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PUB Racing race report - new motor, new paint, new times

 
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924RACR  



Joined: 29 Jul 2001
Posts: 8334
Location: Royal Oak, MI, USA

PostPosted: Tue Jul 27, 2004 12:25 am    Post subject: PUB Racing race report - new motor, new paint, new times Reply with quote

OK, so we made it out to Waterford Hills successfully this weekend, much to my surprise! Further shocker, the car ran fine all weekend, pulled strong, stuck like glue, and overall just wanted a faster driver!

Cliff notes: engine held fine, maintained pressure (though low at speed, only 3-4 bar), cooling was great, pulled strong, sounded great. Shaved a full second off of previous best time, now down into the 1:22's, 3-4 sec off the ITB pole, a solid mid-pack. Driver still getting dialed in and calibrated, but in good spirits! Best of all, didn't bend anything! Car still looks just as good on the trailer as it did Sat AM. Pics to follow; not sure if there's anything interesting enough on video to bother watching (we were getting chased a lot, but didn't have to do much ourselves - didn't get passed much). Held a solid 4th all weekend (first in Non-Honda), until one of the CRX's dropped out, which moved us up to 3rd.

Sat AM we went out just to test the car out (practice/qual session), get the tires warm, and see if the motor would blow up. Car felt great, oil pressure holding at 3-4 bar, but temps were good (water at first mark on gauge, oil temp no higher than about 220F). We set the shift lights to 5000rpm. This motor performance was held all weekend; pulled strong, and we didn't run it over 5000rpm to be safe (since we were breaking it in).

Coming in after the session, we were shocked to find out that, even running at only 5-6/10ths, we'd matched our previous best time (from prior seasons) of 1:23.9! Looking at the data showed the inconsistency of the driver (no surprise, wasn't even trying to put a lap together, just check out the motor and keep it on track, feel out the balance of the car).

Since the driver was happy and comfortable with the handling, and tire pressures looked good, no changes were made prior to the first race on Saturday afternoon. The grid order put us behind two ITS Porsches, the 944 of Greg Steen and the 911E (2.2L) of Scott Hansen. Starting next to us was the ITA Miata of Jennifer Roma, with the ITA CRX of Mike Burke (next car in class) a full 3 sec per lap ahead of us. Clearly all that was necessary to maintain 4th was to just keep ahead of Jennifer and keep it on track - a fairly relaxed order, as Jennifer was off her own pace a few seconds.

The race progressed quite well, chasing and doing our best to hang on to the ITS Porsches. Greg Steen was able to pull ahead a bit of a lead, but we were still in contact with Hansen's 911 towards the end of the race; not pushing too hard, just keeping the pace. Roma's Miata had dropped further back. Lap time analysis afterwards showed that times were reasonably consistent, though slightly slower than the AM. Most drivers in the paddock were chatting about how greasy the track had become. Given that we'd lost 0.1g lateral capability, I guess this seems consistent.

But best of all, we survived the race! No carnage, not to us or anyone else, and no apparent injury to the motor. Looks like the motor doesn't mind running a little less oil pressure if you open it up! So, on to Sunday morning's race (actually at 12:50) with again no further adjustments, except to rotate tires on the left-hand side to equalize wear. The car is still handling great, very predictable and pointable, very very neutral, with just a touch of throttle-on oversteer. The factory limited-slip is really showing its strength now, as we're well able to put the power down quite early, with no fear of wheelspin like before... even with all the extra power we must be making.

Sunday's first race turns out to be even more fun. Again, we're able to get by Hanson's silver 911E early in the race due to tactics. Talking after the fact, he admitted he was too hot and tired in the car (in all his nomex) to push harder and try to pass. So he's content to follow us around and take pointers. Just past half-way in the race, the ITS 944 of Leo Salvaggio has gone off at the end of the back straight after contact with Burke's ITA CRX, resulting in him coming on just in front of us. As a result of his contact, when he's back on track he's driving angry and sloppy - easy pickings!

We set him up on the very next lap in Turn 3, resulting in perfect drafting position within a foot coming out of turn 5 onto the back straight. As expected, the power of his motor shows, and he maintains his position. Now, given no other traffic, we'd have pulled out, showed the nose, and got him, either under braking into turn 6 (end of the back straight) or coming out on acceleration out of 6 after he flubbs it from watching his mirrors. But we have traffic; Hansen, in the 911, has an even better run on both of us! We wave him by on the inside coming out onto the back straight, and he has no problem moving by us and halfway up on Salvaggio's 944. He then has the inside line for Turn 6, to take the position. We are subsequently in perfect position to follow him through 6 on the inside of the 944, claiming the inside line for the next corner and making it a two-fer! OK, so that'll look nice on video! Perfect team move.

But coming onto the front straight, we've all got to jam on the brakes; ambulance, wrecker, everything's moving out in front of us. Turns out the leading ITS car, the E36 BMW of Don Johnston (one of my student drivers from a couple of years back) has had his front left wheel come apart going into turn 1. Aftermarket wheels suck. As turn 1 and 2 are right-handers, he only makes it partway around, launching the car into and up over the tires, nearly half-way out of the park! He survived, thanks to wearing a H+N restraint (head+neck, an ISAAC device like ours in his case).

The afternoon race on Sunday was pretty much a similar cruise; though the Roma Miata was gridded next, the speed wasn't there, and she dropped back within a lap or two to not be a concern. However, once again Salvaggio's 944 dropped off/spun fairly early in the race - maybe lap 4 (out of 10). This put him just behind us. Imagine our surprise to look in the rearview and see a red car approaching! At first, we thought it was Roma again (red Miata), but after the first lap or two watching the mirror we realized it was Salvaggio in the 944, and the pressure eased a bit. Still had to keep up the pace, though, as a matter of pride! Once, he was close enough to almost get a run on the outside of 1... but we've NEVER been passed on the outside of 1, so we left the door wide open, just to make the point! No trouble pulling away from there. Looks like he was still driving a bit angry and sloppy. We continued to push the pace harder and harder, finally dropping into the 1:22's on the last two laps thanks to Leo providing the motivation! Final gap between us at the finish was just a few tenths, with Leo working to again move up the outside of 1... but still behind at the finish!

An excellent weekend, with the engine, the chassis, and the driver all proving there's more speed there to be had for the taking! Next stop, Mid-Ohio August 20-22nd for the GTS Challenge Blitz! We'll get to party with the Jadczaks there, again with Greg Steen, and some of the 924S's...
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Vaughan Scott
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'79 924 #77 ITB racecar
'82 931 Plat. Silver
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US924s  



Joined: 28 May 2004
Posts: 25
Location: Racine, Wi

PostPosted: Fri Jul 30, 2004 1:31 pm    Post subject: Reply with quote

I know alot of people prefer the book but I was always into the video. Its not that I dont have an imagination. As a matter of fact its quite the opposite and your narrative is excellent, btw. I just keep getting slobber on the monitor from making race car sounds while Im reading.

Wheres the video?
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Chrenan  



Joined: 15 Jan 2003
Posts: 3899
Location: Canada

PostPosted: Sat Jul 31, 2004 12:49 am    Post subject: Reply with quote

Congrats, sounds like a fun time. Thanks for the writeup...
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924RACR  



Joined: 29 Jul 2001
Posts: 8334
Location: Royal Oak, MI, USA

PostPosted: Mon Aug 02, 2004 12:10 am    Post subject: Reply with quote

Thanks guys! Video I still have to set up and run the video capture program. Been a while.

Here's the pretty on-track pics (photo courtesy of Jonh Gacioch - sorry for the large size):


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Vaughan Scott
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'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
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ryoji  



Joined: 10 Oct 2003
Posts: 168
Location: NNJ

PostPosted: Mon Aug 02, 2004 10:16 am    Post subject: Reply with quote

Nice pic!

What is the material of the front air dam/chin? how about a splitter?
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924RACR  



Joined: 29 Jul 2001
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Location: Royal Oak, MI, USA

PostPosted: Mon Aug 02, 2004 10:12 pm    Post subject: Reply with quote

Thanks! The front air dam material is a flexible plastic belt, used for conveyor belts. Happens to be a pretty shade of red.

I haven't made a splitter, that would need a different (rigid) type of air dam, and I kinda like the flexible one.
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Vaughan Scott
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'82 931 Plat. Silver
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ryoji  



Joined: 10 Oct 2003
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Location: NNJ

PostPosted: Wed Aug 04, 2004 9:59 am    Post subject: Reply with quote

Do you notice any improved grips by the air dam?

Do you think there is benefit having a splitter just under the spoiler? I wonder if it is too high up from the earth?
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PostPosted: Wed Aug 04, 2004 10:48 pm    Post subject: Reply with quote

It's not possible to say for sure, as that change was not made alone; other changes to the suspension setup prevented a proper A-to-B comparison. However, it should improve top speed for one thing.
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Vaughan Scott
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