 

[Storbeck]

Didn't the stock superjet go up almost 10hp from no other change than 61x bottom end with a single 44 to 62t bottom end with dual 38's?

 

[Vortex]

I ran dual novi 48s on a 727 and OEM 38s. The 48s had really good mid-range acceleration. 38s easier to tune and a tad snappier off idle.

 

[Big Kahuna]

Didn't the stock superjet go up almost 10hp from no other change than 61x bottom end with a single 44 to 62t bottom end with dual 38's?

Yes, but that was from the whole motor package from the larger 62T cases along with the duel 38's.

 

[Captain PegLeg]

Single 46. Hands down. I really like a single 49 full spec on a ported 701. But it's a pricey single carb. It rips. For a couple hundred bucks savings, the 46 works fantastic.

 

[Storbeck]

Yes, but that was from the whole motor package from the larger 62T cases along with the duel 38's.

So a 62t bottom end with a single carb outperforms a 61x?

 

[Big Kahuna]

Only way this works is if you get a conversion single manifold to run a 44 or 46. A well built 61x can make good power vs a conv. 62T setup.

 

[McDog]

@JetManiac

 

[Jr.]

Single 46. Hands down. I really like a single 49 full spec on a ported 701. But it's a pricey single carb. It rips. For a couple hundred bucks savings, the 46 works fantastic.

Right here is the answer your looking for.

However, properly tuned, oem 38’s on this package are hard to beat.

 

[JetManiac]

I do not like these kind of general 'what's best?' threads without alot more specifics. I think you need to know much more specifics on motor, pipe, and usage to choose the 'best.' What's best totally depends on the details- what is best for the exact setup and which is most important- price, performance, ease of tuning, fuel economy/range.

For example, a 61x/61x 701 motor with a stock head, stock cdi, and stock cases with home cylinder porting from a template kit (that ports exhaust only) with a Coffman sizzler pipe in a SN for a guy on a budget, then the choice is a single oem or a/m 44.

At the other end, a 62t motor bored to 760, running high compression with race gas, total loss, PFP, pro case and cylinder porting in flatwater hull, then dual 46s would be a good choice.

 

[McDog]

I'm trying to convince Prosouth to save money on aftermarket carb and single intake and just get OEM 38's. I don't think it's worth the money to go to a single.

 

[McDog]

Talking about with bpipe, ada head, and charging ignition.