Project Street Maxx.

[Snook Man]

I’ve been pondering on a new build idea and put this together last weekend to see what kind of potential it had as far as top speed (I needed a Nitro fix).
I used some major parts from a previous chassis I built and threw on some (stock, wide rear/narrow front) a-arms and some X0-1 wheels/tires and set the suspension up really low.

I did a few test runs yesterday after I got it fully assembled with a GPS on board with a .28Nova, ERCM pipe, and 3 speed transmission with 18CB and 27T spur.
On the 2nd run I beat my prior best top speed in a maxx platform by several mph and the engine had a little more grunt left for taller gearing.

I’ve decided I’m going to go forward with the build and order the aluminum to make a custom length chassis and keep most of the other components as off the shelf parts and make a T or S Maxx for the street and see just how fast I can make a Maxx platform go.

I will continue to update throughout the winter as the build takes shape.

 

[jerzey10]

What kind of speeds r u seeing?

 

[2revo1maxx]

What ever happened to your other high speed project Snook?

 

[Snook Man]

Above 60, but still under 70mph.
If I can’t break the 70mph mark with a custom lightweight build it will be a disappointment.

Still working on the other project. I just thought why not have 2 high speed rigs to run on the same air strip.

 

[Mn Monster]

looking sweet as always Snook !

 

[hotrodrob]

sweet,i am looking forward to your new build snook,i like the violator mounted like that

 

[Snook Man]

i like the violator mounted like that

I really like the tank recessed like that. With the fuel level starting below the HSN inlet the leaning issue at ½ tank or less is really reduced. I used the same idea with this chassis build and kept it up front to help balance the weight distribution.

I have the chassis plates and skids all cut out and mocked everything up to design a set of shock towers. I’ve went through many different shocks to try and find the best setup for this particular build and think I have settled on a set of Ofna LX One front shocks. I can use the Revo variable dampening shock pistons in the Ofna shocks and custom make the towers to fit the slightly longer length compared to the stock shocks. 4 of the front Ofna’s will actually weigh less than 8 of the stock or BB shocks.

Hers some pics of what I’ve go to date.

Front chassis plate and chassis braces.
I designed it so that I can use an upper mounted steering servo on either side (optional) and with a recessed fuel tank in the center. The receiver box can also be swapped out to either side of the front plate. I also made the distance between the front bulkheads wider than stock so that I can fit a hump pack perfectly between them.

The rear plate is pretty straight forward. It’s long enough to mount just about any engine I would want, and a throttle/brake servo can be mounted on either side to allow for a left or right side exhaust.

The skids are a lot longer than stock so it left room for and under mount steering servo that is attached directly to the front skid plate much like an on road setup. The servo horn clears the bottom of the fuel tank by 6mm and I still have full left/right turning radius.

All mocked up RTR without a rear wing, using stock bulkheads and allowing for the new towers it weighs in at just under 7 lbs with a .28 on it.

The wing will add about another 4oz if I decide to use it. I’m trying to design a rear 2 piece shock tower that can be used with or without a rear wing.

I still have a way to go before I can start any real assembly but the major parts are finished but for detail work and a good polishing. I probably won’t even run it until this coming spring anyway so I can take my time with it.

 

[Greywolf74]

Did you build the chassis or did you buy that?

 

[2revo1maxx]

Awesome :OMG:

 

[Snook Man]

I designed and made the top plates and skids. The towers will be a little different than most towers as well.

 

[Greywolf74]

Thats pretty BA! I wish i had the knowledge and the tools to do that kind of work

 

[hotrodrob]

awesome snook,cummin along great,are those front tires more narrow than the rears?also besides the rest of the truck looking sweet how about that pipe?looks ba...s,where on earth did you find that if you dont mind me asking?

 

[Rolex]

Are you kidding me? How did I miss this thread? That's insane!
Keep the pics coming on this one.

 

[Snook Man]

awesome snook,cummin along great,are those front tires more narrow than the rears?also besides the rest of the truck looking sweet how about that pipe?looks ba...s,where on earth did you find that if you dont mind me asking?

The fronts are narrower, X0-1 front and rear tires. The front a-arms (narrow maxx) are also more narrow than the rear (wide maxx). I've run that style setup before on road and it seems to work well. I can always bolt on the wider rear tires on the front if I need more tire width.
The pipe is ERCM. Give Robin a call and he will hook you up!

Are you kidding me? How did I miss this thread? That's insane!
Keep the pics coming on this one.

Bling, Bling

Got a little done with the shock towers. I made them to be versatile with several different shock lengths, and to be as light weight as possible but still have good strength.
They have only 3 shock locations but unlike the stock shock towers the locations offer more adjustment vertically. I can use stock length shocks, front or rear length 1/8 buggy shocks or the UE super shocks and still have good articulation.
The rear wing mount plate is a separate piece that I can easily remove to run without a wing and less drag. I will be adding a couple turnbuckles from the top of the wing stay to the bulkheads to add support when running with a wing.

I tried hard to keep the total weight under 7 lbs but its just not going to happen with a BB engine. Probably 7lb 6oz rtr with a wing and just a tad over 7lb 2oz without.

I’ve ordered all new a-arms, bulkheads, shocks and such for the final assembly, so now I can focus on trimming up the aluminum and polishing while waiting for the order.

Front tower

Rear tower and wing plate.

As it sits, it’s a lot bigger than it looks. (15 ¼ inch wheel base)

 

[DreamMachine]

Out of curiosity, why are you using a smaller diameter wheel when your truck is basically an 1/8 scale. The reason I ask is my truck is basically the same size but I fear that I would loose speed due to the smaller diameter wheels.

 

[Snook Man]

In the past one of my main concerns was always tires and ballooning at high speeds.
Those tires (XO-1) are rated for over 100mph and have pretty decent traction once you get them scuffed in and some heat in them.

I choose them for several reasons. No ballooning at the speed I’m shooting for, and they will also lower the COG and have less rotating mass.

I decided on which wheels and tires I was going to use 1st and then when designing the chassis plate I made sure that I had enough room for the gearing needed to compensate for the smaller diameter tires. Its setup to run 18/28 CB/SG with plenty of room for adjustment if needed.

 

[hotrodrob]

This rig just keeps getting better snook man!

 

[Snook Man]

Thanks man, I've been busy working on it the last few days.
Should have a bunch of updated pics of the progress in a day or two.

 

[Snook Man]

Final mockup is complete…

I had to make more changes due to the slipstream body I’m using. The wing mount I had before would have needed a lot of the rear of the body to be cut away in order to clear the mount. The slip stream body for the E-Revo is designed to go with the Revo wing mount so I reconfigured the rear shock tower and added the Revo mount.
I also made a brace for the large air filter that secures it to the transmission housing.

The contour of the slipstream body hugs the air filter and filter neck almost perfectly. I have the body as low as it can go with only 1 round hole for the engine head, if I want to go any lower I will have to cut away part of the rear window area so that the filter neck will clear.

All that’s left is to tear it down, dye a few more small parts and give it a final polish before assembling with locktite.
Haven’t decided on body paint yet but I’m leaning toward Red, with a few chrome paint accents and lots of stickers. I think I’m also going to get more XO-1 rear tires for the front as the fronts look a little too skinny.
Fully dressed with everything except fuel, 8lbs 2oz. as it sits.
I will take better pics during final assembly.

 

[EXTREME1]

thats sweet can't wait too see some running vids.