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Old 09-01-2013, 01:12 PM   #1396
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I have been running the V2 for a couple of months at various venues and have been having a hard time running with the top guys. Most of the cars competing are running F103 size tyres but last night I added 200 grams to the car which brought the weight up to 1280g and was able to run with the front runners at last. The extra weight allowed me to attack the track harder.
I was wondering if other people have experienced this. When you look at the various set ups that are available there is no weight of car shown.

Bob
I added about 15 grams to rear and it seemed to really help, not 200 grams though.
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Old 09-01-2013, 01:15 PM   #1397
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I am currently carrying 45g under the rear shaft.

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Old 09-01-2013, 06:41 PM   #1398
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http://rsector.com/index_eproduct_vi...products_id=12

You can try our high traction system
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Old 09-01-2013, 07:21 PM   #1399
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http://rsector.com/index_eproduct_vi...products_id=12

You can try our high traction system
I'm running exotek's new 2.5mm chassis for F104V2, will this still work?..
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Old 09-01-2013, 07:23 PM   #1400
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How do you like the exotek flex chassis?
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Old 09-01-2013, 08:21 PM   #1401
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How do you like the exotek flex chassis?
Seems to work well for me, cut down on rollovers on extreme high byte carpet tracks for sure. I mainly got it because i was involved in a bad wreck which caused some delamination on edges near rear motor pod. If you need a new chassis i would get it but otherwise im not sure i would spend the money.
Two things i noticed:
1. If you use newer Tamiya reinforced side links or Associated Side links, the end that goes near aluminum battery posts rubs and you need to take off a little of the material from either aluminum posts or side links otherwise your side links will have a little bind.
2. Since chassis is .5mm thinnner, the original side link screws are a little long.
You can't use a 2.5mm hex to hold pivot ball while you tighten screw. I installed some Associated side like screws off 12R5.2 which are .5mm shorter than stock Tamiya screws
Both of these slight problems are easily fixed. I have not tried the optional side link mounting position yet.
Outstanding Product and like I said above, if you need a new chassis i would get this over Tamiya stock replacement
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Old 09-01-2013, 09:51 PM   #1402
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Quote:
Originally Posted by OLD ONE View Post
I have been running the V2 for a couple of months at various venues and have been having a hard time running with the top guys. Most of the cars competing are running F103 size tyres but last night I added 200 grams to the car which brought the weight up to 1280g and was able to run with the front runners at last. The extra weight allowed me to attack the track harder.
I was wondering if other people have experienced this. When you look at the various set ups that are available there is no weight of car shown.

Bob
I have to ask, why so much weight to the car?
I am trying to figure out how to reduce the front wheel hop on my car, i added caster and it seemed to help, and was considering adding weight...
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Old 09-01-2013, 10:07 PM   #1403
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Originally Posted by edhchoe View Post
I am currently carrying 45g under the rear shaft.
Wow, what surface are you on?

My car was very underweight and so to get the added weight low and locking down the rear I got the RSector pod plate set up. Their pod plate, diffuser, and brass weights are really well made, and with them on carpet I couldn't traction roll if I tried, however, it was way too much weight in the rear and once it started to swing out, there was no stopping it. The back end would shutter and swing causing spins.

On the rug, seemed like the lighter pod was better.
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Old 09-01-2013, 10:48 PM   #1404
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Last week, the car was felt very good with slight understeer on asphalt with TCS front and R1 rear tires (track temp: 95-110).
And yesterday, it felt very balanced on carpet with 574/572.

Gold springs front/ black springs+diff grease roll damper. Height: 5.4mm f/r.
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Old 09-02-2013, 04:54 AM   #1405
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Cadman 1981,
The reason for the weight added was taken from the weight of other cars that we compete against and the track surfaces we race on, they are not high grip as compared to a lot of other tracks. The cars that are the main competition for me are Tamiya F103's and FGX both of these cars are close to 1300 grams in race trim.
The main issue I have had with the F104 has been drive out of corners and entry speed into them. We have a lot of drivers running the newer generation of cars from most manufactures, but they all chose to run the F103 size tyres.
My decision to try the weighting of the car has come from looking at the fact of the tyre patch I run with 104 tyres and patch of a 103 tyre, the other motivation that was over the years I have run MO3 minis and found that 180 grams of lead in the rear made the car fast.
I feel the the results from my testing have shown that the weight is needed to generate mechanical grip with the track through the tyres. We are running 21.5 blinky and even with all the weight the car has lost no straight line speed.
I am at tyhe moment trying different mounting points for the weight to gauge the proper positioning ultimate results, the main issue I have found was too much weight over the rear was causing inconsistant high speed grip, what I have tried to do was maintain close to the original front to rear % as possible.
Will let you know how testing goes this weekend.

Bob
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Old 09-05-2013, 10:55 AM   #1406
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An intereseting post by BP SHADOW on facebook

"An F104V2 with an Exotek flex chassis conversion, it solves a lot of issues with the V2.

The problem that I have experienced with the V2 is that if the setup is spot on the money the car works well, but if its off even just a bit the car is near impossible to drive. I ran the Exotek setup down in Texas and the car was just a dream to drive all weekend. I was going to run my 103 but the Exotek V2 was so good I stuck with it."


Have you guys experienced this as well? Has anyone tried the flex chassis?
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Old 09-05-2013, 11:16 AM   #1407
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Does he say what tires? If he was "going to run his F103" that suggests to me FOAMS
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Old 09-05-2013, 12:37 PM   #1408
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He meant the Exotek Flex in the end, and on rubber

"When I say the Exotek V2 , that is the flex chassis, and it works awesome, not only will it turn in better, but it doesn't have the tendency to traction roll like the stock car"
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Old 09-06-2013, 09:40 AM   #1409
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Quote:
Originally Posted by Cadman1981 View Post
An intereseting post by BP SHADOW on facebook

"An F104V2 with an Exotek flex chassis conversion, it solves a lot of issues with the V2.

The problem that I have experienced with the V2 is that if the setup is spot on the money the car works well, but if its off even just a bit the car is near impossible to drive. I ran the Exotek setup down in Texas and the car was just a dream to drive all weekend. I was going to run my 103 but the Exotek V2 was so good I stuck with it."


Have you guys experienced this as well? Has anyone tried the flex chassis?
I run the Exotek 2.5 chassis on my V2 and the car was more consistent for sure
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Old 09-06-2013, 10:51 AM   #1410
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I think he is a little to extreme. The car is not that edgy if the setup is a little wrong. At least this is my experience. The strongest improvement with this chassis is a dampened front axle. Once you inert the axle the car can be driven much faster into the corner.

...just my two cents
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