R20 360R or 400 engine

[Firehoser_1]

Ordering a new R20 the end of February and going back and forth over getting the stock 360R or upgrading to the 400. Live at elevation 5000' and dealer says the 360R is more than sufficient when paired with the right prop. Even with the ballast full and with people in the boat. What are your thoughts? Have any of you driven both engines and can compare? TIA


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[Rbuss4]

Go Bigger! You can always throttle back, but you can only throttle up so far, and that won't add HP

[chpthril]

Yeah, go with the 400. You will appreciate the extra power at that elevation and again at resale.

[MikeB313]

^^^ 100% agree

[robricketts]

I don’t think it’s a huge price step and I would go 400 as well.


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[cnote]

Ordering a new R20 the end of February and going back and forth over getting the stock 360R or upgrading to the 400. Live at elevation 5000' and dealer says the 360R is more than sufficient when paired with the right prop. Even with the ballast full and with people in the boat. What are your thoughts? Have any of you driven both engines and can compare? TIA


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$1500 for 50 more hp, 44ft-lbs, and all this, go 400. This is from the indmar guy that sits in tige factory:

360 does not have Fresh water sea strainer standard, 400 does

400 has multiple temperature sensors on the intake to maximize efficiency and power, the 360 does not have those sensors. Essentially it relies exclusively on the air fuel sensors to relay messages to the engine’s computer which is more inefficient

To that same point, when the engine diagnoses a problem with fuel burn, fuel/air mixtures, it is much more accurate in the 400. Also, if the engine were to have a problem and throw a code, the solution is much easier on a 400 because of all the sensors. We can determine the root cause much easier rather than hunting and pecking for a solution.

There is no fuel pressor sensor on the 360 like on the 400

We run a different, more robust, more expensive shift valve on the transmission for the 400 versus the 360.

On the drain plugs for the manifolds, we route a drain loop that has a single hand twist blue plug on the 400 versus the 360 that has two brass manifold plugs. Same purpose, just much easier to service on the 400

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[Firehoser_1]

$1500 for 50 more hp, 44ft-lbs, and all this, go 400. This is from the indmar guy that sits in tige factory:

360 does not have Fresh water sea strainer standard, 400 does

400 has multiple temperature sensors on the intake to maximize efficiency and power, the 360 does not have those sensors. Essentially it relies exclusively on the air fuel sensors to relay messages to the engine’s computer which is more inefficient

To that same point, when the engine diagnoses a problem with fuel burn, fuel/air mixtures, it is much more accurate in the 400. Also, if the engine were to have a problem and throw a code, the solution is much easier on a 400 because of all the sensors. We can determine the root cause much easier rather than hunting and pecking for a solution.

There is no fuel pressor sensor on the 360 like on the 400

We run a different, more robust, more expensive shift valve on the transmission for the 400 versus the 360.

On the drain plugs for the manifolds, we route a drain loop that has a single hand twist blue plug on the 400 versus the 360 that has two brass manifold plugs. Same purpose, just much easier to service on the 400

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Thanks for the info and recommendations. I'll go with the 400. [emoji109]


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[cnote]

Thanks for the info and recommendations. I'll go with the 400. [emoji109]


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glad i had and you could use the info!

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