View Full Version : Its time for a weekend at Buttonwillow


MPILOT
07-28-2004, 05:08 AM
http://speedtrialusa.com/index1.html

Speedtrialusa are holding a weekend event at Buttonwillow raceway on the 7th and 8th of August.

Saturday race config. 27, Sunday config. 13.
:jump:

Kevlar
07-28-2004, 08:54 AM
I'm interested to see the results after some hard track lapping...

MPILOT
07-28-2004, 03:12 PM
I'm interested to see the results after some hard track lapping...

The only thing is I ran a config. close to the 13 last time I was at buttonwillow, but that one included the Star Mazda turn. For that the lap record was in the low 2's, about 2:02 with a race car, I was with the stage I with only 100 lb reduction running 2:20's.

Config 13 should be a little faster with the lap record approachig the high 1:50's. Now with the Stage III and more weight dropped, and the BBK, I'm hoping for low 2:00's.

We'll see, I'll take video coverage of the fast ride. :evil2

Kevlar
07-28-2004, 03:51 PM
Keep an eye on your oil and water temperatures for me... I'm very interested in that. What RPM limiter will you be using for the event?

snook...
07-29-2004, 01:48 AM
ButtonWillow Track Lap Records, SCCA club racing.

27 lap records (http://www.calclub.com/html/html2/2004/butwlwtrec27_5_22_04.htm) 13 lap records (http://www.calclub.com/html/html2/2004/butwlwtrec13_3_29_04.htm)

Mpilot, if you truly want to go faster, ditch the pss9's...

MPILOT
07-29-2004, 02:02 AM
Keep an eye on your oil and water temperatures for me... I'm very interested in that. What RPM limiter will you be using for the event?


I will have video coverage of the hot laps on Sunday.

The last time I took my car to Buttonwillow, I was running the Delage Sport Stage I. The oil temp. went up to 230-240 F, and stayed there most of the day.

MPILOT
07-29-2004, 02:04 AM
ButtonWillow Track Lap Records, SCCA club racing.

27 lap records (http://www.calclub.com/html/html2/2004/butwlwtrec27_5_22_04.htm) 13 lap records (http://www.calclub.com/html/html2/2004/butwlwtrec13_3_29_04.htm)

Mpilot, if you truly want to go faster, ditch the pss9's...


Thanks for the link.

My PSS9's are fitted with Eibach springs, 500 F and 525 R.

I have the GC rear stability kit, together with their rear camber arms.

I set my front camber to -2. We'll see how it goes.

Current weight is 3135 lb.

snook...
07-30-2004, 12:54 AM
set the front to -4.0, rear -3.5.....take tire temps...but use a probe pyrometer....not the infrared one that just takes surface temps...

the "guideline", no more than 20 degree, i like to use 16 degrees, but that's just me, there is an acceptable range.....from inside, center, outside....what makes it difficult is that you've got to have someone waiting with the probe, and you've got to come in hot off the track, otherwise, outside temps will cool with that amount of camber.....it takes practice and a trusted buddy, to get the hang of doing it right...

for instance...just an example....180 inside, 160 middle, 140 outside...just an example, tire temps will vary depending on tire size...like i said, i prefer to use 16 degrees, but no more than 20 is a guidline....could go increments of 10 degrees as well....at this point, this is where a stopwatch/laptiming system comes in handy...

i'm at 2990....

MPILOT
07-30-2004, 05:59 AM
set the front to -4.0, rear -3.5.....take tire temps...but use a probe pyrometer....not the infrared one that just takes surface temps...

the "guideline", no more than 20 degree, i like to use 16 degrees, but that's just me, there is an acceptable range.....from inside, center, outside....what makes it difficult is that you've got to have someone waiting with the probe, and you've got to come in hot off the track, otherwise, outside temps will cool with that amount of camber.....it takes practice and a trusted buddy, to get the hang of doing it right...

for instance...just an example....180 inside, 160 middle, 140 outside...just an example, tire temps will vary depending on tire size...like i said, i prefer to use 16 degrees, but no more than 20 is a guidline....could go increments of 10 degrees as well....at this point, this is where a stopwatch/laptiming system comes in handy...

i'm at 2990....

Thanks for the tips. I will have 2 of my close friends at Buttonwillow with me. One of them currently races in F2000 in England, the other guy has won several championships at club racing events and SCCA here in the states. We are all Engineers that love to record data and compare it.

It should be fun. :buttrock

Kevlar
08-02-2004, 08:08 AM
Well... let us know how the weekend went, I'm rather interested.

MPILOT
08-02-2004, 09:25 PM
Buttonwillow event is this coming weekend. The car is being prepped for the track with Brembo BBK and more susp. and lightweight stuff.

I will post oil temp., video and track time. :alright

MPILOT
08-03-2004, 09:14 PM
http://members.roadfly.com/m3delagesportstgiii/DSC00140.JPG

http://members.roadfly.com/m3delagesportstgiii/DSC00141.JPG

http://members.roadfly.com/m3delagesportstgiii/DSC00142.JPG

http://members.roadfly.com/m3delagesportstgiii/DSC00143.JPG

http://members.roadfly.com/m3delagesportstgiii/DSC00144.JPG

http://members.roadfly.com/m3delagesportstgiii/DSC00145.JPG

snook...
08-03-2004, 09:23 PM
Which pads are you running, realize that the stock brembo pads will not be up to track duty....I mean they'll be fine, but understand that they won't like the heat very much...

Brembo puts a street pad on their GT kits....so owners don't complain about squeal...

MPILOT
08-04-2004, 12:34 AM
I run the new blue pads on the street and the orange race pad on the track.

Brembo also gave me their brake fluid and the full floating 2-piece slotted rotors.

badmonkey
08-04-2004, 10:43 AM
The only thing is I ran a config. close to the 13 last time I was at buttonwillow, but that one included the Star Mazda turn. For that the lap record was in the low 2's, about 2:02 with a race car, I was with the stage I with only 100 lb reduction running 2:20's.
:evil2


2:20's? Be prepared to get lapped by Miatas... ;)


,

BLKM3
08-04-2004, 11:54 AM
2:20's? Be prepared to get lapped by Miatas... ;)


,

Haha doubt that.

snook...
08-04-2004, 11:48 PM
Haha doubt that.

don't doubt it too much....

Look at SM track record for course 13

Left side of Page...Car Class SMhttp://www.calclub.com/html/html2/2004/butwlwtrec13_3_29_04.htm

snook...
08-04-2004, 11:52 PM
I run the new blue pads on the street and the orange race pad on the track.

Brembo also gave me their brake fluid and the full floating 2-piece slotted rotors.

throw out that brembo fluid, get some real fluid....castrol srf...

MPILOT
08-05-2004, 07:32 AM
2:20's? Be prepared to get lapped by Miatas... ;)


,


Talk about some fast miata's. I saw this crazy miata at Brainstorm today.

This one was prepped with 8.8:1 CR pistons, a turbo kit and was pushing 320 RWHP, weighing only 2,200 lb.

I dyno'd my car again today, results will be posted here tomorrow.

The car made 341 RWHP at 8,420 RPM and 253 RWTQ at 5,250 RPM with 94 (AKI).

MAB Badgerbimmer
08-05-2004, 09:04 AM
Last year when the PTG boys were at Road America I noticed they didn't seem to be running much negative camber. I spent a good deal of time speaking with the mechanics and they said they were running -2.5 up front and -2.75 in the back. That makes a lot of sense at a high speed track like RA. But the also said they never run more than -3.25 even on technical tracks. I found this surprising.

By the way I run the Cobalt Spec VRs, I've run Porterfields, Pagid Hawks like the Cobalts better then all. I also echo the Castrol SRF, great fluid.

MPILOT
08-05-2004, 04:14 PM
Last year when the PTG boys were at Road America I noticed they didn't seem to be running much negative camber. I spent a good deal of time speaking with the mechanics and they said they were running -2.5 up front and -2.75 in the back. That makes a lot of sense at a high speed track like RA. But the also said they never run more than -3.25 even on technical tracks. I found this surprising.

By the way I run the Cobalt Spec VRs, I've run Porterfields, Pagid Hawks like the Cobalts better then all. I also echo the Castrol SRF, great fluid.


Thanks for the tips, I'm going to install the new G-C rear camber arms now and go do an allignment after that.

I will post my spec here tonight.

Buttonwillow this weekend. :buttrock

snook...
08-05-2004, 05:36 PM
Last year when the PTG boys were at Road America I noticed they didn't seem to be running much negative camber. I spent a good deal of time speaking with the mechanics and they said they were running -2.5 up front and -2.75 in the back. That makes a lot of sense at a high speed track like RA. But the also said they never run more than -3.25 even on technical tracks. I found this surprising.



all depends, they're a lot lighter, full slick rubber, no rubber bushings anywhere.....

camber measurements are based on tire temps and lap times....there is no magic number, however, with a 3000lb plus e46m3, can't really compare the to the ptg cars in that sense...

tire temps and laptimes tell where it needs to be.

MAB Badgerbimmer
08-06-2004, 09:06 AM
True there are variable factors. Keep in mind this was last year when PTG was running in the Speed GT series so spec tires, my pilot sport cups are better then the Toyos they were running. I also have all the rubber out of my suspension, really keeps things solid.

But I agree with your point every track, car and conditionsin which you are running will change the "ideal" set up.

Irrenarzt
08-06-2004, 02:38 PM
Anyone going to Buttonwillow this weekend? If so, post Mpilots laptimes.

badmonkey
08-06-2004, 03:04 PM
http://speedtrialusa.com/index1.html

Speedtrialusa are holding a weekend event at Buttonwillow raceway on the 7th and 8th of August.

Saturday race config. 27, Sunday config. 13.
:jump:


Speedtrial holds the absolute worst events I've ever been to. You couldn't pay
me to attend one of their events again. Good luck Mpilot, keep your eyes up
and aware of the traffic flying off and on track.


,

snook...
08-07-2004, 02:31 AM
True there are variable factors. Keep in mind this was last year when PTG was running in the Speed GT series so spec tires, my pilot sport cups are better then the Toyos they were running. I also have all the rubber out of my suspension, really keeps things solid.

But I agree with your point every track, car and conditionsin which you are running will change the "ideal" set up.


just a little idea of what a ptg car looks like beneath the skin....http://members.roadfly.org/AEsco48/117_1782.JPG http://members.roadfly.org/AEsco48/117_1788.JPG http://members.roadfly.org/AEsco48/118_1808.JPG http://members.roadfly.org/AEsco48/118_1809.JPG http://members.roadfly.org/AEsco48/118_1812.JPG
http://members.roadfly.org/AEsco48/116_1663.JPG http://members.roadfly.org/AEsco48/116_1667.JPG http://members.roadfly.org/AEsco48/116_1676.JPG http://members.roadfly.org/AEsco48/116_1677.JPG

badmonkey
08-07-2004, 11:09 AM
Great pics, Snook...

,

PatrickM3
08-07-2004, 01:26 PM
Mpilot, looks like you have a fast car. But are you a fast driver? ;) I have seen 2002s kicking Vette, M3s arses at Buttonwillow. So don't be dismay if some experienced driver in a RX-7 kicks yours.

MPILOT
08-08-2004, 05:02 PM
My first outing at Buttonwillow 1 and 1/2 years ago, I beat a ZO6 with my stock M3 by 14 sec. on config 14. I also matched my instructor's time of 2:03. I was 13 sec. slower than the fastest car out there on that config. that day, which was a raced out NSX Supercharged with a comp. driver. who holds the record for that config. at 1:50.


Anyways this event was postponed due to several reasons:

1 - This club doesn't offer transponder rentals, so we don't have a way to record our laps.

2 - More work at Kinetechnik, forcing only one of the crew to make the event rather than the planned 4 drivers with 4 cars.

3 - Big Willow is up in 2 weeks for the whole weekend and there we can record our lap times for you guys to compare.

snook...
08-08-2004, 05:15 PM
My first outing at Buttonwillow 1 and 1/2 years ago, I beat a ZO6 with my stock M3 by 14 sec. on config 14. I also matched my instructor's time of 2:03. I was 13 sec. slower than the fastest car out there on that config. that day, which was a raced out NSX Supercharged with a comp. driver. who holds the record for that config. at 1:50.


Anyways this event was postponed due to several reasons:

1 - This club doesn't offer transponder rentals, so we don't have a way to record our laps.

2 - More work at Kinetechnik, forcing only one of the crew to make the event rather than the planned 4 drivers with 4 cars.

3 - Big Willow is up in 2 weeks for the whole weekend and there we can record our lap times for you guys to compare.

you club race? what's this "i beat a z06" bullshite? you weren't wheel to wheel racing, you have no idea of the z06 owners experience....so the "i beat" claim is completely iditotic...

i give the benefit of doubt most of the time...but when i hear the "i beat" comment from a DE, and then "Instructor" in the Same sentence....it begins to make me feel that all other claims made hereafter are bullshite....which include HP claims....

Crap is getting thick bro.....its probably best to just shutup now....do some testing, get your stuff together, and then post the findings.....

MPILOT
08-08-2004, 05:54 PM
I do club race. Do you want to go? We have several M3's lined up to go against any M3.

m3ltw98
08-08-2004, 06:17 PM
He was asking if you club race which I doubt you do since you dont have all the required decals and number plates on your car.

snook...
08-08-2004, 08:19 PM
I do club race. Do you want to go? We have several M3's lined up to go against any M3.

bmwcca clubracing foolio.....cracking me up here....

you made a comment about "beating a z06".....that was at a driver education event.....you have no idea of the experience of the Z06 driver......that was my point....

and comments like..."I do Race".....in addition to other claims, start to make me remove some of the benefit of doubt that i've been giving....

payce back at ya.

Spencer
08-08-2004, 09:44 PM
you club race? what's this "i beat a z06" bullshite? you weren't wheel to wheel racing, you have no idea of the z06 owners experience....so the "i beat" claim is completely iditotic...

i give the benefit of doubt most of the time...but when i hear the "i beat" comment from a DE, and then "Instructor" in the Same sentence....it begins to make me feel that all other claims made hereafter are bullshite....which include HP claims....

Crap is getting thick bro.....its probably best to just shutup now....do some testing, get your stuff together, and then post the findings.....

:lol

I'd have to agree here. Open lapping (ie, DE events) and wheel 2 wheel racing are 2 different things.

Not to mention, a Z06 will slaughter an E46 M3 with equal levels of preparation and comparable drivers.

MPILOT
08-09-2004, 03:42 AM
He was asking if you club race which I doubt you do since you dont have all the required decals and number plates on your car.


I have been doing time trials at different events for some time now.

Now I'm preparing the car for some events. We'll keep you updated. First race event might be as early as end of August.

The roll cage is on order.

PatrickM3
08-09-2004, 10:53 AM
Mpilot,

Please don't take any of my comments as offensive or intrusive. Just a different perspective on the matter.

Preparing your car to be a race car does not make you a race driver. Period. You need to clear this thought and build up your driving skills first. Again, not by preparing the car, but preparing yourself as a driver. Which is why I asked if you're a fast driver. I have to mention that being consistent is a key here as well.

Attending time-trials at events do not prepare you to race. Time-trialing and racing are two different things. Those attending time trials are not necessary competitive, qualified, experienced race car drivers.You need a qualified race car driver to coach you on racing. There are a lot of racing schools around the country and they are nothing like the time trial events you attended.

That aside, if you really club races, without googling for answers, what does softening the rear do the car? Also how does adjusting the front camber affect the car in pro and con?