Xray XB9
07-15-2012, 11:44 AM
#2417
07-15-2012, 04:31 PM
#2418
Outdrive wear gets real bad when the pins start to get that C shape like the previous pictures. If I don't have time to replace the pin, I dremel the end of the pin so its even with worn part. This reduces my outdrive wear.
07-16-2012, 10:03 AM
#2420
I personally need more pack than the 8x1.3's can deliver without going to very high CST rated oils. I started at 7x1.25's with intentions of drilling out holes to 1.3 as needed. I ended up not needing to drill anything. If I get to a super rough track, I may need to drill a couple holes out, but we will see.
I would suggest most people start at 8x1.3's with 700/600 or 45/35 in the heat we have right now (95-105F). Try that and see how the car feels. If you want more pack, go with a smaller hole/less holes (plugging one hole on the 8x1.3's is very popular).
07-16-2012, 11:24 AM
#2421
They have. Some like that piston quite a bit. I know Tex has taken Kyosho 8x1.2's and drilled some of the holes out to 1.3 depending on traction, track surface, etc. A lot of it is personal preference. The car has shown that it can go fast with anyhting from 6x1.3's to 8x1.3's and anything in between. It is mostly about what allows YOU to drive your car fast that will determine what pistons you choose to run in the end.
I personally need more pack than the 8x1.3's can deliver without going to very high CST rated oils. I started at 7x1.25's with intentions of drilling out holes to 1.3 as needed. I ended up not needing to drill anything. If I get to a super rough track, I may need to drill a couple holes out, but we will see.
I would suggest most people start at 8x1.3's with 700/600 or 45/35 in the heat we have right now (95-105F). Try that and see how the car feels. If you want more pack, go with a smaller hole/less holes (plugging one hole on the 8x1.3's is very popular).
I personally need more pack than the 8x1.3's can deliver without going to very high CST rated oils. I started at 7x1.25's with intentions of drilling out holes to 1.3 as needed. I ended up not needing to drill anything. If I get to a super rough track, I may need to drill a couple holes out, but we will see.
I would suggest most people start at 8x1.3's with 700/600 or 45/35 in the heat we have right now (95-105F). Try that and see how the car feels. If you want more pack, go with a smaller hole/less holes (plugging one hole on the 8x1.3's is very popular).
07-16-2012, 08:01 PM
#2422
8-1.2s will probably be pretty good actually, 40-35w as a starting point. The xrays guys on here are always trying something new, probably more so than any other group of guys. Alot of the creativity has been carried over from the 808 shocks which needed a little help.
07-16-2012, 11:17 PM
#2423
My thinking on the shocks..
I found most of the top pros playing in the 1.3 x 8 ball park. As much as I tried, I could not find a way to like that package because I always liked a little more pack than that. Sure you could go up in oil weight but that is straight on dampening. It slows the shock down overall.
I always preferred 1.2 x 8 in the fronts so I could land the car on the nose and not worry about it.
In turn I went half way in between to get the overall dampening I desired.
1.2 x 4 + 1.3 x 8. This gave me the half way value which I love at Indy.
Changing tracks and going to heavy mogul bump sections having a high pack value will kick you around as you push for higher speeds. Solution was
1.2 x 2 + 1.3 x 6. Then I made a set of pistons that is 1.2 x 6 + 1.3 x 2 for the front.
For now these are my options I have in the box. All of them are based on Kyosho or Associated 1.2 x 8 pistons which are 15.85 mm or bigger. I do that because it fits the Xray shock body better and I get a hole that is truly sized properly.
It doesn't seem like much but there is a big difference in a piston that is marked 1.2 where the hole is sized at 1.225 x 8 and the diameter of the piston itself is 15.8 mm.
Hope this helps,
TEX
I always preferred 1.2 x 8 in the fronts so I could land the car on the nose and not worry about it.
In turn I went half way in between to get the overall dampening I desired.
1.2 x 4 + 1.3 x 8. This gave me the half way value which I love at Indy.
Changing tracks and going to heavy mogul bump sections having a high pack value will kick you around as you push for higher speeds. Solution was
1.2 x 2 + 1.3 x 6. Then I made a set of pistons that is 1.2 x 6 + 1.3 x 2 for the front.
For now these are my options I have in the box. All of them are based on Kyosho or Associated 1.2 x 8 pistons which are 15.85 mm or bigger. I do that because it fits the Xray shock body better and I get a hole that is truly sized properly.
It doesn't seem like much but there is a big difference in a piston that is marked 1.2 where the hole is sized at 1.225 x 8 and the diameter of the piston itself is 15.8 mm.
Hope this helps,
TEX
07-17-2012, 03:02 AM
#2424
Have anyone tried the Kyosho pistons with angled holes?
Sounds to me that those would be good because they are said to pack quicker than the straight hole ones.
So 1,3X8 with angled holes should work well as a base setup?
http://www.infernosonly.com/SearchRe...x=0&Search.y=0
I was told to go down 50-100 cps in shock oil on my MP9 when using these pistons, compared to the same pistons with straight holes. I have a set of these from my old MP9, so I`ll test them as soon as I get the chance.
Sounds to me that those would be good because they are said to pack quicker than the straight hole ones.
So 1,3X8 with angled holes should work well as a base setup?
http://www.infernosonly.com/SearchRe...x=0&Search.y=0
I was told to go down 50-100 cps in shock oil on my MP9 when using these pistons, compared to the same pistons with straight holes. I have a set of these from my old MP9, so I`ll test them as soon as I get the chance.
Last edited by OleC; 07-17-2012 at 03:21 AM. Reason: More info
07-17-2012, 04:34 AM
#2425
Yes, I tried the SP pistons but was still way higher on oil than I wanted to be to get the necessary pack for my liking.
Have anyone tried the Kyosho pistons with angled holes?
Sounds to me that those would be good because they are said to pack quicker than the straight hole ones.
So 1,3X8 with angled holes should work well as a base setup?
http://www.infernosonly.com/SearchRe...x=0&Search.y=0
I was told to go down 50-100 cps in shock oil on my MP9 when using these pistons, compared to the same pistons with straight holes. I have a set of these from my old MP9, so I`ll test them as soon as I get the chance.
Sounds to me that those would be good because they are said to pack quicker than the straight hole ones.
So 1,3X8 with angled holes should work well as a base setup?
http://www.infernosonly.com/SearchRe...x=0&Search.y=0
I was told to go down 50-100 cps in shock oil on my MP9 when using these pistons, compared to the same pistons with straight holes. I have a set of these from my old MP9, so I`ll test them as soon as I get the chance.
07-17-2012, 04:54 AM
#2426
07-17-2012, 05:00 AM
#2428
07-17-2012, 12:05 PM
#2430
I would suggest trying these Kyosho 1.2 x 8-hole tapered pistons with the straight holes. 
I have had several Kyosho drivers tell me to stay away from the Kyosho SP pistons with the angled holes because "they are crap", although I have never tried them myself. So.. just passing that along.. for whatever its worth.
I have had several Kyosho drivers tell me to stay away from the Kyosho SP pistons with the angled holes because "they are crap", although I have never tried them myself. So.. just passing that along.. for whatever its worth.