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Help regarding the purchase of GR86

4979 Views 9 Replies 7 Participants Last post by apex, Aug 31, 2021

Nialin

Discussion Starter · Aug 30, 2021

Hello all o/

I’m new to this forum, and I’ll jump straight to the questions becausr I am in a bit of a dillema haha 🤣

So I’ve been eyeing this new GR86 for a while, but currently I’m driving a 2018 Clio RS Trophy Stage 1, and am wondering if GR86 would be an upgrade or a downgrade? I really miss the manual transmition (also owned a 2015 Megane Trophy Stage 1) but i’m not sure I’m willing to trade for a slower car. Would they be pretty comparative regarding power, and are these boxers easy to tune? I know I can’t expect power gains in the same realm as turbocharged engines but every bit helps.

I would install a less restrictive cat and better exhaust. Would achieving 250bhp and 280-290 nm of torque be achievable by doing an ECU tune after?

Thanks for all the help! 🥰

Nia

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Gojarino

· #2 · Aug 30, 2021

Disclaimer: I did not own a previous-gen BRZ or GT86, but I have done some research.

Short answer is that we don't know yet. It's a brand new generation with a new engine that we don't understand yet. The new 2.4L could handle mods very well or it couldn't. Time will tell.

Long answer is that for the numbers you're looking for, a less-restrictive cat, better exhaust, and a tune probably won't get you it. On the last gen platform, unequal length headers, an exhaust, and a tune from an OpenFlash tablet netted around 20-30 horsepower and fixed the torque dip. The last gen made around 170bhp. This gen will probably make between 180 and 190bhp. To get that extra 60hp you're looking for, it would have to be a pretty sweet tune.

Hopefully someone who has real experience tuning the FT86 platform can give a better answer.

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Nialin

Discussion Starter · #3 · Aug 30, 2021

Gojarino said:
Disclaimer: I did not own a previous-gen BRZ or GT86, but I have done some research.

Short answer is that we don't know yet. It's a brand new generation with a new engine that we don't understand yet. The new 2.4L could handle mods very well or it couldn't. Time will tell.

Long answer is that for the numbers you're looking for, a less-restrictive cat, better exhaust, and a tune probably won't get you it. On the last gen platform, unequal length headers, an exhaust, and a tune from an OpenFlash tablet netted around 20-30 horsepower and fixed the torque dip. The last gen made around 170bhp. This gen will probably make between 180 and 190bhp. To get that extra 60hp you're looking for, it would have to be a pretty sweet tune.

Hopefully someone who has real experience tuning the FT86 platform can give a better answer.

Thanks for a great answer!

I guess it’s better if I just wait a year or so and see what’s what. I might just get Megane Trophy but they will only make EDC versions now which sucks. I really hope this 2.4 is nice to tune haha

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Gojarino

· #4 · Aug 30, 2021

Nialin said:
Thanks for a great answer!

I guess it’s better if I just wait a year or so and see what’s what. I might just get Megane Trophy but they will only make EDC versions now which sucks. I really hope this 2.4 is nice to tune haha

I would go test drive one when you can anyway. These cars are slow, yes, but the whole ethos of the FT86 platform is that they handle near perfectly. You'd struggle to find a better handling platform for under $100,000. Better to drive a slow car fast than a fast car slow, blah blah blah.

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Achording

· #5 · Aug 30, 2021

Gojarino said:
Disclaimer: I did not own a previous-gen BRZ or GT86, but I have done some research.

Short answer is that we don't know yet. It's a brand new generation with a new engine that we don't understand yet. The new 2.4L could handle mods very well or it couldn't. Time will tell.

Long answer is that for the numbers you're looking for, a less-restrictive cat, better exhaust, and a tune probably won't get you it. On the last gen platform, unequal length headers, an exhaust, and a tune from an OpenFlash tablet netted around 20-30 horsepower and fixed the torque dip. The last gen made around 170bhp. This gen will probably make between 180 and 190bhp. To get that extra 60hp you're looking for, it would have to be a pretty sweet tune.

Hopefully someone who has real experience tuning the FT86 platform can give a better answer.

I have a first gen. Anything above 30 hp you're going to basically be looking into FI. All the possible NA mods that will potentially put you anywhere above 30hp will be extremely expensive with little to no more gain.
HKS already has their prototype supercharger developed since their reveal at Fuji Speedway. This should be plenty to get into the +50 hp range. People were making 250+ whp on E85 with it on the first gen.

Like you said, rarely anyone has had access to the new car, so everything is pretty much skeptical.

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Reactions: 2

Jeonsa

· #6 · Aug 30, 2021

Nialin said:
Hello all o/

I’m new to this forum, and I’ll jump straight to the questions becausr I am in a bit of a dillema haha 🤣

So I’ve been eyeing this new GR86 for a while, but currently I’m driving a 2018 Clio RS Trophy Stage 1, and am wondering if GR86 would be an upgrade or a downgrade? I really miss the manual transmition (also owned a 2015 Megane Trophy Stage 1) but i’m not sure I’m willing to trade for a slower car. Would they be pretty comparative regarding power, and are these boxers easy to tune? I know I can’t expect power gains in the same realm as turbocharged engines but every bit helps.

I would install a less restrictive cat and better exhaust. Would achieving 250bhp and 280-290 nm of torque be achievable by doing an ECU tune after?

Thanks for all the help! 🥰

Nia

I say give it a test drive, most friends I had who tried to go from a more powerful car into a 86/BRZ couldn’t get over the power difference but it could be different for other people.

Always good to take your time and research after the car is released, a lot of people fall for the new car hype without considering other options.

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Reactions: 2

WRBBRZ

· #7 · Aug 30, 2021

Nialin said:
Hello all o/

I’m new to this forum, and I’ll jump straight to the questions becausr I am in a bit of a dillema haha 🤣

So I’ve been eyeing this new GR86 for a while, but currently I’m driving a 2018 Clio RS Trophy Stage 1, and am wondering if GR86 would be an upgrade or a downgrade? I really miss the manual transmition (also owned a 2015 Megane Trophy Stage 1) but i’m not sure I’m willing to trade for a slower car. Would they be pretty comparative regarding power, and are these boxers easy to tune? I know I can’t expect power gains in the same realm as turbocharged engines but every bit helps.

I would install a less restrictive cat and better exhaust. Would achieving 250bhp and 280-290 nm of torque be achievable by doing an ECU tune after?

Thanks for all the help! 🥰

Nia

I’d say 250bhp would be possible, but definitely not whp without forced induction.

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DRFT86

· #8 · Aug 30, 2021

WRBBRZ said:
I’d say 250bhp would be possible, but definitely not whp without forced induction.

I would honestly say with the CAI and CBE with possibly more to be offered you could potentially gain about 8 hp from factory. So 240hp should definitely be an easy reality with 250hp being easily achievable with an ECU tune later down the line which could yield upwards to 20-30hp

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Reactions: 1

apex

· #9 · Aug 31, 2021

Welcome to the forum @Achording!
What do you have done to you first gen? Any pics?

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apex

· #10 · Aug 31, 2021

Welcome to the forum @Nialin.
Would you get air/fuel mods like a cold air intake/short ram intake, exhaust, and others? It can help to get more power, even just an air intake alone with the ECU tune.

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