17LikesGT8 Class--buggy-based on road electric!
07-13-2010, 08:18 AM
#197
07-13-2010, 08:22 AM
#198
With 20 different available combinations of shore rating and foam densities (not including different front/rear combinations), what would be your recommendation for our DM-1s running on unprepared asphalt (as seen in the video)? Temperatures that day were about 70-75 degrees and are pretty typical of our so cal weather conditions.
07-13-2010, 08:33 AM
#199
Thanks Raman - That's the kind of info we need to share. And that may be what we need to get these things hooked up with the Ipanemas. I was running 45's all the way around that day and was maybe 40s would have been the ticket.
Now maybe Jeff can shed some light on the different foams and what they will do for performance.
Now maybe Jeff can shed some light on the different foams and what they will do for performance.
07-13-2010, 10:03 AM
#201
Tech Regular
EMP-6 road
Here's a slightly different way to configure a electric buggy based on road. Wy is 7 lbs,10 oz. Don
07-13-2010, 10:23 AM
#202
Regardless of rubber brand tire you use, you won’t get the best possible results from them using the incorrect shore/inserts for the track location & temps.
It hard to believe that using a radial slick tire made from pure & natural Brazilian rubber (not one made from recycled rubber/vinyl or plastic material blends), that has 5 different shore rating availability, 2 different foam insert densities to choose from and they couldn’t provide excellent traction on any track surface or on any type of GT car with our slicks.
Merely saying that a product didn’t work for you, is not a fair to GT racers or the manufacturer, it’s similar to someone stating that your products didn’t work and never gave you the opportunity to find out what they were doing wrong.
If you had or were, an Ipanema dealer in your area, that supported GT racing and our racing slicks, you would see that there’s a lot of reasons why real 1:1 race tire manufacturers insist on using only the best pure Brazilian rubber materials.
Rubber grows wild in Brazil, where does all that other “rubber” come from?
Our Radial GT slicks have won a ton of big GT races over the past 3+ years all across North America, there’s a lot of good reasons for that.
It hard to believe that using a radial slick tire made from pure & natural Brazilian rubber (not one made from recycled rubber/vinyl or plastic material blends), that has 5 different shore rating availability, 2 different foam insert densities to choose from and they couldn’t provide excellent traction on any track surface or on any type of GT car with our slicks.
Merely saying that a product didn’t work for you, is not a fair to GT racers or the manufacturer, it’s similar to someone stating that your products didn’t work and never gave you the opportunity to find out what they were doing wrong.
If you had or were, an Ipanema dealer in your area, that supported GT racing and our racing slicks, you would see that there’s a lot of reasons why real 1:1 race tire manufacturers insist on using only the best pure Brazilian rubber materials.
Rubber grows wild in Brazil, where does all that other “rubber” come from?
Our Radial GT slicks have won a ton of big GT races over the past 3+ years all across North America, there’s a lot of good reasons for that.
I ran 45 shore which is in line with the recommendation on the website for our temps (around 80 degrees). What would you have recommended?
07-13-2010, 12:26 PM
#203
07-13-2010, 12:41 PM
#204
Tech Regular
EMP-6 road
The motor is a Rimfire 42-60-600 outrunner. Wt. is 9.5 oz. KV is 600. I'm feeding it 19.6 volts via 6s A123 Li-Ion. So far I've run it in the street. It breaks all 4 tires loose easily and has a good top end-unfortunately I don't have a GPS. The base car is an MP-6. I still need to load the diffs with the proper wt lube. Don
07-13-2010, 01:07 PM
#205
Here are few ideas and questions that will help more.
First, what did the tires actually do and when in the run did they do it?
By this I mean, did they start off loose and get somewhat better as the run went on and the rubber heated up?
Did they start off good and loose traction as they warm up?
Both of these questions help determine not only shore for track temps, but for the way your track layout generates heat too.
Every time your car turns, friction generates heat. When real rubber gets “overheated” it looses traction just like real 1:1 racing.
Next up, what does the actual slick surface look like after the run?
This is the greatest indicator of what’s happening to the rubber and how your car’s suspension is working. You’d be surprised at how many racers have “camber” problems and the tires show it by wearing on an edge.
If the slick is riding on its edge most of the rubber is off the ground when it’s needed most and this condition will overheat the part of the slick taking the beating.
The slick’s contact patch should show the majority of its wear in the center.
Another thing the tires will show you is the rubber’s actual condition after the run. “Overheated rubber usually shows “tearing” or “graining” on the contact patch area.
If the car’s camber for your track is correct and the “graining” is in the center of the slick, then the rubber is getting cooked, which signifies shore rating is too soft.
If you find that the car’s suspension is providing an excellent contact patch area wear pattern and there is no sign of overheating on the rubber, then it is very possible that the shore selected could be too hard or the foam insert could be incorrect for your track.
Our medium foam inserts do a few things to our slicks. They allow the rubber to generate greater heat, they allow it to build quicker because of higher friction, they allow for more of a contact patch area. Softer foam increase rubber wear rates too.
Some of our customers prefer our medium inserts because they offer a wider “tuning window” and this helps them dial-in easier.
Once all of this has been determined for your track, GT racers won’t have to guess about what will work best for them too.
This is why we feel it is very important that our dealers are GT racers too. Our better dealers all use our products and this provide us with the best feedback possible to help their racer customers.
Hope it all helps & sorry for the long post.
Last edited by Jspeed; 07-13-2010 at 01:28 PM.
07-13-2010, 01:41 PM
#207
07-13-2010, 01:46 PM
#208
07-13-2010, 02:53 PM
#209
07-13-2010, 03:00 PM
#210
No problem, now if you can answer some of the questions I posted, we can figure out the best combos for your track and GT racers in your area will have all the traction they'll need.
Now if we can get a good dealer in California to support Ipanema products, racers will enjoy the quality tires that have won almost every big GT race in North America for the past 3+ years too.
All the best!
Now if we can get a good dealer in California to support Ipanema products, racers will enjoy the quality tires that have won almost every big GT race in North America for the past 3+ years too.
All the best!