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Old 05-24-2004, 10:52 AM   #1
H.K. Phooey
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Default Texas High Speed Shootout RESULTS

Ok here we go, the Stage 4 WRX Psycho Wagon ran 146.97 miles an hour through the 132ft traps at the top of the mile. The is a 12.98mph gain over last year, even with an average 18mph headwind this year.
Adjusted I was told with no wind and the co/drag ratio I should be at 155. I'm not sure how he figured it but he is a 200mph club member at Bonneville. I assume he knows his stuff.

On my 2nd place.
On my first attempt to hit right at 140.000, I backed off and hit 139.979mph. I thought that was good enough to win.
The Riplers 1st place was full throttle and he hit 140.018, our difference was 0.039.
The winning difference was .003 closer than myself. It was the closest race class.

Now what really counts.
Top Speed winner THE WRX WAGON 146.97mph
2nd place THE STi 142.40 I think, Ripler can correct it if I'm off.

Here is a link with some pics and a video of the Wagon at speed 146mph+

http://bearadvertising.com/146/

A few cars at the event I caught times from.
176 MPH Supra 608hp.
170mph Trans Am 498hp
167mph Cobra 611hp
170+mph Z06
130+ Audi A8
133mph+ A Mustang GT
142mph 99 Camaro 340hp
Lingenfelter Vette 170+
about 10 Bikes 175+
An old Chevy truck with a 502 crate motor 140+
And about 20 other cars, or Land Speed cars.
Not running
3 AC Cobras and a Sunbeam Tiger, the wind was to high.

The event was great, the people running the event were cool, inspection was easy, runs were run as many times as you can.
The Audi made over 40 passes.
The Wagon made 22 runs, test and tune was top notch. I made my best passes with the Intercooler Frozen with Shaved Ice in the coils and Dry Ice covering 1/2 the intercooler, the vapor was cool coming out of the front of the scoop. People really loved our cars, bench racing was top notch.

We all got together at the hotel at night had a few drinks, hung out by the BBQ pits, the drivers on Saturday night headed for the only Mexican food place in town and that was cool.
It did not cost that much for what we got.
$101.68 total for my room, food and beer was $96.00, $30.00 was Gatorade and water. Dry Ice was $55.00
Race Fuel was $40.00 109 unleaded and 104, and gas there and home was $31.00
Total was $323.68 and worth every penny.
Scott
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Old 05-24-2004, 10:57 AM   #2
neversatisfied
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Wow. Sounds like a good time.
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Old 05-24-2004, 01:28 PM   #3
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Awesome Scott.. Looks like you have about 10mph left before the ECu shuts you down. 146 in that wagon is movin!

P.S What was changed on the car from last year?


Clark
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Old 05-24-2004, 07:27 PM   #4
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Went from the stage 2 to the stage 4 with the lighter rims and good tuning. With the 18-20 mile head wind, I was told I should see 155+.
Scott
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Old 05-24-2004, 07:27 PM   #5
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http://bearadvertising.com/146/

look here for the video
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Old 05-24-2004, 07:42 PM   #6
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I would love to run in an event like this. There was one last year in AZ that I thought about but decided my setup was not worthy. I think it was a 20-30 mile one way timed event. I did not think my car would take 20-30 miles at WOT. Not many high hp turbo 4's will. Your car saw more stress then probably 80% of the cars on these boards. Glad it survived for you Scott.

Cya

Clark
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Old 05-24-2004, 07:46 PM   #7
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Great results, good job!!!!

Nice to hear you guys did so well.

Larry
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Old 05-25-2004, 09:50 AM   #8
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Quote:
Originally posted by H.K. Phooey
I made my best passes with the Intercooler Frozen with Shaved Ice in the coils and Dry Ice covering 1/2 the intercooler, the vapor was cool coming out of the front of the scoop. People really loved our cars, bench racing was top notch.
I was just about to ask how you dealth with IC flow. Can someone confirm for the record at what speed the front airflow goes over the hoodscoop (as in, not through it)?

When I do high speed runs, the EGT's start to climb. I've never run it though 5th gear now that I have more power. Too afraid to pop it. Being at WOT that long is scary.
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Old 05-25-2004, 10:13 AM   #9
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Quote:
Originally posted by TypeC
I was just about to ask how you dealth with IC flow. Can someone confirm for the record at what speed the front airflow goes over the hoodscoop (as in, not through it)?

I am pretty sure that any number people throw around will be pure speculation.
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Old 05-25-2004, 11:28 PM   #10
H.K. Phooey
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take the co/drag # and work from there. I can say that when I removed the tape and did the same thing on 15degree cooler run, my speed went up 6mph.
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Old 05-25-2004, 11:42 PM   #11
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Its pretty easy to test. I had a temperature probe on my intercooler case for most of the last 3 years. I put it on the front of the case beside the outlet and covered it with a bit of insulation so it was recording the true case temp not the underhood air temp.

Once I got it in place I started playing around with various changes to the TMIC ducting and on one occasion I saw a clear indication of what you are worried about.

Before I comment on that, it is in my view not an issue of the air flow going over the hood scoop, it is an issue of the engine compartment becoming pressurized and air flow going out the hood scoop at speed rather than in.

One of the popular mods when the WRX first came out was to take the hood to TMIC duct out. DON'T do this. What happens is most of the air flow passes around the intercooler, and at speed the majority of the air flow moves farther back on the intercooler without the containment of the hood duct. In my car at about 45 mph, this removed duct setup would suddenly shut off TMIC cooling as flow started bypassing the intercooler entirely. I could drive on a long straight road and at 44 mph see intercooler temps slowly drop, at 45 mph they would hold stagnent and at 46 mph they would start to climb.

You could partially compensate by putting a splitter in the hood scoop to force more of the flow toward the front of the intercooler but the cooling would still taper off at speed.

With a tight seal between the hood and TMIC at least at legal highway speeds the cooling remains constant up to at least the 80 mph+ range. The stagnation temp of the intercooler slowly increases at speed, due to increased engine load.

At 80+ mph pulling a very long mountain grade temps will get up to about 35 deg F above outside temp, at about 30 -35 mph at easy cruise the stagnation temp is only about 3 -5 deg F above outside air temp, depending on if you are driving into a head wind or tail wind.

If you do high speed runs I would very strongly recommend you put a cheap outdoor thermometer probe on the intercooler case and that will tell you if you're getting into trouble and it will only cost you about $15, and about a 1/2 hour to mount it.

Larry
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Old 05-26-2004, 12:47 PM   #12
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As always thats good advice Lary. Another option is the SPO gauge that has two probes. One pre and one post IC. The neat part is that there is a center switch postion that shows the difference. I wonder how the Zero sports IC duct works in comparison to the Stock duct. That might be worth a test. Also. The Cusco Hood scoop that has the side splitter. I think going to an FMIC on this car would really be worth the effort.

C
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Old 05-26-2004, 01:34 PM   #13
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Quote:
Originally posted by H.K. Phooey
take the co/drag # and work from there. I can say that when I removed the tape and did the same thing on 15degree cooler run, my speed went up 6mph.
What did you change? I don't see you mentioning tape anywhere above and don't know what you are talking about.

Quote:
Originally posted by AZScoobie
I think going to an FMIC on this car would really be worth the effort.
For high speed safety, I agree. Then you'd have no doubt that it is getting maximum cooling.
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Old 05-26-2004, 08:18 PM   #14
H.K. Phooey
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I like the stealth look of my car, I know a regular hood and a FMIC would be stealth but I like the stock look.
I had 2/3 of the scoop taped off. With the TMIC covered with dry Ice I knew I was getting cooling. When my run was done, I still had ice on the top after the mile down and mile back to my pit area.

When I took the tape off, covered the TMIC with dry ice, turned up the boost by 1.5 pounds, I ran faster, go figure. I was not scientific in my approach, I was more grasping at straws.
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Old 05-26-2004, 09:33 PM   #15
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Quote:
Another option is the SPO gauge that has two probes.
Clark you have a link to that gauge, been looking around and haven't been able to find a listing for it yet.

Larry
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Old 05-26-2004, 10:30 PM   #16
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Hotrod, that was a great post.
The next event will be July 31st, nice and hot.
Scott
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Old 05-27-2004, 01:03 PM   #17
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Larry... I first saw the gauge in Dans car from Vivid. I just sent him an email asking where he got it. Its not on the vivid site.. I am sure he will know.. Its a really neat small panel with an LED readout and toggle switch.

C
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Old 05-27-2004, 01:33 PM   #18
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is downforce an issue?
I have almost 300 to the wheels and wanted to test top speed. I've been timid without nice tires but I have new ones now.
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Old 05-27-2004, 01:43 PM   #19
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The SPO gauge seems similar (in function at least) to a gauge made by Davtron (they make a bunch of stuff for aircraft). I've been considering getting one of their gauges for a while but have never gotten around to it. I have read a few instances of it being used on cars for pre and post IC temp monitoring. It sounds like it sells for about $150, but its not listed on their website and I've never called or emailed them about it.
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Old 05-27-2004, 09:03 PM   #20
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Default Look like this ?

Clark:

Did it look like this ?

http://www.lindseyracing.com/tempg.htm

Larry
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Old 05-28-2004, 09:59 AM   #21
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Quote:
Originally posted by hotrod
Clark:

Did it look like this ?

http://www.lindseyracing.com/tempg.htm

Larry

Quote:
Digital Intercooler Temperature Gauge
Part # INTG-1
$249.95
Kinda pricey!
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Old 05-28-2004, 12:24 PM   #22
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Quote:
Originally posted by hotrod
Clark:

Did it look like this ?

http://www.lindseyracing.com/tempg.htm

Larry
That looks like the Davtron gauges. I thought I read that they were only $150 but that could be wrong. Davtron also makes a gauge that will give you the before or after temp, but not the difference. This would probably save some money, but I'm not sure how much.
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Old 05-28-2004, 01:35 PM   #23
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Thats it larry... Yes.. Not cheap guys.. But it does come with two probes and will provide hours of useless and sometimes usefull data

C
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Old 06-28-2004, 07:52 PM   #24
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Clark:

Do you know if there are spare probes available for these gauges yet?

I'm thinking about a set up where you can switch between two sets of probes.

Have you actually worked with these on the dyno down at Kingpin yet? It would be great to get some temp profile information from dyno runs. I know a couple folks that have had cars cooked during dyno runs at shops that did not run proper cooling fan setups.

Larry

Last edited by hotrod; 06-28-2004 at 07:59 PM.
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Old 06-28-2004, 08:00 PM   #25
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I have located about 10 of these gauges and had been doing some testing. These are ultra cool.. It really shows the effeciency of your IC. Sit in traffic and that TMIC heats the air right up.. FMIC's of course do not have this problem but you do get some heat rise.. Probably do to the pipes getting hot.. My gauge is going to allow me to experiment with my setup. I might try to wrap my IC pipes and see the difference.

C
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