1300 Kg Track SUPRA project

josbeat

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I found the solution
yes the battery will be behin the pasenger buckett but it will be a race battery brand Odyssey, small , light and no need a sealed box so it can be fitted at any location and they are saying that they are good for AEM cars! jejeje
 

josbeat

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I have found BRAILE batteries the most durable, lightest and reasonably priced for our motors. I've had mine since 2009. Here is a link: http://www.braillebattery.com/index.php/braille/product_batteries/b2015
and its going well for daily drive? start the 3.0 l turbo engine well ??
a company send me today this , the Varley Red Top 30 11 kg http://www.varleyredtop.com/products_batteries.htm
11 kg but they say well for alternator charging and to star engines over 3.500 cc engines

but I was thinking to fit the Oddysey pc680 7 kg
dont know what to do
 

josbeat

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I found your battery here in europe so it is the choice
thanks
 

atmperformance

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all my experience with braille has been horrible, We carried them when i worked for EDO and i spent 2 or 3 days a week jump starting shop cars that had a braille. maybe it was the lack of constant driving and charging but i grew to hate them.
 

Van

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and its going well for daily drive? start the 3.0 l turbo engine well ??
a company send me today this , the Varley Red Top 30 11 kg http://www.varleyredtop.com/products_batteries.htm
11 kg but they say well for alternator charging and to star engines over 3.500 cc engines

but I was thinking to fit the Oddysey pc680 7 kg
dont know what to do
Yes, the BRAILE 2015 has been starting my car daily, in temps as low as 10 degrees F for the past four going on five years. We typically have near freezing weather for three months (December, January and February). Additionally, we get hot too over 100 degrees F for maybe a couple of weeks, and then again it doesn't have a problem starting the Supra.
 

atmperformance

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I might have to give these things another try then. I do maintain my cars better than that shop did.
 

josbeat

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I ll go foward and try out the lithium battery
Braille UK dosnt answer my emails, the shipping cost to bring one from there in USA is ridiculous so I will test other options
 

josbeat

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on the right side we need to move the wiper water bottle, but it is a oportunity to move it to other place and to use an small one.
 

BlackDevilSupra

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^^^
The front fender rear exit is a great idea, as there is substantial high pressure zone in the rear or the fender that'll contribute to some degree of frontal downforce resistance. Will be interesting to see what your final solution is.
 

josbeat

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I think it wil be nice you`ll see





At the back with a corvette air duct and channeling like this.


at the moment I will use one of the front brake duct hole to feed extra cool air to the filter
 

josbeat

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yes I was looking it van those fender have the desing short , it may be lke this---- http://www.botbnews.com/wp-content/uploads/2010/11/DTM4.jpg
folowing down the exits till the skirts.
that is what I want o do but also I will bend in the fender to joint with the chasis closing a big space there and will be perfect for the air flow exit.
soon photos
I dont know If i am explaining it well
 

josbeat

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really nice !

before and after = 10 kg less and more start power

 

josbeat

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Really? Awsome. What capacity is that?
720 Ah cranking power and 24 Ah hour like a 48 Ah acid battery
but is incredible how start now! I tried several times and allways same power and also the alternator shows 14,3 volt very quickly so it indicate that the battery no need to load the alternator ( remember I have an electric power steering)
only 6 Lbs!! others have more cranking power but less AH or more weight or needs more volt to keep the charge.... after many hour in the computer this was my choice (I have no comission jajajaja)
I will keep posting the result of this battery.
 

Rollus

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Hum, it is a LifePo4 battery?

Do it has an internal charging/protecting circuit?

Reading their FAQ, I don't understand if it is safe to charge it wth alternator.
 

Rollus

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OK, I have the answer:
How do I charge the battery?
The Antigravity Battery comes ready to install, and start the bike/vehicle. We do offer a specific “smart”Lithium battery chargers that are specifically for charging Lifepo4 Lithium batteries. We have a 4-amp and a 8-amp charger as well as 2 Optimate Chargers. All will charge the battery to it’s intended peak voltage and will shut off when the battery is charged.
You should NOT use a automobile or motorcycle charger that is specific to Lead/Acid batteries! They can cause damage to the batteries because they charge in a different way than a specific Lifepo4 Lithium Charger. They often have a Desulfinate feature or over voltage “Quick Charging” feature… both of which will damage the Antigravity Battery. Lead Acid charges in many case will overcharge a lithium battery ending up in damage which is not covered under our warranty.
LiFePo4 can take some abuse, but it is not a good idea to charge it with the alternator I think.
I know for sure LiPo (another technology), can burn if abused during charging or discharging.

Both require a specific charger because charging process is different from lead-acid.

But finally...
What is the range of voltage for the batteries
The Antigravity Battery normal voltage is 13.2v. The battery will read up to 14.7V immediately after charging. The normal operating range will read between 13.3-14.5V. After a few hours it will self balance to the 13.3-7 range which is its normal state of charge. The maximum voltage the battery should be exposed to is 14.7V. On the lower end of the voltage range the battery should be put on a charger if the battery voltage gets drops below the 12.5V range while sitting. The voltage should not be allowed to drop below 10.5V while at rest. Permanent damage will occur at below 10.5 volts..
So these battery should have an internal circuitry I think.

Did you get some documentation with it?
 

josbeat

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it is a dailly driving battery so well for car alternator charging but not for Acid quick chargers, if it needs to be charged the use of a special Lithium battery charge needed.
they not recomend it for a passengers car otherways if you remember to dont left the car with the lights on or the radio playing with the engine off.
I also bought they starter booster XP1 , it work really well and it can be charged directly from a car cigarret conection ( I´d tested)
I bought as weel a lithium charger , the BC lithium7000 charger whish is capable of recovery empty lithium batterys or almost they promis that.
I´ll check if it came with any type of instruction or detailed carasteristic , I been busy and sick with the stupid Flu so dont remeber if I viewed it.

If you read the customers reviews , a guy with a Ferrari is using it and he is happy happy .

keep in contact because I have a race in 3 weeks and i need to drive the car 600 mls plus the race .
 
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josbeat

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Any one have used the EVANS engine coolant ???
I bought it to test it , with all of the mods in the cooling system I have , I don t have temp problems but also I don t like to have stress on the colling system so I´ll see.
I will need to pay antention if the water is running well through all pipes , turbo.... but if it cool down the system more than now I will have more problems on the public roads... will see.
 
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josbeat

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the worth thing for my is to be sick with a laptop connected to internet jajajaja

also I bought this flush mount beam because I made some airflow test with the sport camera and the stock ligths open produce a lot of turbulences and like I have to have the light on when racing ... I decided to save some other lbs and change the front lights
the measurements are very very close , just few mm bigger so not a problem

http://embraceracing.com/flushmounts.php
 

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Rollus

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Thanks for explanation about batteries..

the worth thing for my is to be sick with a laptop connected to internet jajajaja

also I bought this flush mount beam because I made some airflow test with the sport camera and the stock ligths open produce a lot of turbulences and like I have to have the light on when racing ... I decided to save some other lbs and change the front lights
the measurements are very very close , just few mm bigger so not a problem

http://embraceracing.com/flushmounts.php
You could make your with a Styrofoam block, some wood, a lexan glass, your wife's oven, and your wife's vacuum pump.
Search thermoforming, you could reproduce what the Fiero guy is showing in his video..

Nice tank
 

josbeat

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Thanks for explanation about batteries..



You could make your with a Styrofoam block, some wood, a lexan glass, your wife's oven, and your wife's vacuum pump.
Search thermoforming, you could reproduce what the Fiero guy is showing in his video..

Nice tank
good to know , I have no idea, thanks
 

josbeat

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no , no thecnical datas with the battery only warnings and safety instructions.
 

josbeat

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thanks!
keep an eye on it because soon it will have more interesting upgrades.
 

SeeUSmile

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love the fuel tank placement for better center of gravity! and best safety feature to prevent this from happening.

[video=youtube;cRLWxFm3pjE]https://www.youtube.com/watch?v=cRLWxFm3pjE[/video]
 

josbeat

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the only risk is if a small leak on the fuel connections but thats way it will be closed and vented to outside of the car .
soon more photos.
will be really difficult to have a strong hit to the tank there , really really difficult .
same placement like many race cars .... Prosport3000 , Aston Marting Vantage....
 

SeeUSmile

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the only risk is if a small leak on the fuel connections but thats way it will be closed and vented to outside of the car .
soon more photos.
will be really difficult to have a strong hit to the tank there , really really difficult .
same placement like many race cars .... Prosport3000 , Aston Marting Vantage....
Yeah those cars back in the day had their tanks mounted in the boot hence as to why they changed over to that at 2013. Just haven't seen it done to an a70 yet and loved how you done it to yours.
 

josbeat

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Thanks!

finally today the tank is ready for the first try, and if all is ok then close the top with some screws and ready.

but in between I finished the camber and roll center adjustment at the front , the problem is now the back , with the car very low ia lost the roll center at the back and I cant see the solution for it... I have allready cutted the top of the bushing so the subchassis is higger now but need more, will see how it goes.
-5º of camber adjustable to -7º more than I want , I want to have from -3 to -5º








my supra is moving to the track side to much , if i want negative camber for track .... on the public road will be a street tyres destroyer.
I am now using all my brain to try to finde a solution for it, a easy way to get a normal camber when I am driving to the track and back , and move the camber to a good value when stay inside the closed track.
the solution really is to have a Trailer to go to the tracks and using the car for funny on certain week-ends not going to far , only to drive to take the breakfast on my favorite mountain road.
thats will be perfect , the problem is the driver license , i need the big trucks license and time to go to the driver school so.... dont know when.
with the trailer big mods will be made on the supra including the glasses and many more things.
 
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josbeat

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too much camber fixed doing the wishbone adjustment hole biggers, now it is going from -1,5º to -7º and the most important is the roll center perfect with the chassis set at 80 mm of the ground.

today : fuel tank tested and coolant system prepared to be filled with the new special Evans water.



 
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