Soooooo, by the looks of it, MB Models are moving to the Jetko EOS tyre as a control tyre for their wednesday nights racing… any one used them? any opinions on this change? Pros/Cons?
On face of it sounds ok, cheaper control tyre (£15 a set instead of the £20 a set would have been paying on Schumies) and rumours Ive heard is that lifespan is ok… guess time will tell?
I’ve had a look at the jetko tyres and they look like cactus rear copies and cut stagger front copies. For me personally I didn’t rate the Schumacher cut stagger when I tried them and got better results with other tyres. I think jumping from mb with jetko to sora or manor etc will involve quite a bit of set up changes. Noting that can’t be done but nobody I know in the summer likes to change there car from outdoor in indoor just to race mid week and feel this will be the same. So for me I will just stick to racing the club nights and not the jetko championship ones
I guess im in a slightly different position, with a couple 2wd chassis kicking around. If it is the case that there are a lotta changes then i could just run one of them… eg an excuse to keep the Mugen lol
There is a few plus points of a control tyre tho. Everyone uses the same tyre, only allowed 1 set a meeting. Will stop the people winning by throwing new tyres every heat oe new tyres for finals. Which we all know alot do that there
@Ellis Looks like I will be coming to MB for firtst round of the Jetko… What were your findings with the tyre? what changes were you making to compensate?
So I did the following,
Went up 1° on rear toe from 1.5° to 2.5° (probably should have gone to 3°).
Dropped a spring weight front and rear.
Layed the shocks down one on the rear tower.
Went shorter on wheelbase.
Dropped rear roll around from 1.4mm to 1.3mm.
Turn turbo increase rate down
Dropped diff from 30k 4gear to 10k 4gear
Removed front rollbar
Glued front tyres down and put glue on side walls.
Did not trim any spikes of the rear tyres.
Setup still needs work but it was manageable.
Next time out I will probably shorten the rear camber link and go down on the rear rollbar or remove it.
Feedback I’ve heard is they are okay. Very much copies and not as good (all a bit shit in my view). They should have added their own ideas rather than just copy and be cheaper.
I do agree with Marc that a control tire is good to level the playing field.