Twin Honda BF350s on a Pontoon: Real-World Performance Test Results

When someone asks us what twin Honda BF350s feel like on a pontoon, we do not have to guess. We have the data.

A 2025 Avalon Catalina 2585CRB — a 25-foot, 8-inch pontoon — was rigged with two Honda BF350 V8 outboards and put through a full performance test on July 16, 2024. The prop of choice was the Lexor HP 21P, a high-performance stainless steel prop well-suited to high-horsepower pontoon applications.

The results are exactly what you would expect from 700 combined horsepower on a pontoon platform: extraordinary.

Why Twin BF350s?

The Honda BF350 is already the most powerful single outboard Honda makes. It is a 3.6-liter V8 that produces 350 HP and has earned Honda the Top Dealer Award for BF350 on Pontoon — an award Carefree Boat Sales holds. On a Godfrey Monaco, a single BF350 has been documented at 52 MPH on Lake Lanier.

So why go twin?

Because some buyers want more. More top speed. More hole shot. More confidence at wide-open throttle with a full boat of passengers. And for a 25-foot-plus pontoon platform carrying a large group, twin engines also provide redundancy — if one engine has an issue on the water, you get home on the other.

Twin BF350s deliver 700 HP combined. That is not a pontoon anymore in the traditional sense. That is a performance machine that happens to have a pontoon platform underneath it.

The Test Boat: 2025 Avalon Catalina 2585CRB

The Avalon Catalina 2585CRB is a 25-foot, 8-inch tritoon platform. It is a well-built, full-featured pontoon with a wide beam and a solid tritoon package — the kind of boat that can handle serious power without feeling unstable.

Rigged with two Honda BF350 V8 outboards and the Lexor HP 21P stainless steel prop, this is a purpose-built performance configuration. The Lexor HP is a high-rake, high-performance prop designed specifically for high-horsepower applications where top speed and clean ventilation at wide-open throttle matter.

What the Test Data Shows

The full performance test document is available for download below. Here is what the data tells us at a high level:

Top speed with twin BF350s on a 25-foot tritoon platform is in territory that very few pontoons ever reach. The combination of 700 HP, a performance prop, and a properly set-up tritoon hull produces numbers that rival dedicated performance boats.

Hole shot and mid-range acceleration are where twin engines really separate themselves from single-engine builds. Getting a fully loaded pontoon up on plane quickly — especially in rough water or when you are pulling a wakeboarder — requires torque and power delivery that a single engine simply cannot match at the same RPM range.

Fuel consumption at cruise RPM is where Honda's V8 technology earns its reputation. The BF350 is not just powerful — it is efficient for its displacement. Twin BF350s at cruise RPM deliver strong fuel economy relative to their output, which matters when you are running long days on the water.

The Lexor HP 21P prop was the right choice for this application. Prop selection on a high-horsepower twin setup is critical — the wrong prop leaves performance on the table or causes ventilation issues at wide-open throttle. The Lexor HP 21P is designed to stay planted and deliver clean thrust at the RPM range where twin BF350s operate best.

Download the Full Performance Test

The complete test document — including full RPM, speed, and fuel consumption data across the entire throttle range — is available here:

Download: 2025 Avalon Catalina 2585CRB Twin Honda BF350 Performance Test (PDF)

This is real-world data from a real test, not manufacturer estimates. If you are considering a twin-engine build, this document gives you a clear picture of what to expect.

What This Means for Your Build

At Carefree Boat Sales, we are Honda Marine Premier Partners and Godfrey Platinum Dealers. We build twin-engine pontoons on both the Godfrey Monaco platform and other premium tritoon platforms for buyers who want the absolute best.

A twin BF350 build is not for everyone — it is a significant investment, and a single BF350 already delivers 52 MPH performance that most buyers find more than satisfying. But for buyers who want the top of the performance envelope, twin BF350s on a quality tritoon platform is the answer.

Here is what we know from experience:

• Single Honda BF350 on a Godfrey Monaco — from $79,995. Documented 52 MPH on Lake Lanier. The best single-engine performance pontoon on the market at this price.
• Twin Honda BF350 builds — for buyers who want 700 HP, maximum top speed, and the confidence of redundant power on the water. Call us for pricing on a custom twin-engine build.

Both configurations use Honda's factory-trained service network. As a Honda Marine Premier Partner since 2014, our technicians know the BF350 better than anyone in the Southeast.

Talk to Us About a Twin-Engine Build

If the performance test data has you thinking about a twin-engine pontoon, we would love to talk. We have built twin-engine Monacos and other high-performance tritoon configurations for buyers on Lake Lanier and Lake Norman, and we know exactly what it takes to do it right — from hull selection to prop choice to rigging.

Call (678) 725-3749 for Lake Lanier or (704) 574-2103 for Lake Norman. Or stop by and see us in person. We will put you on the water in a BF350-powered Monaco and let you feel what Honda's top engine can do — and we can talk through what a twin build would look like for your situation.

The data does not lie. Twin Honda BF350s on a pontoon are something special.