Turbo hp vs. equivalent stock hp - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

drifter · 09-21-2012, 02:37 PM

Would there be a difference? Another words, if a simple turbo was added and produces 50 or 60 more hp, and, let's say the 2014 model BRZ/FRS stays non-turbo but adds 50 or 60 more hp. Would that mean they would perform the same in all aspects, i.e. 0-60, 1/4 mi? durabuility, safety?

Reason I ask is for the possiblity of me, and perhaps others, upgrading to next years model and maintain a 3 year warranty with no worries driving is CA.

thanks in advance...I've already learned so much from everyone here.

empower-auto · 09-21-2012, 02:42 PM

Quote:

Originally Posted by drifter

Would there be a difference? Another words, if a simple turbo was added and produces 50 or 60 more hp, and, let's say the 2014 model BRZ/FRS stays non-turbo but adds 50 or 60 more hp. Would that mean they would perform the same in all aspects, i.e. 0-60, 1/4 mi? durabuility, safety?

Reason I ask is for the possiblity of me, and perhaps others, upgrading to next years model and maintain a 3 year warranty with no worries driving is CA.

thanks in advance...I've already learned so much from everyone here.

Do you understand the undertaking in which adding 50 or 60 hp to an NA 2.0L 4-cylinder engine is?

Superhatch · 09-21-2012, 02:48 PM

The short answer is no. The torque differences would make them act differently under acceleration. If you could somehow squeeze out 50-60 more hp from the BRZ and still stay in NA trim the cost of that car would be significantly higher than the 2013 model...likely it would be called the STI.

I would expect to see -maybe- single digit HP gains, if any at all, in the 2014 model, and I'm not expecting an STI until...2015.

drifter · 09-21-2012, 03:06 PM

Quote:

Originally Posted by empower-auto

Do you understand the undertaking in which adding 50 or 60 hp to an NA 2.0L 4-cylinder engine is?

no, but based on your question, I imagine it would be quite difficult

empower-auto · 09-21-2012, 03:16 PM

Quote:

Originally Posted by drifter

no, but based on your question, I imagine it would be quite difficult

Well, with complete after-market intake/exhaust and ECU tuning we've still barely been able to scratch 200whp - so it's definitely a huge undertaking especially considering the car from the factory will have to be quiet, have a conventional air-box, and meet emissions laws.

GingerExtract · 09-21-2012, 03:16 PM

Torque curve. Most turbo cars can produce a nice flat curve while NA 4-bangers tend to have an ascension curve. Assuming they both had the "same" horsepower, generally speaking, the turbo car would accelerate faster.

drifter · 09-22-2012, 03:38 AM

Thanks, this is good info, makes me feel more comfortable considering a turbo

09-21-2012, 02:37 PM	#1
drifter Senior Member Join Date: Jun 2012 Drives: truck and old car Location: CA Posts: 295 Thanks: 120 Thanked 168 Times in 66 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Turbo hp vs. equivalent stock hp Would there be a difference? Another words, if a simple turbo was added and produces 50 or 60 more hp, and, let's say the 2014 model BRZ/FRS stays non-turbo but adds 50 or 60 more hp. Would that mean they would perform the same in all aspects, i.e. 0-60, 1/4 mi? durabuility, safety? Reason I ask is for the possiblity of me, and perhaps others, upgrading to next years model and maintain a 3 year warranty with no worries driving is CA. thanks in advance...I've already learned so much from everyone here.

09-21-2012, 02:48 PM	#3
Superhatch AIM4APX Join Date: Jun 2012 Drives: 2013 WRB BRZ Limited Location: Milwaukee Posts: 1,206 Thanks: 642 Thanked 749 Times in 324 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	The short answer is no. The torque differences would make them act differently under acceleration. If you could somehow squeeze out 50-60 more hp from the BRZ and still stay in NA trim the cost of that car would be significantly higher than the 2013 model...likely it would be called the STI. I would expect to see -maybe- single digit HP gains, if any at all, in the 2014 model, and I'm not expecting an STI until...2015. __________________ "It's very difficult to present technology as an overtly positive sales device to people who want an emotional car" -Chris Harris

09-21-2012, 03:16 PM	#6
GingerExtract actually races Join Date: Aug 2012 Drives: Mazda3 Location: Columbus, Ohio Posts: 47 Thanks: 1 Thanked 8 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Torque curve. Most turbo cars can produce a nice flat curve while NA 4-bangers tend to have an ascension curve. Assuming they both had the "same" horsepower, generally speaking, the turbo car would accelerate faster. __________________ Yes, that's my car in the avatar.

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09-22-2012, 03:38 AM	#7
drifter Senior Member Join Date: Jun 2012 Drives: truck and old car Location: CA Posts: 295 Thanks: 120 Thanked 168 Times in 66 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks, this is good info, makes me feel more comfortable considering a turbo

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