Originally Posted by Serzoni

My son's car has one on it (F104 diffuser on the old F1R). It was on there when we bought it used, but it looks like the previous owner just cut up a stock F104 lower pod plate and then screwed it on using the 2 screws at the rear of the F1R lower pod plate.

Originally Posted by Smile

Thanks for your reply. I just thought maybe I can mount it in a way that makes it flush with the rest of the chassis.

Another question: Are the F104v2 side links compatible with the old F1R?

Originally Posted by wheelz

Hey hows it going? Could you possibly post a picture of what you're talking about?



I just ran carpet on Thursday night so I'd be happy to explain my process a little better

Applying the AW Grease: I use the tube that tamiya sells and apply grease to every other ball on one side. Then I flip the gear and then grease the balls that i skipped on the previous side. So that way each ball gets greased once (grease 6 balls on one side and grease the other 6 balls on the opposite side). You want to apply just enough grease completely the cover the ball in the hole of the spur gear.

Setting the diff: The diff will seem really thick with the grease and viscous. So you cannot set the diff by spinning the tires in the opposite direction. I set the diff just until I cant spin the spur gear as both of the tires are locked down. Some tires I will tighten it another 1/8 turn past this point as well.

Life of AW Grease: Typically I will regrease my car every day its at the track to keep things consistent. You should be able to get a full day with the grease fresh every day. normally if I'm at the track and regrease my diff more than once it is because the diff looses the "viscous" feeling.

I hope this helps some? I wish I could go to IIC this year but my school schedule worked out to where I would miss too much practice....

Originally Posted by IlikeF1

I ran the other night after using the AW grease as you outlined - you weren't kidding about the instant 2 tenths - I went from a 10.4 to a 10.2 first run!

Thanks for sharing all of your expertise on this forum!

Originally Posted by Paco1001

What type of balls do you use for the diff it self? Steel or Ceramic?

Originally Posted by wheelz

I have been using ceramic balls for a while now with good success.

As long as your diff feels smooth with no tires on it I think both materials are ok. Typically with ceramic balls, because the material is so hard, you need to run the diff tighter in order to not make it slip

Originally Posted by Paco1001

Ok so I ran the new setup last night. The front wing for the 2012 ferrari sucks. Ordering up the Mclrean ASAP. The carbon tube I put under the wing to stiffen it up broke.

My car will not take off straight under power at all. It wants to pull hard to the right. I Have checked everthing I could think of last night with no success. Relubed diff. Diff was real tight at the end of the night. Still looped out under full throttle.

Sterring was better but it wanted to turn in real hard under acceleration. Like it didn't want to stop turnning. I had 20wt oil in the side dampers at the start of the night but ended up with Buds lube in there at the end of the night. Car was better but so unpredictable.

I think those tcs rear tires might be too hard for our track. Going to order a set of pits softs as well.

Wow this car is super frustrating right now. My old f1r was way better than the new car has been as of yet. I do have faith though.

Originally Posted by Paco1001

All tires are new. 2nd night of running was last night. I don't usually clean them but they do get a full dose of sxt 3.0. I think I will go to the sliver spring in the front instead of the soft associated for the next race night. What are you cleaning the tires with? I just picked up some gravity r/c traction compound but the jury is still out on if I like it or not. Have to get the car handling better before I say if its any good.

Originally Posted by Paco1001

Ok so I ran the new setup last night. The front wing for the 2012 ferrari sucks. Ordering up the Mclrean ASAP. The carbon tube I put under the wing to stiffen it up broke.

My car will not take off straight under power at all. It wants to pull hard to the right. I Have checked everthing I could think of last night with no success. Relubed diff. Diff was real tight at the end of the night. Still looped out under full throttle.

Sterring was better but it wanted to turn in real hard under acceleration. Like it didn't want to stop turnning. I had 20wt oil in the side dampers at the start of the night but ended up with Buds lube in there at the end of the night. Car was better but so unpredictable.

I think those tcs rear tires might be too hard for our track. Going to order a set of pits softs as well.

Wow this car is super frustrating right now. My old f1r was way better than the new car has been as of yet. I do have faith though.

Originally Posted by MikeR

Brad may be right regarding front set up being too aggressive.
Have you tried running the battery to the rear? You mention you like the older F1R handling- the F1R was a rear biased car to try and plant the rear end of the car for the tires that were available at the time (pre-Shimizu 72 and 75 tires). With the new generation of Shimizu tires the F1R2 came about to maximize overall grip and especially steering. If your track is lacking the grip then maybe try running the F1R style- weight to the back.

Previously you noted the car kept pulling left, now you mention it is pulling right. Also did you say your car is pushing? That usually indicates overall lack of tire grip if there's a loose rear and pushy front. Did you mention what you're saucing with other than gravity?

One other thing I noticed from your pic is to try is maybe reroute the motor wires over the top of the rear shock plate. If wires are going under the side dampers they could be tweaking the pod. I love 16g TQ Wire brand- it is heaven sent for pan cars! Thin insulation means less pod tweak