Forced induction's affect on the nature of the 86

[nikitopo]

Originally Posted by CSG Mike

How will FI make me rev less, or use the wrong gear?

That sounds like a driver error, not a FI problem.

The FI car is more forgiving. If you don't rev the NA car, then you are slow. It is not the same with FI. And I was referring mainly on street driving, not on track were the environment is more controlled and known. In the end it is always a driver error, but it depends also the car. Some cars will push you to be a bit better driver, some others to be more "lazy" driver ...

[weederr33]

Originally Posted by nikitopo

The FI car is more forgiving. If you don't rev the NA car, then you are slow. It is not the same with FI. And I was referring mainly on street driving, not on track were the environment is more controlled and known. In the end it is always a driver error, but it depends also the car. Some cars will push you to be a bit better driver, some others to be more "lazy" driver ...

Not that I'm an expert, but I find it hard to believe a FI car would be more forgiving. Not revving out the engine is on the driver. I also see a lot of fail videos and stories of those on the street.

[BigFatFlip]

Originally Posted by mrg666

If one wants to keep the nature of 86, I think a centrifugal/Rotrex supercharger is the best method to go FI.

Would definitely agree. I had the Edelbrock SC and have ridden in other FI cars (Vortec, Jackson, AVO and PTuning). Almost always, the SC'd car kept the overall character of the car, keeping the power delivery more linear, while the turbo'd cars just never felt "right".


The Synergy V8 on the other hand... well, that's a whole nother ball game lol

Originally Posted by weederr33

Having been in both places I felt with FI I had a self imposed restriction on how hard I pushed my car. Out of fear of going pop. As NA I love wringing it out for power. Both are fun though.

I didn't notice this until I parted out my car and was back to NA. I found that I was way more cautious with the car when I was FI and, as much fun the extra power was, I had forgotten how rewarding it was to just not give a F and wring the cars neck lol #stockisbest

[mrg666]

Originally Posted by bmxr

The platform definitely needs more power. That said, and just to offer a slightly different perspective, I have bought TWO WRX's (a 2015 and a 2018), and I'm glad Subaru did not put that engine into the BRZ. While more power would be great, there are so many issues with the tuning that engine that I have no doubt it actually would make the car worse. I do hope I find a centrifugal blower and pro tune in my future...

You don't need to tune, just buy JRSC and keep JR CARB tune. It is excellent, silky smooth and efficient.

[mrg666]

Originally Posted by nikitopo

The FI car is more forgiving. If you don't rev the NA car, then you are slow. It is not the same with FI. And I was referring mainly on street driving, not on track were the environment is more controlled and known. In the end it is always a driver error, but it depends also the car. Some cars will push you to be a bit better driver, some others to be more "lazy" driver ...

FI forgiving? , yea, try to exit that turn with a little more than necessary throttle (and your famous skinny tires). You will be going backwards.

[Irace86.2.0]

Originally Posted by CSG Mike

How will FI make me rev less, or use the wrong gear?

That sounds like a driver error, not a FI problem.

It is not driver error. It is time in the saddle that changes. With a high powered vehicle, the time on the gas and moving through the rpms is shortened, in some cases, dramatically. You can be out of road or limited by the speed limit before you even had a chance to get into it. The trade off is having more acceleration, but acceleration isn’t everything, especially on the street.

[CSG Mike]

Originally Posted by bmxr

The platform definitely needs more power. That said, and just to offer a slightly different perspective, I have bought TWO WRX's (a 2015 and a 2018), and I'm glad Subaru did not put that engine into the BRZ. While more power would be great, there are so many issues with the tuning that engine that I have no doubt it actually would make the car worse. I do hope I find a centrifugal blower and pro tune in my future...

What issues are you having with tuning the FA20DIT?

I've had no issues with my WRX...

[CSG Mike]

Originally Posted by nikitopo

The FI car is more forgiving. If you don't rev the NA car, then you are slow. It is not the same with FI. And I was referring mainly on street driving, not on track were the environment is more controlled and known. In the end it is always a driver error, but it depends also the car. Some cars will push you to be a bit better driver, some others to be more "lazy" driver ...

You said it yourself.

[CSG Mike]

Originally Posted by Irace86.2.0

It is not driver error. It is time in the saddle that changes. With a high powered vehicle, the time on the gas and moving through the rpms is shortened, in some cases, dramatically. You can be out of road or limited by the speed limit before you even had a chance to get into it. The trade off is having more acceleration, but acceleration isn’t everything, especially on the street.

I don't think I'd call a FI twin high powered, unless it had the power to ratio of something in say.... GT3/GTR/Z06 territory.

a 300hp twin isn't exactly a fast car by modern standards. Quick? Sure, but not so fast that you're spinning tires at speed limits.

[Whoodoo]

Originally Posted by mrg666

FI forgiving? , yea, try to exit that turn with a little more than necessary throttle (and your famous skinny tires). You will be going backwards.

This is exactly why I keep the traction control on

[mrg666]

Originally Posted by Whoodoo

This is exactly why I keep the traction control on

Traction control is calibrated for the stock power, I guess. I noticed that it wasn't working as effective with increased power. After I have installed wider (245/40-17) tires with more grip, I was able to depend on traction control again. The best is always controlling your throttle and speed at corners though; traction control doesn't save every situation.

[Irace86.2.0]

Originally Posted by CSG Mike

I don't think I'd call a FI twin high powered, unless it had the power to ratio of something in say.... GT3/GTR/Z06 territory.

a 300hp twin isn't exactly a fast car by modern standards. Quick? Sure, but not so fast that you're spinning tires at speed limits.

Sorry, replace high with higher, so what I said can make sense. A higher hp or higher power to weight ratio car will always have less time wringing out the rpms, whether it is 0-60 or just banging through a set of gears. It is like riding a roller coaster versus doing a drop zone—variable and longer, but less intense versus fast and intense but quickly over. This is kinda like the Cayman NA vs turbo argument too; character and thrills versus just more power. On the street, some might prefer an 86 that is NA for those reasons.

[revaholic]

I'm very happy with my Sprintex kit so far. I'm stock everywhere else so the car is definitely faster but not massively faster. Just a lot more midrange. I don't think it changes the character of the car too much, it just makes it not frustrating anymore and actually slightly intimidating when you push it, but that's how I wanted it. In my opinion I've just rounded out the car whereas before the power was the weak point.

[ayau]

Originally Posted by bmxr

The platform definitely needs more power. That said, and just to offer a slightly different perspective, I have bought TWO WRX's (a 2015 and a 2018), and I'm glad Subaru did not put that engine into the BRZ. While more power would be great, there are so many issues with the tuning that engine that I have no doubt it actually would make the car worse. I do hope I find a centrifugal blower and pro tune in my future...

Originally Posted by CSG Mike

What issues are you having with tuning the FA20DIT?

I've had no issues with my WRX...

I would also like to know what issues. My WRX with E50 flex and full bolt ons is a completely different car. Who was your tuner?