The Honda BF 150 Project

**WavetoWave** · 09-25-2018, 02:04 PM

Here are some details on how the project came to be and some details about it. Should be an interesting project to say the least.

Article
https://www.wavetowave.com/home/2018...tboard-revs-up

Block is sleeved, large bore piston from Wiseco, Saenz connecting rods. Custom ECU by Motec. Custom 4Piston cylinder head.

**WavetoWave** · 09-25-2018, 02:24 PM

Goal is to be the lightest 250+ HP, 4 stroke.

Potential test boat:

**Greg G** · 09-25-2018, 10:24 PM

Originally Posted by WavetoWave

Goal is to be the lightest 250+ HP, 4 stroke.

Put a target weight up. Will you be <500lbs all in?

**WavetoWave** · 09-26-2018, 01:12 AM

Originally Posted by Greg G

Put a target weight up. Will you be <500lbs all in?

Ya, should be about 470.

**home made tunnel** · 09-25-2018, 02:52 PM

That article is just some basic info - Where's the project info? I was looking forward to seeing some rice tuners rip apart and modify a BF150

**WavetoWave** · 09-25-2018, 03:40 PM

Originally Posted by home made tunnel

That article is just some basic info - Where's the project info? I was looking forward to seeing some rice tuners rip apart and modify a BF150

Can't reveal everything, but lots of information there.

**Markus** · 09-26-2018, 05:06 AM

Originally Posted by WavetoWave

Can't reveal everything, but lots of information there.

Where?

**home made tunnel** · 09-26-2018, 04:09 PM

Originally Posted by Markus

Where?

Lol that's what I said. It doesn't talk about the ouboard build at all - just "We're going to do something..."
TEASE !

Lets see the motor ripped apart - Lets see the pistons and rods going in - Lets see the powerhead sitting next to an automotive block?

**oldschoolltv** · 09-25-2018, 04:50 PM

We were a Honda motorcycle dealer for 35 years some of the bikes run hours above 10,000 rpm’s on the race circuit with rev limits up to 14,000+ Why can’t they turn one of these 8,000 and still be reliable. Subsribed.

**WavetoWave** · 09-26-2018, 01:14 AM

Originally Posted by oldschoolltv

We were a Honda motorcycle dealer for 35 years some of the bikes run hours above 10,000 rpm’s on the race circuit with rev limits up to 14,000+ Why can’t they turn one of these 8,000 and still be reliable. Subsribed.

Absolutely, this will rev to 8,000.

**Radiant** · 09-25-2018, 04:53 PM

This should be a good project. What are the plans for the lower unit?

**WavetoWave** · 09-26-2018, 01:13 AM

Originally Posted by Radiant

This should be a good project. What are the plans for the lower unit?

The one in SEMA will have a stock lower, with a nosecone and custom gears. But in reality it will need something better.

**NeedOne** · 09-25-2018, 10:07 PM

This is awesome. K series is such a great engine.. never knew thats what was under the cowl of Honda O/Bs
Im picturing a k20a valve train and vtec killer cams on the K24.. NA power for light weight!
whatever route you go, its a super cool project

**Jim Gibbs** · 09-27-2018, 07:32 AM

Originally Posted by NeedOne

This is awesome. K series is such a great engine.. never knew thats what was under the cowl of Honda O/Bs
Im picturing a k20a valve train and vtec killer cams on the K24.. NA power for light weight!
whatever route you go, its a super cool project

I've been daily driving an '04 RSX type S with the K20. Parked it at 300K miles to do a refresh before something broke. Original clutch, water pump, alternator, etc. What a great fun little car. I have a K24 out of an '07 TSX that has the more aggressive cams, so, will use the K20 head on the K24 bottom end and cams. Should make about 285 reliable horsepower.

**NeedOne** · 09-27-2018, 07:50 AM

Originally Posted by Jim Gibbs

I've been daily driving an '04 RSX type S with the K20. Parked it at 300K miles to do a refresh before something broke. Original clutch, water pump, alternator, etc. What a great fun little car. I have a K24 out of an '07 TSX that has the more aggressive cams, so, will use the K20 head on the K24 bottom end and cams. Should make about 285 reliable horsepower.

They are such fun cars - '06 type S was the first 'cool' car I bought for myself.. still miss it sometimes!
Sounds like you have a solid build planned - its awesome how Hondas are like legos you can mix and match so easily.
The vtec killer cams I think would be perfect for an outboard - they kill the low cam and its just permanently in high cam.. imagine that on a STV or something

Side note - Whats up with hating on people that contribute to S & F... gonna drive away the few that are contributing with big projects like this one