OFT and Grams throttle body - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

86Speedy · 11-20-2016, 08:35 PM

so was curious, has anyone made a tune with this yet? or can?

steve99 · 11-20-2016, 09:23 PM

I dont think you would need to change anything.
The throttle body is downstream of maf sensor, if it actually flows better maf will detect extra air flow and ecu will adjust fueling based on more flow.

it might change the throttle feel as for same percent open throttle would flow more air but ecu\maf will sort out fueling, it just may make the throttle fell a little different

86Speedy · 11-20-2016, 09:58 PM

okay cool! ill update as i get more info then!

Kodename47 · 11-21-2016, 12:27 PM

You could adjust the throttle maps so it's not as reactive as it would be.

86Speedy · 11-28-2016, 09:45 PM

there is a difference in throttle response and it seems like it diffidently has taken in more air and based on the AFR tables it looks like everything is still in spec. 400 miles later everything is still seeming good

however I was curious if someone would like to see a data log and give me feedback and if its optional to adjust the tables could help me in doing so

thank you

Nah · 11-29-2016, 12:53 AM

Pm me or send it over. Also send over your current map so I can adjust your maf using the vgi scaling tool

Quote:

Originally Posted by 86Speedy

there is a difference in throttle response and it seems like it diffidently has taken in more air and based on the AFR tables it looks like everything is still in spec. 400 miles later everything is still seeming good

however I was curious if someone would like to see a data log and give me feedback and if its optional to adjust the tables could help me in doing so

thank you

Dru670 · 01-05-2017, 02:08 PM

So...how's performance with Grams throttle body? any difference in mpg, butt hp/tq?

86Speedy · 01-05-2017, 04:16 PM

butt dyno def increase, mpg went down a little of course for more air, no codes, and i havent had the chance to get it tuned in perfically but from what i have data logged MAF knocks lft and what not all within spec

timmydatooth · 04-17-2017, 10:38 PM

Is the grams throttle body hard to install? Any install videos for it out there?

D_Thissen · 04-18-2017, 09:33 AM

No offense, but the 'butt dyno' can lie. You spend X amount of dollars so you feel that there has to be some sort of gain. Not saying this is the case, but the only way to be sure is dyno the car on the same day, before and after you change the TB.

Shady195 · 04-18-2017, 09:49 AM

What a waste of money.

nikitopo · 04-20-2017, 08:42 AM

I'll install a similar throttle body next week. I'll post results afterwards. Of what I've read, there is definitely a difference and it pulls stronger even in 6th gear at 2000 rpm.

Somerandom18 · 04-20-2017, 09:30 AM

Even when NA? Interesting.

Sent from my Pixel XL using Tapatalk

nikitopo · 04-21-2017, 04:57 AM

Quote:

Originally Posted by Somerandom18

Even when NA? Interesting.

Here there are only 3-4 people that changed it. Most of the remarks I've read are from Japanese reviews.

11-20-2016, 08:35 PM	#1
86Speedy Member Join Date: Jan 2016 Drives: 2013 scion frs Location: Nevada / Arizona Posts: 24 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	OFT and Grams throttle body so was curious, has anyone made a tune with this yet? or can?

11-21-2016, 12:27 PM	#4
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,629 Times in 1,112 Posts Mentioned: 155 Post(s) Tagged: 1 Thread(s)	You could adjust the throttle maps so it's not as reactive as it would be. __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

11-28-2016, 09:45 PM	#5
86Speedy Member Join Date: Jan 2016 Drives: 2013 scion frs Location: Nevada / Arizona Posts: 24 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	i got the throttle body there is a difference in throttle response and it seems like it diffidently has taken in more air and based on the AFR tables it looks like everything is still in spec. 400 miles later everything is still seeming good however I was curious if someone would like to see a data log and give me feedback and if its optional to adjust the tables could help me in doing so thank you

04-18-2017, 09:33 AM	#10
D_Thissen Senior Member Join Date: Jan 2014 Drives: '13 Argento FR-S (Sold) Location: Ontario Posts: 2,126 Thanks: 3,209 Thanked 1,439 Times in 855 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	No offense, but the 'butt dyno' can lie. You spend X amount of dollars so you feel that there has to be some sort of gain. Not saying this is the case, but the only way to be sure is dyno the car on the same day, before and after you change the TB. __________________ My FR-S Build IG: dthissen

04-18-2017, 09:49 AM	#11
Shady195 Senior Member Join Date: Jun 2014 Drives: '13 10 Series FRS #1203 Location: Albany, NY Posts: 850 Thanks: 7 Thanked 385 Times in 220 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	What a waste of money. __________________ My build thread!

11-20-2016, 09:23 PM	#2
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,998 Thanks: 1,035 Thanked 4,987 Times in 2,981 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	I dont think you would need to change anything. The throttle body is downstream of maf sensor, if it actually flows better maf will detect extra air flow and ecu will adjust fueling based on more flow. it might change the throttle feel as for same percent open throttle would flow more air but ecu\maf will sort out fueling, it just may make the throttle fell a little different

11-20-2016, 09:58 PM	#3
86Speedy Member Join Date: Jan 2016 Drives: 2013 scion frs Location: Nevada / Arizona Posts: 24 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	okay cool! ill update as i get more info then!

01-05-2017, 02:08 PM	#7
Dru670 Senior Member Join Date: Oct 2015 Drives: 2016 Scion FR-S Location: Las Vegas Posts: 155 Thanks: 11 Thanked 8 Times in 8 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	So...how's performance with Grams throttle body? any difference in mpg, butt hp/tq?

01-05-2017, 04:16 PM	#8
86Speedy Member Join Date: Jan 2016 Drives: 2013 scion frs Location: Nevada / Arizona Posts: 24 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	butt dyno def increase, mpg went down a little of course for more air, no codes, and i havent had the chance to get it tuned in perfically but from what i have data logged MAF knocks lft and what not all within spec

04-17-2017, 10:38 PM	#9
timmydatooth Senior Member Join Date: Jun 2015 Drives: Scion Frs Location: Florida Posts: 342 Thanks: 74 Thanked 32 Times in 27 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Is the grams throttle body hard to install? Any install videos for it out there?

04-20-2017, 08:42 AM	#12
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,416 Thanked 1,944 Times in 1,261 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	I'll install a similar throttle body next week. I'll post results afterwards. Of what I've read, there is definitely a difference and it pulls stronger even in 6th gear at 2000 rpm. Last edited by nikitopo; 04-20-2017 at 08:55 AM.

04-20-2017, 09:30 AM	#13
Somerandom18 Senior Member Join Date: Sep 2016 Drives: 2017 manual BRZ Location: USA Posts: 467 Thanks: 322 Thanked 178 Times in 111 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Even when NA? Interesting. Sent from my Pixel XL using Tapatalk

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