AVCS tuning - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Turdinator · 04-27-2014, 11:37 PM

Hello,
I don't plan on fiddling with the CAM maps anytime soon but I was thinking about it how it might all work since I bought my OFT. If you didn't know what you were doing could you make the valves hit the pistons etc?

86drift · 04-28-2014, 03:33 AM

Quote:

Originally Posted by Turdinator

Hello,
I don't plan on fiddling with the CAM maps anytime soon but I was thinking about it how it might all work since I bought my OFT. If you didn't know what you were doing could you make the valves hit the pistons etc?

Doubt it. I've maxed out the values and haven't made a mess of my engine.

Kodename47 · 04-28-2014, 04:57 AM

Cam timing changes does not equal changes in valve lift. Look at an OEM ROM and see the changes that occur in stock form.

Grip Ronin · 04-28-2014, 10:08 AM

ive edited some vvt changes but it just ignores imputs that are adjusted higher then what shiv already has there. when datalogged the intake cam still dips in the middle and phases off at the end and the exhaust wont stay more then 26 after 5k. idk whats with it

Kodename47 · 04-28-2014, 11:58 AM

Quote:

Originally Posted by Grip Ronin

ive edited some vvt changes but it just ignores imputs that are adjusted higher then what shiv already has there. when datalogged the intake cam still dips in the middle and phases off at the end and the exhaust wont stay more then 26 after 5k. idk whats with it

How many cam tables are you adjusting and which ones are they?

Grip Ronin · 04-29-2014, 12:04 AM

Quote:

Originally Posted by Kodename47

How many cam tables are you adjusting and which ones are they?

ive only adjusted the (normal) intake and exhaust tables which the car seems to follow much closer then the other tables

Kodename47 · 04-29-2014, 03:28 AM

May well be due to oil pressure. I'm not sure why you're keeping the exhaust that advanced that high in the range?

Are you adjusting both hi and low det cam maps (intake and exhaust) or the basemaps?

Grip Ronin · 05-01-2014, 03:48 PM

Quote:

Originally Posted by Kodename47

May well be due to oil pressure. I'm not sure why you're keeping the exhaust that advanced that high in the range?

Are you adjusting both hi and low det cam maps (intake and exhaust) or the basemaps?

hi and lows? no jus the normal map. and the oft tune comes at 25 on the exhaust side all the way to redlineon stg 2

Kodename47 · 05-01-2014, 06:42 PM

That'd be why then. I'm not sure when the car uses the base map but generally you should be on the low det cam maps, although I've been told it uses the high det map for a short period.

KoolBRZ · 11-24-2015, 02:31 PM

Quote:

Originally Posted by Kodename47

May well be due to oil pressure. I'm not sure why you're keeping the exhaust that advanced that high in the range?

Are you adjusting both hi and low det cam maps (intake and exhaust) or the basemaps?

In OFT they are called Safe and Normal maps. I've found that the Safe map is used most often. Here is some of my work. I left the Base tables as they are. The normal tables are the way Shiv made them for stage 2 OTS tunes.

04-28-2014, 04:57 AM	#3
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,632 Times in 1,113 Posts Mentioned: 156 Post(s) Tagged: 1 Thread(s)	Cam timing changes does not equal changes in valve lift. Look at an OEM ROM and see the changes that occur in stock form. __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

04-28-2014, 10:08 AM	#4
Grip Ronin The Mechanic Join Date: Mar 2012 Drives: Civic Turbo,FR-S Location: NJ Posts: 928 Thanks: 130 Thanked 171 Times in 119 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	ive edited some vvt changes but it just ignores imputs that are adjusted higher then what shiv already has there. when datalogged the intake cam still dips in the middle and phases off at the end and the exhaust wont stay more then 26 after 5k. idk whats with it __________________ IG-Joey_Soul Progress Thread Ported billet 20G

04-29-2014, 03:28 AM	#7
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,632 Times in 1,113 Posts Mentioned: 156 Post(s) Tagged: 1 Thread(s)	May well be due to oil pressure. I'm not sure why you're keeping the exhaust that advanced that high in the range? Are you adjusting both hi and low det cam maps (intake and exhaust) or the basemaps? __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

05-01-2014, 06:42 PM	#9
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,632 Times in 1,113 Posts Mentioned: 156 Post(s) Tagged: 1 Thread(s)	That'd be why then. I'm not sure when the car uses the base map but generally you should be on the low det cam maps, although I've been told it uses the high det map for a short period. __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

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