Full throttle Electric Supercharger Build Thread - Page 319 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Gary in NJ · 04-21-2014, 04:15 PM

Quote:

Originally Posted by WNDSRFR

I've been thinking a lot about batteries lately.

What do you guys think about the Power-Sonic starter battery?
Have you ever had a problem starting the car?
I ask you this because I've never had a problem with it but I live in Florida and I notice a lot of you live in the frozen north. Or the really cold northwest.

I'm totally impressed how such a relatively small and light weight thing can replace the anchor of the stock battery.

So... Any bad stories?

No problems. Cranks a little slower then OEM, but gets the job done every time. I didn't drive my car in the winter, parked it for 5 months. In 40 degree weather (garage) it held a charge for 4 weeks and I was able to start. When I went back 6 weeks later it didn't start the car. I'm not sure if the OEM would have either.

robwbright · 04-21-2014, 04:18 PM

Quote:

Originally Posted by Gary in NJ

No problems. Cranks a little slower then OEM, but gets the job done every time. I didn't drive my car in the winter, parked it for 5 months. In 40 degree weather (garage) it held a charge for 4 weeks and I was able to start. When I went back 6 weeks later it didn't start the car. I'm not sure if the OEM would have either.

I'll be curious about actual winter conditions. Here in Ohio we normally see a lot of 20-30 degree temps with a few days/nights below that. This past winter, however, was considerably colder.

Urmyson · 04-21-2014, 04:19 PM

Quote:

Originally Posted by WNDSRFR

I've been thinking a lot about batteries lately.

What do you guys think about the Power-Sonic starter battery?
Have you ever had a problem starting the car?
I ask you this because I've never had a problem with it but I live in Florida and I notice a lot of you live in the frozen north. Or the really cold northwest.

I'm totally impressed how such a relatively small and light weight thing can replace the anchor of the stock battery.

So... Any bad stories?

I used an 925 odyssey battery, it all fit into the stock battery tray.

WNDSRFR · 04-21-2014, 05:18 PM

I was thinking about increasing my dump battery amperage to get more power.

It seems like the most cost effective way to do this would be to get another starter battery and parallel it to the existing starter battery and parallel that to the existing dump batteries. This would more than double the available power.

Then get another starter battery and mount it remote from the dump pack dedicated just for starting the car.

But WHY???

Really!!!

The dump pack can do both.
Just tap off 12 volts to the starter.

Think about it.

Gary in NJ · 04-21-2014, 05:39 PM

Quote:

Originally Posted by WNDSRFR

The dump pack can do both.
Just tap off 12 volts to the starter.

Think about it.

I think the issue with that is asymmetrical charge and discharge.

mid_life_crisis · 04-21-2014, 08:37 PM

Quote:

Originally Posted by Gary in NJ

I think the issue with that is asymmetrical charge and discharge.

Wired properly, you could put all the batteries in parallel during starting then split off the dump pack once the car is running. Doesn`t seem worth the trouble considering that all the guys who live in the cold zones made it through the winter.

fenton · 04-22-2014, 11:25 AM

Updated first post with Shiv's dual dump pack results. This is the same tune that is used for single dump pack with the only change being slightly higher boost.

2013 FRS 6MT
Mods:
TQ250 with dual dump battery configuration(starter relocate to trunk)
OpenFlash Tablet
OpenFlash Header
Single tip cat-back
Modified air duct
93oct (although the it's mapped conservatively enough to make the same power on 91oct)
[Stock run shown for reference]

robwbright · 04-22-2014, 11:46 AM

Wow. Nearly 220/195 on 93oct. If measured at the crank, that would be what, about 270/240?

BRZlimited · 04-22-2014, 11:52 AM

Is this put for sale yet?

Sent from my SCH-I535 using Tapatalk

Luckrider · 04-22-2014, 11:52 AM

Closer to 260hp actually assuming 15% loss. Almost as much power as the amazing (Wards 10 best multiple years in a row) 3.6L Pentastar V6 that we have in our 5,000lb Grand Cherokee.

robwbright · 04-22-2014, 11:56 AM

Quote:

Originally Posted by Luckrider

Closer to 260hp actually assuming 15% loss. Almost as much power as the amazing (Wards 10 best multiple years in a row) 3.6L Pentastar V6 that we have in our 5,000lb Grand Cherokee.

I was assuming 20%, but that may be too high.

Luckrider · 04-22-2014, 12:01 PM

20% is too high based on most of the dynos showing stock power at 170whp which would be 15%

fenton · 04-22-2014, 12:14 PM

Quote:

Originally Posted by BRZlimited

Is this put for sale yet?

Sent from my SCH-I535 using Tapatalk

Yes it is. Contact info for Rob is on the first post

Sent from my HTC One using Tapatalk

robwbright · 04-22-2014, 12:17 PM

Quote:

Originally Posted by Luckrider

20% is too high based on most of the dynos showing stock power at 170whp which would be 15%

Good point.

04-22-2014, 11:46 AM	#4460
robwbright Senior Member Join Date: Dec 2013 Drives: '13 BRZ Limited WRB Phantom ESC 1.5 Location: Middleport, OH Posts: 720 Thanks: 277 Thanked 243 Times in 165 Posts Mentioned: 7 Post(s)	Wow. Nearly 220/195 on 93oct. If measured at the crank, that would be what, about 270/240? __________________ '13 BRZ Ltd MT WRB Phantom ESC 1.5 2012 Honda Accord Coupe 2006 Saab 9-3 2.0t 1997 Honda Accord Coupe 1995 Honda Prelude VTEC

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04-21-2014, 05:18 PM	#4456
WNDSRFR Senior Member Join Date: Jan 2014 Drives: FR-S,GTI Location: Cocoa, Florida Posts: 1,193 Thanks: 239 Thanked 875 Times in 445 Posts Mentioned: 13 Post(s)	I was thinking about increasing my dump battery amperage to get more power. It seems like the most cost effective way to do this would be to get another starter battery and parallel it to the existing starter battery and parallel that to the existing dump batteries. This would more than double the available power. Then get another starter battery and mount it remote from the dump pack dedicated just for starting the car. But WHY??? Really!!! The dump pack can do both. Just tap off 12 volts to the starter. Think about it.

04-22-2014, 11:25 AM	#4459
fenton Senior Member Join Date: May 2012 Drives: 2013 FR-S Location: Calgary Posts: 2,086 Thanks: 526 Thanked 1,614 Times in 726 Posts Mentioned: 120 Post(s)	Updated first post with Shiv's dual dump pack results. This is the same tune that is used for single dump pack with the only change being slightly higher boost. 2013 FRS 6MT Mods: TQ250 with dual dump battery configuration(starter relocate to trunk) OpenFlash Tablet OpenFlash Header Single tip cat-back Modified air duct 93oct (although the it's mapped conservatively enough to make the same power on 91oct) [Stock run shown for reference]

04-22-2014, 11:52 AM	#4461
BRZlimited Member Join Date: Mar 2014 Drives: 2013 Subaru BRZ limited Location: United States Posts: 72 Thanks: 3 Thanked 17 Times in 11 Posts Mentioned: 1 Post(s)	Is this put for sale yet? Sent from my SCH-I535 using Tapatalk

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