Hi Karl here, am based in Rotorua.
Here is something a bit different.
A 23 foot Keelowcraft tunnel hull boat fitted with a 1JZGTE.
The engine internals are standard (for now), but the head has a backcountry port job. Runs a single Holset HX-52 turbo, LS2 truck ignition coils and a Wolf ECU. Have a WB-O2 wideband and Haltech knockears for tuning.
1jZGTE Marathon Jetboat
Re: 1jZGTE Marathon Jetboat
Awesome! How long did it take to build? Any idea what its top speed might be?
Re: 1jZGTE Marathon Jetboat
Holy bejesus this thing is awesome!
Being in the water means the giant turbo isnt much of an issue with less resistance to the motor? (In regards to lag)
Being in the water means the giant turbo isnt much of an issue with less resistance to the motor? (In regards to lag)
Philip
Phone: 021647974
Email: philip_huynh@yahoo.com
http://jzx100chaser.wordpress.com/
http://stylishtuningshop.wordpress.com/
Phone: 021647974
Email: philip_huynh@yahoo.com
http://jzx100chaser.wordpress.com/
http://stylishtuningshop.wordpress.com/
Re: 1jZGTE Marathon Jetboat
NICE! JZ Powaarrrr!!!
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Re: 1jZGTE Marathon Jetboat
About 2 years to build as did everything ourselves. Does about 75-80mph at the moment. Still have to play around with the trim and jetunit intake to get it flying properly.m989 wrote:Awesome! How long did it take to build? Any idea what its top speed might be?
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Re: 1jZGTE Marathon Jetboat
Yep that's correct as the jetunit doesn't really load up until 4000 rpm.Tofu wrote:Holy bejesus this thing is awesome!
Being in the water means the giant turbo isnt much of an issue with less resistance to the motor? (In regards to lag)
Motors get a hard time in a race boat as often you can run 20psi boost 5,800rpm for 30minutes without lifting off. Generates a lot of heat!
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Re: 1jZGTE Marathon Jetboat
Here is a vid of our first testing. Had a Holset HX35 on it then. Crank the sound up!
m2x6AfGr_WA
m2x6AfGr_WA
Re: 1jZGTE Marathon Jetboat
How do you cool it?jetboatkarl wrote:Motors get a hard time in a race boat as often you can run 20psi boost 5,800rpm for 30minutes without lifting off. Generates a lot of heat!
Philip
Phone: 021647974
Email: philip_huynh@yahoo.com
http://jzx100chaser.wordpress.com/
http://stylishtuningshop.wordpress.com/
Phone: 021647974
Email: philip_huynh@yahoo.com
http://jzx100chaser.wordpress.com/
http://stylishtuningshop.wordpress.com/
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- Member
- Posts: 13
- Joined: Wed Jun 05, 2013 4:46 pm
Re: 1jZGTE Marathon Jetboat
Raw water from the jet unit goes through a sandtrap (hydrocyclone) and then directly into the water pump, water leaves the head and goes overboard.Tofu wrote:How do you cool it?jetboatkarl wrote:Motors get a hard time in a race boat as often you can run 20psi boost 5,800rpm for 30minutes without lifting off. Generates a lot of heat!
Re: 1jZGTE Marathon Jetboat
what wolf ecu? who tuned it? my mate has a holset hx50 and wolf v500 ecu on his 1j and struggled to find a good tuner