IS200t tune
Joined: Feb 2001
Posts: 31,944
Likes: 2,737
From: North Carolina
Pole Position
Joined: Jan 2018
Posts: 250
Likes: 45
From: Florida
I'm looking more and more at his dyno graph and coming to a conclusion that something is up with the dyno. The boost starts dropping off a bit earlier than usual and the same is noticed with the AFR change over that we all see on other dyno's with the same tune. I think the dyno is graphing about 200-250RPM behind and that could cause the HP equation to incorrectly display the output. Not sure on this but would like to see Nuke's car on a Dynojet.
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
I'm looking more and more at his dyno graph and coming to a conclusion that something is up with the dyno. The boost starts dropping off a bit earlier than usual and the same is noticed with the AFR change over that we all see on other dyno's with the same tune. I think the dyno is graphing about 200-250RPM behind and that could cause the HP equation to incorrectly display the output. Not sure on this but would like to see Nuke's car on a Dynojet.
Pole Position
Joined: Dec 2016
Posts: 336
Likes: 31
From: texas
maybe that dyno wasn't accurate. good for showing before and after mod differential results but not for actual final numbers?
Last edited by gbgary; Jan 29, 2018 at 10:09 AM.
Lead Lap
Joined: Dec 2015
Posts: 527
Likes: 138
From: Dubai
I'm looking more and more at his dyno graph and coming to a conclusion that something is up with the dyno. The boost starts dropping off a bit earlier than usual and the same is noticed with the AFR change over that we all see on other dyno's with the same tune. I think the dyno is graphing about 200-250RPM behind and that could cause the HP equation to incorrectly display the output. Not sure on this but would like to see Nuke's car on a Dynojet.
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
The dyno is probably worn out and loose from all the supercar testing in Dubai. j/k!
Pole Position
Joined: Jan 2018
Posts: 250
Likes: 45
From: Florida
BTW any 16 owners notice if they can in stock tune not reach 15-16PSI unless in sport? My 17 only gets 14PSI max in normal driving mode but 16 PSI in sport. Now if I put the car in dyno mode its a whole different animal.
Pole Position
Joined: Jan 2017
Posts: 211
Likes: 46
From: Florida
Yeah bro not questioning your integrity or anything with that post just throwing out possibility that it's not the most accurate representation. I have no doubt that your car feels really good right now.
BTW any 16 owners notice if they can in stock tune not reach 15-16PSI unless in sport? My 17 only gets 14PSI max in normal driving mode but 16 PSI in sport. Now if I put the car in dyno mode its a whole different animal.
BTW any 16 owners notice if they can in stock tune not reach 15-16PSI unless in sport? My 17 only gets 14PSI max in normal driving mode but 16 PSI in sport. Now if I put the car in dyno mode its a whole different animal.
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Pole Position
Joined: Jan 2018
Posts: 250
Likes: 45
From: Florida
Hold the "trac off" button down for like 5 seconds. It shuts off: TRAC, VSC, PCS and a few other "safety" features. Basically makes it a real car.
Just pressing the "trac off" only disables TRAC partially. There is another way to do it at startup with the brake and emergency brake but I forgot the sequence now. (Used to do this when I would drag race my 2011 IS350)
Just pressing the "trac off" only disables TRAC partially. There is another way to do it at startup with the brake and emergency brake but I forgot the sequence now. (Used to do this when I would drag race my 2011 IS350)
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
Hold the "trac off" button down for like 5 seconds. It shuts off: TRAC, VSC, PCS and a few other "safety" features. Basically makes it a real car.
Just pressing the "trac off" only disables TRAC partially. There is another way to do it at startup with the brake and emergency brake but I forgot the sequence now. (Used to do this when I would drag race my 2011 IS350)
Just pressing the "trac off" only disables TRAC partially. There is another way to do it at startup with the brake and emergency brake but I forgot the sequence now. (Used to do this when I would drag race my 2011 IS350)
Pole Position
Joined: Jan 2018
Posts: 250
Likes: 45
From: Florida
I've never seen a difference in boost reading when in SPORT/ TRAC off mode (Dyno mode). We do get to bounce off the rev limiter in manual mode and i found out on my last dyno session that if in automatic the car won't shift for itself. I guess it needs to register front wheel motion or something.
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
I talking about I only get 14PSI in normal mode but if I switch to SPORT I will get 16PSI. At least that is what my boost gauge on the dash is showing me. I have not tried it in 'dyno mode" and normal. Every time I do it I'm playing around in SPORT. I will try it in NORMAL on the way home from work today.
Pole Position
Joined: Jan 2018
Posts: 250
Likes: 45
From: Florida
BTW: Your 200t looks like it would have beaten my 2GIS350.
Last edited by loophole35; Jan 29, 2018 at 12:34 PM.
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
Last edited by Sheddy; Jan 29, 2018 at 12:47 PM.