Da Pumpkin returns to PIR...

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Shoaz

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Had our first event after the summer break last Sunday. This is the first time the Pumpkin's been on the track since the night event in June where I only got a couple of warm-up laps. That problem turned out to be a VSS wire I inadvertently pulled apart when I fixed a faulty heater hose. Apparently there's some bizarre strategy in the ATX 'puter that shuts the motor off at 6krpm if there's sufficient load and no VSS signal and no tranny feedback.

Anyway, had a very interesting day. The ABS crapped out when I added an auxiliary rad fan (Roush's aux fan circuit uses the switched ABS power to drive a relay, but I can't find anything wrong in that circuit), and the tranny pump crapped out. Neither keeps me off the track, although the lack of ABS may have slowed me down a little bit in T6 and the carousel, just because you can't be quite so bold going in there without it.

So here's the vid, 13 or so minute's worth:

http://www.ericjacobsen.org/vids/sho/PIR09_07/PIR_09_07hr.wmv - Hi res, about 76M.

http://www.ericjacobsen.org/vids/sho/PIR09_07/PIR_09_07mr.wmv - Med res, about 51M.

Some stuff in the vid:

The Studebaker is awesome. They were shaking it out for some endurance rally in Mexico. 3300lbs or so, a nice, well-built V8, pretty much how you'd build a modern race car if you were starting with a Studebaker. The only glass was the windshield, which I though was a little odd, not even lexan for a rear window or sides. Maybe they're doing that later, I dunno. It's a gorgeous car, I always liked the styling on that model, and it appeared to be
very nicely built and prepped everywhere.

I'm considering moving up to TTC next year since it's the only way I can get rid of some more weight and do anything to the motor (like EH, BBBs, 3.0 cam, etc.). I kept a long-ish section in the vid where I'm following a white 350Z, which is a TTC car and very well driven. That guy would likely be my main competition. Because we're getting so many cars in TT (36 this vent), and because there's been some low-level grousing going on about various competitors, we were all required to get weighed at the track. My car was 3445 lbs with me and 3/4 tank, and Ed's white 350Z was 3449 lbs, and he has about 70chp more than I do. His fast lap of the day was about a second and a half faster than mine, so I got some work to do if I do change classes.
 

NJSHO

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Eric, a little ot, but what do you use for a tow vehicle to get the sho to and from the track? Do you have a full trailer or a tow bar?
 

Shoaz

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Eric, a little ot, but what do you use for a tow vehicle to get the sho to and from the track? Do you have a full trailer or a tow bar?

You musta missed that thread... ;)

Rig

I borrow a very nice tilt-bed trailer and pull it with my 4.0L Ranger. Since there are no substantial hills around here that works just great. I wouldn't take it out of town with that, but I don't really need to. If you need to go long distances where hills are involved, I'd get a bigger tow vehicle.
 

K-Dawg

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That C6 Vette really rockets away from you in the straights.

Is that a riced out 3G Eclipse? Didn't know anybody ever tracked those.

Why does it sound like there is stuff banging around in the interior? Also, I'm curious why you still have the EATC headunit in the car?

Cool vid. Not bad for an old grandma car. :thumb:
 

Shoaz

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That C6 Vette really rockets away from you in the straights.

One expects Vettes to do that...there are a lot of powerful cars that you pretty much just watch go by. ;)

Is that a riced out 3G Eclipse? Didn't know anybody ever tracked those.

Yeah, it has a ton of stuff bolted onto it. There's a pretty funny back story to that: the guy that owns it wasn't driving it, but our TT director, who is quite fast, took it out to more or less show the owner that the reason I'm beating him isn't because the cars aren't competitive with each other. The guy that was driving took three seconds off the lap times of the guy that owns it.

Why does it sound like there is stuff banging around in the interior? Also, I'm curious why you still have the EATC headunit in the car?

The noise on the banking is the crap coming off the tires and tire turds or debris left by the guy in front of you getting kicked up. Once in a while there'll be a big tire turd let go and go BANG! real loud...which can be a little entertaining if you're right on the limit on a fast corner.

The EATC is still in because I use the heater when the engine temp starts to climb. I leave it set to 90F with the fan on full blast, and just select Floor or OFF depending on whether I need the extra cooling.

Cool vid. Not bad for an old grandma car. :thumb:

Thanks. ;)
 

Shoaz

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I had one person say that they had trouble accessing the vids. Has anyone else had trouble with the vids?

If you tried to view either of the vids and couldn't get access, let me know either here or via PM.
 

SinisterSHO

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If you move up to the TTC class, are you limited to using the 3.0 cam, or just using that as a cheaper alternative to bigger than stock cams? The different class allows more power and less weight, but to what extent?
 

Shoaz

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Well, if you're really bored and you really wanna know, go to

http://nasa-tt.com/Rules

The Pumpkin is well over the minimum weight for the car, so at the moment I class by modification points. The SHO is classified as a base class of TTF**, or halfway into the TTF points class. The mods I have right now move me up to TTD with only a little bit of margin before I get bumped into TTC. About the only thing I can do right now is gut the rear doors, which would be worthwhile but I just haven't done yet.

I'd like to gut all the doors, and replace the glass in the rear doors with lexan. That alone will move me into TTC, and I hope to have enough points left to do a few engine mods. All the mods carry associated point penalties (which you can look up in the rules or the classification sheets), and you just have to budget where you think you'll get the most gains without incurring too many points to get moved up into a class where you're no longer competitive.

So far I've done well, since I'm leading the points in TTD in AZ this year with only a few events left until the end of the season. I was second in the points last year, mostly because I didn't show up as often as the guy who won...I beat him whenever I showed up, but he showed up more often, winning when I wasn't there and taking 2nd when I was. At the end of the season he'd accumulated quite a few more championship points than I had.

That's typical in amateur competition: the people who bother to show up regularly clean up in the points.
 

SinisterSHO

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So, if I'm reading it correctly, theres not really anything saying that if you make x amount of power that you get bumped up a class. I do however, find it odd that changing the final drive ratio does not add any points.
 

Shoaz

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So, if I'm reading it correctly, theres not really anything saying that if you make x amount of power that you get bumped up a class. I do however, find it odd that changing the final drive ratio does not add any points.

The general TT philosophy is to class by power to weight ratio. If your car is below the minimum weight or is otherwise bumped out of points classification, then you need scale weight (with fuel and driver) and a dyno sheet. A lot of the competitors in the upper classes, TTS/TTR/TTU/TTA are classed this way. It does get complicated, so I've really only been focusing on what I need for my little corner of the series.

We did all have to get weighed last weekend. If you look at the TTA-TTF classification sheet you can elect to use either the point method or the "alternate" method if you're above the listed curb weight less 150lbs. I'm better off using the points, so that's what I do. I list my minimum weight as 3410, and when I got weighed on Sunday it scaled at 3445 lbs.

Final drive is probably free since it affects neither output power nor weight. It's just a gearing selection, ultimately. Personally I've found it to be a pretty sensible rule system. The guys that complain the most are guys with big aftermarket turbos, since they get hammered on classification. Things like that, e.g., retuning the EEC, are very difficult to police and control to maintain fairness, so they tend to take the biggest hits in the classifications.

The rule set is not without controversy, but few are. Most people don't take it too seriously, we're mosty out to have fun. I get ribbed because I pay more attention to the rules than most people.
 

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