Kyosho Inferno GT/GT2 - Page 29

StevePond · #**701** 08-24-2006, 11:37 PM

Bill, we have the new carburetor needle for the engine. The following picture shows the original needle on the right and the new one on the left. The O-ring will be the same, but the area of the main needle where the O-ring seats is 3.7mm in diameter, up from 3.3mm. This will create more of an inferference fit between the O-ring and the housing, which should do a much better job of keeping the needle in place. I'd like to have you try it - if you have the time, email me your contact info at sales@kyoshoamerica.com and I'll send one to you.

GCMustang - we sent your radio back, so please let me know when you receive it. I'm giddy like a little kid waiting to hear the result of your maiden voyage. I'm hoping it runs strong and starts easily like it should. Just be careful to keep the mixture rich enough. If it's running really well when it's cold, richen 'er up because the engine will start to get too hot. You'll know it's getting on the hot side when the blue anodizing starts to turn purple.

StevePond · #**702** 08-24-2006, 11:50 PM

Here's a picture with the O-rings installed. You can see the one on the right (OK, I switched them) is the new needle because of the position of the O-ring.

GCMustang · #**703** 08-25-2006, 07:31 AM

Quote:

Originally Posted by StevePond

Bill, we have the new carburetor needle for the engine. The following picture shows the original needle on the right and the new one on the left. The O-ring will be the same, but the area of the main needle where the O-ring seats is 3.7mm in diameter, up from 3.3mm. This will create more of an inferference fit between the O-ring and the housing, which should do a much better job of keeping the needle in place. I'd like to have you try it - if you have the time, email me your contact info at sales@kyoshoamerica.com and I'll send one to you.

GCMustang - we sent your radio back, so please let me know when you receive it. I'm giddy like a little kid waiting to hear the result of your maiden voyage. I'm hoping it runs strong and starts easily like it should. Just be careful to keep the mixture rich enough. If it's running really well when it's cold, richen 'er up because the engine will start to get too hot. You'll know it's getting on the hot side when the blue anodizing starts to turn purple.

Thanks, man. Any chance you threw one of these new needles in there for me as well? Right now I'm using a slightly oversized o-ring as a band-aid, but they get chewed up after tweaking them a few times.
I've already taken her on the maiden voyage and she's running fast as hell! You're right about it running hot (cooling head turned purple after only 5 mins). I richened up the HSN 1/4 turn and it still seemed to run pretty warm so I ordered an IR Temp gun. Just arrived last night so I'll see what the temps actually are (and all of this is still without the body). What would you say is a safe upper limit, for temps?
I'll try and get my wife to shoot some video as soon as I repair this shock tower I broke in a nasty jump and subsequent flip.

StevePond · #**704** 08-25-2006, 09:17 AM

I'll send you one of the needles. good to hear that you got the radio and that the engine is running well for you. The engine in the GT runs in a fairly normal temp range, so I'd say that in average conditions it should be around 230. The upper limit should be about 270, which is about the point at which the head will begin to turn purple.

GCMustang · #**705** 08-25-2006, 09:21 AM

Quote:

Originally Posted by StevePond

I'll send you one of the needles. good to hear that you got the radio and that the engine is running well for you. The engine in the GT runs in a fairly normal temp range, so I'd say that in average conditions it should be around 230. The upper limit should be about 270, which is about the point at which the head will begin to turn purple.

Ok, then I definitely need to give it a little more fuel. The head definitely starts to turn purple at the settings I am running right now. I gotta wonder - is this color change a happy engineering accident, or was the anodizing selected for this purpose? Seems to be a fairly reliable metallurgic indicator, even though the color change is somewhat slight.

StevePond · #**706** 08-25-2006, 10:27 AM

the color change is definitely not intentional, but a simple and convenient way to know if you're getting the engine too hot. Although unintentional and probably not too accurate, it's pretty obvious when it happens. I always suggest that everyone tune for performance, so always let that be your first indicator. If it's running strong and doesn't fade when the engine warms up, you're in good shape. If it does fade as the engine heats up, you're too lean.

xrcist2 · #**707** 08-26-2006, 07:01 AM

Steve can the inferno gt run in a pond?

StevePond · #**708** 08-26-2006, 12:17 PM

Bwahahahahahahaha...... hahahaha.....ha.

xrcist2 · #**709** 08-26-2006, 07:41 PM

If I replace every part with like $1000.00 worth af aluminium upgrades will it make it faster? Or will it make it get hit by lightning? Is the gray aluminium parts faster than the blue ones? Which fuel is most likely to explode when smoked?

StevePond · #**710** 08-27-2006, 05:13 AM

Is this another joke, or is this turning into thread crapping? Just checking...

xrcist2 · #**711** 08-27-2006, 06:31 PM

Thread crapping.

GCMustang · #**712** 08-27-2006, 07:13 PM

Man, I just had a blast running three nearly consecutive tanks of fuel through the GT. First run wasn't so great. Power was fine off the line, but lame at high revs. The McCoy #8 plug I was running was brown with residue from running rich in the opressive summer heat so I switched back the Kysho plug and the car ran awesome. Brutal acceleration and nice top speed.
It was consistently running in the 260F region, though. Well, this according to the Dynamite IR Temp gauge set at an emissivity of 77. The head was definitely starting to turn purple, but if I richened it any further, it would lose power and want to stall on throttle. I'm at 3 1/4 turns out on the HSN.
Oh, and this was all running without the body. I can only imagine how hot it would run with it on!

This was also my first run with a home-made carbon fiber disc brake. Weak at first, but once it warmed up, what a difference! Killer brakes that never faded, run after run. I just traced the factory disc onto a piece of .140" carbon fiber sheet and cut it out with a dremel.

StevePond · #**713** 08-27-2006, 07:53 PM

GCMustang, it sounds like a perfect setting on the mixture. If the performance suffers when you richen it, then I'd say keep that mixture setting. Don't worry too much about the head color... that's just a general thing to watch, and possibly not reliable in hot weather conditions where the running temp of the engine is going to be higher. BTW - don't worry about the emmisivity setting on the temperature gauge. Emmisivity is reflected radiation from light sources, such as the sun. But, when you place the tamperature gauge into the glowplug opening and effectively block all potential sources of radiation, emmisivity is not an issue. I was told this by an Exergen engineer, who makes some of the best temp sensors in the world.

PS - I'm happy to hear that you're having fun with the car.

StevePond · #**714** 08-27-2006, 07:55 PM

Quote:

Originally Posted by xrcist2

Thread crapping.

Why would you want to do this?

xrcist2 · #**715** 08-27-2006, 09:39 PM

Your the one that said that word?

StevePond · #**716** 08-28-2006, 12:43 AM

Sorry, maybe you're not familiar with the term. Thread crapping is a common net term for a series of off-topic posts that are intended to "trash" a thread. I have a pretty good sense of humor sometimes (at least I like to think I do) so I wanted to be sure of your intention. Now that we've had a good laugh,

I'll get back to helping out where I can.

P.S. I just bought a set of GRP spoked Rally tires/wheels, so when I get a chance to run them, I'll give you guys some feedback on the tires. My first impression is that they're pretty hard compound rubber, so traction may not be ideal, but I'll reserve final judgement until I get some miles on them.

GCMustang · #**717** 08-28-2006, 07:26 AM

I've had my eye on those GRP tires as well. Rumor is that you need to warm them up to get grip out of them, which helps make them a long-wearing compound.

xrcist2 · #**718** 08-28-2006, 09:47 AM

Quote:

Originally Posted by StevePond

Sorry, maybe you're not familiar with the term. Thread crapping is a common net term for a series of off-topic posts that are intended to "trash" a thread. I have a pretty good sense of humor sometimes (at least I like to think I do) so I wanted to be sure of your intention. Now that we've had a good laugh,

I'll get back to helping out where I can.

P.S. I just bought a set of GRP spoked Rally tires/wheels, so when I get a chance to run them, I'll give you guys some feedback on the tires. My first impression is that they're pretty hard compound rubber, so traction may not be ideal, but I'll reserve final judgement until I get some miles on them.

For a customer service rep you sure are easily challenged, opinionated and confrontational! Or atleast thats what great planes said.

StevePond · #**719** 08-28-2006, 10:10 AM

LOL! It's good to know you're discussing it with Great Planes

. I'm not a customer service rep, but since you're feeling so "confronted," I'll refrain from replying to your curious posts and let the forum operators decide if you're being a productive part of the discussion. I honestly don't know if you're just joking around, so I figured I would ask to clarify and not make any assumptions. I'm sorry if that offends you, it is not my intention.

StevePond · #**720** 08-28-2006, 10:11 AM

Quote:

Originally Posted by GCMustang

I've had my eye on those GRP tires as well. Rumor is that you need to warm them up to get grip out of them, which helps make them a long-wearing compound.

That's why I'm thinking they might be a good replacement tire - it looks like they might last quite a bit longer than the stock tires.

Philster · #**721** 08-28-2006, 12:35 PM

I actually like the stock tires. When they warm up they are pretty decent. Other than the microfilm profile, I like them.

xrcist2 · #**722** 08-28-2006, 03:27 PM

Quote:

Originally Posted by xrcist2

For a customer service rep you sure are easily challenged, opinionated and confrontational! Or atleast thats what great planes said.

Not about you mr pond, about why they quit distributing kyosho. Bad customer service.

StevePond · #**723** 08-28-2006, 09:55 PM

Fair enough, but they were responsible for customer service then, and that's why we're here - to improve availability and customer service.

Philster, agreed but I don't let off the throttle too often, which doesn't make for a long lasting tire.

I just want to see what else is out there and how it works in the grand scheme of things. Have you had a chance to try any aftermarket tires, or are you just sticking with the stock ones?

GCMustang · #**724** 08-29-2006, 04:37 PM

I'm really not disappointed with the stock tires, either. For clean pavement, at least (agree with Philster that they're essentially slicks with cosmetic treads). I do tend to let up on the throttle on occasion, though. LOL

Check out the carbon fiber shock tower I fabbed up after I cracked the stock one during a flip..

Hey Steve, just let me know when Kyosho wants to start placing orders with my Dremel, hehe.

xrcist2 · #**725** 08-29-2006, 08:05 PM

Here are 5 additional bodies available from ofna for the inferno gt for anyone new to the forum. Specifically new member ken marc.