High RPM for current speed - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

HachiRo · 04-01-2015, 11:25 PM

First, I'm not sure where to post this, but it's sortve related to the engine so yeah..

This is my first 4 cylinder car and also my first ManTran, so I'm not sure if it's normal or something's up with my car. Is it normal for the car to be around 3k RPM when driving 70mph?
On my older Accord and 5-series (98 and 97), 70mph was closer to 2.5k RPM.

navanodd · 04-01-2015, 11:27 PM

Yeah, that sounds correct. My auto reads 2k at 60mph and the manual is geared a bit more aggressively.

Thorpedo · 04-01-2015, 11:28 PM

Yes, its normal.

Tank · 04-01-2015, 11:28 PM

Quote:

Originally Posted by HachiRo

First, I'm not sure where to post this, but it's sortve related to the engine so yeah..

This is my first 4 cylinder car and also my first ManTran, so I'm not sure if it's normal or something's up with my car. Is it normal for the car to be around 3k RPM when driving 70mph?
On my older Accord and 5-series (98 and 97), 70mph was closer to 2.5k RPM.

Yes, that's normal.

Teseo · 04-01-2015, 11:43 PM

Yup, 70mph at 3000 rpm in 6th gear

HachiRo · 04-02-2015, 04:49 AM

Awesome! Thank you everyone :P Definitely some stress off my mind.

Bonburner · 04-02-2015, 06:44 AM

its not normal ... its just the way our car is set up though .. normally most cars are not that high RPM when on the highway
for the twins it is normal for the manual transmissions, auto is a bit lower (i haven't actually checked but from the gear ratio im guessing it is)

ajc209 · 04-02-2015, 07:06 AM

formula one cars idle at 6k rpms....

This is a high revving engine (compared to most road cars with ~6k rpm red line) so gear ratios are ajdusted accordingly to take advange of those rev's and put down a bit more torque....

3Krpm is only 40% of total revs. 2400rpm is 40% of 6K.....

2016 Camaro SS · 04-02-2015, 08:40 AM

4:10 gear ratios on the manual is the reason your RPM is higher.

Auto is a 3:83 I think??? Reason why it gets a little better highway gas mileage, but the manual is faster.

Koa · 04-02-2015, 09:24 AM

Jesus...

Tcoat · 04-02-2015, 09:35 AM

Quote:

Originally Posted by Koa

Jesus...

MAPerformance · 04-02-2015, 11:43 AM

Perfectly normal. Try my S2k with 4.77 gears. 5k at 70mph

continuecrushing · 04-02-2015, 01:46 PM

I sit at around 800rpms at 70mph

When coasting

Digitalanalog · 04-02-2015, 01:58 PM

The rear diff ratio is the same for auto and manual.... 4:10. The 6th gear ratio in the transmission is lower with the autos than manuals.

04-01-2015, 11:25 PM	#1
HachiRo Senior Member Join Date: Aug 2014 Drives: 2013 White-Out FRS Location: San Jose, CA Posts: 697 Thanks: 243 Thanked 211 Times in 142 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	High RPM for current speed First, I'm not sure where to post this, but it's sortve related to the engine so yeah.. This is my first 4 cylinder car and also my first ManTran, so I'm not sure if it's normal or something's up with my car. Is it normal for the car to be around 3k RPM when driving 70mph? On my older Accord and 5-series (98 and 97), 70mph was closer to 2.5k RPM.

04-01-2015, 11:28 PM	#3
Thorpedo The SquadWhisperer Join Date: Mar 2013 Drives: '13 Ultramarine FR-S (STX) Location: Nova Scotia, Canada Posts: 681 Thanks: 383 Thanked 477 Times in 207 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Yes, its normal. __________________ 2013+14+15 Atlantic Region Motor Sports Autocross STX Champion 2013+14+15 Atlantic Region Motor Sports Overall Autocross Champion 2017 Bluenose Autosport Club Overall Rallycross Champion Powered by Great North Performance, Jani-King Canada, and OK Tire.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Hood flutter at high speed	TheseColorsDontRun	Suspension \| Chassis \| Brakes -- Sponsored by 949 Racing	20	09-10-2013 10:39 AM
Scion FR-S completely ruined during a high-speed chase	vh_supra26	Scion FR-S / Toyota 86 GT86 General Forum	2	07-05-2013 12:09 PM
Brakes unless at high speed - what to tackle?	empower-auto	Suspension \| Chassis \| Brakes -- Sponsored by 949 Racing	44	10-12-2012 05:06 PM
Video: BRZ / FR-S High Speed Run to 124 MPH (200 km/h)	Levi	BRZ Photos, Videos, Wallpapers, Gallery Forum	43	05-16-2012 12:37 AM
Casey Stoner high speed cornering at 1000fps	tranzformer	Off-Topic Lounge [WARNING: NO POLITICS]	6	08-01-2011 04:20 PM

04-01-2015, 11:27 PM	#2
navanodd Senior Member Join Date: Nov 2013 Drives: 2013 BRZ Sport-tech WRB Location: Nova Scotia Posts: 308 Thanks: 95 Thanked 171 Times in 102 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Yeah, that sounds correct. My auto reads 2k at 60mph and the manual is geared a bit more aggressively.

04-01-2015, 11:43 PM	#5
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,877 Thanks: 7,153 Thanked 2,922 Times in 1,769 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	Yup, 70mph at 3000 rpm in 6th gear

04-02-2015, 04:49 AM	#6
HachiRo Senior Member Join Date: Aug 2014 Drives: 2013 White-Out FRS Location: San Jose, CA Posts: 697 Thanks: 243 Thanked 211 Times in 142 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Awesome! Thank you everyone :P Definitely some stress off my mind.

04-02-2015, 07:06 AM	#8
ajc209 Senior Member Join Date: Dec 2011 Drives: GT86 Cosworth Location: UK Posts: 753 Thanks: 361 Thanked 270 Times in 188 Posts Mentioned: 9 Post(s) Tagged: 1 Thread(s)	formula one cars idle at 6k rpms.... This is a high revving engine (compared to most road cars with ~6k rpm red line) so gear ratios are ajdusted accordingly to take advange of those rev's and put down a bit more torque.... 3Krpm is only 40% of total revs. 2400rpm is 40% of 6K.....

04-02-2015, 08:40 AM	#9
2016 Camaro SS Senior Member Join Date: Nov 2014 Drives: Fast Location: Austin, Texas Posts: 790 Thanks: 114 Thanked 407 Times in 241 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	4:10 gear ratios on the manual is the reason your RPM is higher. Auto is a 3:83 I think??? Reason why it gets a little better highway gas mileage, but the manual is faster.

04-02-2015, 11:43 AM	#12
MAPerformance Senior Member Join Date: Aug 2012 Drives: Asphalt FRS Location: Cottage Grove, MN Posts: 1,272 Thanks: 669 Thanked 981 Times in 540 Posts Mentioned: 84 Post(s) Tagged: 3 Thread(s)	Perfectly normal. Try my S2k with 4.77 gears. 5k at 70mph

04-02-2015, 01:46 PM	#13
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s) Tagged: 2 Thread(s)	I sit at around 800rpms at 70mph When coasting

04-02-2015, 01:58 PM	#14
Digitalanalog Senior Member Join Date: Mar 2014 Drives: '13 BRZ Limited, '95 BMW M3 Location: Colorado Posts: 104 Thanks: 13 Thanked 67 Times in 25 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	The rear diff ratio is the same for auto and manual.... 4:10. The 6th gear ratio in the transmission is lower with the autos than manuals.

User Name		Remember Me?
Password