HPI RCGT
06-23-2010, 06:38 PM
#1
HPI RCGT
Ok Folks, here they are. The new rules for RCGT have been approved. Hope you like them. Many of you had a voice in what was decided.
1. Bodies: Any 190mm or 200mm realistic GT type body (no touring class racing bodies such as Stratus or Mazda 6). Molded kit wings or aftermarket wings are highly suggested. Lexan wings must be of proportionate size. Lexan wings are not allowed in Concours.
2. Tires: HPI X-Pattern tires, part #s 4790, 4490 and 4495 are the official spec tire of RCGT. Alternate tires may be used at the race organizer's discretion, but all HPI supported RCGT events will use the x-pattern tires.
3. Inserts: For HPI X-Pattern tires the stock insert must be used. All alternate tires choices may use any insert. Race organizer may define specific choices.
4. Wheels: Any REALISTIC spoke type 26mm wheel may be used. No aero dish or lightweight racing wheels allowed.
5. Motors/Esc's: Any 21.5 or 17.5 brushless motor/esc as shown on the ROAR Sportsman list. In addition, the Speed Passion Cirtix 21.5 and 17.5 are allowed.
6. Chassis: Any 1/10 scale all wheel drive touring car chassis. Minimum weight requirement is 1475 grams.
7. Batteries: Any Lipo 2S packs up to a maximum of 5000mah. Hard case packs are highly suggested. (revised)
Big Thanks go to all of you who responded either by post or PM. I and Pete Waydo (reenmachine) have volunteered to act as a voice between the racers and HPI and to try and clarify rules questions as they come up. Really big Thankyou to Andy at HPI. If not for his continued interest we may have seen a great program go away.
We all hope the revised rules will help everybody continue to enjoy the RCGT program. I should also say that we'll do our best to consider and make revisions when necessary. We can't plan for everything but we'll try and catch up to them as quickly as possible. Thanks again to all of you !!!!
1. Bodies: Any 190mm or 200mm realistic GT type body (no touring class racing bodies such as Stratus or Mazda 6). Molded kit wings or aftermarket wings are highly suggested. Lexan wings must be of proportionate size. Lexan wings are not allowed in Concours.
2. Tires: HPI X-Pattern tires, part #s 4790, 4490 and 4495 are the official spec tire of RCGT. Alternate tires may be used at the race organizer's discretion, but all HPI supported RCGT events will use the x-pattern tires.
3. Inserts: For HPI X-Pattern tires the stock insert must be used. All alternate tires choices may use any insert. Race organizer may define specific choices.
4. Wheels: Any REALISTIC spoke type 26mm wheel may be used. No aero dish or lightweight racing wheels allowed.
5. Motors/Esc's: Any 21.5 or 17.5 brushless motor/esc as shown on the ROAR Sportsman list. In addition, the Speed Passion Cirtix 21.5 and 17.5 are allowed.
6. Chassis: Any 1/10 scale all wheel drive touring car chassis. Minimum weight requirement is 1475 grams.
7. Batteries: Any Lipo 2S packs up to a maximum of 5000mah. Hard case packs are highly suggested. (revised)
Big Thanks go to all of you who responded either by post or PM. I and Pete Waydo (reenmachine) have volunteered to act as a voice between the racers and HPI and to try and clarify rules questions as they come up. Really big Thankyou to Andy at HPI. If not for his continued interest we may have seen a great program go away.
We all hope the revised rules will help everybody continue to enjoy the RCGT program. I should also say that we'll do our best to consider and make revisions when necessary. We can't plan for everything but we'll try and catch up to them as quickly as possible. Thanks again to all of you !!!!
Last edited by Evoracer; 06-24-2010 at 01:18 PM.
06-23-2010, 06:42 PM
#2
Very Cool. 
06-23-2010, 06:57 PM
#3
7. Batteries: Lipo 2S packs up to a maximum of 5000mah and 30C. Hard case packs are highly suggested.
So.....What's the 30c battery of choice? (I know I opening a can of worms here )
So.....What's the 30c battery of choice? (I know I opening a can of worms here )
06-23-2010, 07:14 PM
#5
06-23-2010, 07:47 PM
#7
30C for the batteries? Why take a step back in tech? With the motors you are trying to spec and no timing advance there would not even be a noticeable difference from a 30C and a 50C. Hopefully my local track does not adopt these rules, as all of my batteries are 40C and 50C. Also minimum weight 1475? Again why? Back to filling the car with lead? More weight causes more parts failure when you wreck, and strains the motor and electronics more. If you want to help RCGT, do something to either make the tire cheaper, or spec the belteds since they last longer.
06-23-2010, 07:57 PM
#8
30C for the batteries? Why take a step back in tech? With the motors you are trying to spec and no timing advance there would not even be a noticeable difference from a 30C and a 50C. Hopefully my local track does not adopt these rules, as all of my batteries are 40C and 50C. Also minimum weight 1475? Again why? Back to filling the car with lead? More weight causes more parts failure when you wreck, and strains the motor and electronics more. If you want to help RCGT, do something to either make the tire cheaper, or spec the belteds since they last longer.
06-23-2010, 08:05 PM
#9
Sorry Donovan, in a way we are taking a step backward in technology. Performance wasnt the primary concern regarding batteries....it was price of entry. Everybody agrees that we need to keep getting new people involved and 100+ dollar batteries aren't the way to go. The weight was chosen as a mid point between VTA and TC. The x-patterns are the spec but at least now any group or individual can choose to use an alternate tire.
06-23-2010, 08:20 PM
#10
Different from what ?? We hope you'll stay involved and continue enjoying the class. If your local track decides to create or adopt something else there's not much we can do but we hope they'll see that the new rules aren't that much different from the old ones and are actually much better for the class as more experienced drivers like yourself concentrate on higher performance levels.
06-23-2010, 08:26 PM
#11
I think it would be great if everybody started giving reports on what tires they end up trying. There's stuff out there that I didn't even know existed. So if you try a particular brand of tire or compound please post what your experience was. This weekend I'll be trying out the HPI 4435 slicks with the molded inserts. Should be fun. Our concrete surface can be really different at varying temperatures and humidity levels.
06-23-2010, 08:54 PM
#14
30C for the batteries? Why take a step back in tech? With the motors you are trying to spec and no timing advance there would not even be a noticeable difference from a 30C and a 50C. Hopefully my local track does not adopt these rules, as all of my batteries are 40C and 50C.
Also minimum weight 1475? Again why? Back to filling the car with lead?
The only other thing that I don't like too much is that now I need to re-gear my TC4 way lower since we are nixing the timing advance. Most of the pinions and spurs I have were for the 6-8:1 FDR range, and now I have to buy a bunch of larger pinions and smaller spurs to get into 3-5:1 FDR range. Hopefully I won't have to grind out the chassis to accommodate those ridiculously large pinions.
06-23-2010, 09:09 PM
#15
Really don't think you'll have a problem running out your series. If I can make a suggestion, it sounds like you guys might like to continue running the class but your batts are basically the ones you use for TC. How bout getting together and ordering some inexpensive batteries and splitting the cost ?? Just an FYI, these Zippy's we mentioned earlier are like 25 bucks a piece.
I think you still have to grind a bit on the TC4. No big deal though. No timing /boost is pretty much the norm for even the non-HPI Gt programs.
I think you still have to grind a bit on the TC4. No big deal though. No timing /boost is pretty much the norm for even the non-HPI Gt programs.