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Old 10-29-2012, 02:16 AM   #1171
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Anybody run into issues fitting a pinion in the car with a d3.5? If I turn the pinion so the screw is closer to the motor it ends up on the non flatspot portion of the motor shaft....If I turn the pinion the other way the pinion hangs off the end of the motor shaft a little and is into the battery....?

Using PRS pinions and the RW "xray" gears. Are any other brand of pinions shorter? The PRS gears I have measured @ 9.75mm thick. I had a buddy measure one of the CRC gold standard pinions and it came in @ 9.1mm. Anybody know of anything a little thinner?
Or you could file the flat a little longer. I had to trim 2.5mm off the end off my motor shafts to clear battery

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Old 10-29-2012, 02:56 AM   #1172
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the end of my motor shaft sits about 1mm off the battery. its just because these cars are so narrow
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Old 10-29-2012, 03:36 AM   #1173
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well got a quote back for anodizing..turn around was going to be 2-3 weeks..I can wait that long to build my kit! So I decided to go with silver instead of black. Decided to strip and polish the aluminum pieces to give them an old school xray look..like the T1 and T2. Thanks for the suggestion trigger!

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The parts are shinier than the picture shows. Now that hard work is done.. now for the fun part.. building the kit

Thats awesome! How did you do that?! What type of polish did you use... tools? great work!
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Old 10-29-2012, 03:46 AM   #1174
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Be sure the layshaft and spur offset are oriented correctly. Even when installed correctly, there's little room left. I found that the set screw was easier to access from the top, than the hole in the bottom, as the motor mount blocked access when the screw was mounted toward the motor.
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Old 10-29-2012, 06:07 AM   #1175
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Ran the car with great results this week, I made some changes from the kit setup & they worked very well.
The car felt close to the T3'12 but had better steering mid corner.

500wt front shock oil, 1.1 4hole pistons
350wt rear 1.1 4hole pistons
2deg camber front/rear
0toe front
3 toe rear
5mm ride height front
5.5mm rear
middle roll centers all around
2000 rear diff oil(75% 1k, 25% 3k)
LTCR light weight body
52mm xray ECS
xray hard front bumper from a T3'12

Running 17.5 Blinky.
The car felt great, it went where you wanted it to go & very stable, very easy to drive.
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The New Xray T4 '13-014.jpg   The New Xray T4 '13-017.jpg   The New Xray T4 '13-016.jpg  
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Old 10-29-2012, 06:24 AM   #1176
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Originally Posted by Shortbusallstar View Post
Ran the car with great results this week, I made some changes from the kit setup & they worked very well.
The car felt close to the T3'12 but had better steering mid corner.

500wt front shock oil, 1.1 4hole pistons
350wt rear 1.1 4hole pistons
2deg camber front/rear
0toe front
3 toe rear
5mm ride height front
5.5mm rear
middle roll centers all around
2000 rear diff oil(75% 1k, 25% 3k)
LTCR light weight body
52mm xray ECS
xray hard front bumper from a T3'12

Running 17.5 Blinky.
The car felt great, it went where you wanted it to go & very stable, very easy to drive.
I drove my T4 with a 17.5T motor yesterday (blinky) because they were doing a mini race in the afternoon. My car was on rails with that motor. I could throw the car around and it stayed on it's rails. I won with 4 laps ahead on the 2nd driver and started as last since it didn't drive the quali

Basically everything was stock except for:
2mm shim under front shock
2nd hole on the front bulkhead
Downstop: front 5.7mm / rear 4.6
1.5mm shim on the rear bulkheads

Sorex 28 tires with Ame additive.
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Old 10-29-2012, 09:04 AM   #1177
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The weight of the car... Am I the only one that has to add 60g to the car to make 1380?
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Old 10-29-2012, 09:11 AM   #1178
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What electronics are you using?
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Old 10-29-2012, 09:14 AM   #1179
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Well, yet another successful weekend for the T4! We were able to TQ and finish 2nd at the Halloween classic against a small but stout field -Keven Hebert, Josh Cyrul, Ray Darroch, Andrew Knapp to name a few. The car only needed a few tweaks from the setup we have been playing with since IIC. During the weekend, we had a tenth quicker hot lap(consistently I might add) than Keven and Andrew qualified almost 4 seconds ahead of him. This was especially exciting given the fact that Kevin was the only person really giving Ronald Volker a hard time at the IIC. The final was a fantastic race, both almost bumper to bumper for the entire 6 minute up until the final set of corners where Andrew made a last ditched effort to get by after an earlier bobble. Kevin is incredibly good out front and probably the hardest person to pass in RC As they came around the sweeper onto the straight they were side by side and they touched, as a result both needed to be marshalled. Andrew was marshalled a little quicker and therefore could have driven away for the win but he decided to stay put and let Kevin go across the line first. Andrew knew he forced the issue and decided it was not the way he wanted to win - a great move in the eyes of most. Despite losing the main, it was a great weekend and we learned even more about the new car and what it needs to be a legitimate contender.

One thing that I found very interesting was during the prep for the main. I noticed that I had not installed any screws to hold the spool cups securely to the spool itself(we all make mistakes right? )so like a good mechanic, I corrected my "mistake" and installed the screws. Up until the main, every round we had been clear of Keven by a tenth allowing Andrew to control the pace, but for some strange reason we lost that tenth in the main. We went from 9.2 to 9.3 and this small difference allowed Keven(he was also doing 9.3's) to pressure Andrew right from the start. After a debrief with Andrew, he informed me that the car was a little more "edgy" but other than that the car was almost identical to the runs previous. So now I have a suspicion that maybe the screws vs. no screws in the spool had something to do with it. Have I stumbled across something here? Unfortunately, I will have to wait till the weekend to test this but I thought I would throw it out there for people to discuss.
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Old 10-29-2012, 09:43 AM   #1180
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The weight of the car... Am I the only one that has to add 60g to the car to make 1380?
My T4 is 1280g without weight
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Old 10-29-2012, 09:50 AM   #1181
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What electronics are you using?
Tekin speedo
KO KR-411FH Micro Receiver
Fan 30x30
Futaba S9551 Low-Profile
D3.5 motor
MyLaps TP (the new one)

And the car is balanced right to left side....

Ready to put on the track it weights 1323 and yes the scale has been certified.... I have certified weights...
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Old 10-29-2012, 09:53 AM   #1182
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Originally Posted by niemand View Post
My T4 is 1280g without weight
Do you get the feeling that they are going to lower the weight again for TC?

NO I do not know this, just guessing....
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Old 10-29-2012, 10:10 AM   #1183
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Originally Posted by bvoltz View Post
Tekin speedo
KO KR-411FH Micro Receiver
Fan 30x30
Futaba S9551 Low-Profile
D3.5 motor
MyLaps TP (the new one)

And the car is balanced right to left side....

Ready to put on the track it weights 1323 and yes the scale has been certified.... I have certified weights...
what battery? With certain ones you can get the weight down to 1300g and under if really needed. Also what tyres? Certain ones weigh a fair bit less than others.

With a 315g battery, mine comes in bang on the UK limit of 1350g (fan included)
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Old 10-29-2012, 10:15 AM   #1184
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Originally Posted by Mb3195 View Post
what battery? With certain ones you can get the weight down to 1300g and under if really needed. Also what tyres? Certain ones weigh a fair bit less than others.

With a 315g battery, mine comes in bang on the UK limit of 1350g (fan included)
Battery is 318g (RevTech 100c)
Solaris tires (S-TSHGM3W)...

I'm way under weight. I'm at 1323g and need to get to 1380g... so I have to add 60g....
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Old 10-29-2012, 10:20 AM   #1185
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Battery is 318g (RevTech 100c)
Solaris tires (S-TSHGM3W)...

I'm way under weight. I'm at 1323g and need to get to 1380g... so I have to add 60g....
surprised it is so low with such a heavy battery, although you do have a lighter receiver than me (mine is a sanwa 451) and I also have a slightly heavier than standard bumper.

But........better to be underweight and add the weight down low than be overweight!
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