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Post by Eagle Racing on Apr 16, 2011 14:07:29 GMT -7
There is no subsitiute for horsepower, an old hot rod saying. However you do have to make it all hook up. I just got my parts in for the two NF/C cars I am building for the race. The bodies are cast two 70 Camaro funny cars. Now to take the rolling chassis apart and clean each and every part. Then put it all back together and put it on the VRP Dyno to break in the motor. Once that it is done time to take a few horsepower measurements. To be continued.......... ;D
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Post by Eagle Racing on Apr 23, 2011 12:23:11 GMT -7
Well the motor is now broke in. Now to make since of the VRP Dyno number. You can look at your reading at different volts and see the increase and call it a day. What fun is that. I downloaded a real 1 to1 dyno software program. What I now can do is read torque, rpm and horsepower at different volts now it is really fun.
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Post by Eagle Racing on May 5, 2011 15:27:03 GMT -7
Here is the info on my car I sent in for the test n tune.
Volts Torque HP RPM
5 52 6 582
8 75 43 3013
11 115 104 4745
13.8 145 170 6174
Flywheel HP - 170
Weight (lb) - 2.30 ET 1/4 1.45
In the program I enter the number from the VRP Dyno as torque in the program, and the actual rpm that I read with a laser digital tachometer. You input those numbers and the program gives you horsepower. That your horsepower number and enter it as flywheel hp and the weight of car (23 grams I input as 2.30 lbs - I already knew the cars time was 1.45 so I just played with the weight numbers till I saw the right times and thats how I knew to enter it in the program as 2.30 lbs.)
Did all of this help me build a fast car HA, HA, HA, NO. Is this fun YES. So here I am in my 1st proxy race ready to start paying my dues and learn something. Oh my motor ohms out at 15.7 its all I got, so if 14 ohms is tops you can bet money on it somebody has got a couple that will ohm pretty close to that. Hey thats drag racing.
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Post by Eagle Racing on May 5, 2011 15:30:29 GMT -7
Man those numbers moved. Hey read between the spaces.
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Post by ninjatek on May 5, 2011 16:41:50 GMT -7
Man those numbers moved. Hey read between the spaces. Here are your results in table form. | Volts | Torque | HP | RPM | | 5 | 52 | 6 | 582 | | 8 | 75 | 43 | 3013 | | 11 | 115 | 104 | 4745 | | 13.8 | 145 | 170 | 6174 | | | | | | | Flywheel HP - 170 | | Weight (lb) - 2.30 | | ET - 1.45 (1/4 mile) |
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Post by bondoman2k on May 5, 2011 17:23:57 GMT -7
Wow! Yep, numbers look impressive! But, like you said, a 'dyno' test is not a 'race'..LOL.  But, you never know! ;D Hopefully, I can still get one done in time for the race itself. Not sure yet, my time is really limited right now. And, I still haven't actually 'signed up' since I'm not too sure I'll get it done. Building an all new car from the one I raced last time. Body might end up being the same one, not sure yet.  And, the arm in mine actually ohms out at 14.1 on all 3 poles. Ron (Bondo)  |
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Post by Deleted on May 5, 2011 18:06:01 GMT -7
yes those numbers are impressive but the old sayiny is did you ever see a dyno go down the track mac
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Post by Eagle Racing on May 5, 2011 19:58:13 GMT -7
Thanks Nijatek for the number table. Actually guys those numbers are not really that good. If you were to take readings on Bondos armature at 14.1 you would see some real impressive numbers. My car is a real basic middle of the pack car unless everybody else has those arms. Then I am sucking wind. The point of the numbers is if your motor ohms in that area that is what you can expect. If your motor ohms better then you know your numbers will be better even if you do not have the equipment to measure it. It is just a point of reference and I hope it helps. Good luck to everyone in the race.
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Post by Deleted on May 5, 2011 20:08:46 GMT -7
I'm not trying to argue here just relay my experience. That might be a rule of thumb but I have found that how you match up components has more to do with the value of an arm then it's ohm's. I have had arms that ohm low, be are turds, and arms in the 17's be missiles. Just my penny and a half Thanks Nijatek for the number table. Actually guys those numbers are not really that good. If you were to take readings on Bondos armature at 14.1 you would see some real impressive numbers. My car is a real basic middle of the pack car unless everybody else has those arms. Then I am sucking wind. The point of the numbers is if your motor ohms in that area that is what you can expect. If your motor ohms better then you know your numbers will be better even if you do not have the equipment to measure it. It is just a point of reference and I hope it helps. Good luck to everyone in the race. |
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Post by Eagle Racing on May 5, 2011 20:33:25 GMT -7
I agree, if you cann't put together right it will be a turd. The numbers are just a reference point. Lots of things go into building a fast car. Oh, lets not forget the curse of the slot car box. You ran it last night it was a rocket and you put it up, the next time you run it it's a turd.
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Post by Eagle Racing on Nov 5, 2014 14:45:45 GMT -7
Time to setup my dyno and do a little motor testing. As has been pointed out before matching up your best parts is a huge part of building a fast car, stay tuned pics and info to follow.
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But, you never know! 
