Kyosho Superten GP's and FW-04 - Page 5

Dan H · #**101** 11-09-2002, 09:02 PM

Hi, guys, I've finally registered but been reading up on this forum for a while. I own a 4 stroke FW04 by the way.

Anyways, my track has moved to a new location and is setup much larger. Having run on a smaller track where the 4 stroke really shines, the larger track made my FW04 get outpaced by the 2 strokes.

So...I was wondering what parts and header I need to do put a BB .15 in it. I have a spare NovaMega SX .15 lying around and could use the extra top end. Thanks, your help is greatly appreciated.

nolanfarmer · #**102** 11-09-2002, 10:28 PM

Dan, did you install a two speed and are you using the Wildcat four stroke 20% fuel?

Dan H · #**103** 11-09-2002, 10:33 PM

Yes, I have a 2 speed but I'm using regular Wildcat fuel. Does the 4 stroke fuel help a lot?

nolanfarmer · #**104** 11-09-2002, 11:00 PM

Oh man, nobody seems to know that the wildcat fourstroke fuel makes the thing run a lot cooler. It smokes a lot but you get a lot more torque to make good use of that 2-speed. You will get much better top end speed.

Dan H · #**105** 11-10-2002, 01:11 AM

Thanks! I'll have my LHS order some 4 stroke fuel for me and see how my top end goes. I hope its significat since I'm topping out a little more than halfway through the straights.

Mika · #**106** 11-12-2002, 06:45 AM

Has anyone of you 4-stroke guys changed rings for the FS-26S-C ? It uses them, right?

Or any other parts like piston and sleeve ? In the end of the summer I felt I was loosing power from both of them. I wonder what kind of maintenace should I do.

nolanfarmer · #**107** 11-12-2002, 09:45 AM

My first .26 was run hard on and off road and with a good part of its life using the regular 2-sroke fuel. It got damn hot a few times and started loosing power(or visa versa). To my amazement it only needed a new exhaust valve because its seat was not properly machined and it had beaten the edge down to paper thin. I also saw that that the exhaust valve spring was shorter than the other so it had lost a lot of its tension from being on the hot side of the head. I replaced both springs along with the one valve and its compression seems as good as my newer one.
This is one tough little motor.

Mika · #**108** 11-12-2002, 01:54 PM

Thanks Nolan! I've played with the valves a bit, but saw (back then) no changes. I'll check it again. The changes in the power were not that drastic but enough to feel nevertheless, which I'd like to get rid of course.

StevePond · #**109** 11-12-2002, 02:08 PM

Wouldn't it be cool to have optional camshafts?!

nolanfarmer · #**110** 11-12-2002, 02:40 PM

Hey Steve!
Oh God! Four Stroke hop up parts like titanum headers, big bore kits, cam shafts, exhaust systems......................

I was looking at the new OS .30 airplane engine and it looks like you could use the cylinder, piston and rings, along with the new crankcase if the .26 one dosen't work.

Whadaya think?

Dan H · #**111** 11-12-2002, 03:04 PM

Haven't changed a ring yet. Combined with a steel sleeve, these engine should last for a very long time. Still needs a good long break in though.

How long did you have your 4 stroke engine? Is your low end still as good but your top end is bad? If so, change the valve springs. One other guy I know with a 4 stroke had this problem. It will cause "floating" at high RPM's. This even happens to 1:1 cars if the valve springs need replacing.

Steve, I'd love a high profile cam.

Lose a little torque but gain more top end. Maybe some variable valve timing. Haha

StevePond · #**112** 11-12-2002, 04:52 PM

Quote:

Originally posted by nolanfarmer
I was looking at the new OS .30 airplane engine and it looks like you could use the cylinder, piston and rings, along with the new crankcase if the .26 one dosen't work.

Whadaya think?

I know both engines are built using the same basic engine block and other related parts, but I haven't seen a .30 yet to see if the parts are interchangeable. I'll check it out as soon as I see the engines side-by-side.

Dan, how bout a litte VTEC action on the FS engines?!

Mika · #**113** 11-13-2002, 04:11 PM

Quote:

Originally posted by Dan H
Haven't changed a ring yet. Combined with a steel sleeve, these engine should last for a very long time. Still needs a good long break in though.

How long did you have your 4 stroke engine? Is your low end still as good but your top end is bad? If so, change the valve springs. One other guy I know with a 4 stroke had this problem. It will cause "floating" at high RPM's. This even happens to 1:1 cars if the valve springs need replacing.

Steve, I'd love a high profile cam. Lose a little torque but gain more top end. Maybe some variable valve timing. Haha

Ok, thanks Dan. I run these around 5-6 months (I've got 2 of them in 2 cars). Yeah, I think it's the top-end. Nothing wrong with the low-end. Maybe I get some new springs from the Tower. But now I got .15 RX on the other, I'll test it first

If you are cusrious, check my homepage

Dan H · #**114** 11-13-2002, 11:11 PM

Steve, keep us updated on the .30.

Mika, nice!

BTW, can you tell me what parts and header I need to put a BB .15 in my FW04? Thanks!

Mika · #**115** 11-14-2002, 05:44 AM

Thanks Dan. This is the .15 BB from Tower, right?
They say it uses the same mounting as O.S. CV. In fact, I've got the CV Hyper, which installation to FW04 was very strainghtforward - at least with the FZW-56 2-speed, which is a must-have for the FW04 anyway.
If you want to get hop-up parts to do that, you could use
- Kyosho 2-speed tranny FW-04 (FZW56)
- Kyosho Vespal Clutch Shoe SPG10
- Kyosho Special Tune Muffler Set SPGP10
- Kyosho Special Mount SPGP/Pure Ten
I think that's it. The names are the ones that Tower Hobbies use (I don't have the item codes here).

Dan H · #**116** 11-17-2002, 07:05 PM

Sorry for the late reply. I'm talking about my big block .15 rear exhaust. Its a NovaMega SX .15.

I have the 2 speed tranny and vespel clutch upgrade already but when I check the special tuned pipe set, its for side exhaust. So all I need is the special engine mounts?

Mika · #**117** 11-18-2002, 07:46 AM

Allright, BB translates to Big Block, I see.
I bought the Kyosho pipe and exhaust header/manifold for RX, I'm not sure if they're the best ones you can buy. Anyway Tower parts are:
- Kyosho Tuned Muffler III SuperTen GP (#39416)
- Kyosho Manifold OS .15RX/SuperTen GP (#39521)
And the engine mounts are (they also fit to Picco):
- Kyosho Engine Mount OS15RX/SPG10 (#39522)
These are also the items that Tower advises to use for the O.S. RX engine and Picco engines. Can't say if they fit to NovaMega.
Hope this helps!
BTW, I work for a US based company here in Finland, the headquarters is located is San Jose, Sunnyvale. I wish I could visit there sometime and see you guys running in the local track! Would be cool

, ha!

Dan H · #**118** 11-18-2002, 06:08 PM

Thanks! That list was much more helpful!

If you do happen to visit, stop by and check it out.

We have a good number of FW04's and SNRS4's in the Super10 class. Even 1 or 2 TGR's too.

Mika · #**119** 11-19-2002, 03:53 AM

Dan, good! Let us how the installation went after you have it done. Thanks! Btw, I ordered the new valve springs for the FS.

heuerfan · #**120** 11-20-2002, 01:10 PM

Hello everyone. Does anyone have a copy of the instructions for the cooling fan or know where i can download it? I would like to install it onto my FW04.

Thank you in advance.

Jimmy33 · #**121** 11-22-2002, 03:48 PM

Hi, I have a Superten now, and I am wondering is the two speed worth it, and how good is the car with a 4-stroke?

Dan H · #**122** 11-22-2002, 04:32 PM

heuerfan, how bad do you need it? If you live in the U.S., I'd be more than happy to send a copy of the instructions to you next week.

Jimmy, 2 speeds are pretty much worth it on almost any nitro car. Can always use the extra speed.

If you run on a small track, the 4 stroke will really shine. Its got gobs of low end torque, fuel efficient, and super reliable but not as much top end. But if you run on a parking lot or larger track, you'll benefit from the higher end 2 stroke engines out there.

Dan H · #**123** 11-22-2002, 04:39 PM

BTW, has anyone modded their 4 strokes? I remember some 4 stroke guys telling me about this.

I didn't care much but when I took apart the 4 stroke engine head, I saw clearly what they meant. After removing the "neck" in between the carb and engine head, the intake hole on the head looks as if it can be enlarged to match the hole of the neck. Anyone try this?

I would imagine it would increase top end dramatically. And just to be safe, richen up the mixture for the increased air. I'm just more worried about the reliability and maybe idle quality. Anyways, I might try this soon.

nolanfarmer · #**124** 11-22-2002, 05:31 PM

I am above 5000 ft elevation and enlarging ports tend to loose too much velosity in the thinner air and does strange things to the powerband. I learned this from building thumpers and superbike engines and found that the guys that left their ports alone, other than smoothing out the imperfections in them, had a more drivable package. But at sea level things may be another story. Please let me know how it works out.
I think I will try the cleaned up porting along with shaving the head for more compression on the new Four Stroke project car I am working on.
I bench tested a strait header exhaust yesterday with a place for a nipple brazed on about half way down the tube. The thing ran well and seemed much more powerful and responsive to trottle imputs. The best part was the sound it makes! There was also the weight savings to top it off. I'll keep everyone posted.

Nolan

Mika · #**125** 11-27-2002, 05:39 PM

Guys, this goes a bit off-topic but what do you think about TR-15 Rally. I know it's not a such high-end rally car like LandMax II, but I find it interesting since it shares a lot of parts with SuperTen, including diffs, the drive train and most hop-ups like the 2-speed.

I've been thinking about getting one for testing and put the FS engine into it with the 2-speed. Anyone has experience on that ? What I'm worried is the engine mounting holes - they don't seem adjustable. I'm not quite sure if you can fit the FS plus 2-speed into it. Can anybody confirm ?

The 4-stroke would be perfect for off-road I think. The car is also a bit smaller than FW-04 being 1/10 and I think it might fly with the FS. Opinions? If I'm gonna get one, the first hop-up I get is the milled hard alu chassis instead of the stamped one. It should give enough rigidity for the 4-stroke (there's no upper deck in TR-15 Rally).