RageRacerM's '15 IS350 F-Sport RWD Titan Build
 

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2015 IS350 F-Sport RWD

Baseline stats:
0-60: 5.65 sec
0-60 (1 foot rollout): 5.43 sec
1/4 mile: 13.86 sec @ 98.14 mph, 1/8 mile: 8.97 sec @ 79.94 mph, 60 foot: 2.14sec

Near Future Plans:
- SA2020 Helmet
- LCA Bushings - Figs

Current Modifications

Interior:
- Rexing V1P 3rd Gen 2-Channel 1080p Dash Cam - Very happy with this dash cam. Has the ability to record in 4k, but that would involve disabling the rear camera. 1080p forward + 1080p rear is the setting I usually leave it at.

- Scan Gauge II OBD Scanner/Monitor - Have had this thing for years. Able to monitor transmission temps, voltage, record statistics, and read codes.

Aero:
- Stillen Lip - Does it actually do anything? Unlikely. At the same time, no other front lip out there aside form the Skipper lip has caught my eye. All for simplicity, which is apparently difficult to come by these days.

Exhaust:
- JoeZ Axleback - Love this axleback. Takes awhile to warm up, but when its warm, it sure sounds great. Considering catback options for the future.

Brakes:
- Tom's Performer Pads - Rated to handle temps up to ~600 C. After a few miles of driving, it is safe to say that these barely dust in comparison to the OEM Textar pads. Will follow-up in the future as the pads get mated to the rotors. Thanks Josh at Meraki Autoworks!
- Motul 600 - Good stuff.

Wheels and Tires:
- Stock Staggered F-Sport set on Continental ExtremeContact DWS06 - Favorite All-Season Tires to date, and I've been through quite a few.

- Titan7 TS-5's 18x8.5 +35 and 18x9.5 +40 on Yokohama Advan Apex V601s 235/40r18 and 265/35r18. Big thanks to Doug at Discount Tire for the great deal on the tires, and big thanks to C.Y. at Evasive Motorsports for the wheels!

-Titan Race Nuts Coldforged Steel by Motorsports Hardware

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Apologies for the slow posts. Its gonna be like this for awhile. Busy with life at the moment. But here are some pics from some time back. First 3is as far as I know to fit these Titans.

Stock front weight: 28.0 lbs - 18x8.0
Titan7 front weight: 18.3 lbs - 18x8.5

Stock rear weight: 28.2 lbs - 18x8.5
Titan7 rear weight: 18.9 lbs - 18x9.5

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Im a sucker for 5-spoke designs
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Perfect fit. Enough room between the caliper and upper control arm.

New Titan Race Nuts - Cold Forged Steel

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Nice wheel choice! I've been looking for something similar... Y-spoke design goes perfect on the IS.

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Acceleration and handling have drastically improved with this. Difficult to describe the sensation. Looking forward to the day I go to a HPDE. Hopefully sooner than later.

First IS I seen with those titan7 ts5. Im currently debating whether I should get these or go cheaper and get some flow form wheels. I have a 2IS350 but im sure fitments are going to be pretty similar to each other. Seeing this is making me lean to these forged wheels with the same specs and color too!

Time for Titan7s titanium lug nuts? :D

-Josh

Haha, not sure if I'm ready for that kind of jewelry yet. I'll let you know when I am. Thanks Josh

nice wheels. Massive weight savings per corner. i've always wondered what a 3IS would be like with light wheels. I bet your gas mileage improved, no? Did you net any weight savings with the tires as well?

also why go all season vs. summer tires? noise?

also light wheels tend to bend easy, so be extra careful.

Your 1/4 mile time is 2 tenths faster than any I've seen. I think it comes down to those lightweight rims. The rotating mass weight savings is really working for you. Any chance you can test with the stock rims as well?

MPG has improved when I drive around town. Obviously thats gonna also depend on my behaving, but yeah. With stock wheels my MPG suffered and I would struggle to get anything above 20. Now Im able to hit 21mpg.

Also, I still have my stock set of wheels. I'm currently putting things together for when I start HPDE and autocross this fall. Just waiting for the SA2020 helmets to come out.

I did take tire weight into consideration, but price won me over. Compared to the Continentals, the front Yokohamas are 1 lb heavier, and the rears are 2 lbs heavier. And the yokohamas are 280TW summer tires.

Edit: Add on

With the stiffer tires and wheels, I feel so much more from the road. I know a good number of people say that the Sport+ is kind of a gimmick in making the suspension stiffer, but everything is amplified with the Titan7s and Yokohamas. Eco/normal feels noticeably plush relative to the stiff Sport+ now. Every passenger I've had has verbally told me my car is too stiff. Honestly, I don't think I could handle any stiffer myself. Its surprising how much tires and wheels can change the ride. I'll see how I do on the track before I touch any suspension pieces. I appreciate the versatility of the AVS much more with this upgrade.

That quarter mile time is with stock wheels. Only had the JoeZ axleback equipped for that run. And to be fair, I had multiple attempts before I was able to get that time. At least I learned how to launch my car!

In that case.. any chance you are going back with the lighter rims?

Absolutely. Just taking care of life priorities first. Also, I did just pick up a Milwaukee Impact Wrench Kit that should be coming in this Wednesday. Will be picking up a Floor Jack too eventually.

Everything is coming together, slowly but surely.

https://cimg4.ibsrv.net/gimg/www.clu...7c6d981448.jpg
Wheel swaps, brake jobs, and other maintenance tasks just got a lot easier. Wish I bought this sooner!