08-12-2022, 05:59 PM
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#1
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4runner gas pedal vs gx470, weird I know but read.....
Ok here's the story. My new to me 4runner had the cut gas pedal but I wanted to put on my OBX pedal covers. I purchased a GX470 one because I thought they were the same. They had different part numbers but I figured toyota vs lexus numbers so I bought it.
I put it in yesterday and right off the bat it was about 2" higher so the driving position was a little less comfortable. Here is the kicker, no 4runner drive by wire lag, the kick down required much less travel to engage, response was instant, much much more fun to drive. It was like having a sprint booster installed but much more controlled.
If it was not for the higher position I would have kept it in there. What a difference. The lexus pedal must have different programming than the toyota one.
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'08 4Runner Limited V8 Shadow Mica: Sport hood, bilstein 6112's, 5160's, b12 coils, Gibson cat back, 4runner XSP rims, Michelin X LT AS 275/55-20
'06 4Runner Limited V8 Salsa Red: bilstein 6112, 5160, Wheeler T12's, 4Runner XP wheels, Michelin AT2 275/55/20, Magnaflow Exhaust,, Powerstop brakes, sport hood
RIP.....'08 4Runner Limited V6: white, bilstein 6112s, 5160s, b12 , powerstop brakes, nav, TRD cat back, 4Runner XP rims, Michelin Defender LTX 275/55-20, sport hood
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08-12-2022, 09:39 PM
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#2
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Junior Member
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Join Date: Jan 2021
Location: Los Angeles, CA
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got any pics of the pedal? you may have stumbled on something good here..
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08-12-2022, 09:54 PM
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#3
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Yeah I'm down, did you buy the whole assembly?
Sent from my SM-G981V using Tapatalk
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06 Curry Runner
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08-15-2022, 02:43 PM
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#4
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More info plz
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1998 T4R Limited 4x4- Sold
2005 T4R Limited 4x4 V8
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08-15-2022, 02:46 PM
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#5
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Quote:
Originally Posted by inscarguy
Ok here's the story. My new to me 4runner had the cut gas pedal but I wanted to put on my OBX pedal covers. I purchased a GX470 one because I thought they were the same. They had different part numbers but I figured toyota vs lexus numbers so I bought it.
I put it in yesterday and right off the bat it was about 2" higher so the driving position was a little less comfortable. Here is the kicker, no 4runner drive by wire lag, the kick down required much less travel to engage, response was instant, much much more fun to drive. It was like having a sprint booster installed but much more controlled.
If it was not for the higher position I would have kept it in there. What a difference. The lexus pedal must have different programming than the toyota one.
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Quote:
Originally Posted by NCrunner2012
More info plz
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Agreed, how are you getting on with the Lexus pedal OP?
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2008 2.7 2WD 4 speed (Tacoma-Runner?)
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08-15-2022, 04:03 PM
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#6
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Here are the pics of the gx pedal. I had to take it out due to my leg injury. It changes the height about 2 inches. It sits in the same location but closer to the driver. The 4runner pedal sits pretty level or just behind the brake pedal. I loved driving it with the GX pedal. I put the 4runner one back in and back to the old delay and lack of responsiveness.
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'08 4Runner Limited V8 Shadow Mica: Sport hood, bilstein 6112's, 5160's, b12 coils, Gibson cat back, 4runner XSP rims, Michelin X LT AS 275/55-20
'06 4Runner Limited V8 Salsa Red: bilstein 6112, 5160, Wheeler T12's, 4Runner XP wheels, Michelin AT2 275/55/20, Magnaflow Exhaust,, Powerstop brakes, sport hood
RIP.....'08 4Runner Limited V6: white, bilstein 6112s, 5160s, b12 , powerstop brakes, nav, TRD cat back, 4Runner XP rims, Michelin Defender LTX 275/55-20, sport hood
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08-18-2022, 11:44 AM
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#7
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**UPDATE**
took the 4runner pedal out and replaced the GX electrics on the 4runner pedal. No change. Swapped everything back and put the GX pedal back in and I got everything back like I mentioned in the first post. I don't understand what's with this pedal. I have attached some pics for all of you to see. Maybe " blackworks" can chime in. Maybe he might have an answer.
The 4runner pedal has the OBX cover on it.
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'08 4Runner Limited V8 Shadow Mica: Sport hood, bilstein 6112's, 5160's, b12 coils, Gibson cat back, 4runner XSP rims, Michelin X LT AS 275/55-20
'06 4Runner Limited V8 Salsa Red: bilstein 6112, 5160, Wheeler T12's, 4Runner XP wheels, Michelin AT2 275/55/20, Magnaflow Exhaust,, Powerstop brakes, sport hood
RIP.....'08 4Runner Limited V6: white, bilstein 6112s, 5160s, b12 , powerstop brakes, nav, TRD cat back, 4Runner XP rims, Michelin Defender LTX 275/55-20, sport hood
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08-18-2022, 12:11 PM
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#8
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Quote:
Originally Posted by inscarguy
**UPDATE**
took the 4runner pedal out and replaced the GX electrics on the 4runner pedal. No change. Swapped everything back and put the GX pedal back in and I got everything back like I mentioned in the first post. I don't understand what's with this pedal. I have attached some pics for all of you to see. Maybe " blackworks" can chime in. Maybe he might have an answer.
The 4runner pedal has the OBX cover on it.
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Just thinking out loud...the pedal is just a potentiometer I think. Or a pair of potentiometers, for safety/redundancy. I wonder if the Lexus one is designed to simply deliver more milliivolts to the ECU. Although that wouldn't explain the snappier response. So maybe there is more to it...
Do you have a multimeter? It would be interesting to see the resistance in ohms, and the rate of change, for the pedal at various different positions.
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08-18-2022, 01:41 PM
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#9
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Quote:
Originally Posted by SurferUK
Just thinking out loud...the pedal is just a potentiometer I think. Or a pair of potentiometers, for safety/redundancy. I wonder if the Lexus one is designed to simply deliver more milliivolts to the ECU. Although that wouldn't explain the snappier response. So maybe there is more to it...
Do you have a multimeter? It would be interesting to see the resistance in ohms, and the rate of change, for the pedal at various different positions.
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he swapped the electronics out to the 4runner housing/pedal and it was like his factory pedal. The electronics are the same it would seem.
With that said, it is a potentiometer, but the difference is almost certainly coming from the different pedal configuration which allows your foot to more readily move it through its arc resulting in a slight change in delay.
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08-18-2022, 01:48 PM
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#10
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just went back and looked at the pictures and I am just about 99% certain it has everything to do with the different geometry, and not electronics, as your swap has already proven.
You can do the same thing and swap your 4runner pedal to the lexus assembly and still result in the same performance you had before.
The difference is coming from the position/angel of the lexus pedal vs the 4runner. It's all just in the geometry of arc-angles. With the 4runner pedal you are at a different position along the arc sweep vs where you are with the lexus pedal. The instantaneous position change with the starting placement of the lexus pedal translates to more motion from the same amount of foot displacement with the 4runner pedal. It may not be very apparent with just the 2 pedal sitting side by side, but if you envision where your foot sit, and how your foot sweeps through its own arc are you push down on the pedal you'd see that you have slightly more direct input with the lexus pedal that isn't wasted by downward motion. If that makes any sense at all... lol.
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08-18-2022, 02:04 PM
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#11
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Quote:
Originally Posted by aemravan
just went back and looked at the pictures and I am just about 99% certain it has everything to do with the different geometry, and not electronics, as your swap has already proven.
You can do the same thing and swap your 4runner pedal to the lexus assembly and still result in the same performance you had before.
The difference is coming from the position/angel of the lexus pedal vs the 4runner. It's all just in the geometry of arc-angles. With the 4runner pedal you are at a different position along the arc sweep vs where you are with the lexus pedal. The instantaneous position change with the starting placement of the lexus pedal translates to more motion from the same amount of foot displacement with the 4runner pedal. It may not be very apparent with just the 2 pedal sitting side by side, but if you envision where your foot sit, and how your foot sweeps through its own arc are you push down on the pedal you'd see that you have slightly more direct input with the lexus pedal that isn't wasted by downward motion. If that makes any sense at all... lol.
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I agree, well spotted. I mis-understood the earlier post. That's why I wondered what the rate of change as measured by an ohmmeter would be, for comparable pedal positions.
So it's Lexus drive shafts and Lexus pedals
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08-18-2022, 02:18 PM
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#12
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I have an 06 V8 SE, I drove my friend's recently lifted GX470 last weekend....
HOLY COW!!! Can confirm I need this upgrade!!
It's like a world of difference and the lag almost disappears.
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08-18-2022, 02:25 PM
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#13
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Quote:
Originally Posted by stopthefury
I have an 06 V8 SE, I drove my friend's recently lifted GX470 last weekend....
HOLY COW!!! Can confirm I need this upgrade!!
It's like a world of difference and the lag almost disappears.
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well.. just get you a lexus pedal if you can live with the extra raise that you will need to live with in the 4th gen.
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08-18-2022, 03:01 PM
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#14
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I’m not a computer/electronics professional, but I think the users who say the different response is because of the different geometry of the GX470 pedal are correct.
I don’t see anything that would indicate that the pedals are transmitting different information in any way. Except for the geometry, the pedals look the same to my untrained eyes.
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08-18-2022, 03:25 PM
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#15
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I can see what you're saying. There still has to be something else. With the 4runner pedal, I push down 1/2 inch, nothing, dead. I have to push more to get acceleration, whereas with the GX pedal I push that same 1/2 inch I'm already doing 20mph. I looked at the beginning and end travel and they are the same. The only difference I could see was the shape of the pedal arm.
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'08 4Runner Limited V8 Shadow Mica: Sport hood, bilstein 6112's, 5160's, b12 coils, Gibson cat back, 4runner XSP rims, Michelin X LT AS 275/55-20
'06 4Runner Limited V8 Salsa Red: bilstein 6112, 5160, Wheeler T12's, 4Runner XP wheels, Michelin AT2 275/55/20, Magnaflow Exhaust,, Powerstop brakes, sport hood
RIP.....'08 4Runner Limited V6: white, bilstein 6112s, 5160s, b12 , powerstop brakes, nav, TRD cat back, 4Runner XP rims, Michelin Defender LTX 275/55-20, sport hood
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