Video of Whippled Dark Horse on a Road Course

[Junkyard Dog]

LMR installed a Whipple on their Dark Horse with a manual Tremec and took it to Motorsports Park Hastings in Hastings, Nebraska.

I don't know what the temperatures are, but everybody is in shorts and T shirts (EDIT - 71 degrees). It is also not a serious shakedown run. It looks like they are just having some fun on track.

Anyway, fun video, complete with an off track excursion into the grass.

Enjoy.

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[Junkyard Dog]

Cheap Kenda tires - wow, you can hear them screeching and howling on every turn.

Heat - The Mustang did not go into limp mode or anything, but in the commentary afterward, he said the power was down, as he was not able to accelerate much more than the red Mustang in the video and it did not feel like all of the power was there. I guess he was not watching the actual temperatures or logging anything with the ECU and spark timing.

 

[Junkyard Dog]

Toward the end, he says:

200 oil temp. (that's nothing)
190 differential
220 CHT (again, that's nothing for on track)

Does Whipple power fall off at such low temperatures?

 

[Junkyard Dog]

P0217 "engine coolant over temperature"
P0430 "catalyst system efficiency below threshold on bank 2"

And a cool bit of video where a guy is tracking his late 60s classic Mustang.

So the P0217 does not seem to match the temperatures he recited above? What coolant temp trips that code? 250?

 

[B229218]

A hot lap of my Whipple drag racing it heated up Hella quick. I don’t think the supercharged car w/ automatic is the best route for road racing. I think a Tremec or maybe the dual clutch better for heat. I wonder how the GTD is handling all that extra heator even the SC. I would think a cooler Differential would be running the Detroit locker because you got ratchet and gears rather than clutches, it should build up less heat back there. I don’t know. I’ve never been in the road racing. It looks like a blast but I think you need a car lighter than a stock dark horse.
I remember when the last GT500 were being tested, they said they would eat an episode of tires pretty much one day session because the front end was so heavy. That’s where the carbon fiber track pack seem to help out.
I don’t want I think our cars run awful hot from the factory. I think a lot of that has to do with probably emissions compliance.

The old days of carburetors, we would try to keep our transmission fluid and engine oil down under 210, water temperature around 180 to 200 degrees max. We’re running now at 12 to one compression. That’s gotta be a tight rope keeping it from blowing itself up with destination and boost. The Whipple tune/Ford racing is forced to dump in a lot of extra fuel to keep it out of that nation. That will heat up a catalytic converter very fast.

 

[Dark Sprite]

Approx how many hot laps can you do in the NA dark horse (non-hp) before it overheats and goes into limp mode?

I’m keen to get mine on the track soon but ambient temps are 35-45°C, so am I going to struggle to do more than a couple of laps at a time?

 

[B229218]

Approx how many hot laps can you do in the NA dark horse (non-hp) before it overheats and goes into limp mode?

I’m keen to get mine on the track soon but ambient temps are 35-45°C, so am I going to struggle to do more than a couple of laps at a time?

I’m sorry I don’t have a dark horse just a regular GT with a Whipple and an A10.
If you have a manual, I think it will do much better on the track. It seemed manuals are built for road racing automatic best for drag racing..

If you don’t have FI and you have the factory fluid coolers. You should do a lot better on the track either way go and enjoy.

 

[Junkyard Dog]

Approx how many hot laps can you do in the NA dark horse (non-hp) before it overheats and goes into limp mode?

I’m keen to get mine on the track soon but ambient temps are 35-45°C, so am I going to struggle to do more than a couple of laps at a time?

Don't quote me on this, but I think the non-handling package Dark Horse has the same cooling as the handling package Dark Horse.

So you ought to be fine, unless you have the driving skill and talent of Kimi Antonelli.

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