Official FA20CLUB Turbo Kit FAQ Discussion

[Ny Brz]

Good info, can't wait to see the section on fuel mods.

[FA20Club.com]

Originally Posted by troek

does your new tuner kit that sells for 4199.99 still need to have a fitting welded into the oil pan?

The tuner kit is actually less we just didnt set the presets yet on it. But it will come with no base map of fueling from us. This will be for those interested in doing more on their own end.

[Victor Draken]

Can you please give more information on spooling time of all the kits?

[FA20Club.com]

W provided as much as we could to this point. The t3t4 all use the same turbine wheel so spool doesnt vary much just power out put.

[Ryan P]

So what would it take in order to organize a 'dyno day' trip like your Houston trip to DC/MD/VA area. A shop w/dyno, obviously, 10 - 15 participants? Perhaps Element would be interested in hosting? Just feeling the idea out, I'm partial to in person tuning over e-tunes and South Florida is a hell of a drive from here haha.

[Andy@FA20Club]

Originally Posted by Ryan P

So what would it take in order to organize a 'dyno day' trip like your Houston trip to DC/MD/VA area. A shop w/dyno, obviously, 10 - 15 participants? Perhaps Element would be interested in hosting? Just feeling the idea out, I'm partial to in person tuning over e-tunes and South Florida is a hell of a drive from here haha.

Pm sent

[DeBiase]

If you aren't going for top hp would that make the 57 trim better for either transmission being that it produces a bit more torque, such as a sub 400hp application? And I see that the boost response is only a few hundred RPM in difference but does the turbo size affect the rate at which RPM's rise? For example would a 60 trim get to 3500 RPM in the same amount of time that it would take the 50 trim? Thank you.

[jamesm]

Originally Posted by DeBiase

If you aren't going for top hp would that make the 57 trim better for either transmission being that it produces a bit more torque, such as a sub 400hp application? And I see that the boost response is only a few hundred RPM in difference but does the turbo size affect the rate at which RPM's rise? For example would a 60 trim get to 3500 RPM in the same amount of time that it would take the 50 trim? Thank you.

the difference between various size (and design) turbos can't be quantified in such a straight forward way. it's far more subjective and it's all about feel. also tuning plays a huge part in how a turbo feels. suffice to say a 60-trim will feel less responsive than a 60-trim. whether or not that matters or if it is worth the trade-off is up to you.

[DeBiase]

Originally Posted by jamesm

the difference between various size (and design) turbos can't be quantified in such a straight forward way. it's far more subjective and it's all about feel. also tuning plays a huge part in how a turbo feels. suffice to say a 60-trim will feel less responsive than a 60-trim. whether or not that matters or if it is worth the trade-off is up to you.

I meant all other variants held the same and it's a general question I guess I mean it more specifically does the compressor size affect how quickly the engine speed rises, everything else held constant, and the same if the only variable is the turbine size, would the RPM's rise at a different speed (sub boost as I know post boost it will vary). I am asking BC if boost response take a second longer in one turbo than another (or at any rate not consistent with the difference in engine speed variance ie 3600 response rpm vs 3800 response rpm) then wouldn't that render RPM speed as the benchmark for boost response as not-the-most precise way? I know tuning can make a world if difference. And I am just curious as I would personally go with the GTX30 series, I just like learning these things. And you meant a 60 trim is less responsive than a 50 trim correct? You said 60 twice.

[DeBiase]

I wish I had the resources to test my questions myself but I do not. Any tuner shops hiring

[DeBiase]

Not the most precise way of measuring the speed of boost response. Of course RPM's would still be used for so many other tuning reasons. I'm just relating it to measuring response times of the engine/performance.

[jamesm]

Originally Posted by DeBiase

I meant all other variants held the same and it's a general question I guess I mean it more specifically does the compressor size affect how quickly the engine speed rises, everything else held constant, and the same if the only variable is the turbine size, would the RPM's rise at a different speed (sub boost as I know post boost it will vary). I am asking BC if boost response take a second longer in one turbo than another (or at any rate not consistent with the difference in engine speed variance ie 3600 response rpm vs 3800 response rpm) then wouldn't that render RPM speed as the benchmark for boost response as not-the-most precise way? I know tuning can make a world if difference. And I am just curious as I would personally go with the GTX30 series, I just like learning these things. And you meant a 60 trim is less responsive than a 50 trim correct? You said 60 twice.

yes i did mean that, sorry for the confusion. basically, how fast engine rpms rise depends on how fast the car is accelerating, so if we're talking about off-boost then the only thing turbo-related that would effect that would be exhaust backpressure. so what we really want to know is does the size of a turbo effect off boost power, and if so how. i'm not sure of the answer to that.

[DeBiase]

Originally Posted by jamesm

yes i did mean that, sorry for the confusion. basically, how fast engine rpms rise depends on how fast the car is accelerating, so if we're talking about off-boost then the only thing turbo-related that would effect that would be exhaust backpressure. so what we really want to know is does the size of a turbo effect off boost power, and if so how. i'm not sure of the answer to that.

It was nice conversing with someone who can understand what I was trying to say. And I'm guessing that a turbo turbine with less back pressure would equal better power which would equal faster RPM climb. But yes your questions are spot on.

[FA20Club.com]

Originally Posted by DeBiase

If you aren't going for top hp would that make the 57 trim better for either transmission being that it produces a bit more torque, such as a sub 400hp application? And I see that the boost response is only a few hundred RPM in difference but does the turbo size affect the rate at which RPM's rise? For example would a 60 trim get to 3500 RPM in the same amount of time that it would take the 50 trim? Thank you.

The 50 trim is going to be the largest variance in spool time of all the t3/t4 options. What you will see is minimal difference at lower boost levels. Once you actually start turning the boost up to about 10-12+ psi you start to see the spool time window widen vs what you would experience at lower moderate boost levels.