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Old 01-30-2016, 11:05 PM   #946
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I recently got this kit and so far I'm really liking it.

Today I drove it for the first time on my local track (carpet).
First few laps were with the stock tires but I quickly got 40shore and 35shore foam tires for the front and rear.

I did have too much steering, so I played a bit with the position of the rear shocks and laid them in more on the shocktower.
I got better but still not great. Should I go with a bit of a softer spring?
Or do you guys have other suggestions?
Try 42 front and 37 rear. Go for hard springs and short camber links. Drop can also be the key when running foams.
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Old 01-31-2016, 01:02 AM   #947
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i notice that your roll center has 3mm on out side that seems like a lot? what does this do to the car?
is your droop over ride height?
*facepalm*

Good eye, and great questions!

I corrected the setup sheet to reflect the 3mm shim on the upper bulkhead, as opposed to having 3mm shims on the carriers. LoL. Running 3mm shims on your carriers with the rest of my posted setup would give you an extremely low roll centre with a soft suspension and grippy tires, to the point where you would probably traction roll the car in just about every corner.

I measure my droop by putting the chassis on droop blocks, remove the wheels, and read the number on the droop gauge underneath the carriers (also called hubs). I don't un-mount the shocks when measuring the droop. I also don't pre-load the chassis when I measure ride height, which basically means I don't squish the car down and wait for the chassis to bounce up before checking the ride height.

Some will tell you otherwise, some will wholeheartedly agree with how I do it. But I'm glad you asked the right questions to determine what my definitions were in my setup (and that you saw the 3mm shims in a weird place).

Race on, my friend
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Old 01-31-2016, 02:18 AM   #948
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Foam tire sedans on carpet. Haven't seen that in a long time. Cool!

When I used to do this, a mixed front tire was used (orange/pink), and compound was only run on the back tires after they were cleaned off. Try a mixed compound in the front. I believe Contact or Ellegi still make them.

Stiffness is the name of the game, and the plastic bulkheads are going to put you at a major disadvantage. Not impossible to drive - but foam on carpet does not appear to be what this car was designed for.

What spring and swaybar are you currently running? Very interested to hear how this car does on carpet w/ foams.
Currently stock springs, no swaybar.
I'm fairly new to the touring part of RC, I've only raced offroad for a few years now
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Old 01-31-2016, 05:39 AM   #949
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I measure my droop by putting the chassis on droop blocks, remove the wheels, and read the number on the droop gauge underneath the carriers (also called hubs). I don't un-mount the shocks when measuring the droop.
There is actually no need to use droop blocks and droop gauge here, as the chassis is completely flat. So you get the same result with the ride height gauge and chassis laying on the ground without wheels. You have to use the exact same spot every time and on both sides to be consistent. Everybody measures it slightly different so keep that in mind when using setup sheets.
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Old 01-31-2016, 10:57 AM   #950
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I'm still having issues with the biff leaking. I tryed the techneak that was sugested but still leaks. I want to replace it with a better one from a different manufacturer. Any one know of one that will fit with littel to no modification? I've heard that X-Ray & some Tamiya parts were compatable. But i'm hoping one of you will have the answer I'm looking for.
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Old 01-31-2016, 11:05 AM   #951
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When you say it is leaking, is the stuff splattering everywhere? If the diff just appears "wet", but still has oil inside it, that is an acceptable diff. Not ideal, but acceptable.

ScuffyRuss, didn't you build an Ultimate? I'm pretty sure that it is the same diff, but with a 40T pulley. Sounds like you may have got a bad 38T pulley.
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Old 01-31-2016, 11:15 AM   #952
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You are correct. It's just becoming an incredible nuisance to have to rebuild and try and reseal the diff after every race day. Plus its getting everywhere. If i can't replace it, my last resort is to try an automotive sealer of some kind. I don't want to but i'm allmost out of options.
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Old 01-31-2016, 11:24 AM   #953
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Unfortunately my Ultimate diff desided it wants to leak now too. It lasted for over a year defore it leaked. It may just need a new gasket. The XI on the other hand has me stumped.
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Old 01-31-2016, 11:29 AM   #954
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Sounds like something is preventing you from torquing down the diff - it may be stripped.

SAK-XS110D

It's a new diff housing and diff pulley for the Xi Sport (38T). It cost me $6. The alternative is to try and email hong kong to warranty the diff. But for 6 bux, this may be an easier solution.
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Old 01-31-2016, 11:36 AM   #955
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It an all new diff, everything. It's not stripped but I am scared that I will strip it if I go any tighter with the srews. I do have a new case on the way. If I have forgoten to mention where it leaks, it's the gasket not the outdrive seals.
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Old 01-31-2016, 06:48 PM   #956
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Just finished building mine today will see how it does next weekend
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Old 01-31-2016, 11:04 PM   #957
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Looking good.

I see the foams are not cut. What is your ride height?
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Old 02-01-2016, 02:43 AM   #958
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Looking good.

I see the foams are not cut. What is your ride height?
Haven't set yet ...what would be a good ride height for smooth asphalt? ??
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Old 02-01-2016, 08:11 AM   #959
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Just finished building mine today will see how it does next weekend
What body is this please?
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Old 02-01-2016, 09:48 AM   #960
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Someone mentioned that you can use the Yokomo Springs for the Sakura. Anyone using stiffer springs? Dont want to spend lot,just want to try if stiffer springs are more useful at my local small track.
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