Track & Drag tips for newbies

[UpNcOmiNg!]

What is your sidewall size? 30? You will need a higher pressure because you'll have a harder side wall. So 2.4-2.6 should be about right on the rear. MAYBE 2.2. MAYBE.

thanks man! :thumbs: appreciate the compliment

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Semi's you can run quite low pressure. And if you want them to really turn on, they need heat in them. Normal tyres, not so much.

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Please correct me if I'm wrong gentlemen, as I said, I broke my track virginity at ODI this weekend past. So I am here to learn.

 

[dvst8]

I also think my tire pressure was too high though!

Also seen quite a few guys playing with tyre pressures. Would also be interesting to see what works well.

Tyre pressure plays a huge part in good traction off the line.

On Semi's I go as low as 1.2 bar, I know guys that go as low as 0.9 bar.

I ran 2.5 bar in my semis. They are 265/35 though. And i did not warm them up at all.

I think that's way too high. At the most I would go 1.8 bar. Always warm up semi's. and launch at a higher rpm. You want a slingshot effect out the blocks.

:thumbs:

 

[bmsportzn135i]

Maybe next time ill drop the pressure and spend a bit of time smoking them...
I was trying the potenza RE11S. 235/40/18.

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I just figured that, after driving 120 odd kms to get to the drags they would be warm enough!

 

[dvst8]

Maybe next time ill drop the pressure and spend a bit of time smoking them...
I was trying the potenza RE11S. 235/40/18.

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I just figured that, after driving 120 odd kms to get to the drags they would be warm enough!

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Warm up semi's, I never saw the point of warming up road tires. Road tyres you launch lower and feather the throttle to maintain traction.

:thumbs:

 

[UpNcOmiNg!]

:+1:

 

[bmsportzn135i]

Schweet, ill try that next time!

 

[UpNcOmiNg!]

Now everyone is going to beat me even worse than what they did on Sunday

 

[bmsportzn135i]

Dont stress, im 600km away from you!

 

[UpNcOmiNg!]

Ha! Ha!
We'll run into each other one day. And on that day......be prepared

 

[4PipeR]

Definitely need to drop the pressure ...

Tyres at 2.6 bar ... just kept spinning even at 2000 rpm ...

Tyres at 2 bar ... spun a bit and then got this surge forward ...

 

[UpNcOmiNg!]

Definitely need to drop the pressure ...

Tyres at 2.6 bar ... just kept spinning even at 2000 rpm ...

Tyres at 2 bar ... spun a bit and then got this surge forward ...and chowed a C63 UGLY!!!!!

fixed

 

[4PipeR]

Definitely need to drop the pressure ...

Tyres at 2.6 bar ... just kept spinning even at 2000 rpm ...

Tyres at 2 bar ... spun a bit and then got this surge forward ...and chowed a C63 UGLY!!!!!

fixed

:rollsmile::rollsmile::rollsmile:

I thought they put trackbite and stuff on the track ? My tyres grip way better on the road ...

 

[UpNcOmiNg!]

The only bite they have at ODI is OVERbite. And that's just the owners. :roflol:

 

[dvst8]

Definitely need to drop the pressure ...

Tyres at 2.6 bar ... just kept spinning even at 2000 rpm ...

Tyres at 2 bar ... spun a bit and then got this surge forward ...and chowed a C63 UGLY!!!!!

fixed

:rollsmile::rollsmile::rollsmile:

I thought they put trackbite and stuff on the track ? My tyres grip way better on the road ...

Grip is always better on the road vs an unprepared track. Friday nights at Tarlton is a nightmare.

 

[Andy1GP]

I also think my tire pressure was too high though!

Also seen quite a few guys playing with tyre pressures. Would also be interesting to see what works well.

Tyre pressure plays a huge part in good traction off the line.

On Semi's I go as low as 1.2 bar, I know guys that go as low as 0.9 bar.

This is interesting. I arrived with my semis at 2.2 bar. Deflated them there to 2.0.

Found that I was battling with traction all day, until toward the end of the day I did some static burnouts and that improved my off the line pull more and more. Pity they weren't recording times after 2pm. The track official told me to go as low as 1.3 bar but I still needed to get home after that.

The warm up is understated. My first little burn out on water did nothing.

Only when I kept it for like 10s and started making smoke did it really start gripping beter. I feel so sorry for the car, but this is what seems to work. Thanks for confirming :thumbs:

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Oh and another thing, I was told that you get drag semi's and track semi's? Is this just myth talk? If not then where do the RE11's fall in?

 

[SP33DYV]

The RE11-s is a circuit semi slick.


Sent on the run from my iPhone using Tapatalk 2

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You need a set of Hoosier's.


Sent on the run from my iPhone using Tapatalk 2

 

[sajjoo]

awesome thread always learning well up guys:bravo:

 

[andrewbuch]

The other thing is that with run flats you can't go too low on tyre pressure due to the tyre construction. I wouldn't go lower than 2.2 bar on rft's. on normal tyres maybe between 1,6 and 1,8 bar depending on the tyre.

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This was at ODI,what is this time sheet you speak of!? :roflol:

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What effect would thois have on normal tires at the end of the 1KM run where your are doing over 200KM/h ??

 

[Fat Tom]

i prefer to rev my car to 7000 and drop the clutch.....

works for me.....

 

[msm]

What effect would thois have on normal tires at the end of the 1KM run where your are doing over 200KM/h ??

Interesting point Andrew - some of the very low pressures used to launch mean the tyres are still running those pressures at higher speeds on the other end. In my limited knowledge on this, the opposite would now hold true - the lower pressures would mean more rolling resistance and hold you back on top end.

I guess it would make sense running "average" pressure on the 1KM and only dropping it substantially for the 1/4 mile, to minimise times.

Some of the more experienced guys can comment further on my assumptions.