Uhh Rigggght

Either way now I am shopping for 17x9 +45 ish offsets for getting out there next year.... Was eyeballing the Konig hypergrams, I've had Enkei RPFs in the past, but would like something more durable (not that the Enkei's aren't.... but) I don't want the lightest which typically the RPF1's are known to be best for weight.

 

Welp now I gotta find time to go pick the car up. I have updated my album if you guys wanna see the numbers. I had a local engine shop prep the K motor. Within my album are the power figures.

 

Got the car picked up from ASM, I was checking the forums and couldn't find a good thread on what rubber to put on my Weds. 17x9+49 ... thoughts on what to throw on them?

 

copy paste from another post where I responded to the same exact ask.

What are you doing with the car? HPDE Lapping? Timeattack? w2w racing? Sanctioned events with rules to follow? Trailer/tow to event or drive to/from event?

Yoko A052 - for time attack and outright grip for 1 or 2 laps - it's only good for 2 hot laps, after which it drops in lap times (but still maintains good feedback, response, and break away characteristics). It's really tailored for Time Attack and Auto-cross. I'd only get this tire if you were looking to immediately set a fast hot lap in the session and come into the pits early - ending the session with your fast banker lap.

Falken RT660 - not as fast as the A052, but better session consistency. Will still get greasy and drop off in the session. Think of it as a slightly better RE71R

Kuhmo v730 - not as fast as the RT660, but consistent for an entire session. Great wear characteristics. Takes about 1.5 laps to get heat into them. Think of them as a much improved Nitto NT-01.

Bridgestone RE71RS - supposedly, the new tire to get. Improved on all of the RE71R characteristics, including lapping consistency for an entire session (i haven't run them yet. My next tire that i'll be picking up this summer).

Hankook RS4 - Old technology tire. Out classed by all of the previous aforementioned tires above, except that they wear like iron and last forever. They have great lapping consistency, and are easy to recover driving characteristics if you over drive them. I'd rather get the v730 if I was looking for longevity and consistency.

That's the short list of 200 TW worth mentioning.

In the 100 TW category, I don't think there's anything worth running anymore. They've all been out classed by the latest generation 200 TW tires. Everything in this category needs an update. Nitto NT-01, Toyo RA-1, Toyo R888, Toyo R888R. They all under perform the Kuhmo v730.


I didn't bother mentioning with anything below 100TW like Hoosier A6, R7, Toyo RR, etc. etc - I don't have experience with any of those tires.

 

Have tow, HPDE initial getting back into the swing of relearning the car with the new mods. Looking towards the future either NASA, eyes to GridLife Time Attack or further.
@Bullwings for the listing. Was going to do tab/roll the car first. Was looking to go with 255 square but didn't know which aspect either 40 or 45 to wrap the weds with.

Really liking the nod to the v730 have had kumho's in the past and was very happy with them.

 

for 17" wheels - tires are 255/40r17.

 

Hoosiers or Toyo RR are worth 2 seconds at Sebring. Your car seat/dash will make creaking noises you have never heard for cornering G’s.

they also break away more unpredictably and if you overheat them fall way off until you bring them back to temps. So they certainly are magic when optimally operated but 200 wear are so damn forgiving.

 

Ive ran the rt660, re71rs and v730. The 660 and re71rs are way better in terms of overall grip vs the v730. 660s will get greasy late in a session. re71rs has fantastic grip, it falls off a bit into the session, but not as bad as the 660. Grip for grip - I cant really comment as i put the re71s on after the 660s were heat cycled out. They are close, Id have to run them back to back the same day to give a proper opinion on it.

The v730 has a stiffer sidewall so turn in will be sharp. It has quite a bit less grip than the 660 and re71, but it never really got greasy on me during a session.