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01-15-2021, 04:02 PM
Replies: 2,708
Views: 322,548
Posted By rc pete

The Spec 2 has a lot of bottom end. The 2060...

The Spec 2 has a lot of bottom end. The 2060 smoothens it out and gives it a little more top end.
But most Truggy racers run it with the 2090 for more torque and the longer 85mm header for even...
01-12-2021, 11:35 AM
Replies: 4,202
Views: 1,122,282
Posted By rc pete

With a short steering link compared to the...

With a short steering link compared to the suspension arm, bump steer is inevitable, since the short arm changes angles quicker throughout the motion.
At full droop the link is angled down compared...
01-11-2021, 11:33 AM
Replies: 4,202
Views: 1,122,282
Posted By rc pete

Good eye! Those look like the Mugen front...

Good eye!

Those look like the Mugen front hub carriers... their steering arm mounts much lower compared to the AE ones.
To the naked eye, the spacer seems to bring the steering arm back up to...
01-06-2021, 10:45 AM
Replies: 4,202
Views: 1,122,282
Posted By rc pete

I've been using the Mugen C0270 pins 3x12.8mm on...

I've been using the Mugen C0270 pins 3x12.8mm on all driveshafts, front, rear and center, for a few years now.
They actually measure out to just under that: 12.75mm and fit perfectly into the...
11-23-2020, 09:45 AM
Replies: 693
Views: 139,304
Posted By rc pete

The Torque version needs more gear. I'd suggest...

The Torque version needs more gear. I'd suggest gearing up 2 teeth and a little more timing to start: 4.3:1 and 38
As always, check it after a couple of minutes of running to be safe when trying...
11-09-2020, 10:45 AM
Replies: 693
Views: 139,304
Posted By rc pete

Yes, ran both the Standard and High Torque rotor...

Yes, ran both the Standard and High Torque rotor in the Original 17.5 motor in TC. I found there to be only a small difference between them. Not enough to time or gear them differently, and the...
11-03-2020, 08:47 AM
Replies: 693
Views: 139,304
Posted By rc pete

No, that's more of an engineering question..

No, that's more of an engineering question..
11-02-2020, 03:52 PM
Replies: 693
Views: 139,304
Posted By rc pete

The Torque series have a High Torque Stator, same...

The Torque series have a High Torque Stator, same 27414 rotor.

The winding mark (21.5, 17.5, etc.) has a single-lined border for the Standard version and a double-lined border for the Torque...
10-29-2020, 10:17 AM
Replies: 2,708
Views: 322,548
Posted By rc pete

In the B2103 definitely use the B2103 crank. ...

In the B2103 definitely use the B2103 crank. That crank will achieve the required 16.8mm stoke. The Ty2 crank will only provide a 16.4mm stroke, which will not match up with rest of the engine.
10-28-2020, 10:34 AM
Replies: 2,708
Views: 322,548
Posted By rc pete

Oh, you have the Tessmann 110% XZ-B kit. Yes, in...

Oh, you have the Tessmann 110% XZ-B kit. Yes, in that case the rod will fit both the B2103 and the B21 Ty2.
The XZ-B has multiple versions. The original Speed and Speed Spec 2 had longer rods,...
10-27-2020, 12:58 PM
Replies: 2,708
Views: 322,548
Posted By rc pete

Unfortunately, the short answer is no. Take...

Unfortunately, the short answer is no.

Take a look at the two engine manuals/exploded views here. At the bottom of the page there is a discontinued engine link....
09-23-2020, 04:13 PM
Replies: 4,202
Views: 1,122,282
Posted By rc pete

No, I haven't. In general the car is more stable...

No, I haven't. In general the car is more stable and predictable with the longer rear arms.
And it's such a big change that you have to dial the rest of your setup to it. Going back would take a...
09-22-2020, 11:47 AM
Replies: 4,202
Views: 1,122,282
Posted By rc pete

The big geometry change on the 8.2 are the...

The big geometry change on the 8.2 are the narrower rear arm mounts with longer rear arms.
That has a massive difference in how the rear end behaves, as the roll center stays lower throughout the...
09-15-2020, 01:22 PM
Replies: 278
Views: 101,193
Posted By rc pete

Yes, same part number for those. FYI, you can...

Yes, same part number for those.
FYI, you can check out the exploded views on any discontinued engine here: https://www.os-engines.co.jp/english/line_up/stop_list.htm
09-03-2020, 12:59 PM
Replies: 13
Views: 3,658
Posted By rc pete

The two B2013 engines come with different carbs: ...

The two B2013 engines come with different carbs: Type S has the 22D, Type R has the 22E.
Although the Ninja B05 has the 22E carb, it's a different engine than the Type R. It's a 3-port vs. 5-port,...
07-22-2020, 01:28 PM
Replies: 4,202
Views: 1,122,282
Posted By rc pete

A Short upper arm will give you more response...

A Short upper arm will give you more response (more initial steering), a Longer one will give you smoother response and more mid-corner steering.
Look for how much the front end rolls side to side....
07-22-2020, 01:02 PM
Replies: 1,774
Views: 441,821
Posted By rc pete

You'd need a bunch of parts for this: - V1 ->...

You'd need a bunch of parts for this:
- V1 -> V3 diffs
- Universal axles -> CVDs (with larger inner bearings)
- New A,B,C,D arm mounts (with new front inserts)
- V1 -> V2 springs (need new shock...
04-20-2020, 02:12 PM
Replies: 3
Views: 405
Posted By rc pete

pm sent

pm sent
12-04-2019, 01:48 PM
Replies: 796
Views: 165,278
Posted By rc pete

Some starter boxes don't have the flywheel reach...

Some starter boxes don't have the flywheel reach up very high into the chassis slot, so be sure to check that. For example, the Protek one requires that the starter box assembly is shimmed up by 2mm.
10-21-2019, 10:25 AM
Replies: 13
Views: 3,658
Posted By rc pete

Here's a related post on O.S. carbs. ...

Here's a related post on O.S. carbs.
https://www.rctech.net/forum/offroad-nitro-engine-forum/1014322-os-carbs-21j-ver-1-2-3-a.html

Yes, O.S. went away from the short low speed needle quite a...
10-17-2019, 01:45 PM
Replies: 13
Views: 3,658
Posted By rc pete

This is my 8th OS Speed based off-road engine. ...

This is my 8th OS Speed based off-road engine. Just finished breaking it in (10-tank Tessmann method).
Runs like a champ, same OS engine quality and performance. Big thumbs up.

Thought about...
08-01-2019, 12:54 PM
Replies: 962
Views: 284,828
Posted By rc pete

A big change to try would be roll center: he runs...

A big change to try would be roll center: he runs the front roll centers low (A and B blocks), which makes sense on a larger layout. For a tighter track, you probably want more response and less...
07-31-2019, 12:02 PM
Replies: 278
Views: 101,193
Posted By rc pete

One more thing: whether you buy pre-oiled air...

One more thing: whether you buy pre-oiled air filters or oil them yourself, be sure to squeeze out most of the filter oil before installing them to maximize airflow. Some racers leave them saturated...
07-31-2019, 11:21 AM
Replies: 278
Views: 101,193
Posted By rc pete

The short answer is that if you're lean bogging,...

The short answer is that if you're lean bogging, you'll need to run it a hair richer.

It should seem rich in the first couple of laps, especially if your warm up is short, and as it warms up on...
05-13-2019, 10:48 AM
Replies: 799
Views: 189,278
Posted By rc pete

I was looking to do the same thing. The...

I was looking to do the same thing.

The crank is the same, so it should work. The only thing I see as being an issue is the case. It's a different part number although the critical dimensions...
Showing results 1 to 25 of 500
 


 
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