RE: OFNA/Picco .21 RECALL!!  
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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Monster Trucks >> Traxxas Monster Truck forum >> RE: OFNA/Picco .21 RECALL!!
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RE: OFNA/Picco .21 RECALL!! - 3/23/2004 3:47:45 PM   
Deandome



Posts: 1128
Joined: 9/3/2003
From: Libertyville, IL, USA
Status: offline
quote:

ORIGINAL: Conman

I am running the stock clutch, gears and pipe.


THAT'S a problem...maybe THE problem.

The .21s rev a lot lower than the high-strung engines like the 2.5, Sirio & Fantom, but of course, they have loads more torque. So you really HAVE to change the gearing to bring them to the equivilent "power range" of the stock setup (the same "low-end torque vs. top speed" ratio). When we were talking via e-mail, the head guy at Unlimited Engineering (MonsterMaxx) TOLD me I'd need to change my gearing if I get this engine (alas, he even told me a few suggested gear setups, but I deleted the e-mail!!).

I'd imagine the clutch setup might need tweaking too, again due to the different RPMs of the engine types. And lastly, several .21 owners report that you really NEED a good pipe, the stock Maxx pipe doesn't really cut it.

So I'd definitely get a good tuned pipe, change gears, then see how the clutch performs. I think it's clear that you cannot just drop this engine in your truck & expect it to match the power/torque ranges of the stock setup, but when you DO set it up properly, I'm pretty sure you'll be able to get it to do WHATEVER you want (rule at the track, pop wheelies, win a tug-o-war, etc.).

Dean

(in reply to Conman)
       Post #: 51

RE: OFNA/Picco .21 RECALL!! - 3/23/2004 3:53:28 PM   
allen0622



Posts: 689
Joined: 2/23/2004
From: East Windsor, CT, USA
Status: offline 		Are you guys putting in .21 pipes? or aftermarket pipes made for the 2.5?

(in reply to Deandome)
       Post #: 52

RE: OFNA/Picco .21 RECALL!! - 3/23/2004 8:30:41 PM   
caseyddr



Posts: 3918
Joined: 2/17/2003
From: Indianapolis, IN, USA
Status: offline 		you should put on .21 pipes, unless you are using the big bore pipe. the rest are 2 restrictive.

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(in reply to allen0622)
       Post #: 53

RE: OFNA/Picco .21 RECALL!! - 3/24/2004 8:12:34 PM   
GVFD29



Posts: 693
Joined: 12/7/2002
From: Gaithersburg, MD, USA
Status: offline 		I'm using the THS Racing pipe. The stock pipe is a problem...I was losing quite a few plugs and power. Strap on this sucker and away you go.


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Make Life easier...Take a trashbag with you on your walk of shame.

(in reply to caseyddr)
       Post #: 54

RE: OFNA/Picco .21 RECALL!! - 4/19/2004 4:54:55 AM   
mamerican60


 

Posts: 17
Joined: 4/12/2004
From: Noblesville, IN, USA
Status: offline 		Superbike,
Ive had alot of the same trouble you are having with my P2 .21 Picco. Check your back plate, does it have a pressed in rubber seal, also check your crankshaft end play should be very little if it moves in and out very much it may be the same as mine. I took mine back to LHS they agree that there is a defect, mine was leaking fuel from front and back. It was untunable I could not get any low side throttle response then running at about 1/4 throttle it would go lean all of a sudden and flip on its lid.

(in reply to GVFD29)
       Post #: 55

RE: OFNA/Picco .21 RECALL!! - 4/19/2004 5:07:07 PM   
schmism



Posts: 585
Joined: 3/26/2004
From: STL, MO, USA
Status: offline 		one word, CLUTCH!!

if you cant get your bell clutch to GRAB then i dont care how much power you have and what gearing you have...it if wont grab then youll never see the "take off" power.

(in reply to GVFD29)
       Post #: 56

RE: OFNA/Picco .21 RECALL!! - 3/31/2008 1:46:12 AM   
nipimpin90


 

Posts: 2
Joined: 3/26/2008
From: new iberia, LA, USA
Status: offline 		it not stopping me from ordering mine nex week!!i dont care it their blowing up in peices im getting it.their just gonna have to replace a lot of engines

(in reply to Superbike)
       Post #: 57

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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Monster Trucks >> Traxxas Monster Truck forum >> RE: OFNA/Picco .21 RECALL!!
Page: <<   < prev  1 2 [3]





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