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Running in a motor without a heatgun

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Running in a motor without a heatgun

Old 09-01-2008, 03:25 AM
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Default Running in a motor without a heatgun

I bought an 18TZ for my car and I am thinking how to run it in

I can use a hairdryer but only at home and there is not enough space for me to drive it around too good

I am just wondering, should I just idle the first tank after heating it up?
And then start it cold from there on?
Old 09-01-2008, 04:17 AM
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Default RE: Running in a motor without a heatgun

I've never ever heated a single engine during break-in, and I've broken in quite a few engines from Racing .12s to the biggest truggy .28s.

The heating up is not part of the break in process, it's just to help you start them if your starter box isn't strong enough.

Break-in instructions...

Start it cold, idle it for one tank, keeping an eye on temp (don't let it get over 240, but I doubt it will go much over 160 on break in settings). Now refill and drive it slowly around, lean the needles a touch if it is not getting to 200F. When it gets to 200F, stop it (even if it's only 1/3rd of the tank), and let it cool, then repeat. Do this for at least 3 tanks worth, then start to tune for performance. When it's tuned just take it easy for one more tank (don't do long full throttle runs, but use full throttle in bursts) and then you'll be ready to rip.
Old 09-01-2008, 06:12 AM
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Default RE: Running in a motor without a heatgun

oh ok that's good news for me
I guess I'll just idle the one tank at home where I can heat it up (with a hairdryer ) and then the rest where I can drive it

How many tanks should I realistically go through before I can start thrashing it without hesitation?


And I assume this is the heat cycle method, where I get it up to temp and then shut it down?
And with this, should I avoid lots of throttle, or lots of revs, or both?
ie, should I just keep it under 1/2 throttle but not care how much it revs or should I try and keep revs low as well?
Old 09-01-2008, 06:20 AM
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Default RE: Running in a motor without a heatgun

Until you've got 4 tanks through it, keep it low revs, doesn't matter about throttle, give it full for a half sec if youw ant, but don't let the engine scream. When you've got about 6 tanks through it you're good to go, but it will continue to loosen up until you have 2 liters through it. Yes, this could loosely be described as the heat cycle method, but it's my own personal hybrid of the 'idle on the box' and 'heat cycle' methods.

If you're not confident, follow the instruction that came with the engine to the letter.
Old 09-01-2008, 10:34 AM
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Default RE: Running in a motor without a heatgun

Ok will do

And one last question, what fuel to use?
I have some fuel which is a few months old. It's been stored, closed in the bottle, with little air in it but even though it's been int he basement it got pretty hot there
It's 20% Nitro and 16% oil
Should I run in with low nitro content or just what I plan to use?
Old 09-01-2008, 12:50 PM
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Default RE: Running in a motor without a heatgun

Just use what you plan to use all the time. The fuel you have stored in your basement will be fine if it is stored out of direct sunlight and in a sealed container. Being hot won't hurt it as long as it didn't build enough pressure to blow the lid off and get contaminated. That tz aught to give you some serious rip.
Old 09-01-2008, 01:59 PM
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Default RE: Running in a motor without a heatgun

I am hoping so
I never seen one in real life but from what I read it's a crazy motor
Hopefully I don't break anything
Or crash [X(]
Old 09-01-2008, 02:56 PM
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Default RE: Running in a motor without a heatgun

yes i would like to see one running!! come down to the track one day once you finish break in...
Old 09-01-2008, 04:24 PM
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Default RE: Running in a motor without a heatgun

Now that the weather is getting cooler I will take it down to the track
Old 09-02-2008, 02:37 AM
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Default RE: Running in a motor without a heatgun

hope to see you soon....[8D]
Old 09-02-2008, 05:25 AM
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Default RE: Running in a motor without a heatgun

Well the engine hasn't come yet
So it isn't run in yet
And the car is in pieces
And I'll set it up in a parking lot (make sure everything works well etc)

So, it wont be TOO soon

Either way though I'd say I would go there in the evening on a weekday when there when there's no people

Also, the car doesn't really handle all that well so I think an 18TZ on a track in that car is a waste, I doubt I'll even be able to floor it
Old 09-02-2008, 05:29 AM
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Default RE: Running in a motor without a heatgun

you'd be suprised at the grip level of that track, the car will handle nothing like it does in a parking lot......
Old 09-02-2008, 07:14 AM
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Default RE: Running in a motor without a heatgun

You mean the daytona track?
Well hopefully...

Normally I take to that Makario stadium car park in Engomi (it's near the fair grounds in Nicosia)

Fairly big and empty car park, only problem is it doesn't have lights at night
Old 09-02-2008, 12:16 PM
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Default RE: Running in a motor without a heatgun

hey man, is that were your planing on running in your engine???
Old 09-02-2008, 01:44 PM
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Default RE: Running in a motor without a heatgun

At the car park yes, not the Daytona track though
First tank I will idle at home after using a hairdryer to heat it up

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