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Old 11-20-2005, 03:06 AM   #91
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@sedanfahrer: very well done

@bundy-bear: the lrp z.12r comes with 2 different sized exhaust rubbers to accomodate all types of exhausts. I've personally used Picco, Novarossi, TM and Mielke pipes with no problems whatsoever.
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Old 11-20-2005, 04:12 AM   #92
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Quote:
Originally Posted by burito
@sedanfahrer: very well done

@bundy-bear: the lrp z.12r comes with 2 different sized exhaust rubbers to accomodate all types of exhausts. I've personally used Picco, Novarossi, TM and Mielke pipes with no problems whatsoever.
I sent Bundy-bear a PM saying almost the same thing.

Burito can you please me tell does the crankshaft have different timing in the Spec2 motor.
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Old 11-20-2005, 06:01 AM   #93
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Yes, timing of the crank is different but it's interchangeable with the old crank.
Same goes for the liner, piston and combustion chamber! All different but interchangeable (not with eachother of course as a mix, but as a general replacement).
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Old 12-13-2005, 02:40 AM   #94
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Default lrp z12r tuning

Just ran my new lrp spec 2 in our local club race.. g8 motor.

Kept it quite rich on the top end 5.5 turnd out but when it got warm.. after 5 min of running it started 2 sound lean (revs staying up) as i backed off for a corner. i think the bottom end needle was around 5 out. Could i have this wrong in that the bottom end should be much richer and top could be leaned alittle more.

using 16 % fuel.

Any help would be apprieciated

Thanks
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Old 12-13-2005, 02:54 AM   #95
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@prg;
Yes, try to richen to bottom end needle.
In general, if the engine does not keep itīs tune and starts to lean out after a few minutes of racing, the bottom end needle needs to be richened. That happens quite often and it is always the first thing, what I ceck, when tuning the engine.

You tend to lean out the bottom end during static setup of the carburetor. In most cases, the engine has not warmed up completely (including chassis and all other aluminum parts) thus it is changing its tune during driving.

If the engine is still cold or it was only warmed up in the pits, then I usually set the bottom end a tiny bit too rich in order to compensate the above behaviour.

Hope that helps.

Best regards,
Andy
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Old 12-13-2005, 03:00 AM   #96
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I think maybe if you tune the motor with around half a tank or less, with the engine completely upto temp you may find the engine holds a tune better.
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Old 12-13-2005, 05:13 AM   #97
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Default lrp engine tune

Thanks for your help..

It was a hot day with air temp in mid 30's so during the race we tried to richen the top end however the motor flamed out as i exited the pits. set it back to where it was and re started. I did read in previous msg's that they may perform better with a richer bottom end
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Old 01-10-2006, 05:57 AM   #98
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Burito,


Can you talk a little about the .18S Pro engine ? ... i need references for a couple of guys who race small block monster trucks (Revo's and Tamiya TNX's) ... would be a good contender v/s .18 TM, and .18 TZ's ? ...

thanks in advance,

Pat
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Old 01-10-2006, 06:07 AM   #99
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LRP Z.18S Pro engine is side-exhaust, I think you're looking for a rear exhaust race engine. right?
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Old 01-10-2006, 11:27 AM   #100
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Quote:
Originally Posted by burito
LRP Z.18S Pro engine is side-exhaust, I think you're looking for a rear exhaust race engine. right?
The .18 its side exhaust, so its a direct fit on a Tamiya TNX PRO right ? ...

I need to get maximum info about this engine ...

thanks,

Pat
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Old 01-10-2006, 01:20 PM   #101
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Check our new product section first, which you find here: http://www.lrp-electronic.de/e/lis/

Let me know if you'll have any additional questions.
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Old 01-10-2006, 03:42 PM   #102
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Quote:
Originally Posted by burito
Check our new product section first, which you find here: http://www.lrp-electronic.de/e/lis/

Let me know if you'll have any additional questions.


Thanks for the link ... i think that the .18 engine its what i need ... but i do need SLEEVE carburator, and ou have just barrel one ...
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Old 01-11-2006, 01:18 AM   #103
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You can use the slide carburator from the Z.12R Race (not Team!) on the Z.18S Pro, that will work and it's not an expensive item.
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Old 02-01-2006, 08:41 AM   #104
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Hai Reto!! any performance LRP pipe product coming out?.Still 5mm is the best especially during final,my refueling is 8 min.Any suggestion to increace acceleration?Top speed really fast.Any tip centax adjustment for mtx4?Thanks Reto,
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Old 02-01-2006, 11:23 AM   #105
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Hi afiq,

Iīm not Reto, but I think I can help you aswell.

As a matter of fact, we are in the final stages for a new LRP 1/10 Competition pipe including a proper manifold. The pipe is finished, but we still need to do some tweaks to the manifold.
We are aiming on April as official release date.

To get more bottom end power, try to richen the bottom end needle about 1/4 to 1/2 of a turn. If this doesnīt help, try to get your hands on a Picco 2607 pipe incl. conical header. This is the one we have been using the whole season and it fits perfectly to the timing of the Z.12R engine.

Cheers
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