First track day with the RX7
07-07-09, 02:51 PM
#1
Eats, Sleeps, Dreams Rotary
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First track day with the RX7
So went out to my first track day with the rex. Still untuned so I was keeping it pretty easy all day. Never went above 3/4 throttle and was holding with "B" group all day (intermediate... one of the plus's of organizing the event was not having to run in the novice group).
So far after yesterday I need an IC BAD!... I could only do about 3 hard laps before the air intake temps hit 60 and I needed to cool down. Other than that my rad was OK and held at 94 at most (stock, but yes I know I need a better one it's on the lsit). Other than that, wheels/tires are the biggest thing. It was partially wet and my Kuhmo street tires were not the best.
Cool down lap.
and my fav pic of the day....
So far after yesterday I need an IC BAD!... I could only do about 3 hard laps before the air intake temps hit 60 and I needed to cool down. Other than that my rad was OK and held at 94 at most (stock, but yes I know I need a better one it's on the lsit). Other than that, wheels/tires are the biggest thing. It was partially wet and my Kuhmo street tires were not the best.
Cool down lap.
and my fav pic of the day....
07-07-09, 04:34 PM
#6
Weird Cat Man
I'm far from a track expert - but aren't you running a lot of negative camber (particularly up front)?
I've only had my FD on the track once and it was a lot of fun!
B
I've only had my FD on the track once and it was a lot of fun!
B
07-07-09, 04:54 PM
#7
VV That's mine VV
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Nice pics. The track is the real home of the 7. I only got one HPDE in before my motor succumbed to coolant seal failure (I know what you're thinking but my max temp of the day was 194 F). I look forward to returning.
(forget to latch your hood in that 7th pic?)
(forget to latch your hood in that 7th pic?)
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07-07-09, 05:12 PM
#8
Eats, Sleeps, Dreams Rotary
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turns in on a dime and the pyrometer was reading fairly even across the board. I might pull it down to -2 for the next track day though.
07-07-09, 09:15 PM
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Eats, Sleeps, Dreams Rotary
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... well it's tuned by me. just not for power... more for safety. Knocks never went above 20 while running .6BAR. Ambient was about +10-15 or so and wet/raining outside. Water temp never went over 94 with an average of 89-90. The stock IC is just a giant POS. No questioning that. I don't know if I mentioned up top at all, but I didn't go full throttle all day and kept the car under 5-6K RPMI wasn't planning on running at all, but since I was there anyways running the track day I decided to do a few sessions (three in total).
07-07-09, 09:30 PM
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Eats, Sleeps, Dreams Rotary
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no not crazy I swear . I built the car up myself. Bought an engine and threw a TD06 kit on it/fuel system/PFC/Wband etc. Just waiting for funds for a new IC and radiator and have to get some pipes fabbed up. That's the main reason I haven't had it dyno tuned yet (that and I have to go to the US for a reputable company).
. I built the car up myself. Bought an engine and threw a TD06 kit on it/fuel system/PFC/Wband etc. Just waiting for funds for a new IC and radiator and have to get some pipes fabbed up. That's the main reason I haven't had it dyno tuned yet (that and I have to go to the US for a reputable company).
07-07-09, 10:12 PM
#15
Try it with less -camber. I think you will be pleasantly surprised and your tires will last longer
FWIW,
Crispy
- 93 FD "track tested" 422rwhp GT35R ...w/little frotn -camber
- 88 FC ITS #47...w/LOTS of front -camber
07-07-09, 10:16 PM
#16
Eats, Sleeps, Dreams Rotary
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cool... that's something I didn't know. I owned a Skyline before which I stole the alignment settings for a starting point.
I do a fair bit more AutoX than track days though, so would you say it's OK to compromise with 1.75 to -2?
What about rear camber and front castor settings? Right now I'm running -1.5 rear and +6 castor.
I do a fair bit more AutoX than track days though, so would you say it's OK to compromise with 1.75 to -2?
What about rear camber and front castor settings? Right now I'm running -1.5 rear and +6 castor.
07-08-09, 09:58 AM
#22
Diamond Cut Seven
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You should perhaps reconsider. The double wishbone suspension of the FD doesn't need the big negative camber angles that a MacPherson strut suspension needs to maintain a good contact patch during cornering. That's the beauty of the FD. Truly a car designed for handling. -camber in the -1.0 degree range is probably more appropriate for track use unless you are doing hardcore autoX and even then -2 deg is probably too much.
