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Discussion Starter #1
so my buddy is at irwindale right now and there is a ISF there he said it ran a 8.51.
 

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that's pretty crappy for an IS-F. I also managed a 8.51 with my stock IS350! I wonder if it was bad conditions because the IS-F is definitely faster than and IS350.
 

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hehe that was me! lol...my first time doing a drag thing...my reaction time was bad...like 1.310....

R/T 1.310
60' 2.047
330 5.623
1/8 8.512
MPH 85.28

I was using manual mode with sport on and traction/vsc off. ;) A newbie at this stuff...lol...the Vega I was going against broke down...but he had a fast R/T .535 lol :p
 

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hehe that was me! lol...my first time doing a drag thing...my reaction time was bad...like 1.310....

R/T 1.310
60' 2.047
330 5.623
1/8 8.512
MPH 85.28

I was using manual mode with sport on and traction/vsc off. ;) A newbie at this stuff...lol...the Mustang I was going against broke down...but he had a fast R/T .535 lol :p
What was your 1/4 mile time. Try it without the manual mode next time, and believe it or not, leave the ECT/PWR mode OFF (not even sure if the IS-F has such a mode or not) You'll get the hang of it, it's actually a blast when you do!
 

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i dunno California Speedway in fontana?...about 1 hr drive from the San Gabriel Valley region...:rolleyes:
 

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Discussion Starter #10
did you only make one run?
 

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hehe that was me! lol...my first time doing a drag thing...my reaction time was bad...like 1.310....

R/T 1.310
60' 2.047
330 5.623
1/8 8.512
MPH 85.28

I was using manual mode with sport on and traction/vsc off. ;) A newbie at this stuff...lol...the Mustang I was going against broke down...but he had a fast R/T .535 lol :p
rt = will not affect your time...............your 60' will;) so improve your 60' and you'll see an improvement on your time.:cool:
 

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sorry i am a lexus/toyota guy but thats not a mustang its a vega. congrats on the ISF
yea...i know...i didn't know what it was until people told me...lol :)
 

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Irwindale is a pretty shitty runway. Usually times are slower than they really are there.
 

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LOL, to figure out 1/4 mile, you just double the 1/8th mole time

^ referring to great PL thread
 

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LOL, to figure out 1/4 mile, you just double the 1/8th mole time

^ referring to great PL thread

ROFL :)

Most likely that would have been around a 13.0 pass, possible a 12.90 depending on how much harder it pulled up top but at 85mph, it has enough to drop more into the 8.0 range and mid 12's if it pulls as hard on top.

Not bad for the first time out.
 

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.net superior m.f.
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there's a lot of sites like this :Ford Mustang: Mustang Tech: Calculators & Decoders: 1: 4 mile to 1: 8 mile ET Conversion

that calc ETs given other data. they don't know aerodynamics, so they do a bad job as you approach 100mph.

a lot can happen in all that gear changing though :).

in fact, i was messing with a difernt 1/4 calculator and it couldn't find that 1/8 mile time given that 60 and 330' performance. as if it's a good 60', but shortly there after, there was a mis-shift or wheel spin.
 

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ROFL :)

Most likely that would have been around a 13.0 pass, possible a 12.90 depending on how much harder it pulled up top but at 85mph, it has enough to drop more into the 8.0 range and mid 12's if it pulls as hard on top.

Not bad for the first time out.
If the 2nd 1/8 is anything like my buddy's 300CSRT8, it would be faster than the first! So I wouldn't just double the time. I'd try to get to a 1/4 mile track! :)
 

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If the 2nd 1/8 is anything like my buddy's 300CSRT8, it would be faster than the first! So I wouldn't just double the time. I'd try to get to a 1/4 mile track! :)
???

What do you mean? I definately didn't double an 8.50 into a 13.0 unless I have found a new formula :)

The best most generally accepted method of converting the 1/8 to the 1/4 will be to multiply the 1/8 mile ET by 1.54. It will get you very close to ballpark every time.

The only times is drastically off is a large turbo car with traction issues. They normally run faster 1/4 mile times than the 1/8 mile would allow on a linear well setup car. Also, the 60ft time plays a big roll in overall performance more than anything. .3 off that 60 putting it in the 1.70 range which is decent for a street car would knock that 8.50 down to an 8.0-8.1 at a slightly lower mph.
 
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