Need OpenFlash Tune for TRD catback and Grimmspeed intake and crank pulley

[yip]

I personally feel purchasing a intake and exhaust for anything but looks is a waste of money and any gains you think you feel are just because of the added noise these parts create. I also didn't fell like the stage 1 OFT tune on 91 made any real noticeable difference and I would prefer to just keep the stock tune.

Switching to E85 with no other mods made the OFT purchase worth the money. Night and day difference in power can be felt throughout the whole rev range. If it wasn't for the E85 tune I would have just sold the OFT.

[Mikepage]

We have very differents opinions here concerning the OFT now...

[theadmiral976]

Originally Posted by Mikepage

We have very differents opinions here concerning the OFT now...

Just remember that all of our opinions are just that - opinions. People's perceptions are based on their own experiences. For example, up until 2 years ago, I had never owned a vehicle as powerful - lol - as the BRZ. I was very impressed by the Stage 1 93 octane map and further impressed by the Stage 2 93 map with OFH. I can't speak to the E85 maps as of yet, but they do clearly improve upon the 91 and 93 maps, obviously due to them harnessing the magical power of corn. Other people who have made major modifications to their cars in the past, releasing 20, 50, or even 100 additional whp/wtq will likely say that the OFT maps are not all that remarkable, simply because their experience-based perceptions are different.

What matters is that the facts are clear. The OFT Stage 1 91/93 map alone improves whp at the top end of the rev range and greatly improves torque within the torque dip (~2500-4000 rpm). The Stage 2 91/93 map improves upon the Stage 1 as a result of harnessing the benefits of a more free-flowing exhaust header. All of the OFT maps greatly improve driveability below 4000 rpm, which is where most people spend most of their time. Whether or not you will perceive these improvements as worthwhile is really a personal matter. For the money, the OFT/OFH setup remains the best bang for most people's buck short of forced induction.

One way I like to judge the value of vehicle modifications, and how I spend my money, time, and effort, is to quantify the improvements I propose making relative to what I have. While it's hard to quantify "driveability," it is easy to look at the improvements in whp and wtq. Depending on the rpm, people running OFT/OFH are looking at upwards of 10-15% improvement in these measures of car performance. To me, that is significant; to others, maybe not. A good example I have from my experience is when I was modifying my motorcycle, which makes a lowly 23 whp from the factory. People asked me why I spent several hundred dollars on mapping hardware and software which only promised ~5 whp gains. Well, 5/23=0.217 - I was spending about 600 dollars for a low-effort gain of nearly 22% whp! That, to me, was incredible, especially considering other lower impact modifications on the market for other vehicles of all shapes and sizes. Furthermore, going from 23 to 28 whp on a 340 pound bike is definitely noticeable. It's all in your perceptions of value - a very personal matter.

[TruRace]

I've posted these on here before but here are a couple dynos

This is OFT e85 Stg2 and k&n drop in filter, Borla axleback



This is e85, Grim intake, Tomei overpipe & UEL header, Berk front pipe, lightweight crank pulley, and HKS catback



Keep in mind these are two different dynos. Same tune. Didn't gain a whole lot of power with all those mods and not sure if that gain was more attributed to the header. But take these results with a grain of salt.

[Mikepage]

Maybe will do a dyno before and one after to see the real difference...

[oldgunfan]

I have posted this before I'm surprised nobody noticed, You just have to copy the MAF table in romraider and your good to go. https://docs.google.com/spreadsheets...R3Y/edit#gid=0 It's seconded to the last.

[Mikepage]

Thanks! Very nice sheet