Lowering X Any problems?

Try SRF takeoffs....

...Spec Racer Ford.
185/60 fronts.

For a $20K SRF racecar, with few other options
besides tires to be hero driver,
those guys throw away lotta good rubber.
Rarely do they run'em past 75% tread.

Plus it seems the spec tire brand changes
every year or two...rendering new tires instantly obsolete.
Prime opportunity to score new rubber for pennies.
I ran 'em on DSP X for number of years.
One set lasted 2000 miles, most of 'em at PIR,
alot of 'em at Medford track, and some spirited canyon carving.

A-N-T Tire in Portland had lots of 'em several years ago.
Garth or Fred had lower prices than Chris.

RR compound, so getting 'em hot enough
to work on cone courses was sometimes a challenge.
Last 25% of rubber was only good for PIR.
Still better than Stahlflex, CompTA,
or Yoko 001 we used to run in the '70s-early '80s.
Which, as I recall, still gripped enough
for Datsun 1200 to wind up on 2 wheels.
Forgot if it was left 2 or right 2...
 
That's a possibility, I'll call Garth tomorrow and see if the supply is still there, I don't remember seeing any 13" Rcomps while digging through his pile, only slicks. We do have a few cars that run 13's.

As for a Datsun 1200 on 2 wheels, my brother puts his up routinely on street tires, fortunately the street tires loose grip fast as you de-camber them and it naturally sits back down.

The SRF are running a 22X7X13 Goodyear bias A400, never been impressed with Goodyear they always seem to be a couple years behind the curve, but maybe that has changed since I ran them 20 years ago.

olerascal said:
...Spec Racer Ford.
185/60 fronts.

For a $20K SRF racecar, with few other options
besides tires to be hero driver,
those guys throw away lotta good rubber.
Rarely do they run'em past 75% tread.

Plus it seems the spec tire brand changes
every year or two...rendering new tires instantly obsolete.
Prime opportunity to score new rubber for pennies.
I ran 'em on DSP X for number of years.
One set lasted 2000 miles, most of 'em at PIR,
alot of 'em at Medford track, and some spirited canyon carving.

A-N-T Tire in Portland had lots of 'em several years ago.
Garth or Fred had lower prices than Chris.

RR compound, so getting 'em hot enough
to work on cone courses was sometimes a challenge.
Last 25% of rubber was only good for PIR.
Still better than Stahlflex, CompTA,
or Yoko 001 we used to run in the '70s-early '80s.
Which, as I recall, still gripped enough
for Datsun 1200 to wind up on 2 wheels.
Forgot if it was left 2 or right 2...
Click to expand...
 
Nothing wrong with running slicks on the exxe..

Current SRF is running 185/60/13.. I have a friend who races an exxe in HP on used SRF tires.. Budget car and they work fine.

Bernice

bpimm said:
That's a possibility, I'll call Garth tomorrow and see if the supply is still there, I don't remember seeing any 13" Rcomps while digging through his pile, only slicks. We do have a few cars that run 13's.

As for a Datsun 1200 on 2 wheels, my brother puts his up routinely on street tires, fortunately the street tires loose grip fast as you de-camber them and it naturally sits back down.

The SRF are running a 22X7X13 Goodyear bias A400, never been impressed with Goodyear they always seem to be a couple years behind the curve, but maybe that has changed since I ran them 20 years ago.
Click to expand...
 
HI Bernice

Are you sure it,s 185/60? I know a couple of years ago they wear running on Yokohama A048 185/60-13 front 205/60-13 rear but they did change to the Goodyear A400 22x7-13 I just cheeked the SRF web site and it shows the A400.I've been running on A048 SRF tires for three years now they work grate. Steve Hoelscher run my car at an SCCA autox event last year had nothing negative to say about the tires other than he was surprised how high the air pressure had to be ( 38-40 psi ).
 
they have been on the GY since 06.

Where do you guys find 13" wheels?

a quick search of discount tire direct found 3 13's and the widest was 5.5"

in 15" there are 2 dozen or so 6.5 and 7 wide for under $100 ea.

Would need a 6.5 -7" for the 7" tire.

Brian
 
13x7 wheels

on the cheep go with steel wheels Diamond Racing wheels .my buddy has had them before there pretty light for a steel wheel. 80 bucks each.thees wheel are not hub centric but it's not a problem if mounted and torqued down correctly.

http://www.diamondracingwheels.com/ministock.html

or go aluminum Spinwerkes with thees you can get them made to your exact specifications size, width, offset, hub centric,4 on 98 the whole 9 which you will need to know before ordering 200 bucks each.

http://www.spinwerkes.com/

there are a few others like Revolution ,Panasport,Minilite and Campagnolo all off thees can be hard to find in the right size and offset ( back space ) and expensive

I'm going with the Diamond racing wheels (13x7 4inch back space ) for one my budget is super low two I'm not competitive enough ( fast enough ) to weary about the 1-2 pounds of weight steel vs aluminum three like I said my buddy had them they are way nicer then you would think a steel wheel is.
 
Diamonds are a boy's best friend...

...for low buck rims of custom dimensions.
Get black so they don't look like refugees from a utility trailer.

Oopsie! I didn't know SRF changed to GY slicks.
My reference to SFR 185/60 DOT takeoffs is obsolete info.
Obviously current SRF slicks won't fly in DSP.
Kinda too tall at 22" anyway.
If you're still bound to going DSP & DOT,
looks like Hoosier DOT are only choice (I know of).
While not widely available as takeoffs,
they can be found...tho' more expensive due to supply/demand.
Typically only RR compounds since most takeoffs are from RR drivers.
Not ideal, but new AX compound are crazy expensive.

So a few years ago I figured...WTF...wanted more grip,
and Hoosier DOTs aren't street friendly anyway,
and their takeoff costs are about double or more.
Leading me to change to inexpensive 20x7 slicks for short courses...takeoffs from CSR/DSR.
Not as widely used as SRF, but still good quantities available in R35 compound.
Occassionally in R25, but those cost more and die sooner.
Sourced from Lee Graser Tire in TN...good guy.
Everytime I ordered, Lee came back with lower price for more tires.
So I'd order 2 or 3 sets for each season at approx $100 per set.

CSR/DSR are much lighter car than SRF...ie. softer sidewalls.
Gotta stretch 'em over 8" rims to keep 'em from rolling over.
Bumping airpressure for that purpose is like pissing into the wind.
Even 7" rims don't work as well as 8" with 20x7 slicks.
Good news is short 20" tire clears stock fenders
with normal fender lip mods.
Bad news is slicks bump ya to DP.
Worse news is rim width bumps ya to DM.
No big deal...classes & paxes mean nothing to me...TTOD is the only target.
Another option is 20x8 cantilever sidewall, will work on 6" rims.

20x7 slicks on X with barely streetable springs...
sideways-1.jpg


Here with unstreetable springs...
MF07.jpg
 
Actually the GY is a dot tire still ok in DSP, not quite 22 spec reads 21.7" not much different.

No big deal...classes & paxes mean nothing to me...TTOD is the only target.
Click to expand...
Couldn't agree more, unfortunately our club is small enough we have to pax, everybody has their own class...

Besides I own TTOD already and the X isn't going to threaten that.

That Flamingo is hot. that has to be worth 1 Sec. minimum. Where can I get one and is it DSP legal?
 
racerx said:
on the cheep go with steel wheels Diamond Racing wheels .my buddy has had them before there pretty light for a steel wheel. 80 bucks each.thees wheel are not hub centric but it's not a problem if mounted and torqued down correctly.
Click to expand...

at only 13 Lbs that's a winner, I remember looking at diamond years ago and they were 17-18 Lbs. Hopefully that spun wheel comes in black.
 
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