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Old 04-12-2013, 10:02 PM   #3226
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Tried 2.7 front and 2.5 rear with 500 and it was awesome and also tried 2.9 front and 2.5-2.8 rear 350 oil and it was even better
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Old 04-13-2013, 05:33 AM   #3227
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Tried 2.7 front and 2.5 rear with 500 and it was awesome and also tried 2.9 front and 2.5-2.8 rear 350 oil and it was even better
Try 2.7 front and rear with both oils and see what that does for your lap times.

I started last night with a setup I ran outdoors at the weekend just to see what it was like, just OK, but a bit loose.

At one point I kept everything the same, including springs, but just changed the oil from 350 to 450, and within a couple of laps I was 0.2s per lap faster. The thicker oil just seems to make the car a bit easier to drive.

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Last edited by Skiddins; 04-13-2013 at 07:52 AM. Reason: More detail
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Old 04-13-2013, 02:24 PM   #3228
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Quote:
Originally Posted by Skiddins View Post
Try 2.7 front and rear with both oils and see what that does for your lap times.

I started last night with a setup I ran outdoors at the weekend just to see what it was like, just OK, but a bit loose.

At one point I kept everything the same, including springs, but just changed the oil from 350 to 450, and within a couple of laps I was 0.2s per lap faster. The thicker oil just seems to make the car a bit easier to drive.

Skiddins
We've been trying some things out to "flatten" the car out in stock. 2.7/2.5 with 350-400wt oil has been good to start with. I tried 1.5/1.3 swaybars last weekend and it helped a little. I forgot to order some 2.9s for this weekend, so I took some Associated blues (roughly the same lb/in rate) and cut them to fit. I plan to get the 2.9s and also order Serpent black and grey springs as they should fit. (this is on med/hi bite carpet)
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Old 04-13-2013, 02:33 PM   #3229
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Interesting!
Aplus parts for T4:
http://www.a-plusrc.com/index.php/pr...ts/x-ray/t3-t4
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Old 04-13-2013, 04:01 PM   #3230
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Quote:
Originally Posted by Skiddins View Post
Try 2.7 front and rear with both oils and see what that does for your lap times.

I started last night with a setup I ran outdoors at the weekend just to see what it was like, just OK, but a bit loose.

At one point I kept everything the same, including springs, but just changed the oil from 350 to 450, and within a couple of laps I was 0.2s per lap faster. The thicker oil just seems to make the car a bit easier to drive.

Skiddins
Which pistons do you use? I'm using 1.1 4 hole and think if I go to 700 the car will still feel soft but not too soft...
I have 2 full sets of shocks, ill try 2.7's all around with 350 and 500 tat tomorrow's race..
I'm by far not the best driver as I crash a little more than the faster guys, I'm only racing electric since around Xmas time... Just really happy I decided to go xray instead of something else, that being said the fastest lap last night was 8.9 and my fastest was 9.2 and the week before couldn't break 10 seconds
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Old 04-13-2013, 04:03 PM   #3231
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We've been trying some things out to "flatten" the car out in stock. 2.7/2.5 with 350-400wt oil has been good to start with. I tried 1.5/1.3 swaybars last weekend and it helped a little. I forgot to order some 2.9s for this weekend, so I took some Associated blues (roughly the same lb/in rate) and cut them to fit. I plan to get the 2.9s and also order Serpent black and grey springs as they should fit. (this is on med/hi bite carpet)
Serpent springs from the new shorter shocks?
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Old 04-13-2013, 04:24 PM   #3232
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Serpent springs from the new shorter shocks?
Yes, for the S411/Eryx. Their electric TC springs have always been short and a bit wider than other springs, but for the newest car they shortened the shock body to match!

I'm going to start at AE blue front/2.7 rear, 425wt all around, and 4x1.1 front/4x1.2 rear pistons. I found a swaybar that measures at 1.45, so I'll try that up front. The 1.3 on the back worked great so I'm leaving it for now.
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Old 04-14-2013, 03:21 AM   #3233
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Can someone tell me the total length of the T4 shock?
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Old 04-14-2013, 06:02 AM   #3234
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Selling my Xray T4 NIB with Sanwa/airtronics 94647 low profile NEW. 127 oz/.09 speed. 518-495-0703.
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Old 04-14-2013, 11:00 AM   #3235
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Can someone tell me the total length of the T4 shock?
I saw that someone suggested 9 mm gap between the top of the shock eyelet and the lower shock cap. When I got the shock assembled with that measurement, it was a little under 57 mm, so I just set all mine to 57 mm. HTH

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Old 04-14-2013, 11:42 AM   #3236
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Is it better to have a tighter or looser rear belt on asphalt in general? Also, considering the possibility of little stones getting in between the belt and gear diff?
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Old 04-14-2013, 11:45 AM   #3237
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Quote:
Originally Posted by andrewdoherty View Post
I saw that someone suggested 9 mm gap between the top of the shock eyelet and the lower shock cap. When I got the shock assembled with that measurement, it was a little under 57 mm, so I just set all mine to 57 mm. HTH

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9mm for me. Haven't measured total length.
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Old 04-14-2013, 05:50 PM   #3238
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9mm for me. Haven't measured total length.
That's what it says in the instructions 9mm from top of the ball end to the bottom off the cap where the O-ring is...
What's the difference if the dff is up or down?
It just makes it easier to adjust belt tension if I do it on top
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Old 04-14-2013, 06:14 PM   #3239
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A friend had some 2.9s available, so today I ran 2.9 425wt front/ 2.7 350wt rear. I also had medium camber links front and read. I tried both a Mazdaspeed and LTCR...... The Mazda was incredibly smooth and consistent but I set the fastest laps with the LTCR.

After going with a "stiffer dampening" setup, I'd say the car was the best it's ever been in stock. I was on Sweep32s most of the day, but they got a little tired in the main. The setup worked so well that I'm going to test it in mod, except with Jacos and probably the Mazda.

I tried this setup with both a gear diff and spool.... I personally preferred the spool but ran the same laptimes with both.

My friend ran a similar setup except with slightly stiffer springs (Reflex), but I can't remember which exactly. He is much less aggressive than I am, so despite the springs and gear diff he ran identical times.... He rolls the turns and barely uses handbrake, so those two differences compared to mine suited his driving style well.
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Old 04-14-2013, 06:18 PM   #3240
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I noticed today that the metal ball that the lower shock mounts to is very tight and doesn't pivot properly. I checked the T4 build manual and it says to have the shiney side away from the metal ball ??? is this right ? TBH I tried it both ways round and its still tight. Ive never had this problem with any xray before. Any ideas
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