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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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05-11-2022, 07:01 PM | #1 |
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Powertrain options for track only
I have a track only BRZ with a tired motor and trans on its last leg. I got plenty of time out of it, so it's time for a powertrain refresh.
All I really care about is reliability and then cost. I'd rather pay more for more reliability, to a reasonable degree. Increased power isn't much of a goal, if any. So what does everyone recommend here? And where should I get it from? What year engines will be compatible? I have an early 2014, and it has the 2013.
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2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter 2016 GX460: IDK. Too reliable to sell. Too boring to use. |
05-11-2022, 07:37 PM | #2 |
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Best reliability would be to swap in a stock Honda K24 or a Ls motor.
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05-12-2022, 08:08 AM | #3 |
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That’s a lot more than I care to get into and this trans doesn’t need more power. I’d just buy a c5 race car at that point.
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2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter 2016 GX460: IDK. Too reliable to sell. Too boring to use. |
05-12-2022, 08:43 AM | #4 |
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Look at Element Tuning in Fla.
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The Following User Says Thank You to blsfrs For This Useful Post: | GrandSport (05-12-2022) |
05-12-2022, 08:59 AM | #5 |
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What year transmissions can I use? Is it just the gearing that changed?
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2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter 2016 GX460: IDK. Too reliable to sell. Too boring to use. |
05-12-2022, 10:11 AM | #6 |
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What’s your budget
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05-12-2022, 10:32 AM | #7 |
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I guess it depends. I figure I can get a new bottom end for around $2k. It’s the heads and trans that I haven’t much looked at lately.
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2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter 2016 GX460: IDK. Too reliable to sell. Too boring to use. |
05-12-2022, 11:29 AM | #8 |
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If you are happy with it just throw another shortblock at it and call it a day. Maybe add an oil pan baffle for some extra protection.
I am going through this now. Want a K swap, can't justify the cost yet. I'm just going to do a leak down and comp test, tear it down and check the rod and main bearings. Replace what needs replaced and send it.
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | GrandSport (05-12-2022) |
05-12-2022, 01:26 PM | #9 |
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The Following User Says Thank You to TommyW For This Useful Post: | GrandSport (05-12-2022) |
05-12-2022, 02:43 PM | #10 | ||
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Quote:
Quote:
It's really shocking how expensive a low mile long block is. I thought for sure I'd be able to grab a 30k mile crate for like $3k. More like double that for double the miles. Anyone know what year engines and transmissions I can use?
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2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter 2016 GX460: IDK. Too reliable to sell. Too boring to use. |
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05-12-2022, 04:10 PM | #11 |
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Transmissions are effectively the same across all years
Long block can be used across all years, but you will need to swap a few things from your old motor depending on year. There are some threads around here if you search the motor year you're swapping and the base year. I would personally not touch a motor that has been opened by anyone since it left the factory on these cars since they are already kind of hand grenades, but your mileage my vary. I went K24 and sold my 30k-ish mile motor as a long block for $3k. I think prices for these motors are higher than expected because they effectively only came in BRZ/FRS/86, cutting the donor pool significantly.
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05-12-2022, 07:32 PM | #12 | |
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Quote:
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | RedReplicant (05-12-2022) |
05-12-2022, 10:42 PM | #13 | |
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Quote:
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05-29-2022, 06:04 PM | #14 |
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So as an update, I couldn't find a better option than just a straight up new crate bottom end. I guess that it's hard to argue with +100 hard track hrs for $5k- maybe even 200 come to think of it.
As far as transmissions go, there seems to be an issue with McCloud clutches not 100% disengaging and killing synchronizers. Going to switch out something else and try again.
__________________
2014 BRZ: Full track car. Gutted, caged, coilovers, AP enduro, OMP, bolt ons, aero, etc,
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2018 GLE 63 AMG: +800hp whistling AWD TT V8 grocery getter 2016 GX460: IDK. Too reliable to sell. Too boring to use. |
The Following User Says Thank You to GrandSport For This Useful Post: | blsfrs (05-29-2022) |
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