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Old 07-14-2009, 09:27 PM   #1
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Default Ofna Picco/Jlr .12 EVO 3 RED DOT

Hey, I would like to know what are the factory carb settings for this engine
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Old 07-16-2009, 11:58 AM   #2
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Hey, I would like to know what are the factory carb settings for this engine

The factory settings of the engine are as following and are a good starting point for you. Turn in the needles completely (Caution: Do not
over tighten them!) and loosen them the required number of turns:

Idle screw: Should be open 0.5-1.0mm.

Low speed needle: Should be open: 6,75 turns

High speed needle:Should be open 5,00 turns

CARBURATING PICCO ENGINES
Engine works better on the rich side (HSN) and normally needs more than a couple of laps to reach the operational temp. Start on the rich side (HSN) and after 4 or 5 laps tune the engine. Doing this process on the bench (or starter box) normally overheats the engine driving you to a wrong tuning and maybe causing a damage. Set the engine a little bit rich (if you progressively open the carb, the engine responds quick but at 3/4 rpm becomes rich (not really 4 stroking but rich) Then at the track after several laps (at least 5) if the engine is still rich lean it.

Regarding LSN, Run the LSN a little bit on the rich side and still keeping the engine with a good idle (Very low rpm idle, is better for fuel consumption and handling of the car after off throttle).
After pre-heating the engine, just pinch the fuel line and if the rpm remains the same for 4 to 5 seconds and then the engine revs up and shuts off, that’s the best setting for a large track with long straight away. If the track is really short, and full of hairpins, LSN needs to be more lean, because the engine never revs up for a lot of time, and so if you keep the same setup described before it is always rich out of the corner.

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Old 07-17-2009, 10:40 AM   #3
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Sweet!.. Can't wait for the weekend..
Thanks.
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Old 07-21-2009, 03:46 PM   #4
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Guys,

Can you give me the info on bearing sizes for this engine ?, i have a red dot .12 jlr that needs new bearings,

thanks,

Pato Concha
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Old 07-21-2009, 04:12 PM   #5
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Guys,

Can you give me the info on bearing sizes for this engine ?, i have a red dot .12 jlr that needs new bearings,

thanks,

Pato Concha
Southamerica
Pato

Inside bearing 12 x 21 x 5mm MR6801-TH9/C3 (you can use from OS TZ engines)
Front bearing 6 x 16 x 5mm MR616ZZ (any picco based engine like the Mega)

Un Abrazo
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Old 07-21-2009, 10:14 PM   #6
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Pato

Inside bearing 12 x 21 x 5mm MR6801-TH9/C3 (you can use from OS TZ engines)
Front bearing 6 x 16 x 5mm MR616ZZ (any picco based engine like the Mega)

Un Abrazo
AFM


Wow my old master helps me again !!

Gracias amigo !!

Pato Concha
Southamerica
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Old 07-22-2009, 10:25 AM   #7
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What are the differences between this engine and the Off-Road Red Dot? The local hobby shop has an off-road sitting on the shelf and I was wondering how it would do in an NTC3
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Old 07-22-2009, 10:48 AM   #8
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Default Red dot

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What are the differences between this engine and the Off-Road Red Dot? The local hobby shop has an off-road sitting on the shelf and I was wondering how it would do in an NTC3
Off road engnes have more torque, while onroad engines have higher rpm.
I have four tuned Red dots, and with the correct pipe, they run great.
Dont waste your money on an off-road engine even though it would fit the car.
Pick up the tuned Red Dot, pipe and header.
The NTC3 will scream with that combo.
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Old 07-23-2009, 03:10 PM   #9
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What pipe+manifold would you recommend for JLR?
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Old 07-24-2009, 12:02 AM   #10
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Default Tapered collet

I picked up one of these motors (used) and it did not have the tapered collet (where the flywheel attaches to). I am having trouble trying to locate one as it is not a standard size. It looks like it maybe 1/4 inch as 6mm is a bit too big.
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Old 07-25-2009, 09:47 PM   #11
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The reason I asked about the off-road version is my LHS had one on the shelf. I've been looking to down-up-grade from my OS 18CVR which just doesnt rev very fast for desent acceleration. The choices at the LHS were this off-road version or an OS 12TZ, which was $50 more. I decided to get the off-road Red Dot and so far I am loving it in the NTC3. Insane power, awesome acceleration, and our track really isnt even big enough for its power band, which is easily solveable by gearing. I may have the LHS order the on-road version and put the one I have now in my RC10GT for the dirt track.
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Old 07-26-2009, 05:01 AM   #12
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What pipe+manifold would you recommend for JLR?
get the picco 2607 pipe with matching manifold!
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Old 07-26-2009, 06:25 AM   #13
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Quote:
Originally Posted by Andrew Barr View Post
I picked up one of these motors (used) and it did not have the tapered collet (where the flywheel attaches to). I am having trouble trying to locate one as it is not a standard size. It looks like it maybe 1/4 inch as 6mm is a bit too big.

http://www.nitrohouse.com/catalog/pr...ducts_id=12965
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Old 07-26-2009, 11:50 AM   #14
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the picco 2607 pipe is discontinued.. get the picco 2651.. kamikaze has them
if you can't manage to find a 2607 that is..
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Old 07-26-2009, 02:11 PM   #15
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Questions??

Thanks guys!
And what du think about 2652 from novarossi?
Has anybody tried it with JLR?
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