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Old 04-19-2017, 09:37 PM   #4231
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Generally I run more on asphalt, less on carpet. It will definitely change the way the car steers. Try a change and see how it feels to you.
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Old 04-30-2017, 08:59 AM   #4232
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A

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Old 05-05-2017, 04:47 AM   #4233
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Time to get the HPI Roadstar 10 back up and running...
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Pro 10: 235mm Le Mans Prototype Pan Car Discussion-20170504_214501.jpg  
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Old 05-05-2017, 07:44 AM   #4234
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Quote:
Originally Posted by 1/8 IC Fan View Post
Time to get the HPI Roadstar 10 back up and running...
Fabulous!
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Old 05-05-2017, 08:36 AM   #4235
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My VIP Vorlon had it's first test run last weekend at my local outdoor track.

It needed a new, narrower front plate to fit the Swift shell. 4mm narrower per side. So I integrated the servo mounts so that bumpsteer is unchanged with ride-height.

It's running 2S 13.5 blinky, primarily as I have those electrics from TC. My local track (Bedworth) is fairly small by european standards (50m straight), so the power was fine. When I go to a larger track (Cotswolds) I may run some turbo for the straights. Geared at 60mmpr for blinky which seemed about right.

Handling at high-speed was excellent, lots of grip from all that downforce. Could just about take the sweepers flat out. Through the low-speed sections it was only average, even on 25r/40f tyres. A shorty lipo improved it quite a bit, giving more turn-in and traction thanks to the rearward weight balance. It still needs more traction so I'll try thinner side dampers (they've got 350 in at the moment).

I was using Paragon FX2 additive which has worked well on foams outdoors before. Any suggestions for anything better on cool tracks?

The car was great fun, and at a high-speed circuit it's going to be awesome with all that downforce.
Attached Thumbnails
Pro 10: 235mm Le Mans Prototype Pan Car Discussion-17880511_10154936613031293_6593440220121246790_o.jpg   Pro 10: 235mm Le Mans Prototype Pan Car Discussion-17973838_10154936613441293_1123583055545086246_o.jpg   Pro 10: 235mm Le Mans Prototype Pan Car Discussion-17966477_10154936613831293_1734670826960744189_o.jpg   Pro 10: 235mm Le Mans Prototype Pan Car Discussion-17973546_10154936614101293_8232321432024434741_o.jpg   Pro 10: 235mm Le Mans Prototype Pan Car Discussion-17966328_10154936614551293_6282049928368972964_o.jpg  

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Old 05-05-2017, 09:15 AM   #4236
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nice looking car, the front body mounts are pretty cool
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Old 05-05-2017, 09:17 AM   #4237
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Run 250 in the side shocks and 450 in the centre shocks.
Tires 40 front and 35 or 30 rear
Springs on the side blue asso or a bit softer and centre spring go for the Tamiya yellow TC spring.
Front height at 5.2 to 5.5mm and rear 5.5 to 6mm.
Half degree toe out, 2 dregrees camber and 5 degrees caster.
Get a brace on the front side and mount the V- links in the highest position.
Should help a lot.

Regards Roy


Quote:
Originally Posted by daleburr View Post
My VIP Vorlon had it's first test run last weekend at my local outdoor track.

It needed a new, narrower front plate to fit the Swift shell. 4mm narrower per side. So I integrated the servo mounts so that bumpsteer is unchanged with ride-height.

It's running 2S 13.5 blinky, primarily as I have those electrics from TC. My local track (Bedworth) is fairly small by european standards (50m straight), so the power was fine. When I go to a larger track (Cotswolds) I may run some turbo for the straights. Geared at 60mmpr for blinky which seemed about right.

Handling at high-speed was excellent, lots of grip from all that downforce. Could just about take the sweepers flat out. Through the low-speed sections it was only average, even on 25r/40f tyres. A shorty lipo improved it quite a bit, giving more turn-in and traction thanks to the rearward weight balance. It still needs more traction so I'll try thinner side dampers (they've got 350 in at the moment).

I was using Paragon FX2 additive which has worked well on foams outdoors before. Any suggestions for anything better on cool tracks?

The car was great fun, and at a high-speed circuit it's going to be awesome with all that downforce.
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Old 05-05-2017, 10:03 AM   #4238
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Quote:
Originally Posted by Pro10noob View Post
Run 250 in the side shocks and 450 in the centre shocks.
Tires 40 front and 35 or 30 rear
Springs on the side blue asso or a bit softer and centre spring go for the Tamiya yellow TC spring.
Front height at 5.2 to 5.5mm and rear 5.5 to 6mm.
Half degree toe out, 2 dregrees camber and 5 degrees caster.
Get a brace on the front side and mount the V- links in the highest position.
Should help a lot.

Regards Roy
Already there on most of that. Side springs are 6lb/in.

Will try softer side dampers and a front brace, although there's not much flex there as I made the plate pretty stiff.

The track is med/low grip and there are some slow sections, so it's never gonna be ideal for a RWD pan-car. Here's a video of my TC at this track:

https://www.youtube.com/watch?v=q1PUWqD54yY&t=114s

The first half of the lap is great. But the second half with tight hairpins and chicanes is pretty slow so minimal downforce. I'll video the Pro10 next time I run it.

Dale
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Old 05-05-2017, 10:09 AM   #4239
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If you have your front end setup like in the pics above, then there is some to do there.
You have the caster at 10 and the top arms are to the front.
Set the caster to the middle position and the upper arms more rearward.
run some harder springs at the front to get more turn in and if you need more steering, lower the V-links.
If you missing all around grip in the lower corners try Spider red or speedtech tire sauce.

Regards Roy
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Old 05-05-2017, 12:57 PM   #4240
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Quote:
Originally Posted by Pro10noob View Post
If you have your front end setup like in the pics above, then there is some to do there.
You have the caster at 10 and the top arms are to the front.
Set the caster to the middle position and the upper arms more rearward.
run some harder springs at the front to get more turn in and if you need more steering, lower the V-links.
If you missing all around grip in the lower corners try Spider red or speedtech tire sauce.

Regards Roy
The upper arms are Xray, and have more castor than an AE arm, hence full forwards. What effect will reducing the dynamic castor have?

I have spider green, is that any use outdoors?
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Old 05-05-2017, 01:25 PM   #4241
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Less tire wear and easier car to drive.
Green is for foam on carpet so don't think it will do any good outside.
What brand tires are you using?
And what is exactly the problem?
Is the car pushing in the corners or over steering??

Regards Roy

Quote:
Originally Posted by daleburr View Post
The upper arms are Xray, and have more castor than an AE arm, hence full forwards. What effect will reducing the dynamic castor have?

I have spider green, is that any use outdoors?
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Old 05-05-2017, 03:01 PM   #4242
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Quote:
Originally Posted by Pro10noob View Post
Less tire wear and easier car to drive.
Green is for foam on carpet so don't think it will do any good outside.
What brand tires are you using?
And what is exactly the problem?
Is the car pushing in the corners or over steering??

Regards Roy
Tyres are Contacts.

There's no problem as such, the handling is about what I'd expect at low speed without much downforce. The main laptime gain will be from increased traction on exit, and a bit more mid corner steering.

Laptimes are already 1s faster than my foam tyre 200mm F1, which has had a lot of setup time. And only around 0.8s off TC.

The front upper link angle (camber gain/roll centre) is adjustable. On a TC more angle would improve turn-in and give more traction on exit. Is it the same on a pan car?
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Last edited by daleburr; 05-05-2017 at 03:26 PM.
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Old 05-05-2017, 04:51 PM   #4243
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These 235's are awesome!!! Gotta keep an eye out for a used one
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Old 05-05-2017, 04:58 PM   #4244
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I'm trying to buy a new kit, I would like to get the Roche P10W but can't get one.
What new kits do you guys recommend?
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Old 05-05-2017, 10:18 PM   #4245
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On the internet there is a pan car guide but can't find it at the moment
Yes your upper arm can be used for the same reason but we mostly use it for even tire wear and adjust accordingly.
For tires i am prevering the BSR line.
Very consistent and great grip.

Regards Roy

Quote:
Originally Posted by daleburr View Post
Tyres are Contacts.

There's no problem as such, the handling is about what I'd expect at low speed without much downforce. The main laptime gain will be from increased traction on exit, and a bit more mid corner steering.

Laptimes are already 1s faster than my foam tyre 200mm F1, which has had a lot of setup time. And only around 0.8s off TC.

The front upper link angle (camber gain/roll centre) is adjustable. On a TC more angle would improve turn-in and give more traction on exit. Is it the same on a pan car?
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