Jump to content
SAU Community

Recommended Posts

Indeed, there are still some v710 new I think, but most are now v70a.

they are among the quicker tyres, especially on a lighter car. they were very popular when they were the IPRA control tyre about 10 years ago before they moved to the super expensive yokos. they performed better when buffed but I guess you don't want to bother.

one thing I found with v70A which may also be true in v710, high tyre pressures gave the best performance under the gtr. when I say high, I mean 42-44 hot which is outrageous

take them if the price is right

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6332061
Share on other sites

Clinton has a set of these for the Mazda and they make it handle so much better than an old car like that is entitled to. The biggest issue he had was finding the right tyre pressure to match the light weight of the car as they seem to be pressure sensitive.

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6332332
Share on other sites

Both V710 and V70A are current tyres from memory.

I have not run these but Mark has run these on the S13 with very good success. They do like higher temps compared to most semis, 36-38psi (although these are not generally considered a semi, not a cams approved semi anyway). Mark estimated an improvement of 1.5-2 sec's a lap at EC and probably half that at Wakefield as compared to a similar sized V70A. Better braking, traction and cornering - which is expected when you look at the tread pattern. Longevity was also very good as he campaigned a set for almost 7 rounds! Other competitors say they are equivalent to an A050 medium or soft compound. For the price I don't think you can go wrong.

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6332377
Share on other sites

price has a lot to do with it as the AO50's or Hankooks are 2000 to 2500 vs these which are 1100. I tried to run these in the SAU Nats without much luck and you will have to run as a slick tyre in supersprints.

Different subject with CASM but i think they need to look at the rules as there is a smaller difference between a semi slick and slick tyre now.

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6332842
Share on other sites

with AASA - superTT and MX5 classes its run what you brought, Im up against blokes on slicks and semi's so yeah, these would be good!

for 219 a corner I think i'll give them a shot, although wont be running them till July at the earliest.

If I can go half a second quicker (vs r888) at wakie i'll be happy, that'll take me well into the mid to high 1.12's (shut up you sub 1.10 people! i have 75rwkw!) and would actually be competitive in superTT in a 10 lapper

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6333162
Share on other sites

V710's are awesome. Best bang for buck and at just over $1000 even better value.

DO IT!

You won't regret it. I actually got 9 supersprint events out of 1 set. Only on the 9th event did the lap times drop off.

They still have life in them, just not as fast anymore.

On your light MX5 they will transform the car and you may get more life out of them.

Also against full slicks, they heat up quicker and you go faster sooner. Good for 5 laps but they can over heat if punished for longer.

Just remember they are designed as a autocross/sprint tyre.

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6333338
Share on other sites

A mate uses them on his S14 track car, 300-350rwkw or so - said they take a little more pressure hot than the O50 to perform well, reckons they are as good if not faster than the O50.

Then factor in the money side of it & they are good value when you considering the price of the others is almost double in some cases. You'd certainly think you could get .5 of a sec off going to them from R888s

Down here it's hit & miss if they will let you out with them in the wet, no idea what it'll be like for you guys up there as it seems to vary a bit between states/organisers. Be fairly certain if it was wet and at a CAMS event, no chance haha.

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6333634
Share on other sites

Brother has been using the v70A on the PRB Clubman for quite a few years now and very happy with them setting some great records 1:38 at the creek and 1:02 at Wakfeild. Winter time at Wakfeild Park a lighter car eg: clubmans and Lotus Elise can run the soft compounds if the budget can afford to have a spare set.

Jason Wright used the V710's on his WRX at one stage and dont think he went quicker that the V70A i would look at them for a MX5

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6333765
Share on other sites

hmm..race formats are 6 laps 1st race, 8 laps race 2 and race is a ten lapper.

food for thought! thanks lads!

and yes, a wet track is something id have to consider as I dont have spare rims to have other semi slicks on. doh

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6333839
Share on other sites

On the MX5 I reckon you would be able to do 10 quick laps with the V710's.

I was worried about running the V710 on a wet track also, but luckily last year I didn't get a wet event all year.

You could alway bolt on a set of street tyres if it rains.

Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6336212
Share on other sites

they're not road legal, just like all the other 2 groove "cheater slicks" from Hoosier and Hankook.

I bought my Kumho slicks when they were on special on FSport. They were a few years old. I suspect all their specials are older stock they want to move.

My "cheap" set of slicks cost me a front gaurd, front bar and a wheel repair and only completed 2 sprint before the blowouts started. They turned out to be the most expensive set of tyres I'd ever owned.

I had 2 blowouts and a delamination and have seen the exact same thing happen to others using Kumho semis and slicks. It doesn't happen to everyone who uses them, but I don't recommend Kumhos to anyone. Well, apart from the KU36 which copped a heap of abuse from my heavyweight Supra, but I wouldn't touch their semis or slicks ever again. Spend a bit more and get something that doesn't have the blowout question mark hanging over its head. Its not alot of fun when a tyre blows out as you turn in to a corner fully committed to it!

Edited by hrd-hr30
Link to comment
https://www.sau.com.au/forums/topic/398635-kumho-v710/#findComment-6337833
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • My thinking is that if the O2 sensor is shot then your entire above described experience is pure placebo.
    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
×
×
  • Create New...