allen_okc wrote:im told i'll get two good runs off the four dry cell 12volt 17ah bats... when i get to the track i'll top off the batteries, that should heat them up a bit...
The person you're getting battery advice from is an idiot. I wouldn't put those batteries in an electric wheelchair for my Grandma, because I would just have to listen to her complain about the weight and low performance.
If your charging heats the lead, you're damaging it, and it's not going to perform nearly as well as if you heated it with a heating pad, and just charged it appropriately.
And I understand having a tight budget, but this really is a very very poor choice in battery that will cripple the performance of your machine (both in weight and power) until you buy something suited towards racing.
In other words, you're just going to end up re-buying the batteries if you want it to perform worth a damn, and this time you will have even less money because you wasted some of it on lead.
Take it from a guy who has played the re-buying it game in racing more than his share of times. So, in the Honda racing scene, the axles are a weak-link. You can spend anywhere from $89 for Napa free replacement axles clear up to $6,000 for custom axles. So, like most folks, I started out being more interested in spending money making more power, and wanted to just spend as little money as possible on things like axles. My goal was to just spend the least amount to get something that would work. So, buying 2 sets of the free replacement Napa axles seemed like a good idea, because when they break you bring it back and get a new one free. One of the local racing shops had advised me to buy the stage 5 axles right from the start for $2200usd... I was like, you guys are nuts! I'm never paying that much for stupid axles, they are $89 at Napa and when they break you get to swap it out for a new one!
So, the Napa axles kinda work on street tires but it's annoying to have so many trips at the track botched from needing to pull your axles, drive to the store, exchange them, put them back in, try to run again, break them again, go back to the store etc... So, I ended up buying 3 sets of them at $89 each thinking I could get them to work for me, and having spares on hand for quick replacement as they broke. So, $534 in axles, and I could generally last a full saturday of racing if I didn't mind swapping them out multiple times at the track.
But, when you switch to slicks, you can't get a single pass down the strip on the Napa CV-joint axles anymore,
Time to buy some after-market axles. Find the cheap pair of no-name "racing axles" for $350 (so now I've spent $534+$350 on axles). Go to track, start burn-out to heat up tires, on the roll-out of the water box, TING! Axle breaks, car does a little 45deg spin in the water box. lol Normally the Napa axles can at least get to the starting line before they shatter...
Ok, look for the cheapest reputable racing axles... They are $550 for the Stage II axles that are suposed to be twice as strong as the stock axles yadda yadda special alloys, bigger bearings etc. Buy them, install them, and go racing. Burn-out/waterbox is all fine, make 6 passes down the track on saturday, I'm happy. More tuning Saturday night, improve the tune a bit, come out Sunday, first pass my fancy $550 axles shatter.
Damn Damn Damn. Now I've spent $534+$350+$550 on axles, and I still can't get a weekened of racing in...
So, I'm looking at the different racing axle options... and I see the Stage 5 axles for $1850 bucks, and then you have to buy custom machined hubs for another $350 so these giant axles can fit. I'm thinking to myself, damn, that would be so stupid to spend $2200usd on axles... The stage 2 axles lasted a day for me, so I will bite the bullet and jump up to the stage 4 axles for $950 bucks, and I should be set for life.
So, they come, they are beefy, I'm happy, I run them for a couple track weekends, many street passes, and I'm pleased. But... on the second month of owning them, they snap at the track again.... I called the company and told them I'm making less than the 700hp they are supposed to handle, and I only had them for 2 months, and yadda yadda, and they of course said that the shock loading from launching on slicks can put huge stress on things etc etc (like I didn't know that lol) and that nothing for racing can be warrantied etc. So, at this point I've spent $534+$350+$550+$950 on axles, which is $2,384, and I still don't have an axle that works for my car... I was pretty damn bummed about it. The car sat for about 6 months while I saved up and thought about WTF to do about it.
So, finally, I bit the bullet and bought the custom billet hubs made to accept the enormous custom axles that cost $1850 bucks + $350 for the custom hubs that allow them to fit. That extra $2,200 on top of all ready spending $2,384 on axles really hurt the budget. Ended up paying $4,584 to end up with the $2,200 axles...
But, they don't break anymore, the car works, it can run full events as often as I want on those axles, and they have held up like a champ, no signs of stress cracks or anything on them yet.
So, I learned a lesson from this axle ordeal. When you're racing, it's often cheaper to only buy the best right from the beginning, and only have to buy it once.
So, later, when myself and buddies were breaking gears in the tranny (because racing is always about pushing harder/faster etc), some friends bought the $800 cheapo racing gear sets, I just saved my money, and after a while, I bought the best PPG $4,500 straight-cut dogbox gearset on the market. And still do this day, it's held up great, and never missed a shift for me, while other buddies are on cheapo gear-set number 3-4 by now, and have to bring a spare tranny to the track with them for each event that they are serious about.
Take it from somebody with a little experience in this racing and battery game. You buy the lead blocks, you're not going to be happy with it, and you ARE going to end up buying it over again. Save yourself the long term money, wait and save up if you have to, but buy it right the first time and you will be a lot happier guy in the long run.