Official IS-F Drag Time/Dyno Time/Performance Thread - Page 46 - ClubLexus - Lexus Forum Discussion


IS F (2008-2014) Discussion topics related to the IS F model

Official IS-F Drag Time/Dyno Time/Performance Thread

Reply
 
 
 
Thread Tools Search this Thread
Old 08-12-17, 11:16 AM   #676
Gymkata
Lexus Test Driver
 
Gymkata's Avatar
 
Join Date: Dec 2009
Location: MD
Posts: 1,033
Thanked 6 Times in 5 Posts
Default Corrected 1/4 mile

Interesting...I plugged the approx DA of +2250 ft for my last 1/4 mile into the calculator on dragtimes.com. [email protected] becomes [email protected] Our cars sure launch slowly, but they build good speed down the stretch.
Gymkata is offline   Reply With Quote
Old 08-14-17, 06:51 AM   #677
Vitveet
Lexus Test Driver
 
Vitveet's Avatar
 
Join Date: Sep 2014
Location: Nc
Posts: 814
Thanks: 0
Thanked 49 Times in 40 Posts
Default

Quote:
Originally Posted by Gymkata View Post
Interesting...I plugged the approx DA of +2250 ft for my last 1/4 mile into the calculator on dragtimes.com. [email protected] becomes [email protected] Our cars sure launch slowly, but they build good speed down the stretch.
Excellent times! Maybe I missed it, but what are your mods?

V.
Vitveet is offline   Reply With Quote
Old 08-14-17, 07:17 PM   #678
Gymkata
Lexus Test Driver
 
Gymkata's Avatar
 
Join Date: Dec 2009
Location: MD
Posts: 1,033
Thanked 6 Times in 5 Posts
Default

Quote:
Originally Posted by Vitveet View Post
Excellent times! Maybe I missed it, but what are your mods?

V.
Thanks, my mods are in my sig.
Gymkata is offline   Reply With Quote
Old 08-14-17, 08:15 PM   #679
Vitveet
Lexus Test Driver
 
Vitveet's Avatar
 
Join Date: Sep 2014
Location: Nc
Posts: 814
Thanks: 0
Thanked 49 Times in 40 Posts
Default

Quote:
Originally Posted by Gymkata View Post
Thanks, my mods are in my sig.
Sorry. I'm on mobile and it does not show sigs on the mobile site. FBO?

V.
Vitveet is offline   Reply With Quote
Old 08-15-17, 10:13 PM   #680
Gymkata
Lexus Test Driver
 
Gymkata's Avatar
 
Join Date: Dec 2009
Location: MD
Posts: 1,033
Thanked 6 Times in 5 Posts
Default

Quote:
Originally Posted by Vitveet View Post
Sorry. I'm on mobile and it does not show sigs on the mobile site. FBO?

V.
2008 Lexus IS F - SGM - OS Giken TCD, RacingBrake 2pc, RR Racing intake box/tune, Sikky headers, Borla exhaust, JoeZ intake pipe, BC Racing coilovers, Swift springs, FIGS bushings, Optima Redtop, 18x9.5 Enkei PF01s with 275/35R18 Potenza RE-71Rs, track weight 3595 lbs w/a full tank
2016 Nissan Titan XD Pro-4X Cummins - DD - Icon stage 3 suspension, 295/70R18 Cooper STT Pro
2013 Porsche Cayenne diesel - a few mods
Gymkata is offline   Reply With Quote
Old 09-10-17, 05:25 PM   #681
512ISF
Driver School Candidate
iTrader: (1)
 
Join Date: Mar 2016
Location: Texas
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
Default FBO ISF 1500da

Made it back out to San Antonio raceway last night. Was hoping for the 12.0-12.3 range. Ended up with 12.5x 4 runs in a row. I was trapping 114-115ish. 2.0 60fts every time. No wheel slippage. And I didn't remove spare.

Should the the car be running a little faster?

Mods:
ppe headers
rr racing tune and intake
joe Z elbow
3 inch catless exhaust with x pipe
512ISF is offline   Reply With Quote
Old 09-11-17, 01:51 PM   #682
BS ISF
Lexus Test Driver
 
BS ISF's Avatar
 
Join Date: Feb 2009
Location: illinois
Posts: 988
Thanked 4 Times in 4 Posts
Default

Check to see what the DA was. Also you need to get your 60' down at least into the high 1.8's to run 12.0's i belive.
BS ISF is offline   Reply With Quote
Old 09-11-17, 02:55 PM   #683
512ISF
Driver School Candidate
iTrader: (1)
 
Join Date: Mar 2016
Location: Texas
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by BS ISF View Post
Check to see what the DA was. Also you need to get your 60' down at least into the high 1.8's to run 12.0's i belive.

DA was 1500
512ISF is offline   Reply With Quote
Old 09-28-17, 07:16 PM   #684
FNSSESPORT
Pole Position
 
Join Date: May 2012
Location: Ontario
Posts: 286
Thanked 7 Times in 6 Posts
Default All show, no go

I would have posted this sooner, but I've been too busy hanging my head in shame due to being an embarrassment to the F community last Friday. My first time on a drag strip - Toronto Motorsports Park (which is actually in Cayuga, don't ask), it was a ton of fun, but I was terrible at it. I WASN'T terrible at spinning my tires for the first 60'. I went up against my buddy's 2011 Mustang GT for the first two runs. He's got a tune, exhaust and 4.10 gearing. After the first run it was apparent that i could stop worrying about winning, and just focus on launching. If you notice my reaction time for the first run, I was spending more time wondering what RPM I should launch at as opposed to watching the tree. My third run was against a stock 2015 STI, some aero and rims, but engine was stock. I ran with stock tire pressure, traction control off, and Sport Mode. I let the car shift all of the runs as I was trying not to overwhelm my brain with too many things the first time out. What surprised me was my second run, I had a better R/T than my buddy, better 60', and he still just reeled me in and passed me. All-in-all I had a ton of fun and I'd definitely do it again. I certainly didn't appreciate how technical it can be getting a proper launch. It was difficult enough for me to have one foot on the brake and one foot on the gas at the same time, just seemed very counterintuitive. It was amazing just seeing all the other cars there as well. There was a late 60's-ish Camaro that ran mid-8's!! I have way more respect for the IS-F guys running 12's! My ego has definitely been checked.

FNSSESPORT is offline   Reply With Quote
Old 09-29-17, 11:18 AM   #685
FFM
Lexus Test Driver
 
FFM's Avatar
 
Join Date: Nov 2014
Location: WA
Posts: 1,056
Thanked 34 Times in 27 Posts
Default

Details on the car? Definitely need to get those 60’ times down. Should be able to cut under a 2.0 with better tires. My Firestone’s were only able to hit a 2.0 but that put me at a high 12, which still isn’t great.

With headers now im expecting worse traction issues that hopefully the top end can comp for. Some drag tires will be on the list for next year.
FFM is offline   Reply With Quote
Old 09-29-17, 11:30 AM   #686
FNSSESPORT
Pole Position
 
Join Date: May 2012
Location: Ontario
Posts: 286
Thanked 7 Times in 6 Posts
Default

Quote:
Originally Posted by FFM View Post
Details on the car? Definitely need to get those 60í times down. Should be able to cut under a 2.0 with better tires. My Firestoneís were only able to hit a 2.0 but that put me at a high 12, which still isnít great.

With headers now im expecting worse traction issues that hopefully the top end can comp for. Some drag tires will be on the list for next year.
Id be more than happy to get in te high 12's! Car has HPS intake, JoeZ exhaust and RRR Tune, Michelin PSS.
Whats your strategy for launch?
FNSSESPORT is offline   Reply With Quote
Old 09-29-17, 11:46 AM   #687
FFM
Lexus Test Driver
 
FFM's Avatar
 
Join Date: Nov 2014
Location: WA
Posts: 1,056
Thanked 34 Times in 27 Posts
Default

I tried them all, which is why my times were all over the place. I should have stuck with one and made slight changes.

The general consensus is; traction and stability control off, SPORT on, manual mode, left foot on brake, release and stab throttle at the same time, shift at limiter.

I tried a number of combos and perfecting that method is ideal. Odd with those tires you weren’t able to get the 60’ down. They should be every bit as sticky as my Firestone’s.

I always do just a quick wheel spin to remove dirt and debris and get a slight amount of heat in them before. A street tire isn’t like a slick though that takes a huge burnout to get warm. You go too much it just gets greasy.
FFM is offline   Reply With Quote
Old 09-29-17, 11:53 AM   #688
FNSSESPORT
Pole Position
 
Join Date: May 2012
Location: Ontario
Posts: 286
Thanked 7 Times in 6 Posts
Default

If the weather here holds out, i might go back tonight and ill definitely try that.
Do you ket any air out of your tires? I just ran stock PSI (36) and went around the water box and didnt do a burnout.
FNSSESPORT is offline   Reply With Quote
Old 09-29-17, 01:12 PM   #689
BS ISF
Lexus Test Driver
 
BS ISF's Avatar
 
Join Date: Feb 2009
Location: illinois
Posts: 988
Thanked 4 Times in 4 Posts
Default

my best was always leaving off idle. drop rear psi to around 28 and do a small burnout to clean the tires off and get a little heat into them.
BS ISF is offline   Reply With Quote
Old 09-29-17, 04:22 PM   #690
FFM
Lexus Test Driver
 
FFM's Avatar
 
Join Date: Nov 2014
Location: WA
Posts: 1,056
Thanked 34 Times in 27 Posts
Default

Yes, drop the pressures like mentioned above. Dialing in the perfect pressure will just take a few consistent runs to gauge.

Also perhaps you are hesitating from stabbing the throttle upon letting the brake go which is tripping the lights early on a roll. Otherwise even on ****ty tires I’d expect better than a 2.5 60’
FFM is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
RC F Dyno Procedures weswork RC F (2015-present) 31 05-26-17 10:02 AM
Can we have a stickied "Official GS-F Drag Time/Dyno Time/Performance Thread" thread? MisterSkiz GS F (2016-present) 1 12-23-16 03:10 PM
Can we have a stickied "Official RC-F Drag Time/Dyno Time/Performance Thread" thread? MisterSkiz RC F (2015-present) 2 12-22-16 07:23 PM
My ISF hit 201.5 MPH (At the Dyno) UniqSC IS F (2008-2014) 8 05-09-16 06:15 AM
My 1st dyno runs...ever BuLLdAwG IS F (2008-2014) 14 01-31-16 11:01 PM


Tags
2005 , 955 , daytona , drag , dragtimes , dyno , guam , is300 , is350 , isf , lexus , rwp , sc400 , stock , times

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -7. The time now is 10:43 AM.


Copyright © 2000-2017 Internet Brands, Inc. All Rights Reserved We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: