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[quote=Jules]Mikko,
Maybe Mikko can share his view on these APS65 tyres.
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Ah they’re the same tyres we had for ROK 4&5? In that case understeer is almost a characteristic of the tyres :). Maximum castor, toe-out of ~3mm, front ride height up. My kart didn’t work well with the rear out all the way, worked best after moving it in 1cm – increased overall grip.Round 4 I had a faulty set that came apart in 30 laps so they weren’t much good :0.. Sunday set was much nicer – they were consistent throughout the day, for qual I realised that a new set only comes in after 5+ laps and kept getting faster, so I stayed out for longer than most drivers and I think i qualified quite high up.
Most soft tyres are a few tenths faster on the first laps than they ever will be again, so doing more than 5 laps in qual is a waste of time.
In the long final they did start understeering more towards the end which was mainly because I was pushing a tiny bit too hard and put a bit too much heat in them, but should’ve started with about 1/2 psi lower pressures. It’s really important that you can get the setup spot on with the tyres because if you’re understeering a lot it’ll just make the tyres work even less effectively.
[quote=Nohad]
MORAL of the story : Get your OWN kart and fiddle with it.
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Try this formula:
….Practice, practice, practice + experience gained + own kart (or lease kart, hire purchase also can) + supportive mechanic = very good finish (very likely)as for me…i cant really tune my kart at the early stage of the race for em apexis tire….cuz it was too wet and slippery.but as the track gets dryer…i noticed the understeer worsen…so i told Ah Boon and we discuss about it.So he told me to adjust the stabilizer bar, and it works….during finals, the understeer wasnt as bad as before,hence my timing was better and i was doing about the same pace as jules and feeky. but they were abit faster la..buaya katakan..hahaha
so the mechanic really plays a big role as u can see.this situation is just the tip of the iceberg in karting setup.
Greetings,
To me the overall race was superb…. the lap 10,10,12 or 12, 12,15 is ok with me, but not sure if im fit enuff to run for 15 laps. anyway, my experience with the kart, tire play really important part of my chasis setup and the way i drive. hence we make so much adjustment with the chassis.. what is done.. emm secret lah hahaha. anyway my humble opinion is that if we are running on a hard compound tire, we should not go for the rolling start, its too dangerous. 1st corner is the main killer, what happen there was the enthusiasm of me at the 1st corner. but again there are pro n con about this starting style.I pity most of u guys that rented the kart there. the kart is really no in good condition and machanic support is not there as well. but again that fall in the cost n budget section.
In this condition, hard compound tire, cold weather and slipery track surface play important role in setting up the whole kart thing. from engine, chassis and driving style. mayb im a little faster because of i like to drive in wet… hehehe i like it WET!!! told that to jen.. hahahahaha.
Tires should be at least run for another 5 races. It can last … that long, plus we only do 40 laps per race so not much rubber burned. i use to do about 20 hours of karting on a hard compound. and the tire are still good. if only we can lower down the cost for K1.
Just wondering yeah guys, what about the K2 if i use my chassis with 100cc engine. can that be arrange? i can use the hard compound tire again… let c if i still have my yamaha 100cc engine in the store.??
Tarmizi is a good driver, but he need more experience in guarding his racing line and overtaking manuver
Don’t Just DRive IT, fEEL it!!!
[quote=feekey]
Tarmizi is a good driver, but he need more experience in guarding his racing line and overtaking manuverDon’t Just DRive IT, fEEL it!!![/quote]
Ha tarmizi kan dah kena taruk kena dgn sifu…
biasa la..young man memang selalu kena hantam 1..listen to the advice la…then only we can get better…hhahaha
peace out.
[quote=feekey]Greetings,
anyway my humble opinion is that if we are running on a hard compound tire, we should not go for the rolling start, its too dangerous. 1st corner is the main killer, what happen there was the enthusiasm of me at the 1st corner. but again there are pro n con about this starting style.
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Pro would be that other than some shifter kart categories a rolling start is the only way every kart series anywhere starts. Care to explain why you feel it’s more dangerous than a standing start? Usually a rolling start is considered as the safer option. Also why does the hard compound make it more dangerous than when using a soft compound? Just curious ’cause I can’t really see the reasoning.As kart engines aren’t designed to go good from 0 you’d see massive differences on how karts get off the grid on a standing start.
for K1 on hard compounds – rolling starts are preferred. i think feekey’s concerns are in relation to the high top speed arriving at the first turn & on cold hard tyres (coupled with the red mist of some drivers… he he he).
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http://www.thefazz.com/meI cannot understand too and we will never do standing starts on 125….PERIOD. Foul plugs will be 50% reason all will be stranded.
Actually the 1st corner after the start on the 1st lap is taken slower than norm so I dunno why this is dangerous. Controlled agression is called for and I expect some bumping here as well, all done at slower speed so it’s ok – so that’s part of the accepted game.
Of course spinners are not welcomed….he he he
Mikko – would u agree on above?
[quote=Jules]I cannot understand too and we will never do standing starts on 125….PERIOD. Foul plugs will be 50% reason all will be stranded.
Actually the 1st corner after the start on the 1st lap is taken slower than norm so I dunno why this is dangerous. Controlled agression is called for and I expect some bumping here as well, all done at slower speed so it’s ok – so that’s part of the accepted game.
Of course spinners are not welcomed….he he he
[/quote] …agreed, I think everyone was controlled at the first corner…except that spinner dude…
hard or soft compound doesnt matter actually…if ure on hard compound,just got to break earlier thats all…no doubt about the speed entering the first corner…
i think grid start is bad for karts because some drivers would hold down the break while getting the power on..this will burn the clutch….just like i see in k3 80cc last time when we had grid start,some of the comer clutch were smoking….and it is much safer to have every kart rolling and ready for the start rather than having a kart with a problem and stuck on the grid during the start. true?[quote=Tarmizi]biasa la..young man memang selalu kena hantam 1..listen to the advice la…then only we can get better…hhahaha
peace out.[/quote]
Betul ! Betul!……hehehe[quote=saa73][quote=Jules]
……Of course spinners are not welcomed….he he he
[/quote] …agreed, I think everyone was controlled at the first corner…except that spinner dude…
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….eerrr, more like everyone was controlled hensem on that day….perhaps a wee bit over eh?Guys,
Where are all the other drivers with their reviews? esp those hiring ones? YY? Ashraff? Pelumba Haram?
Since I was on rental kart as well – there was little set up I could do since I first saw the yellow CRG kart sat morning. It was more like hoping nothing falls off, engine dun cough and die, checking the brakes, safety aspects, mount the weights ( darn ), transponder and jumping onboard…..even tyres pressures I did not bother myself…TSK TSK TSK. I also realised my kart had no on board starter.
During course of race, the brakes were “playing up” and also I notice my water pump belts were breaking and going to snap…I saw this while on dummy grid for race 2 and if it did, would have seized the engine. So my exit from Heat 2 from a disconnected earth wire to the engine while in the lead was a blessing actually….
All in all – I think my slight advantage of some experience helped saved the day ( except for the underweight by 0.5kg thingy….silly me ) and made that an enjoyable day for me.
If I rolled up a proper race kart, perhaps I could have enjoyed it more but again it was for fun and I wanted to experience it like a full fare paying rental driver…..
Yes – your own mechanics would be helpful on the set-up and checks but only if they are bothered to adjust and adjust like Fiki’s. CK’s ones would be stressed to cater for all of their rentals drivers unless u kautim them….
cheers.
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