Mech33

Are you guys replacing all 4 tires every time?

orthojoe

Yes. It's not worth the hassle to squeeze one extra day out of 2 tires. Plus you have to deal with tires that are likely heat cycled out and mismatched grip

clex2

Dave (IIRC), it was great meeting you and hearing about your awesome journey through all the racetracks. It was a fun day. Your Track Decals collection is what we all dream about, but you live it. Props.

F1CrazyDriver

That's pretty cool. I thought i had a lot w/ 13 under my belt.

MaxLTV

Interesting. I'm getting 5 out of fronts and 10 out of rears on MPSC2, but with last 2-3 days rears being not very pleasant. If I were not too cheap to change all 4, it would be same wear for Pirelli and MPSC2

Manifold

That seems to fit my experience. I'm on my first set of rears (quite worn), and second set of fronts (fairly fresh). Based on tread wear, life of rear SC2 looks like it can be about double the fronts, but grip of the rears seemed to really fall off during my most recent track day with the car (at Thunderbolt, about 3 hours on track), making the car feel loose and slow. Odd thing is that, at the immediately prior event at Watkins Glen, front and rear grip both felt good, and the car felt balanced. Different tracks could be part of the reason, but I'm suspecting that grip of the rears starts to fall off significantly at a certain point, despite the amount of tread looking decent. Next event is almost 6 hours away, and will be about 6 hours of track time, so I think I'm going to bite the bullet financially and replace the rears before that event, even though I too can be quite cheap and hate to throw away tires (and brake pads) which look like they still have some life!

inactiveuser7616

Hi Orthojoe- awesome thread! I've got a few questions in regards to your Cantrell rollbar.

Did the roll bar come with any instructions?

How easily did the interior come out?

How long did it take to install? Could it be done in a single day you think?

bigkraig

It comes with instructions, they are very good. If you read them and follow in detail, you will not have any problems.

Interior comes out very easily.

I did mine in a day with a friend, he had experience installing rollbars. If you have the right tools, its definitely something you can DIY but it is a lot of effort.

ipse dixit

Not sure it's exactly DIY.

More like DIYWF ... as in Do-It-Yourself-With-Friends

inactiveuser7616

Thanks bigkraig! That's good to know. I'm mechanically inclined and have worked on many cars over the years. Though, it's not my profession, so I need to take my time with stuff like this.
Now I just need to be patient for my allocation to show up.

SmokinGTS

Phil
Don't be afraid to tackle this project as it just takes a little time to do it right. If you have questions the answers are here on the forum. Cantrell can fill in the voids and is more than willing to help. I have had no problems with my install.

inactiveuser7616

Thanks SmokinGTS. Appreciate the vote of confidence. Definitely not afraid. Just doing as much research and prep that I can so the project goes as smooth as possible.
Appreciate the offer for assistance.
This forum seems to be much more 'mature' than others I've been on. Very nice as it's more my 'speed'.

orthojoe

Thanks for answering phil's questions, guys. I have nothing to add.

bigkraig

Absolutely, no way one person can fit the bar in

Manifold

Wound up replacing the rear tires, looking forward to trying the car with both front and rear grip this weekend at a new track.

Here's my hypothesis regarding what's happening with the rear tires (could be totally wrong): the RWS and e-diff are reducing the rear tire wear, enabling the rear tires to seemingly outlast the front tires, but putting all that power down is causing the tires to heat cycle out before the tread is worn. By contrast, the front tires aren't getting hammered by the power, and thus less issue with heat cycling, but are working hard to find grip when cornering, especially during corner entry, and thus still have decent grip by the time the tread is worn.