DaveGS4

iTrader: (2)

Dropping another reminder. I don't want to close this thread or boot people from it.

loophole35

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.

Sheddy

I thought the same. These were my best dyno results so far with the TTI re-flash tune. Stage 2 was done with a K&N drop in filter, HPS intake tube and SPOWER catted down-pipe. We didn't see much peak WHP , but definitely gained under the curve throughout the power band.

gbgary

maybe that dyno wasn't accurate. good for showing before and after mod differential results but not for actual final numbers?

Nuke

Sheddy

Could be a possibility.

We can start a "go fund me" page for dyno testing.
The dyno is probably worn out and loose from all the supercar testing in Dubai. j/k!

loophole35

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.

daniellina

What do you mean by dyno mode? trac off and sport mode?

DaveGS4

iTrader: (2)

Nuke, what's the octane rating on the fuel you get? And assume it's 'pure' as in no ethanol?

loophole35

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)

Sheddy

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. It needs to register front wheel motion or something.

loophole35

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.

Sheddy

Oh ok, yea i haven't experienced any difference in boost readings from those modes. I mostly do my videos on normal mode as well. This was Stage 2+

loophole35

Sheddy

The 2nd Gen IS350's are quick. I am definitely making more power out the hole, but that V6 would catch up. That's why we need that limitation issue fixed, i'll be happy knowing that i can beat them.