I thought about swapping in a 51R battery, but I dont see how a smaller battery will help with power, 28lbs is a good chunk, but I dont see it as a lot overall.
That .7lbs off the outter edge will magnify with RPMs
I thought about swapping in a 51R battery, but I dont see how a smaller battery will help with power, 28lbs is a good chunk, but I dont see it as a lot overall.
That .7lbs off the outter edge will magnify with RPMs
2018 mirage ES manual
__________________________________________
View my fuel log 2018 Mirage Es 1.2 manual: 41.6 mpg (US) ... 17.7 km/L ... 5.7 L/100 km ... 50.0 mpg (Imp)
Im trying to find more info...but the miata uses a 10.400 flywheel...might go look down that road??
2018 mirage ES manual
__________________________________________
View my fuel log 2018 Mirage Es 1.2 manual: 41.6 mpg (US) ... 17.7 km/L ... 5.7 L/100 km ... 50.0 mpg (Imp)
Power to weight ratio.
Stock = 2050 pounds and 74 hp = 27.7 pounds/hp
5% more power = 2050 pounds and 77.7 hp = 26.4 pounds/hp
5% less weight = 1947.5 pounds and 74 hp = 26.3 pounds/hp
5% more power AND 5% less weight = 1947.5 pounds and 77.7 hp = 25.1 pounds/hp
Power to weight directly determines how fast a car can accelerate. The lighter the car, the more effect increases in power have!
None of this matters for street use. But, in competition, tenths and hundredths of a second matter. It all adds up.
Simplify and add lightness.
Yeah, I understand killing off weight, but most vehicles that went with small batteries, changed to big batteries after a few years due to issues. But maybe the mirage is small enough to get a small battery to work? What are you thinking about using??
2018 mirage ES manual
__________________________________________
View my fuel log 2018 Mirage Es 1.2 manual: 41.6 mpg (US) ... 17.7 km/L ... 5.7 L/100 km ... 50.0 mpg (Imp)
Lightened flywheel is in. No problems. No "light flywheel" drivability issues.
The car feels a LOT peppier, but I made a lot of changes at the same time. The +4 hp 2017 engine, the flywheel with .8 pounds less mass around the perimeter, and 28 pounds less battery.
But, even with a 200 pound passenger, the car felt peppier!
Now that I have the dimensions of the Mirage flywheel, when I run out of other things to do, maybe I'll start looking for something of similar dimensions. I think getting that flywheel weight down to 7-8 pounds would be an awesome thing. (I've had 7 pound flywheels on Miatas... tasty)
Simplify and add lightness.
Daox (11-12-2018)
That is great to hear Loren. I'm glad you can actually tell a difference.
Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block
Current project: DIY Nitrous oxide setup for ~$100
__________________________________________
View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)