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Old 03-25-2004, 09:48 AM   #16
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Default Body and Cooling

Smoke21;

I too use Motor Savers in ALL of my Cars/Trucks.

No problems with cooling except for one, our T-Maxx. The Engine in the Maxx is inline just like your Nitro 3, so this could indeed be blocking the flow of Air over the Cooling Head.

The simple solution is to try a smaller size filter to see if things improve. Otherwise a larger diameter cooling head will help and you MUST richen the mixture.
You could also cut little scoops into the side windows to direct more Air over the Head.
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Old 03-25-2004, 09:56 AM   #17
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I can't beleive some of these responses..

The low end is too lean!!! open the low end 1/4 turn and see what happens...
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Old 03-25-2004, 09:59 AM   #18
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Default Re: Re: Body and Cooling

Quote:
Originally posted by Marcos.S710
your low end neddle might be to lean!


Quote:
Originally posted by Jpilone
I can't beleive some of these responses..

The low end is too lean!!! open the low end 1/4 turn and see what happens...

I know jarrod i gave them the same advised on the 5th posting , they need to tune their motor better right!!
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Old 03-25-2004, 12:53 PM   #19
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Default

a good baseline for the lowend needle on the nova is 3out from
close and start with the main needle 4 out and start messing
with the main needle for power. I know alot of you say that
you shouldn't temp for tuning but at 345 you will end up warping
the sleeve out of circle. So you do need to watch temps to
make sure it stays at a reasonable ammt. not unless you
have money to burn.
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Old 03-25-2004, 12:57 PM   #20
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Quote:
Originally posted by jwf_frani
a good baseline for the lowend needle on the nova is 3out from
close and start with the main needle 4 out and start messing
with the main needle for power. I know alot of you say that
you shouldn't temp for tuning but at 345 you will end up warping
the sleeve out of circle. So you do need to watch temps to
make sure it stays at a reasonable ammt. not unless you
have money to burn.
i agree but it depends on the air in the atmosphere , elevation and temperature(outside) you will get diffenent readings of the same engine
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Old 03-25-2004, 01:00 PM   #21
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Also,

if you're running a hot plug, and it's hot outside, and you're running no extra head shims and are running more than 25% nitro, you're gonna have a hot running engine.

personally: I run a 6 or 7 cold plug (turbo) and have a thin copper shim with the factory shim and run 30% nitro..

My engines usually run a sweet spot around 230-240 deg and I dont cut my side windows out..
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Old 03-25-2004, 08:04 PM   #22
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Default Really???

Guys;

This is somebody who is just having fun running his Car around in the Street or an empty Parking Lot. He doesn't need tuning science 101.

His Engine is running WAY too hot (no one is disagreeing) and will suffer a short life if left in this condition. Since most people new to Nitro tend to tune for maximum power, they also tend to have the Main needle too lean.

Adjusting the main needle is the quickest, simplest way to get things more inline with where they should be.
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Old 03-25-2004, 08:19 PM   #23
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Default Lean low end

1 question pls.

How do we tell that our engine are running lean on the LSN.

Thanks.
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Old 03-25-2004, 08:52 PM   #24
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Default Low end lean

A very generic way to tell if you are rich or lean on the low end needle is, after setting the high end nedle, do a few high speed passes then pinch the fuel tube as close as possible to the carb.

The motor should run for 2-3 seconds rev slightly faster then quit.

If it runs longer than three seconds it is probably to rich. If it quits right away it is too lean, or only runs for 1 1/2 to 2 seconds and does not speed up before quitting, it is probably also a little too lean.
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Old 03-25-2004, 10:22 PM   #25
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The first thing I am going to do is richen the LSN to Factory and the hsn a little more, run it monitoring temp with and without the body, if it still is that drastic I will move the filter to the side and see, if nothing I will richen more, I would have done this but it was raining today and I had too much homework on wendsday, thanks for the help I am still guessing it is the filter, my LSN is no more than 3/8 from factory and a temperature change that drastic ONLY from putting the body on is unreal for 3/8 lean on Low end after all I was blasting it w/ the body off and running 283.2 and it went down after letting it idle for a while
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Old 03-25-2004, 11:16 PM   #26
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Quote:
Originally posted by Smoke21
The first thing I am going to do is richen the LSN to Factory and the hsn a little more, run it monitoring temp with and without the body, if it still is that drastic I will move the filter to the side and see, if nothing I will richen more, I would have done this but it was raining today and I had too much homework on wendsday, thanks for the help I am still guessing it is the filter, my LSN is no more than 3/8 from factory and a temperature change that drastic ONLY from putting the body on is unreal for 3/8 lean on Low end after all I was blasting it w/ the body off and running 283.2 and it went down after letting it idle for a while
WHAT % FUEL ARE YOU RUNNING?
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Old 03-26-2004, 05:41 PM   #27
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20% OK I think I have got it, it is a combonation of 1. To lean low end(it was far leaner than I thought) 2. The filter was blocking a Large part of the head. and 3. because the low end was so lean the Idle was too low.

OK today I put my car on the stand, set all the settings to factory, I fired it up, to my surprise it fired within 4 hits of the rotostart. I gunned it, it died, I leaned it out, it purred but the Idle was WAY to low so I turned it up and it idles fine,Although I didn't do any driving or temperature tests so I will do some driving tomarrow and see how it goes.

Thanks for all the help guys
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Old 03-26-2004, 10:29 PM   #28
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Quote:
Originally posted by Smoke21
20% OK I think I have got it, it is a combonation of 1. To lean low end(it was far leaner than I thought) 2. The filter was blocking a Large part of the head. and 3. because the low end was so lean the Idle was too low.

OK today I put my car on the stand, set all the settings to factory, I fired it up, to my surprise it fired within 4 hits of the rotostart. I gunned it, it died, I leaned it out, it purred but the Idle was WAY to low so I turned it up and it idles fine,Although I didn't do any driving or temperature tests so I will do some driving tomarrow and see how it goes.

Thanks for all the help guys
let us know!!
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Old 03-26-2004, 10:41 PM   #29
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Default hot!

Has anyone addressed the clutch issue?
If the clutch comes in too soon it can load the engine and make it run HOT! Its just something else to consider.
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Old 03-27-2004, 10:36 PM   #30
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ok it was tuning and filter, I ran the stock tuning today and leaned out my low and highends(not it that order of course) I didn't do any body tests but with the body off and a cool 63 degrees it ran in the 120 to 180, cold but we'll see, I have 1/2 tank of fuel left, I will get some O'Donnell's 20% which I will have to richen, again...
tomarrow I will run with the body on. Thanks for the help guys.
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