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XKLABA
XKLABA

Me at the Bathurst Esses hill climb the weekend just gone With a time of 28.28 giving me the class win and 0.17 off the class record on my first time up there

SILKGOD
SILKGOD

Phillip Island 16-06-2013 After a wet start in the morning the day got better. Still very cold, had a lot of trouble getting heat into the tyres. Couple of issues spun the rear yoke in the tail shaft

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hrd-hr30 Grand Master

hrd-hr30

Posted
Posted

Mine supposedly has 270bhp at the wheels. Jacky's S15 290bhp at the wheels. My horses sound lazy compared to his. lol But his times make my head hurt. I've been to EC so I know how fast 1:45 is! And that's on Federal RSRs! unbelieveable

hrd-hr30 Grand Master

hrd-hr30

Posted
Posted
Might be worthwhile doing a wheel/tyre swap for a session? He's punting his this around very quickly! Callum's is pretty close to yours on "spec" isn't it Harry?

he's 4 stud, so we can't swap rubber. I have been offered me a try before you buy deal though :ermm:

His is also stripped out, some basic aero - wing and undertray/splitter. It went a sec faster from them alone. Lower diff ratio (like I had in the old car) and a mech diff. I have none of those things.

Roy Grand Master

Roy

Posted
Posted

I ran one day in a Scirroco at Nurburgring with some Bridgestone street tyre, then the next day on those Federal 595 RS-R, they are a very good tyre. I dont think they give away much at all to an RE55, which appear to be showing their age compared to the newer A050.

But, the RS-R was an amazing thing...its is a true semi... so that experience combined with the times at EC and Wakefield of the E85 sniffing S15...then they are on par with RE55s in my eyes. At least close enough that it would be interesting to back to back them as the differences are not obvious

hrd-hr30 Grand Master

hrd-hr30

Posted
Posted
I ran one day in a Scirroco at Nurburgring with some Bridgestone street tyre, then the next day on those Federal 595 RS-R, they are a very good tyre. I dont think they give away much at all to an RE55, which appear to be showing their age compared to the newer A050.

But, the RS-R was an amazing thing...its is a true semi... so that experience combined with the times at EC and Wakefield of the E85 sniffing S15...then they are on par with RE55s in my eyes. At least close enough that it would be interesting to back to back them as the differences are not obvious

The new Federal semi FZ-201 in medium compound is about 1.5 sec faster than RS-R's :ermm:

FineLine Grand Master

FineLine

Posted
Posted
I ran one day in a Scirroco at Nurburgring with some Bridgestone street tyre, then the next day on those Federal 595 RS-R, they are a very good tyre. I dont think they give away much at all to an RE55, which appear to be showing their age compared to the newer A050.

But, the RS-R was an amazing thing...its is a true semi... so that experience combined with the times at EC and Wakefield of the E85 sniffing S15...then they are on par with RE55s in my eyes. At least close enough that it would be interesting to back to back them as the differences are not obvious

With a hardness rating of 140 it falls short of some of the true semi's Roy.

It is the best all round (street/track) tyre I have ever used but it is at least 1 & 1/2 seconds slower than the direzza,s I replaced them with.

FineLine Grand Master

FineLine

Posted
Posted
So the new Federal semi is widely available now?

I was enquiring about them a few months back and they were nowhere to be found.

no. 255 x 17 is still the biggest they are importing atm.

They only have a couple or so of sizes available.

Roy Grand Master

Roy

Posted
Posted
With a hardness rating of 140 it falls short of some of the true semi's Roy.

It is the best all round (street/track) tyre I have ever used but it is at least 1 & 1/2 seconds slower than the direzza,s I replaced them with.

140, 50 or 230....dont care. They are a good tyre and only a guide. There is more to grip then a number or how soft they are. They work well. And if you have used them back to back with RE55s and they are 1.5seconds slower then i fair enough. But i would be surprised if that was the case

FineLine Grand Master

FineLine

Posted
Posted
140, 50 or 230....dont care. They are a good tyre and only a guide. There is more to grip then a number or how soft they are. They work well. And if you have used them back to back with RE55s and they are 1.5seconds slower then i fair enough. But i would be surprised if that was the case

Not arguing as to wether they are good or not Roy. A great tyre. My quoted times were actual time differences I ran from one track day to the next.

The rsr's were amazing compared to the street rubber i used prior but the dunlops semi's took grip to a whole nutha level.

badhairdave Proficient

badhairdave

Posted
Posted
140, 50 or 230....dont care. They are a good tyre and only a guide. There is more to grip then a number or how soft they are. They work well. And if you have used them back to back with RE55s and they are 1.5seconds slower then i fair enough. But i would be surprised if that was the case

I almost have, i used to have 595 rs's on the skyline for street tyres and re55's for track. There was a couple of seconds in it around wakefield on the same day. Don't know that there is a significant difference between the old rs and the new rsr.

FineLine Grand Master

FineLine

Posted
Posted
I almost have, i used to have 595 rs's on the skyline for street tyres and re55's for track. There was a couple of seconds in it around wakefield on the same day. Don't know that there is a significant difference between the old rs and the new rsr.

Buger all that I could tell Dave, Maybe a 10th or so at best.

Roy Grand Master

Roy

Posted
Posted (edited)

Have a hard think... the only difference was tyres? If so then I seems i am selling the RE55s short :) That is dramatic and i wouldnt have thought it would be that dramatic. But a back to back is more accurate then my seat of pants! They were the 595RSR, not the 595, or the 595 EVO etc etc (just checking)

http://www.federaltyres.com.au/ss595

Edited by Roy
FineLine Grand Master

FineLine

Posted
Posted
Have a hard think... the only difference was tyres? If so then I seems i am selling the RE55s short :) That is dramatic and i wouldnt have thought it would be that dramatic. But a back to back is more accurate then my seat of pants! They were the 595RSR, not the 595, or the 595 EVO etc etc (just checking)

http://www.federaltyres.com.au/ss595

Definitely the RSR Roy, I have been a big fan of them as a street/track combo tyre for a long time but as a track only tyre they fall short of the dedicated semi's.

Probably the reason why federal are in the process of introducing the new semi as used by callum earlier in this thread.

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