Going to National Trail Raceway Today

It's the very last day of the year they are open.
It's a test and tune from 12-5
It's my first/only time to the track this year. LOL

If anybody else decides to go, I'll see ya there!
Ugly blue 1976 GMC pulling a red mustang on a tow dolly.

I expect the track to be in very poor shape, as the last two events of the year are T&T's... last Sunday and this Sunday... and the track hasn't be used "competitively" for a couple weeks.

High of 62 and sunny!

Originally Posted by n2omike

It's the very last day of the year they are open.
It's a test and tune from 12-5
It's my first/only time to the track this year. LOL

If anybody else decides to go, I'll see ya there!
Ugly blue 1976 GMC pulling a red mustang on a tow dolly.

I expect the track to be in very poor shape, as the last two events of the year are T&T's... last Sunday and this Sunday... and the track hasn't be used "competitively" for a couple weeks.

High of 62 and sunny!

Glad to hear that you are making it to the track again. Good to fed the need every once in the while.

Our Friday night races have been rained out 4 weeks in a row and it gets old loading and unloading the trailer with no "happy ending." This Friday (last one of 2009) looks iffy, with the weather going back and forths.

I guess you found a good use for that ole PA truck . . . . .

Hope that you get us some video.

Good Luck Mike!

Give em hell Mikey!..Wish I could have gotten out this year.

Hope you had a good day. I went to trails last Sunday, it was a little cooler than today, high around 50*. Track was great early on, I managed a new personal best of 10.91 @ 120, with a 1.44 60 foot. Later on, near 5:00, I made my final pass, pulled a 1.43 60 foot, but right after the 60 the track went from great to greasy, stayed in it and fought it the whole way.....managed a 10.95 @ 119. It felt like it would have been quicker if I hadn't had to wrestle it down the track. My buddy ran right after me and almost ended up in the wall, had to let out at 3/4 track. We decided to load up, even though they decided to stay open till 6:00.

Ugly blue 1976 GMC pulling a red mustang on a tow dolly.

I thought you towed with a little 4cyl courier or something like that? Did you decide you didn't want to leave at 6:00am to get there by 12pm, and wanted to make it home before midnight? LOL!

Well, here's how the day went! (no video, though)

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Run #1 (no bottle)
60ft 1.645
1/8 7.524 @ 91.97
1/4 11.798 @ 114.8

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Run #2 (200hp plate)
60ft 1.471
1/8 6.539 @ 105.74
1/4 10.233 @ 132.74

At this point, I walking on air!
Thought it must be a fluke, so a back-up pass had to be made.

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Run #3 (200hp plate)
60ft 1.444
1/8 6.480 @ 105.99
1/4 10.157 @ 133.68

More high stepping, and an non-removable huge smile!
Backed up AND THEN SOME!

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Run #4
60ft 1.598
1/8 6.676 @ 106.09
1/4 10.353 @ 133.78

Spun. Track is starting to go away at this point.

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Run #5
60ft 1.594
1/8 6.694 @ 105.65
1/4 10.385 @ 133.32

Carbon copy of the last run.

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Run #6 (no bottle)
60ft 1.657
1/8 7.442 @ 93.29
1/4 11.662 @ 116.29

A -little- redemption from the first run.

------------------------

ALL FOUR nitrous runs were made on the SAME bottle. (no purging or wasting nitrous, and mph didn't fall off one bit from one run to the next)
I was a bit disappointed in the n/a run, so I decided to make one more pass off the bottle to see if it would do any better. (It REALLY likes the bottle, plus I don't really have it set up to run n/a... gear, etc)

I was FLOORED at how it ran on the bottle!
I was expecting maybe 10.4's if it was running/hooking well, but it far exceeded expectations. The only changes that were made between this trip and last year were moving the Cal-Tracs to the BOTTOM HOLE, which made a HUGE difference, and tightening up the fitting that holds the nitrous jet into the plate. (it was loose around 4 turns) Oops!

The car launched SO MUCH SMOOTHER with the bar in the bottom hole. GONE was the POGO and BOUNCING from the excessively violent hit from having it in the top hole. Car worked MUCH better. I also dropped the clutch down to its minimum of 800lbs.

One thing I noticed, was that I could smell the clutch at the end of each nitrous run.... so I think it's slipping in high gear. Fixing that might help the mph a bit, but I doubt it will help the ET much. I'm thinking about adding a little weight to the clutch and see what happens.

Awesome way to finish the year!

To say that I'm happy is an extreme understatement!

Combo...
3300lb w/driver 1966 mustang STREET car.
Stock small in/out wide ratio toploader 4-speed
4.33 Detroit Locker in a Factory 'N' case and Daytona Pinion Support
Moser 31 spline axles
28x9 Hoosier Slicks

Engine:
Holley 950HP
Victor Jr intake
Trick Flow Twisted Wedge Heads (owner ported)
10.5 compression PUMP GAS w/o the bottle
Mexican Block 306ci
Boss 302 crank
Boss 302 rods
242/254 @ 0.050" 110 LSA SFT camshaft
1-5/8 headers
6800 rpm shift point.

Sweet Mike!!!

You really had it digging for the 10.15 run--a 1.44 60'er is just awesome. Glad that you picked up on the advice to use the lower Caltrac setting for a softer hit. You still launch off the giggly? I can't believe how that car hooks. Are you running the 28" tall tire?

With the spray you probably were driving through a slipping clutch in the upper gears. Even so, you were probably very close to optimal. The smell may have come from not being cooled down between runs or you don't have enough throwout bearing free play, which tends to go away gradually over a few runs. Just something to check before you put the base back in it for street duty.

Good Job Mike!

Holy Crap! ..10.15!

I thought cold tracks don't hook well?..A buddy of mine up here set personal bests as well just a week ago in very cool temps.. Said it was hooking like crazy..

Originally Posted by frdnut

Holy Crap! ..10.15!

I thought cold tracks don't hook well?..A buddy of mine up here set personal bests as well just a week ago in very cool temps.. Said it was hooking like crazy..

Oh they can hook good--just takes a little more burnout. I've always done my best at this time of the year.

10 teens are awesome! Nice job Mike

Excellent outing Mike. I am really impressed with the time and MPH for that small block. Did you change the fuel pressure or timing any? What timing and fuel pressure are you running?