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Old 04-15-2011, 10:15 AM   #31
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Default Good Day of Testing

Yesterday I had the chance to play with the shorter links quite a bit. Even though the track did not have as much grip, I was able to match my fastest lap on the layout. All the other drivers were about 2-3 tenths off from their usual "fast lap". Sam, who is usually about 2 tenths slower on fast lap, with a TC6, was 0.5 secs slower. Another thing to note is that my fast lap previously was on new tires. This week, I ran the fast lap on tires that had about 4 runs on them.

Does this mean the car was faster? Maybe. The car felt a lot more responsive, and switched directions much, much, quicker. It was crisper and it felt like it tracked much harder with the front tires. The reaction of the front end of the car was even overwhelming the rear at times, if driven too hard on power. It was really reactive to small changes on the inner link position. A difference of 1mm in the rear would make the car either super loose or hooked up. The car excelled in high speed transitions, but it seemed to lack grip on power. This could have been due to the decreased track grip though.

I ended up settling for 2mm underneath the inside ball stud (black AE) at F/R. This felt the best and gave the best traction overall. I do feel the springs are about a lb too stiff. The good thing is I have some prototype TC6 springs on the way. They will have 1 lb increments in order to fine tune better. They will also fix the AE shocks perfectly, unlike XRAY or Yokomo Springs which are oversized. With the roll centers I run (3A all around- they don't allow the arms to get as loose through a run) I think a 13.5 lb rear spring and a 15.5 spring at the front would do the trick at our track. Right now I am running 14.5 R and 17.0 F (silver and blue respectively).

The pistons were excellent. I switched over from my drilled AE pistons to the machined delrin ones and the shocks felt smoother. I could not really tell a difference on the track though.

Well, the pre-orders for the bulkhead caps should go up next week if all goes well.
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Old 04-15-2011, 10:24 AM   #32
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Default WTD

Wa Da Fa....

that looks very nice....
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Old 04-15-2011, 10:29 AM   #33
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Thank You! We are quite proud of them. And if testing performance is any indicator, they might be a must
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Old 04-21-2011, 11:09 PM   #34
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i have tested the pistons for 2 weeks now and they are smooth i have tried 3 different pistons in the TC6 and these are the smoothest and the fit is spot on no need to shim or drill perfect fit. if you decide to make some out of teflon ill be first in line.. can wait to test out the springs next thanks again CT and BTW awesome racing tonight
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Old 04-22-2011, 06:25 AM   #35
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Thumbs up for a great entrepreneurial idea!

Cheers.
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Old 04-22-2011, 08:50 AM   #36
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You can add me to the waiting list. In addition to the RDS and pistons, I'm also interested in the gear diff.

Thanks,
Jim
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Old 04-22-2011, 09:18 AM   #37
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Thanks for the kind words guys.

We are not making gear diffs, the one you see in my car is the Spec R diff, modded to fit. We can probably, start selling modded diffs to fit in the cars. Let me see if I can perhaps get the cases machined just enough to fit- it just might be a great product.

What we did have to test yesterday was springs Our springs, again, not re-inventing the wheel, but they are actually are made to spec for the TC6. What this gives you is a spring that fits the shock body, spring perch and shock collar perfectly, without having to use different spring perches that still make the springs fit poorly (like the Yokomo and XRay ones).

We have 4 spring rates that we tested, and liked the most.
-13.5 lb spring (my favorite at our track for medium-high grip, it really settles the rear of the car down. With the 14.5 the car seemed to float too much, with 12.0 it was way too soft),
-14.5 lb spring (same as the AE Silver- so debating on the need for these, except for the fact that they are made from really high quality spring steel),
-15.5 lb spring (my favorite for the front, really made the car easier to drive more responsive off power and better rear traction on power with the rear gear diff- great for our medium-high grip track)
-16.5 lb spring (slightly softer than the AE Blue, great for high bite, ultra smooth surfaces. Makes the car really stable off power and gives the car tons of on power steering).

The springs really made a difference. They also compliment the shorter links very well. With the shorter links, the car acts slightly stiffer, so we needed something slightly softer "in between" to get the perfect roll stiffness we were looking for. They allowed the car to achieve a balance that I previously was not able to find with other springs. The fitment is perfect and through all our testing they have remained consistent and linear on the bench and on the track. We had another driver test the springs on his TC6 tonight and his results were very, very impressive. He was the only driver to stay inside of a lap of my time in qualifying.

Pictures of the springs are coming over the weekend. Pre-orders for all the parts should be up by Sunday night.
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Old 04-22-2011, 10:05 AM   #38
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Put me down for pistons and bulkhead tops!
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Old 04-22-2011, 07:07 PM   #39
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Quote:
Originally Posted by CristianTabush View Post

We are not making gear diffs, the one you see in my car is the Spec R diff, modded to fit. We can probably, start selling modded diffs to fit in the cars. Let me see if I can perhaps get the cases machined just enough to fit- it just might be a great product.
I was actually talking about the Spec-R Gear Differential for Yokomo BD-5 which I thought was a drop-in diff?

You can put me down for some springs as well. Nice stuff!

Jim
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Old 04-22-2011, 11:52 PM   #40
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Thanks Jim. Well the diff is not exactly a direct fit. It is slightly too wide and also the balls on the dog bone side of the Unis are too big.

Easiest solution is to drill out the outdrives on a drill press with a 1/4 in bit and the unis drop right in. To make it narrow enough to not bind, you can shave off with a sharp blade about 0.5mm on each side where the outdrive bearings hit the case, this allows the bearings to sit closer to the case and to not bind against the bulkheads. You also must obviously remove the stock shims from the diff that are used to space it in as well.
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Old 04-24-2011, 01:42 PM   #41
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Default Springs!!!




The springs will come in pairs or as a full set.

The lb/in rates are as follow:
-13.5
-14.5
-15.5
-16.5

They will be identified by a color dot on one end of the spring.
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Old 04-24-2011, 01:52 PM   #42
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Can't wait to try them!!
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Old 04-24-2011, 01:58 PM   #43
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Cool!

Just a little suggestion:
Instead of using painted dots (which can be easily discoloured), wouldn't be better to put serigraphed dots?

For example: 1 dot - 13.5 lbs, 2 dots -14.5 lbs, 3 dots - 15.5 lbs and so on....

Bye!
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Old 04-24-2011, 02:02 PM   #44
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I'll look into that. Sounds like a better solution. I will talk to the factory and see if they are capable of doing this.
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Old 04-24-2011, 02:54 PM   #45
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Default Pre-Orders are Up!!!

On Another Note, Pre-orders are up! We are looking at a Middle of May release of the first items, hopefully right in time for the Reedy Race.

Press release is being prepped to send in to Red RC and Facebook. Add us on there
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