How much does 60' effect ET??
08-25-2013, 05:03 PM
#1
2nd Gear Member
Thread Starter
Join Date: Feb 2013
Location: Canada - Alberta
Posts: 188
How much does 60' effect ET??
I've search and have come across oh I dunno countless arguments on how the 60' effects your ET.
I have read anywhere from for every 0.01 you drop your 60' you will drop your ET to for every 0.01 you drop your 60' you will drop 0.03 on your ET... Then I have read it's different for FI vs NA and Street vs DR/Slicks.. I've even read that altitude effects it and manual vs auto also have different rules to it's effect.
Is there a typical rule of thumb for how dropping your 60' will drop your ET
Example:
2013 Mustang GT 6spd
Average DA is 3200-3400ft
Average 60' 2.104 (best) to 2.114
Stock Pirelli A/S 245/45/19
I have read anywhere from for every 0.01 you drop your 60' you will drop your ET to for every 0.01 you drop your 60' you will drop 0.03 on your ET... Then I have read it's different for FI vs NA and Street vs DR/Slicks.. I've even read that altitude effects it and manual vs auto also have different rules to it's effect.
Is there a typical rule of thumb for how dropping your 60' will drop your ET
Example:
2013 Mustang GT 6spd
Average DA is 3200-3400ft
Average 60' 2.104 (best) to 2.114
Stock Pirelli A/S 245/45/19
08-25-2013, 05:16 PM
#4
6th Gear Member
Join Date: Feb 2007
Location: North Carolina
Posts: 11,302
I've checked multiple runs on my car and compared 60' to ET. It comes out to 1.75 tenths per one tenth off the 60' like clockwork. I think its safe to assume a 1.5 to 2 tenth drop in ET for every tenth off the 60. Drag ETs and 60s go hand in hand.
08-25-2013, 06:40 PM
#5
Retired Mod
Join Date: Jan 2007
Location: Long Island, NY
Posts: 7,658
QFT, power being the biggest factor.
08-26-2013, 12:36 PM
#7
Mish-ogynist
Join Date: Nov 2007
Location: Helena, MT
Posts: 3,780
in my 2007 and 2012 automatics the 60ft time differences directly matched changes in ET. but we are talking about 2.0 vs 2.2 I believe was my worst.. I can't remember what I got on my 60ft last time I went out.. (I need a torque converter)
With the power you are putting down you really need some Drag radials. I saw a huge difference with my street tires vs my M&H drag radials. it was spin city with the stock all season tires.
With the power you are putting down you really need some Drag radials. I saw a huge difference with my street tires vs my M&H drag radials. it was spin city with the stock all season tires.
08-26-2013, 02:25 PM
#8
2010 Blue Ball Award Recipient
Join Date: Dec 2004
Location: Eskimo Village, Indiana *No Igloo*
Posts: 7,907
I prefer to look at it like this:
60' is everything.
After your car is effectively already 'going' meaning has traction, everything to the end of the track is simply shifting hard and fast *or if an auto, hanging on for the ride*.
The launch is the biggest variable in a run.
Launch great, get a great ET...launch like crap and run a crap time.
60' is everything.
After your car is effectively already 'going' meaning has traction, everything to the end of the track is simply shifting hard and fast *or if an auto, hanging on for the ride*.
The launch is the biggest variable in a run.
Launch great, get a great ET...launch like crap and run a crap time.
08-26-2013, 06:27 PM
#9
4th Gear Member
Join Date: Feb 2012
Location: North Carolina
Posts: 1,087
I have always heard for every tenth off the 60ft it will result in a tenth-and-a-half reduction in ET. Always rang pretty true for my car.
Regardless, 60ft is usually where the race is won or lost.
Regardless, 60ft is usually where the race is won or lost.
