13LikesMurnan Modified Motors
10-05-2005, 04:50 AM
#526
Originally Posted by Grinder
The Mega ZX12 has great bottom end power, the most I have seen from a stock engine. The problem I had was it was almost impossible to keep it tuned, and it blew a rod within 2 gallons ( I hear this was longer than ususal). I never checked the head clearance, but I added one .10 mm shim to the engine before I ran it, seemed to work fine. The .21 Mega is slow and fragile.
Jrabbito I also modify .21 engines. I've done a few.
Look, I got the power.
Jrabbito I also modify .21 engines. I've done a few.
Look, I got the power.
Edward from Palmaris is making his own rods for the Picco-based .12's now.
The rods I got from him for my NR engines are holding longer than the P/S sets.
I'm still running one that he put in my NSR in Ft.Myers in 2004!!!
This and a Nova carb should make especially the new LRP spec 2 a viable engine...
10-28-2005, 07:32 AM
#528
Hi Uriah,
Some time ago (05-23-2004) you posted this (edited):
How does the Mugen pipe compare to the Skyline VR12 i see you are using now?
AFM
Some time ago (05-23-2004) you posted this (edited):
Originally Posted by Grinder
I have found that the best pipe is the Shimo one piece Mugen Pipe (P1002) with conical header, I think they are the strongest throughout the entire powerband of the pipes I have tried.
AFM
10-28-2005, 12:02 PM
#529
Originally Posted by afm
Hi Uriah,
Some time ago (05-23-2004) you posted this (edited):
How does the Mugen pipe compare to the Skyline VR12 i see you are using now?
AFM
Some time ago (05-23-2004) you posted this (edited):
How does the Mugen pipe compare to the Skyline VR12 i see you are using now?
AFM
11-23-2005, 06:56 PM
#530
Tech Adept
Grinder sent you a P.M.
11-24-2005, 06:02 AM
#531
Originally Posted by Grasshopperr
Grinder sent you a P.M.
11-24-2005, 08:14 AM
#532
Tech Adept
Happy Thanksgiving to you to Uriah and everyone else who reads this.
11-24-2005, 08:52 AM
#533
Originally Posted by Grinder
Hi. The modified TZ is almost as fast as the Nova and Sirio, but not quite. Seems to lack the top speed of the Italian engines.
Rody, about the long stroke. I can't seem to get the power that I want out of the long stroke. I have been testing the engine for a few months now, and the short stroke (LS) is faster on the track than the long stroke, I tested stock and modified with the same results (short stroke faster). I tested the Rex LR3 which is the same as the N12LL3. The engine is supposed to have more "bottom end", but I can't seem to find it. The engine is not slow by any means, just not modified LS fast or Evo3 fast. I will say that the long stroke powerband feels more linear than the shorter stroke engine.
Rody, about the long stroke. I can't seem to get the power that I want out of the long stroke. I have been testing the engine for a few months now, and the short stroke (LS) is faster on the track than the long stroke, I tested stock and modified with the same results (short stroke faster). I tested the Rex LR3 which is the same as the N12LL3. The engine is supposed to have more "bottom end", but I can't seem to find it. The engine is not slow by any means, just not modified LS fast or Evo3 fast. I will say that the long stroke powerband feels more linear than the shorter stroke engine.
bore and stroke are the same as the previous NS and NSR series (or RE and RER for the ReX line)........
basically the engine is pretty much the same as the older RER12 but much more stable and it usually reaches its optimum performance at 100~110ºC.....the new cranckcase made a good difference through out a 30~60min race........
11-25-2005, 06:15 AM
#534
Originally Posted by SalvadoriRacing
the LR3 engine is the same as N12LS3..........
bore and stroke are the same as the previous NS and NSR series (or RE and RER for the ReX line)........
basically the engine is pretty much the same as the older RER12 but much more stable and it usually reaches its optimum performance at 100~110ºC.....the new cranckcase made a good difference through out a 30~60min race........
bore and stroke are the same as the previous NS and NSR series (or RE and RER for the ReX line)........
basically the engine is pretty much the same as the older RER12 but much more stable and it usually reaches its optimum performance at 100~110ºC.....the new cranckcase made a good difference through out a 30~60min race........
11-25-2005, 07:50 AM
#535
Originally Posted by Grinder
The Rex LR3 engine is actually long stroke. At least the one I have. It is the same as the Novarossi N12LL3. The Bore on the LR3 is 13.70 stroke is 14.25. On the NS12S3 the bore is 13.80 stroke is 14.04. which is the same as the N12LS3, I have them all.
11-28-2005, 02:27 AM
#536
uriah, the red thing in my crank shaft came off. what is it and where can i buy it? thanks for the info:
11-28-2005, 09:01 AM
#537
hey dude,
the red thing on the crank shaft is a special epoxy material used help the fuel flow better in the motor. unforunately, you can't replace it or buy it.... you will need to buy a new crank shaft for the motor.
the red thing on the crank shaft is a special epoxy material used help the fuel flow better in the motor. unforunately, you can't replace it or buy it.... you will need to buy a new crank shaft for the motor.
11-28-2005, 12:33 PM
#538
Originally Posted by sKiMpYbOy
hey dude,
the red thing on the crank shaft is a special epoxy material used help the fuel flow better in the motor. unforunately, you can't replace it or buy it.... you will need to buy a new crank shaft for the motor.
the red thing on the crank shaft is a special epoxy material used help the fuel flow better in the motor. unforunately, you can't replace it or buy it.... you will need to buy a new crank shaft for the motor.
Oh and make sure you let it cure for at least 24 hours before you re install the crankshaft.
11-28-2005, 12:38 PM
#539
Originally Posted by rowveg36
uriah, the red thing in my crank shaft came off. what is it and where can i buy it? thanks for the info:
11-28-2005, 01:34 PM
#540
yes, it is a mugen x12 that i bought from you. used it last paris racing here in las vegas.