CRX-CTR
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- Thread starter
- #1
Hi All
New guy here, but I’ve enjoyed wandering through this forum before and after purchasing a 2024 CTR in May. I wanted to tap into the collective mind before I do a deep dive into a problem with my car.
One reason I bought the CTR was to explore getting back into the HPDE world after a 20+ year gap (signifiant experience in a Honda CRX back in the day), so I attended a Porsche Club HPDE at a road course this weekend.
My CTR had 2,300 miles on it on the first track day, and track prep consisted of changing the engine oil/filter, removing the underhood rain guard, changing the brake fluid to Castrol SRF and installing Paragon P3 pads (which folks here seem to like) at about 1,700 miles. Everything else is stock. On track, I was in R+ mode and the double-beep VSC fully off mode.
In my first run group of the first day, I was becoming re-familiar with the track for about 20 minutes at a decent clip of speed but obviously not approaching 10/10ths, when I started to notice a shudder under braking. It felt similar to a warped rotor but braking effectiveness remained fairly constant (so not like green fade when you lose braking ability). I pitted and, as there was pad residue on the rotors, the Tech consensus was that I hadn’t fully bedded the brake pads at sufficiently high heat.
I let the brakes cool down to ambient temperature and then drove 10 miles on local roads, with no issues. Brakes felt fine with both light and hard stops.
In my second run group, I did a standard warm up lap and then started to run at speed on the second lap. As I was entering the third lap, the shudder returned under braking. Two turns later, which is a “keyhole” type turn to the right, the shudder was more pronounced under braking, had a different feel and then continued after I let off the brakes and while I was turning sharply right and starting to accelerate. And, the shudder in the turn now was really moving the steering wheel, more than in the other previous occurrences (where this was happening in a straight line). I backed off and then took the car into the pits.
So, key fact here, the shudder was now present when I was off the brakes and the car was under side load. No shudder under mild acceleration in a straight line as I returned to the pits.
And therein ended my track weekend, which made for an expensive bummer. And I was the only Honda at the event, so not really putting in a good show for the brand either.
As I drove the 100 miles home, on the interstate, the car felt a little more “growly” through my foot on the floorboard. That’s a little subjective though and might just have been me looking for a clue to the issue. However, when off the highway, the car had a bit of a growl noticeable in the last 10 or so feet stopping at a stop sign from lower city speed (both slightly via the pedal and also in terms of the sound).
I have another car on my lift at the moment, so it will be a few days before I can put the CTR up and check out the car. Obviously, the car is well within warranty, but I’d like to help point them in the right direction in order to get a better end result. And, thus, I thought some other folks here might have some collective insight on what may have happened and what to check over when it’s up on my lift.
Appreciate it.....
New guy here, but I’ve enjoyed wandering through this forum before and after purchasing a 2024 CTR in May. I wanted to tap into the collective mind before I do a deep dive into a problem with my car.
One reason I bought the CTR was to explore getting back into the HPDE world after a 20+ year gap (signifiant experience in a Honda CRX back in the day), so I attended a Porsche Club HPDE at a road course this weekend.
My CTR had 2,300 miles on it on the first track day, and track prep consisted of changing the engine oil/filter, removing the underhood rain guard, changing the brake fluid to Castrol SRF and installing Paragon P3 pads (which folks here seem to like) at about 1,700 miles. Everything else is stock. On track, I was in R+ mode and the double-beep VSC fully off mode.
In my first run group of the first day, I was becoming re-familiar with the track for about 20 minutes at a decent clip of speed but obviously not approaching 10/10ths, when I started to notice a shudder under braking. It felt similar to a warped rotor but braking effectiveness remained fairly constant (so not like green fade when you lose braking ability). I pitted and, as there was pad residue on the rotors, the Tech consensus was that I hadn’t fully bedded the brake pads at sufficiently high heat.
I let the brakes cool down to ambient temperature and then drove 10 miles on local roads, with no issues. Brakes felt fine with both light and hard stops.
In my second run group, I did a standard warm up lap and then started to run at speed on the second lap. As I was entering the third lap, the shudder returned under braking. Two turns later, which is a “keyhole” type turn to the right, the shudder was more pronounced under braking, had a different feel and then continued after I let off the brakes and while I was turning sharply right and starting to accelerate. And, the shudder in the turn now was really moving the steering wheel, more than in the other previous occurrences (where this was happening in a straight line). I backed off and then took the car into the pits.
So, key fact here, the shudder was now present when I was off the brakes and the car was under side load. No shudder under mild acceleration in a straight line as I returned to the pits.
And therein ended my track weekend, which made for an expensive bummer. And I was the only Honda at the event, so not really putting in a good show for the brand either.
As I drove the 100 miles home, on the interstate, the car felt a little more “growly” through my foot on the floorboard. That’s a little subjective though and might just have been me looking for a clue to the issue. However, when off the highway, the car had a bit of a growl noticeable in the last 10 or so feet stopping at a stop sign from lower city speed (both slightly via the pedal and also in terms of the sound).
I have another car on my lift at the moment, so it will be a few days before I can put the CTR up and check out the car. Obviously, the car is well within warranty, but I’d like to help point them in the right direction in order to get a better end result. And, thus, I thought some other folks here might have some collective insight on what may have happened and what to check over when it’s up on my lift.
Appreciate it.....
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