My thundercat

[Roflhat]

Hi,
thought I'd make a thread just showing off my boat.
It's a 2005 Thundercat with a 2006 Tohatsu 50 D2. Got above prop exhaust relief holes, aftermarket nakuru coils and leads, lighting coils removed and boyesen carbon reeds.


Got 3 different props for it at the moment, trying to get another.
15p SOLAS cupped, got 42 knots.

Next to it is an 18p Mercury chopper (10 3/8 x 18), good for 49 knots

And the most recent one, Mercury cleaver (11x18) 50 knots so far.


If anyone knows of a 20 or 22p cleaver for sale let me know!

I've recently bought a set of yamaha 70 carbs to go on it and will be modifying the exhaust tube as well (opening it up and cutting 25mm from the end).
Will hopefully get the crank welded so I can remove the rev limiter and also remove the starter ring gear from the flywheel.
Should give much better acceleration, hopefully as good with an 18p prop as the standard engine was with a 15p.
If I manage to get a 22p prop and all these mods done then I reckon 60 knots is maybe achievable

Cheers,
Seumas

[Peter_C]

I so want to go for a ride in one of those

[The Bass Stalker]

Ha ha, I don't. I'd like to watch it though. Looks fun

[stray]

What are they like for fishing from?

[Tim in Yorkshire]

And also waht are they like in big seas beyond the surf zone?

[Roflhat]

They're alright from fishing from, don't really do it often but plenty guys in Australia use them for fishing.

They're really good in big seas, when the sea is calm my dads jetski keeps up, both doing 50 knots, but as soon as it gets choppy the thundercat leaves the jetski for dust. Very soft ride due to the cushion of air between the hijackers.

[matt h]

Rof. like to see one on full tilt in rough seas.. Hmmmmm Peterm get yr money out.

Have you got any video footage of this beast in action?

[lukewhiting]

Amazing boats! Love mine too

[kerny]

You took yer time young Luke nice pics

[lukewhiting]

Originally Posted by kerny

You took yer time young Luke nice pics

Already been talking to him about more speed! Haha

[matt h]

i was trying to locate a thunderbolt Luke but are very rare>> they look a lot of fun

know of any?

[stray]

They're alright from fishing from, don't really do it often but plenty guys in Australia use them for fishing.

What do you troll for, flying fish?

[Roflhat]

Originally Posted by matt h

i was trying to locate a thunderbolt Luke but are very rare>> they look a lot of fun

know of any?

Theres one for sale at the moment - 2006 5.3 meter Ceasar Zapcat Thunderbolt | Newtownabbey | Gumtree

I reckon it's a bit overpriced for a 2006 model.

Got a couple alright photos of it in rough stuff but not on this computer unfrtounately.
I have a GoPro for this summer so should get some proper footage of it

[Roflhat]

Thinking about getting the head skimmed this summer as well for more compression. Tried to measure what it is currently but the tester was useless so I've ordered a new one. From what I can tell its running around 140psi just now.
Apparently 1mm off the head raises it 30psi, anyone know what PSI is safe to run using normal pump fuel?

[Roflhat]

Originally Posted by stray

What do you troll for, flying fish?

hahaa!

[lukewhiting]

Originally Posted by matt h

i was trying to locate a thunderbolt Luke but are very rare>> they look a lot of fun

know of any?

There's some on eBay at the moment!

I'm Yet to go on a ribnet cruise! But I'm planning on it this summer

[rik_elliott]

I had a cat with a 40hp 2 pot running a semi cleaver. It was an absolute space ship in terms of speed. A bit too white knuckle for me! Yours looks amazing and I'm sure thunderbolts are fun too - the additional size will definitely add some security and confidence

[C-NUMB]

they do shift nicely...

https://www.youtube.com/watch?v=gtc2...t3xoTdQ6UQl9Vq

[Lee argyle]

Originally Posted by Roflhat

They're alright from fishing from, don't really do it often but plenty guys in Australia use them for fishing.

They're really good in big seas, when the sea is calm my dads jetski keeps up, both doing 50 knots, but as soon as it gets choppy the thundercat leaves the jetski for dust. Very soft ride due to the cushion of air between the hijackers.

My brother-in-law runs a Zap Cat with a 50hp tomatsu, I guess he can max at about 45mph, however my ski hits 70mph in under 3 sec's ( RXP-X-260), even when choppy I can lose him - however he can turn on a dim like nothing else, they are brilliant fun, but take a cushion!! lol

[Roflhat]

Originally Posted by C-NUMB

they do shift nicely...

That's a bad example

Originally Posted by Lee argyle

My brother-in-law runs a Zap Cat with a 50hp tomatsu, I guess he can max at about 45mph, however my ski hits 70mph in under 3 sec's ( RXP-X-260), even when choppy I can lose him - however he can turn on a dim like nothing else, they are brilliant fun, but take a cushion!! lol

45mph is pretty slow. The zapcats arent as fast as thundercats though, they're too heavy.
Our jetski is a big 3 seater yamaha, great machine but very uncomfrtable in really big waves like we get up here, thundercat can go through just about anything.