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Performance measurement: Race track VS Dragy

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Any person who has tuned their vehicle wants to see and feel performance. 

 

There are 3 basic ways to do it:

 

1. Go to NHRA race track 

2. Buy a Vbox

3. Buy Dragy 

 

For this comparison I am using the $150 Dragy from www.godragy.com and comparing it to Island Dragway NJ NHRA certified system. 

 

21 runs were made with no cool down, engine running. Gas used: e35 blend

 

Vehicle: Livernois tuned Lincoln Continental 3.0 (the only Continental probably in the world that races) 

 

Please absorb the data and ask any questions you want, slower times were the result of decreased tire pressure. The goal is to watch difference between Dragy and track and not me ripping my hair out thinking how I went from 12.7 to a 12.9...

 

 

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3 basic items to focus on:

 

1. 60ft (quality of your launch) 

2. 1/8 mile (middle performance) 

3. 1/4 mile (this is where your car heats up and rate of acceleration slows down) 

 

The columns are sorted based on the 3 items above plus delta on the 1/4 mile time. Subtle excel column labels show you which is which. 

Edited by 037
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Best run along with car # that wouldn't come off

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Summary: Dragy useless for the 60ft distance, 1/4 mile worst case scenario off by 6.7/100.

 

On average 3/100 off from track time which is more than close enough not to spend the cash and time on track. 

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I should have my Dragy tomorrow.  Not that I think I will get your times but it is nice to see a comparison. 

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Made 10 runs @ 105 octane and pretty mucg convinced race gas is a waste of $ compared to mixing e85. Assuming your fuel pump can take the heat. 

 

Used 93 octane and race-gas additive. About 4-5 gallons in tank + 32oz.

 

30 miles shown left in tank when started and 14 when leaving. 

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That’s the first 110mph that I have seen. That race fuel and tune work. 

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Xtra... Test vehicle is a Continental. There are no Edges hitting 110. Sigh... I left instructions on what to focus on. 

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Yes I see that now my bad.  I do believe that snmjim or Special_K will hit 110 or more very soon in their Monster Edge Sport. It is just a matter of time. 

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19 minutes ago, Xtra said:

Yes I see that now my bad.  I do believe that snmjim or Special_K will hit 110 or more very soon in their Monster Edge Sport. It is just a matter of time. 

I certainly hope so considering how much time and $ is invested in all the first things they are doing with the platform. Hopefully my ethanol and race gas testing will help them focus on a tuning direction that will yield the best results. 

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10 hours ago, 037 said:

Xtra... Test vehicle is a Continental. There are no Edges hitting 110. Sigh... I left instructions on what to focus on. 

 

yet...... only 1mph away and not on race gas yet 😉

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1 hour ago, Special_K said:

 

yet...... only 1mph away and not on race gas yet 😉

I expect nothing less, and a lot more, actually. 

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Went to Atco yesterday for a private (read $150 very expensive) event. Added 26 runs. 

 

Test vehicle: Continental 3.0 with Livernois E30 tune running E40. 

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Ran 4.65 0>60 ,  4435DA @ 88*F .   91gas with 1/3  tank. Not confirmed ...

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Edited by Xtra

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3 hours ago, Xtra said:

Ran 4.65 0>60 ,  4435DA @ 88*F .   91gas with 1/3  tank. Not confirmed ...

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When you are going down hill that doesn't negate the DA penalty. You should run some E30 for that or 105 booster. 

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Not sure but I think it was a 12 ft  drop over 221 ft if I read that correctly . I do have a 93 tune available but that’s a far cry from a race gas tune . No 93 around here anyway . I can get 100 VP but why pay $9 a gal if I don’t have a tune for it. So I run 91 with a 91 tune. ** The 0-60 MPH (1ft ) was 4.29s

Edited by Xtra

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