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Old 07-07-2002, 05:29 PM   #1
supermarkus
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Member Sales Rating: (13)
 
Member#: 6971
Join Date: May 2001
Location: Edmonds, Washington, USA
Vehicle:
2008 WRX STi
SSM

Exclamation Short shifter comparison: Kartboy vs. BPM

After 12k miles on my BPM short shifter, source through Adam at Z1, I decided to switch things up a bit and try a Kartboy. For those of you that don't know, my setup includes Kartboy shifter bushings, the STi group N tranny mount and engine mounts, and a Momo Race Airleather knob.

here are some side by side shots.

BPM billet shifter vs stock

All three


Note the scratches on the BPM, they are from the "mystery screws" that are on the ring around the lower shift boot. I rotated my ring 180 degrees to keep the shifter linkage from rattling against the ring, but what I didn't notice was that the shifter STILL managed to have clearance issues with those screws that seem to serve no purpose.
Note the screw on the upper left corner of the ring.


Now the good stuff.
BPM
Pros:
-Very good reduction in throw, ~40%
-Very light and strong
-Aluminum construction allows Momo set screws to bite in, making for a very solid connection. (Loctite helps too).

Cons:
-More pronounced fit issues: had to rotate plate, "mystery screws" still contacted the shifter in second gear.
-More effort needed to shift.

Kartboy
Pros:
-Say it with me "GRAPE LOLLIPOPS!!!!"
-Very strong construction
-OEM style threads, work well with stock/Prodrive/Kartboy knobs
-smoother shifting with less effort
-~30% reduction in throw

Cons:
-Very slight fit issue, so I left my plate rotated.
-Does not work well with set screws
-Longer throw than BPM

Verdict:
I'm going to stick with the Kartboy shifter because it seems to shift more smoothly than the BPM. Also, the ball on the BPM was showing signs of wear despite being well lubricated with lithium grease. Despite longer throw, the Kartboy shifts easier. Probably due to an increase in mechanical advantage over the BPM. The choice is difficult and I can safely say that either shifter will feel great: both are way better than the stock. I figure I can put up with ~3/8" more throw in every gear if it's easier to get into gear. Also, Kartboy products cure athletes foot.
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Old 07-09-2002, 01:33 AM   #2
supermarkus
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Join Date: May 2001
Location: Edmonds, Washington, USA
Vehicle:
2008 WRX STi
SSM

Default Tom,

The shifter is on it's way. FedEx ground, I'll see if I can get you a tracking number tomorrow. I was absolutely swamped after I sent it.
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Old 07-09-2002, 02:19 PM   #3
Rass
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Join Date: Jun 2002
Location: Gatineau, Quebec
Vehicle:
2002 wrx
perl blue

Question

I've read lots of GOOD things about Kartboy's short shifter.

I'm hesitating at buying one. I'm 6'2" and reaching lower than my knee to shift concerns me. I've never tried one of these but from what I read it's the way to go, suppose to change the entire feel of the car

Is that true ?

Is is really that much of an improvement ?
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Old 07-10-2002, 11:36 AM   #4
supermarkus
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Join Date: May 2001
Location: Edmonds, Washington, USA
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2008 WRX STi
SSM

Default

Do fish swim in water?

Last edited by Opie; 07-11-2002 at 12:43 AM.
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Old 07-10-2002, 01:00 PM   #5
Rass
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Location: Gatineau, Quebec
Vehicle:
2002 wrx
perl blue

Talking interesting response

I gather I should be lighting up after I've test driven one of these
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Old 07-10-2002, 11:53 PM   #6
supermarkus
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Join Date: May 2001
Location: Edmonds, Washington, USA
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2008 WRX STi
SSM

Default

Consider what I've reported in my review. Roughly a 30-40% reduction in throw with either short shifter is a significant change in feel. Stock felt like rowing through oatmeal to me, now I feel much more connected to the car. They wouldn't sell like hotcakes if they didn't do much or people thought they weren't worth the extra clams.
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Old 07-12-2002, 12:48 PM   #7
android
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Location: st cloud
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2002 impreza wrx
midnight black pearl

Default

i love my kartboy. though i used the grind-a-plate method of fitment. i still get some contact in first, so i will grind some more. much easier to shift from first to second for me. and so far i have had zero missed shifts. i have yet to install the bushings, so i expect things could improve if that is at all possible. kartboy for president!
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Old 07-16-2002, 02:10 PM   #8
aidrock
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Join Date: Jul 2002
Chapter/Region: Tri-State
Location: Newtown, PA
Vehicle:
2002 WRX Sedan WRB
02 Triumph Sprint RS

Question short throw

i was curious about the short throw shifters. where can you order them from? and what kind of prices do they run? are there any other parts that i would need to purchase and how easy are they to install personally?
thanks
aidrock
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Old 07-22-2002, 11:49 AM   #9
PGH'02RS
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Location: Pittsburgh
Vehicle:
2011 E92 M3
Interlagos Blue

Default

www.kartboy.com i belive the shifter is $100, with bushings aroun $125, and add shift knob for $155. great service and great mod. Plus, the shifter is easy as hell to install. the bushings....well now, lets just say thatwas a "fun" install....but I'd highly recommend getting the Kartboy ss.....best $100 I've evry spent on my car
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