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Putnam racing lines??

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Old 05-18-2005, 10:34 PM
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tar6day
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Default Putnam racing lines??

I'm racing at Putnam Racepark (Indiana) and need some idea of the correct race line thru each turn.

Thanks
Old 05-18-2005, 10:35 PM
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Greg Fishman
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Do a search for some of Norm Goldrich's posts last fall, he did a nice turn by turn analysis.

Also if you go to Putnam Park's website there is a tutorial by Ron Fellows.
Old 05-19-2005, 10:26 AM
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joey bagadonuts
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Here's Norm Goldrich's write up from page 2 of this discussion last Fall. See you this weekend!
I touch the apex curbing at turn 2 (to get turned in at the entry I left foot tap brakes with a little trail braking and keep throttle floored so I do not lose boost but yet still transfer the weight to the front so it will turn in at high speed- I can carry much more speed that way),

still floored, drift out to the curbing on the left for 3

still floored, close to the curbing at the right (after three entering 4) move towards center of track

lightly left foot tap brake to transfer weight and get the nose turned in - yes its floored

Im am actually on the apex curing on the left side of 4

Exit floored and the car drifts all the way on top the the exit curbing on the right. Just dont go too far or you will end up in the nasty bumpy infield and hurt things...

Depending on your power and gearing you may go up 1 gear then back down 1 gear before entering 5. Or you may be at the top of your rpm range.

5 is verrry fast - did I mention fast (3 digit speed in my car). Most people over brake. It is only a slight tap of the brakes to get the nose turned in and then my right tires drive right over the whole apex curbing on the right.
The car is floored. The car drifts all the way out on top of the exit curbing. Be smooth and extremely precise you do not want to end up off the track.

6 is not a turn, I take it floored and my right wheels go right over the curbing.

Floored until I brake for 7 .

9 & 10 - well lets say I take the fast race line. The line we teach in DE is the safe line. For someone with lots of experience, it is not the fastest line. The 9-10 transition is very fast. The car will move around and hop a lot - feels like the Sebring turn entering the front straight.

After exiting 8 I drift all the way onto the exit curbing on the right then end up heading straight towards the left side of the track for extry into 9. I am a few feet off the left. Tap the brakes and head towards and then actually touch the entry curbing and apex curbing on the right and modulate between floored and a little less. As you crest from 9 to 10 the car will hop and bounce (at least mine does since it is so stiff) and I stay in it and control it. However, it is always a little disconcerting even when you are used to it.

I then drift left and touch the 10 entry curbing on the left (near pit entry) and turn in a little late for 10 so I am pointing down the straight, not directly at the guard rail. Carrying enough speed that the car drifts on top of the exit curbing...

All that being said, I would suggest only trying new things in minute steps. Try one at a time because an increase or change in one turn will cascade and affect your next turns.

My last qualifying time was 1:09.9. I am continuing to do shock setup and think I can get in the upper 1:07's once I get the suspension dialed in better.

Hope that helps. Of course this is just my opinion and there is no warranty on this because to do it fast you are always on the edge - read at the risk of danger. Which is not appropriate unless you completely know your car, the track, have a lot of experience and can handle it...

How's that for a disclaimer.

In any case, at least maybe it is interesting....

Also, my car has a locked spool no diff, which makes it that much more important to really push the car and left foot brake to get it turned in...

It's like driving a shifter kart.

This is all from recollection, but hopefully I am remembering accurately. Most likely I am forgetting a few important things..

Norm



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