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Old 02-07-2014, 01:24 PM   #571
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I recently looked over the Xray tuning guide and saw that there is a difference between droop and downtravel/downstop settings. I Hear everyone talking droop but they are measuring the bottom outside of the arms with referrence to the bottom of the chassis. As I understand it, this is not droop rather it's downtravel. Anyone care to comment?

Yes, it is confusing when you start using droop blocks and a droop guage. To me droop is the distance the chassis moves upwards til the tires just break the surface and the car being at race ready weight. Then I believe the more the chassis has an upward movement the more droop it has. Using a droop gauge and blocks the larger the numbers become the less droop the chassis will exhibit and the vehicle weight has no consideration. I use the blocks and guage to make an accurate adjustment as to left and right being the same setting after I use the lifting of the chassis in the middle(front and rear) to set my desired droop. I look at the droop gauge numbers just to compare left to right and not as an actual setting number.

Some cars do have a chassis downstop set screw but our car does not. I think XRay may be refering to the downstop of the suspension arms and not the chassis.

Now I got myself cornfused. Lol
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Old 02-07-2014, 01:28 PM   #572
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I think what i was refering to is actually technically downstop but soo many people call it droop. This describes it well.i think.

Both "droop" and "down stop" are effectively the same thing. It's just chassis up travel measured by two different methods. Chassis up travel will effect your front to rear weight transfer more than anything.

The further one end of the chassis is allowed to travel up the more weight it transfers to the other end. Under braking your rear droop setting dictates how much weight is transfered away from the rear tires to the front tires. Under acceleration your front droop setting dictates how much weight is transfered away from the front tires to the rear.

You generally see foam tire set up sheets measuring droop as actual chassis up travel. Such as "1mm over ride height". The general range seems to be anywhere from almost 0 to 3mm when measuring like this. Foam tire setups are measured like this because the droop needs to be readjusted as ride height is raised to compensate for constantly wearing foam tires. As stated earlier you would measure this by lifting one end of the chassis and measuring the distance before the wheels actually lift off the ground with a ruler. The best way to lift the chassis it to set one end of the chassis near the end of a table, place the tip of a hex driver under the end of the chassis, and press down on the handle of the hex driver like a seesaw. This works better than trying to lift by hand.

On the other hand, rubber tire setups, are often measured with the down stop gauge. Rubber tires obviously don't change diameter so measuring with a down stop gauge is just easier. You will usually see this measurement in the 4-6 mm range.
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Old 02-07-2014, 06:42 PM   #573
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Very well put.
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Old 02-09-2014, 03:49 PM   #574
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20races on the new shafts and not even a slight sign of a bend. No play either.
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Old 02-09-2014, 06:19 PM   #575
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Any news on a new motor mount
One that will allow for easier motor adjustment
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Old 02-09-2014, 07:53 PM   #576
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Default Damage race report

I had a few hard full speed corner hits on rigid corner boards. This type of hit normally would break stuff. Nothing broke but both alum chubs bent slightly. They are easily straightened by just removing the wheel and grabbing the chub with needle nose and twisting them back into place. It's easy to see when they are bent by looking straight down at them and noting the portion where the camber link connects. This section should be parallel with the center line of the lower suspension arm.

I have all the updated parts installed. These parts are the beefier steering spindles, aluminum chubs and gen3 DJCs. Also the rear alum hubs suffered zero damage.
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Old 02-10-2014, 03:47 AM   #577
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Motor installation.isnt too bad. Just open up one of the holes in the spur slightly
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Old 02-10-2014, 09:19 AM   #578
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Also a 2.5mm ball end hex driver will facilitate. I've gone as tall as a 3.23 fdr using that XRay 92t 64p offset spur and a 54t pinion. I don't quit understand why the usable 64p spurs are not available by the major car manufacturers. They seem to be stuck on still offering the large brushed motor spurs.
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Last edited by rcwck; 02-21-2014 at 06:36 AM. Reason: moinfo
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Old 02-11-2014, 10:25 AM   #579
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Thinking of getting one of these to replace a 6.1 WC. How do I know if I get the new or old c hubs in the kit that I buy? Are there any upgrades (or parts prone to breakage) recommended to purchase when I buy the kit? Thanks all.
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Old 02-11-2014, 10:29 AM   #580
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Thinking of getting one of these to replace a 6.1 WC. How do I know if I get the new or old c hubs in the kit that I buy? Are there any upgrades (or parts prone to breakage) recommended to purchase when I buy the kit? Thanks all.
All the current kits have the updated parts, so no worries on that now.
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Old 02-11-2014, 01:37 PM   #581
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Just ordered me another car.
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Old 02-12-2014, 05:06 AM   #582
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Thinking of getting one of these to replace a 6.1 WC. How do I know if I get the new or old c hubs in the kit that I buy? Are there any upgrades (or parts prone to breakage) recommended to purchase when I buy the kit? Thanks all.
I would recommend aluminum chubs and rear hubs. Kydex front bumper helps lots. Review this forum for more info. Alum part numbers are 22306 and 22307. Replace stock parts when needed.
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Old 02-12-2014, 05:10 AM   #583
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Just ordered me another car.
USGT car? You guys coming back to race soon? We had 2 heats of VTA the last couple weeks. Weather has been nasty lately.
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Old 02-12-2014, 05:17 AM   #584
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USGT car? You guys coming back to race soon? We had 2 heats of VTA the last couple weeks. Weather has been nasty lately.
usgt to replace the one I took from there to run vta. lol. hoping to make it this weekend. Between the weather, work, and some family stuff, been real busy. Things are hopefully slowing down here so I can get some more racing in.
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Old 02-16-2014, 08:56 PM   #585
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