Mitsubishi Evo (prepared something.. something)

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agrabau
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Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 9:47 am

I completed the worksheet for car class summary and ended up with no classification.

Can someone spitball for me? I used to be PB before the rules changed. I'm trying to appeal for late entry to Sunday's TT at NHMS

Thanks

Alex
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Re: Mitsubishi Evo (prepared something.. something)

Post by jeffw » Mon Oct 09, 2017 10:57 am

You have more than 109 points, which means you exceed the top of T100. That means you have to run in one of the super classes.

They are power to weight. Do you have a recent dyno sheet? Do you still have a dyno? :-)
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Re: Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 11:18 am

I have a sheet.

447.3/2470

.18hp/lb or 5.59 lbs per hp so it's looking like Super Unlimited?
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Re: Mitsubishi Evo (prepared something.. something)

Post by jeffw » Mon Oct 09, 2017 12:14 pm

Correct!
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Re: Mitsubishi Evo (prepared something.. something)

Post by jeffw » Mon Oct 09, 2017 12:15 pm

Also, I'm sad because my car is the same weight and less than 1/3 the power :-(
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Re: Mitsubishi Evo (prepared something.. something)

Post by jvangelder » Mon Oct 09, 2017 12:20 pm

Is that weight with you in it?

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Re: Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 12:50 pm

That's without me in it
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Re: Mitsubishi Evo (prepared something.. something)

Post by paultg » Mon Oct 09, 2017 1:25 pm

agrabau wrote:
Mon Oct 09, 2017 12:50 pm
That's without me in it
You should use your competition weight (you, fuel, etc) which will lower your power/weight. Probably not enough to go to a lower super class.

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Re: Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 1:32 pm

It's cool I don't really care what class it is as long as no one gets upset about it.
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Re: Mitsubishi Evo (prepared something.. something)

Post by jeffw » Mon Oct 09, 2017 1:47 pm

The scales will be open at NHMS so you can get a 'wet' weight on Saturday.
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Re: Mitsubishi Evo (prepared something.. something)

Post by FredK » Mon Oct 09, 2017 2:55 pm

You can probably class lower than SU if you use Option B:

Option B:
The following formula may be used in lieu of providing actual power figures for a Super class vehicle, regardless of which value is higher (emphasis mine):
Power = Displacement multiplier x Valves/Cylinder Multiplier x RPM Multiplier x Forced Induction Multiplier
● Displacement Multiplier: 80/1 Liter
● Valves/Cylinder Multiplier: 2 valves/cylinder is 0.85, 4 valves/cylinder is 1.0, rotary is 1.0
● RPM Multiplier: ((Max RPM – 6000) / 6000) + 1
● Forced Induction Multiplier: 1.75

What's your max engine speed? I made a number up for an example, 7600 rpm:

2.0L x 80/1 L x 1.0 x (7600 - 6000 / 6000) +1 x 1.75 = 354.7

And say like you weigh 180 and your car is 2470 wet, that's 2650 as you'd exit the track and onto the scales.

That means your weight to power ratio would be 7.47, or Super A.
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Re: Mitsubishi Evo (prepared something.. something)

Post by SandyClam » Mon Oct 09, 2017 3:01 pm

Nobody will protest anything if you promise to shoot fireballs out the back on every upshift!

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Re: Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 3:57 pm

I'm having trouble following that for some reason.

Max RPM 7800
4 valves per cyl
2.3 liter
I do weigh 180 actually. :D
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Re: Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 3:57 pm

Ryan we can arrange for that!
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Re: Mitsubishi Evo (prepared something.. something)

Post by agrabau » Mon Oct 09, 2017 4:02 pm

Fred I'm coming up with 6.33 using the numbers I posted above.
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