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Old 02-15-2019, 09:07 PM   #1
FLTFOUR
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Default Improving Clutch Feel in 2018 WRX

I find the clutch to be awfully vague. Either, I'm challenged or the clutch is very hard to operate smoothly on a consistent basis.

Is there anyway to increase clutch feel without making it a leg workout? Are there other clutch helper springs out there that offer more feel than the stock one?
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Old 02-15-2019, 09:32 PM   #2
oichan
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It may not be the clutch but the throttle input.

The throttle on the car (even with AP) is not the most consistent on the WRX which throws off your rev match during engagement. Something to think about.
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Old 02-15-2019, 10:14 PM   #3
humpthebobcat
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I’ve found using my calf muscle instead of whole leg helps
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Old 02-16-2019, 10:55 AM   #4
FLTFOUR
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Quote:
Originally Posted by oichan View Post
It may not be the clutch but the throttle input.

The throttle on the car (even with AP) is not the most consistent on the WRX which throws off your rev match during engagement. Something to think about.
You may be onto something here. I did notice that also...giving the gas pedal a millimeter of pressure results in almost 20% throttle. Its very irritating... I love my car inside and out (look back at it every time haha) however sometimes i hate driving it...and its my daily.

How does the STI shifter, clutch, and throttle mapping compare to the FA20 WRXs?
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Old 02-16-2019, 11:07 AM   #5
curiousfish
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compared to WRX's of the past, the newer ones (17+) already have a lighter clutch pedal. Aside from the STi, all Subaru's have pretty vague clutch pedals. If youre used to driving manual from Toyota, Honda, BMW, Mazda, then Subaru's will feel weird.
The shifter in the STi is better, but not Honda/BMW good. More linear throttle mapping as well.
Another thing to note, on the factory throttle map, the gauge read out may read out something like "40%", but usually that results in 100% throttle plate opening. According to manufacturers, American's love that instant "surge" when giving very little throttle travel/input.
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Old 02-16-2019, 07:05 PM   #6
oichan
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Quote:
Originally Posted by FLTFOUR View Post
You may be onto something here. I did notice that also...giving the gas pedal a millimeter of pressure results in almost 20% throttle. Its very irritating... I love my car inside and out (look back at it every time haha) however sometimes i hate driving it...and its my daily.

How does the STI shifter, clutch, and throttle mapping compare to the FA20 WRXs?
If you haven't already, I'd try the Cobb Stage1 (I run Stage1+ on my 19 WRX). It makes the initial throttle input a lot more progressive than stock and rids the flat torque around 5k, also rev hang. But even so, the response is a tad delayed so unless you're wearing the same shoes every day, you might have a few rough shifts early on in the drive.

My STI is a 2016, shifter feels great out of the box (mine has the factory short shifter), clutch is a tad heavier than the WRX, and throttle is instantaneous. I run Stage1+ on my STI as well and love both cars.
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Old 02-17-2019, 11:55 AM   #7
FLTFOUR
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Quote:
Originally Posted by oichan View Post
If you haven't already, I'd try the Cobb Stage1 (I run Stage1+ on my 19 WRX). It makes the initial throttle input a lot more progressive than stock and rids the flat torque around 5k, also rev hang. But even so, the response is a tad delayed so unless you're wearing the same shoes every day, you might have a few rough shifts early on in the drive.

My STI is a 2016, shifter feels great out of the box (mine has the factory short shifter), clutch is a tad heavier than the WRX, and throttle is instantaneous. I run Stage1+ on my STI as well and love both cars.
Nice! You get to have the best of both worlds with the WRX and STI! Congrats!
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Old 02-17-2019, 12:30 PM   #8
oichan
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Thanks FLTFOUR. Yeah, I'm usually not car brand oriented, but Subaru quickly changed that with their current WRX/STI's. Hell I don't usually even buy sedans (I'm a hatch guy) yet I own two..LOL
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Old 02-18-2019, 09:26 AM   #9
cerbomark
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For me, Cobb stage 1 (91) made a much smoother more controllable feel of throttle/clutch.
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Old 02-18-2019, 07:47 PM   #10
FLTFOUR
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Quote:
Originally Posted by cerbomark View Post
For me, Cobb stage 1 (91) made a much smoother more controllable feel of throttle/clutch.
Looks like I'm going to have to cave in and get a Cobb Stage 1 tune.

I'm just worried in case of need for warranty work. I know you can un-marry the AP from the car but the dealer will still know from what i hear?
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Old 02-18-2019, 07:51 PM   #11
cerbomark
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calculated risk. the stage 1 (91) isn t going to damage the car. If it get s damage they may still fix it, I guess odds in my favor , LOL.
I drive the car reasonably and don t abuse it at all.
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Old 02-19-2019, 03:24 PM   #12
mishapopa
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Shoulda kept the CVT! Nah, just kidding. Stock tune doesn't drop revs right away so either wait to release the clutch at every shift or get a tune. I drive my stage 2 WRX smooth as butter
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Old 02-20-2019, 07:46 AM   #13
SirBrass
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Quote:
Originally Posted by oichan View Post
It may not be the clutch but the throttle input.

The throttle on the car (even with AP) is not the most consistent on the WRX which throws off your rev match during engagement. Something to think about.
That's not something I've found. With the AP, I can intuitively blip throttle and 9 times out of 10 I seamlessly downshift. That 1 time in 10 it's just a minor surge.

When I test drove a GTI when coming from the BRZ (one of the best factory clutches and transmissions in a Subaru ever), I found I couldn't find the engagement point to save my life, and ended up roasting the clutch at low vehicle speeds trying to get the car moving. Zero sense of "here's the bite point" that I got even in other 2WD vehicles and definitely get in AWD vehicles.

Issues with the WRX transmission are that stock rubbery feeling shifter and a high engagement point. What is not a problem in my experience is lack of vagueness with the engagement point.
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Old 02-20-2019, 10:24 AM   #14
oichan
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Try driving a STI with AP. It is super consistent and response immediate. That is how it should be, but since my WRX is a daily driver some slack given. I still love and enjoy my WRX as I just adapt to the car when I switch cars.

BRZ was easy to drive.
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