IS300 1/4 Mile - Page 2 - Lexus IS Forum
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post #16 of 18 (permalink) Old 04-05-2016, 09:17 PM
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Quote:
Originally Posted by Pholicious View Post
Those are really cool graphs your right about the 1/4 miles its hard to estimate that because of the variables but the mph one looks pretty accurate! My car last year around 560whp went 126mph for comparison
Thanks, like I say, I tweaked something a few years ago until it started to make sense for more typical street setup and most of us that won't get a killer launch.

Out of curiosity, after that, I went through a few pages on the 1/4mile sticky and found quite a few examples that were close as far as ET and MPH.

A couple things I noticed after reading some times on there... we all need to look to Parish8 for slick advice/launch tips. low ET given the MPH for an IS (V8 guys do have some good secrets). That and Yojimbo is an anomaly on the hp curve ( squeaking out a few more ponies on track day than dyno day I suspect... awesome mph)

The base data for the chart might be an easier format to read - see below if anyones interested

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post #17 of 18 (permalink) Old 04-09-2016, 03:16 PM
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Originally Posted by isthisme View Post
That is a pretty decent run. What tires were you running and do you know what your 60 foot time was?
I was running some worn out M/T ET streets on Rx7 rims. 255/50/16.

Keep in mind I use NO launch control or antilag off the line. My car isn't set up for it yet.

I don't know my 60' time off hand. I'll have to look for my time slip. Here's the youtube vid though.

https://www.youtube.com/watch?v=uIkDUr41EnE

It's got the heart of a "Silver Monster".

410whp on a mustang dyno @ Big3 in OH tuned by, Me.
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post #18 of 18 (permalink) Old 06-14-2016, 09:46 PM
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So I took a few runs at Pittsburgh Raceway Park now known as Keystone Raceway Park in New Alexandria, PA Last Saturday night. This was the first I've had my car to the track this summer. Still on the same setup as last year:

M/T ET streets on Rx7 wheel 255/50/16's that are pretty worn. Boost controller was set at 13psi and peaked at 17psi. Again I don't use antilag or launch control off the line.

My first pass of the night I ran a 12.51 at 115 mph.
My last pass of the night I ran a 12.33 at 115 mph. I'll post my slips when I get home from work. I didn't lose these ones like i did before.

12.33 Is now my personal best. I believe my 60' was a 1.8
c1L and Pholicious like this.

It's got the heart of a "Silver Monster".

410whp on a mustang dyno @ Big3 in OH tuned by, Me.
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