Roadrunner 90 refurbishing

Help Support intlwaters.com:

Vince Fantauzzi

Well-Known Member
Joined
Oct 13, 2013
Messages
122
Hi guys... I've decided to refurbish a tired old Roadrunner (been told could also be a cayote) 90. Since high nitro content fuel around here (Toronto) is virtually impossible to find and expensive, I was thinking of retrofitting a 26 zenoah, lots of room for it. I know that the zen will not give me the speeds of the Picco 90, no biggie, since I'm not racing it. Has anyone tried this? Any issues I should be aware of before I start making engine bay mods? Balance issues?

Any thoughts and suggestions would be welcome.

Vince
 

Attachments

Vince Fantauzzi

Well-Known Member
Joined
Oct 13, 2013
Messages
122
Not sure if the footprint would be big enough for a Zen? Can you measure the inside width of the front sponsons and the length from the Trailing edge of the fronts to the prop?

You can get fuel at Hobby Hobby SIDEWINDER RACEBLEND 30% (1 Gallon) (IN-STORE PICK

Check out our NLMBC FB page: Northern Lights Model Boat Club
Inside tub width is 5" which is perfect for the gas mounts.
Inside width of sponsons is currently set @ 13" (offset to be a 3/4" narrower on the right) but it's adjustable to 18" max.
And it's 28" from trailing edge of the front sponsons to the prop.
Overall length is 46".

Vince
 

Terry Keeley

Well-Known Member
Supporting Member
Joined
Jul 24, 2002
Messages
6,140
Just sent Marc Levac a text for his Warpath size, will report back.

I'm sure it will probably work tho.


edit: my 90 hydro is 17" x 29", if you do it I'd widen the fronts...
 
Last edited:

Brad Christy

Well-Known Member
Joined
Jun 24, 2002
Messages
1,133
Just sent Marc Levac a text for his Warpath size, will report back.

I'm sure it will probably work tho.


edit: my 90 hydro is 17" x 29", if you do it I'd widen the fronts...
Terry,

I was going to say the same thing. Widen the sponson stance and switch to an extended strut, and that boat will do fine with today's gas engines.

Thanks. Brad.
Titan Racing Components
BlackJack Jydros
Model Machine and Precision LLC
 

Vince Fantauzzi

Well-Known Member
Joined
Oct 13, 2013
Messages
122
Terry,

I was going to say the same thing. Widen the sponson stance and switch to an extended strut, and that boat will do fine with today's gas engines.

Thanks. Brad.
Titan Racing Components
BlackJack Jydros
Model Machine and Precision LLC
That's great, guys...thx for the input.

Vince
 

Latest posts

Top