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Post by dave632 on Feb 24, 2021 12:21:26 GMT -7
Unlimited 4G entries for the Winter Nationals. Not to fast but they are both pushing 30 MPH in the low 5s at 20 volts.  Unlimited entries 3/21 |
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Post by GTS on Feb 24, 2021 12:46:20 GMT -7
Gale I have found that the weight will effect ET but not the speed as much. I guess getting the weight moving especially with the lower powered cars shows more in the ET dept. I have not found this to be so true when running a high powered chassis, such as a 2.5 or Unlimited. In some cases there the heavier car was quicker, probably because of better traction. Yeah, makes a difference with this one. Ran a 1.004 without a body at all. Stickin' with the Mustang, managed to grind a gram out of it without any damage. |
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Post by dave632 on Feb 24, 2021 13:38:01 GMT -7
New set of brushes got mine back where it was. Now running .97s @ 14 + MPH again.
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Post by skillet on Feb 24, 2021 14:44:55 GMT -7
You guys are killing it. Im finding it tough to get under a 1.1 et on this stock 4gear. landing all over 1.1 something. I found an arm at 14.6 was so happy I messaged jj about it. It turned out to be a big turd after I ran it. I got one hitting 1.108 ill keep working on it. Got my fingers crossed my track is just a little slower lmaooooo...
Since my timmer is working I can really see how much things effect the car. A little piece of fuzz on the tire and the et drops a fraction.
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Post by dave632 on Feb 24, 2021 17:17:26 GMT -7
No doubt about it Sam the track is the best tuning tool. 1.1 is actually good for a stock 4 gear, it's just that everybody is looking for a little extra. What MPH are you running? That will indicate horsepower and tell you if the car is losing it in the early stages. A stock 4 gear only runs about 10 MPH. If you are doing better than that you are ahead of the curve. In the past couple of months I sold a stock 4 gear, old AFX style, that was running 1.1 and almost 13 MPH with nothing done to it. I did not save it but I should have, it was very smooth. Did not think I had any use for it.
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Post by AJR on Feb 24, 2021 17:33:50 GMT -7
You guys are killing it. Im finding it tough to get under a 1.1 et on this stock 4gear. landing all over 1.1 something. I found an arm at 14.6 was so happy I messaged jj about it. It turned out to be a big turd after I ran it. I got one hitting 1.108 ill keep working on it. Got my fingers crossed my track is just a little slower lmaooooo... Since my timmer is working I can really see how much things effect the car. A little piece of fuzz on the tire and the et drops a fraction. Sam try playing around with tire size. Also get away from the Stock 4 gear rear wheels if you can. They are junk. I only use the Jag DR-1 rear wheels or stock AFX/AW. My stockers woke up when I went to an AFX wheel. I agree with Dave once again. 1.10 is not bad for a stock 4 gear. Check your brush bores too. Sticking brushes cause a lot of inconsistency in those cars as well. You may have already done all of this?? |
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Post by ecbill on Feb 24, 2021 18:01:54 GMT -7
Gale I have found that the weight will effect ET but not the speed as much. I guess getting the weight moving especially with the lower powered cars shows more in the ET dept. I have not found this to be so true when running a high powered chassis, such as a 2.5 or Unlimited. In some cases there the heavier car was quicker, probably because of better traction. Yeah, makes a difference with this one. Ran a 1.004 without a body at all. Stickin' with the Mustang, managed to grind a gram out of it without any damage Weight may not be the only issue. Anything that pinches, rubs, twists or distorts the chassis can slow you down. One of my Tjet style Dash Camaro bodies was slowing a car down if the screws were tight, ran ok with screws loose. Turns out that the base of the windshield was touching the top rails of the gear plate. That little bit of distortion was enough to have a dramatic affect. |
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Post by skillet on Feb 24, 2021 21:26:51 GMT -7
Dave im not 100 percent on how its reading the mph. I did alot of research and its been changed around some. The last I think was in the segments it shows from start to that sensor. Then the last segment what ever you want reads from that sensor to finish. But im not sure how it ended because the guy text me that he is still changing things in the program.
Im just tickled to death having times.
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Post by skillet on Feb 24, 2021 21:31:49 GMT -7
I've tried different tires out Jeff. I ended up going with viper 4gear don't know what size. I used masking tape around the rim to get max height. I agree with you on the rims. I did sand the wobble out of them in a drill best I could. Rims are definitely on the shopping list.
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Post by dave632 on Feb 25, 2021 8:17:14 GMT -7
MPH on my system uses a speed trap at the finish just like the full size tracks use. It is a useful tuning tool. I use the stock AFX rims but I trim them down with a blade to get the wobble out of them. ET however is still the most important item.
I have all my cars ready for Jeff's race. My PSO is a little off but still running good enough right now. Will probably try a new set of motor brushes in it. 4GS picked up even more but we will see what happens at the race. I am not touching that again.
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Post by skillet on Feb 25, 2021 16:00:33 GMT -7
Looked through some info again. If you look at my 60 ft and 660ft the mph is from start to that specific sensor. Then the 1000ft mph box is from the 660 sensor to the finish.
If im reading correctly thats how it works right now. I got more sensors coming for 330ft and I think I will be able to move the speed trap how ever I want as long as it is after the 660 ft.
I think Al was saying the speed trap is around a foot. Ill look more into that once I have more sensors.
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Post by skillet on Feb 25, 2021 16:03:39 GMT -7
Got my kiwi et under 1.1 I'd like to knock of a touch more but definitely happy with the direction it's going.  |
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Post by AJR on Feb 25, 2021 17:44:44 GMT -7
Got my kiwi et under 1.1 I'd like to knock of a touch more but definitely happy with the direction it's going. Right on Sam! Very respectable ET! |
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Post by dave632 on Feb 25, 2021 19:05:10 GMT -7
Looks like you are heading in the right direction. As Al said the speed trap at the end of the TrackMate system is 1 foot.
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Post by dave632 on Feb 26, 2021 15:02:06 GMT -7
Sam I was trying to figure out how it was figuring out the MPH going from the start sensor to the various sensors?? as there usually has to be a speed trap to get MPH. Seems to be working OK and 12.2 MPH is not to bad. I would work on getting the 60' down without losing to much speed. Try different traction magnets and heights along with tires. If you have a magnet tester try and find some better ceramic motor magnets. Nothing to strong or that will kill performance also, especially in a stocker. I put some poly magnets in the old PSO Rebel and it took 3 MPH off the top end. Did cut the 60' down some but not enough to make up for the lost top end. They were some strong poly's however reading in the 1800-1900 range. I think some 12-1400 would have worked well.
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