Xray T4 18
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#467
Tech Adept
You are right on the increased mid corner rotation of the ULP over the SLP a trait i felt the x rays were always weaker at compared to other mamkes and looks like x ray have hit it right this time with the introduction of the ulp shocks. This is coming from a T4 15 16 17 and has been consistently tested on a factory x ray sponsored driver. It works fine on low to mid traction asphalt provided the oil used does not exceed 400 wt.
Been running the ULP shocks here on low-medium grip asphalt out here in Australia (it's summer time).
In mod, combined with the PSS inserts, 450 seems on the money. With the SLP's, I would tend to run 550 everywhere, so the lighter oil in the ULP's seems to be about right. I think in part it's down to the PSS inserts being a little more aggressive in the damping rate increase, as they are shorter. I have noticed that the new PSS also seems to prefer less droop than the old SLP/PSS combo... 5.6/4.6 is my new go to instead of 5.2/4.2. Running more, and the car just locks up in the turns.
For the Stock car, with standard shocks, 400 has seemed pretty good, but in cooler times, can deff see 350 working well.
Our tracks aren't super smooth, but so far have been just as fast with the ULP than the SLP. One thing I have noticed with the ULPs is that they seem to give the car more mid-corner rotation. Haven't yet figured out why this is yet though.
In mod, combined with the PSS inserts, 450 seems on the money. With the SLP's, I would tend to run 550 everywhere, so the lighter oil in the ULP's seems to be about right. I think in part it's down to the PSS inserts being a little more aggressive in the damping rate increase, as they are shorter. I have noticed that the new PSS also seems to prefer less droop than the old SLP/PSS combo... 5.6/4.6 is my new go to instead of 5.2/4.2. Running more, and the car just locks up in the turns.
For the Stock car, with standard shocks, 400 has seemed pretty good, but in cooler times, can deff see 350 working well.
Our tracks aren't super smooth, but so far have been just as fast with the ULP than the SLP. One thing I have noticed with the ULPs is that they seem to give the car more mid-corner rotation. Haven't yet figured out why this is yet though.
#471
#473
I have the T4 2017. Is it worth upgrading to the ULP shocks? I only race on carpet.
#475
Tech Apprentice
Hi Guys.
On med grip asphalt is the front spring preference a linear or progressive spring. Which one tends to work best most of the time. I have the kit 2.5 and have purchased the 2.6 springs as well.
Just wondering if I need to splash out on the progressives as well.
thanks in advance
On med grip asphalt is the front spring preference a linear or progressive spring. Which one tends to work best most of the time. I have the kit 2.5 and have purchased the 2.6 springs as well.
Just wondering if I need to splash out on the progressives as well.
thanks in advance
#476
Hey I apologize if this was answered previously but I didn’t make it through all the post. I have a T4’13 that I enjoy running but the chassis is almost done. Going to make this my VTA car as I’m picking up a used T4’17 for my USGT ride. However since I’m a racer on a budget I can’t really shell out for a new T4’18. Any chance the 17 or 18 chassis can be used with ‘13 hardware? Same mounting holes? Can’t seem to find a ‘13 chassis anywhere online.
#477
Tech Fanatic
iTrader: (7)
Hey I apologize if this was answered previously but I didn’t make it through all the post. I have a T4’13 that I enjoy running but the chassis is almost done. Going to make this my VTA car as I’m picking up a used T4’17 for my USGT ride. However since I’m a racer on a budget I can’t really shell out for a new T4’18. Any chance the 17 or 18 chassis can be used with ‘13 hardware? Same mounting holes? Can’t seem to find a ‘13 chassis anywhere online.
T4 2013 Chassis, Std, Bezerk RC
#478
#479
Tech Fanatic
iTrader: (30)
Hey I apologize if this was answered previously but I didn’t make it through all the post. I have a T4’13 that I enjoy running but the chassis is almost done. Going to make this my VTA car as I’m picking up a used T4’17 for my USGT ride. However since I’m a racer on a budget I can’t really shell out for a new T4’18. Any chance the 17 or 18 chassis can be used with ‘13 hardware? Same mounting holes? Can’t seem to find a ‘13 chassis anywhere online.
Starting with the 2014 car Xray switched to a different suspension mount style that has carried up to the 2018. This means that if buying a newer chassis, you also need all new suspension mounts, which is quite a bit of dough. If say updating a 2014 car to something newer, you can save this expense. Another change from 2015 was to the bearing mounted sway bars, using different bulkheads. This isn't really a performance thing, but is easier to eliminate slop and is smoother than the 2013-14 design. Not necessary if upgrading, but worth noting. The biggest changes from 2014-now have to do with the center of the chassis. Xray moved to a new servo mount that is longer than the 2013-14 car, so if upgrading to any newer chassis you also need a servo mount. In 2017 Xray went to a hanging carbon servo plate, which is optional, and uses the same bottom chassis holes as previous cars, so it can be transferred between model years. The largest change between all the model years has to do with the motor mount. It is something that changes regularly year to year, adding new flex adjustments, moving it slightly and requiring new holes in the chassis. The layshaft mounts have changed slightly as well as integrating the left side into the motor mount, might need the matching pair as well. So if you were still on board to try and update your '13 to say a '16 chassis, you would need to buy the '16 specific motor mount, as a newer or older one would not line up well, if at all. Then you get to the ULP shocks on the '18 but that can be viewed as a tuning option, same with ARS.
So to sum up, to upgrade your 2013 you need (using the cheapest new/used ebay prices):
-Chassis $100 -could buy a cheaper off-brand...
-Suspension mounting blocks $45
-Servo mount $35
-Motor mount specific to the model year chassis $45
Optional:
-Updated bulkheads $45
-Bearing mounted sway bars $15
-ARS $35
-ECS Shafts (wasn't standard on the '13, if you don't have them already) $60
So you're looking at dropping $200+ to update your car to an older, yet still competitive model. I would value a nice T4'13 around $200, a 15-16 closer to the $300 range, and a 17 up to $400+. So For the price of your current car/upgrades you would need, it makes more sense to just buy a newer-used model. Even upgrading a 2014 would be substantially less given the suspension mounts. The T4 was very different than the T3, but since 2013 the new cars share almost 0 carbon/aluminum parts with the original T4, while merely evolutions, they are still different. So I elected to go the route of a used T4'17
All that said, I have a very nice spare carbon chassis for the T4'13 car, complete with suspension mounts. Feel free to make me an offer.
#480
Gotta agree. My first Xray TC was a T4 '13 that I got in late 2012 (wow, 5 years goes by fast). I haven't bought a new Xray TC until the '18. Even though Xray does very minor changes year by year....after 5 years, it adds up, lol.
FYI, I was never happy with my T4 '13 handling and ditched it soon after to go with another brand.. I feel Xray didn't get it right until the '15 or so. Just my opinion...
FYI, I was never happy with my T4 '13 handling and ditched it soon after to go with another brand.. I feel Xray didn't get it right until the '15 or so. Just my opinion...