[Spaceme1117]

Originally Posted by R1LEY

It’s been a while, but I finally got the car tuned with the rotofab and E85! Gained about 34 horsepower on E55 (Baseline numbers were down a little because of bad gas according to my tuner) but overall I’m happy with how it feels and you can’t beat 2.64 per gallon vs 3.90 for premium. Also after some long consideration I finally decided to go to the square wheel and tire setup with anthracite Apex EC7’s in 19x10.5 et22 with 305/30/19 Kumho PS91’s (cheap daily driver tires). So far I love how they feel but I really had to grind the strut even with a 5mm spacer and Silverado studs to get enough clearance with the track alignment.

Pic of the dyno graph:
Attachment 1074873
Pic of the wheels:
Attachment 1074874

Well, that graph looks very familiar. Grifftuned, LLC?

If so, he did my 2017 SS just a few weeks ago on 93 and then E85(E67 actual).

Nice car!

[R1LEY]

Great eye!! Did you have similar numbers? He thought mine seemed a little low but we also think it may have been bad gas so I’m just curious. Either way he did a great job and I’m very happy with the car.

[m6-lt1]

Hey R1LEY! Nice car. Question for you. I too have 45k miles on my car. I’ve been itching to do my first track day but I’m a bit nervous too because I feel like my miles are higher than other people who track their LT1 powered cars. Have you tracked your car recently I.E with > 40k miles on it? I’d feel more comfortable doing it if I found someone else that’s tracked their car with the mileage mine is at. I did extend my warranty but not sure if gm’s track warranty carries over to their extended warranty.

[R1LEY]

Yeah I actually took it to the track back in the beginning of may of this year and the car still felt great! It was a cold wet day but still a lot of fun! Side note, powerstop track day pads produce a lot of dust which you can see if you look close enough(all the “dirt” on the side of the car)
I’ve only tracked the car 3 times and I'm still on the original rotors with almost 52k miles and 3 track days. Knock on wood, but the car drives and handles exactly the same as the day I got it and I plan on tracking it more next year too. I would have no problem taking it at 45k miles as long as you inspect everything and keep up with fluid changes.

[m6-lt1]

Originally Posted by R1LEY

Yeah I actually took it to the track back in the beginning of may of this year and the car still felt great! It was a cold wet day but still a lot of fun! Side note, powerstop track day pads produce a lot of dust which you can see if you look close enough(all the “dirt” on the side of the car)
Attachment 1075016Attachment 1075017I’ve only tracked the car 3 times and I'm still on the original rotors with almost 52k miles and 3 track days. Knock on wood, but the car drives and handles exactly the same as the day I got it and I plan on tracking it more next year too. I would have no problem taking it at 45k miles as long as you inspect everything and keep up with fluid changes.

Thanks for letting me know. Yep I’ve recently done every fluid change (trans, diff, coolant) except for brakes because I’m going to switch to dot4 a few weeks before my first track day. Will of course do the switch to 0w/5w-40 as well.