Go Back  RX7Club.com - Mazda RX7 Forum > Tech and Performance > Race Car Tech
Reload this Page >

Took my FD to Willow spring Street this monday.and Did pretty good result

Race Car Tech Discuss anything related to road racing and auto X.

Took my FD to Willow spring Street this monday.and Did pretty good result

Old 02-21-08, 11:25 PM
  #1  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Took my FD to Willow spring Street this monday.and Did pretty good result

1:25.8.!! with passanger( I usually dont really take it hard when I carry passanger).

This should be fastest FD ever run in Street of willow.

Did not find a best gear and line for this track yet. I basically use the gear selection and line from my Lotus 7. That car I did 1:25.1....

Incase you guys are wondering. Sport compact car recenly have two car run head to head in Street of willow. check out that issue for detail. I think my lap time can come even closer if I can dial the chssic right. I might need stiffer spring at back





click the pic to watch the Video

I was filming my friend's E36M3 at first 2 laps. he run about 1:28.xx
My best lap when I Chase A Nissan S15 sec . My FD should be pretty easy to get it down to 1:24.xx if they are not traffic infront
or watch the youtube
http://www.youtube.com/watch?v=2D6GgjMT7m0
Attached Thumbnails Took my FD to Willow spring Street this monday.and Did pretty good result-fd3s1.25.8.jpg   Took my FD to Willow spring Street this monday.and Did pretty good result-fdvslotus_split.jpg  

Last edited by diyman25; 02-21-08 at 11:36 PM.
diyman25 is offline  
Old 02-22-08, 02:38 AM
  #2  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Sec part of video from session.

http://www.youtube.com/watch?v=ocmrbIIbTfw
diyman25 is offline  
Old 02-22-08, 08:41 AM
  #3  
Mr. Links
15 Year Member
iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,592
Likes: 0
Received 5 Likes on 5 Posts
Good stuff! That's making me sad since I have snow and ice all around me right now.
Mahjik is offline  
Old 02-22-08, 09:48 AM
  #4  
Racing Spirit
5 Year Member
iTrader: (2)
 
kwerks's Avatar
 
Join Date: Jun 2007
Location: NNJ
Posts: 557
Likes: 0
Received 0 Likes on 0 Posts
Very nice!

What are you running for spring rate and tires?
kwerks is offline  
Old 02-22-08, 11:30 AM
  #5  
****** of disaster
10 Year Member
iTrader: (1)
 
thetech's Avatar
 
Join Date: Aug 2001
Location: Santa Monica, CA
Posts: 1,115
Likes: 0
Received 0 Likes on 0 Posts
Nice run. Looked like you had a decent amount of oversteer on corner exits though!
thetech is offline  
Old 02-22-08, 03:09 PM
  #6  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Originally Posted by kwerks View Post
Very nice!

What are you running for spring rate and tires?

Some Quick Machine Spec
1993 MAZDA RX-7 Best lap time 1:25.8
Full inter
HP:350WHP 10psi
Suspension: Apexi N1 coilover. Custom made off set pillow ball bushing. 3 peace sway bar Front.
Brake:Porsche Big Red Brake at front.R4 PADs. HAWK blue at rear
DriveTrain:KAZZ LSD.4.3 final drive
Aerodyamnic:Real RE Amemiya AD-GT fenders and side steap. with front and rear diffuser. GT2 Spoiler

Wheels/Tire:BBS RGR 18x9.5 with 275/35/18 Nitto NT01

I build this car Fronm Ground up by my self. This is my first time Tracking my FD at this track and I did not track her for almost 3 yearrs. so take it semi hard only. but still get pretty good result I want it
J
For a reference Mine's 600HPover GTR did a 1:21.x Drive by Tsuchiya Keichi san(Drift king). so I should be happy about my home build machine !!

I think if I do take my RX-7 out again. I will change Rear spring rate from 16KG to 18 KG. to help me rotate the car at corner exit.

If you guys watch it closely. Is pretty hard for me to rotate the car at slow speed. this will incl the Turn 2. and Ski pad
almost lift the Inside wheel. at Corner exit







Some of other I took
http://www.trackhq.com/forums/photop...hp/photo/12093

Last edited by diyman25; 02-22-08 at 03:16 PM.
diyman25 is offline  
Old 02-22-08, 06:44 PM
  #7  
Former FC enthusiast
10 Year Member
iTrader: (2)
 
Join Date: Dec 2004
Location: Northern VA
Posts: 2,839
Likes: 0
Received 0 Likes on 0 Posts
Great video, I love this picture!
KhanArtisT is offline  
Old 02-22-08, 10:21 PM
  #8  
Racing Spirit
5 Year Member
iTrader: (2)
 
kwerks's Avatar
 
Join Date: Jun 2007
Location: NNJ
Posts: 557
Likes: 0
Received 0 Likes on 0 Posts
Thats a wild spring rate! But w/e works...

Car looks great!

Was the Mines GTR on R.comps too? regardless your lap time is pretty good.
kwerks is offline  
Old 02-22-08, 10:41 PM
  #9  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Originally Posted by kwerks View Post
Thats a wild spring rate! But w/e works...

Car looks great!

Was the Mines GTR on R.comps too? regardless your lap time is pretty good.
YEs they are running with R.comps also.

As the spring rate. before I upgrade all bushing to pillow ball. It does feel too bumpy due to the blinding on the stock rubber bushing. but with this pillow ball bushing set up. it feel pretty comfortable compare to before. but a bit noisy....

The Valving on the Apexi N1 is good. but it is not perfect yet. I am Strugle to want to change any set up on my FD.... cause I dont really want to track this car.. TOO $$$$ money to keep runing unless I get a sponser . and I already get tons of good pic this is one of reason I bring her out. cause I am short on the Auction shoot!!!!

PS for any one want to Track their FD install A baffle plate in their oil pan or Accsump. cause on my Stack 8130 I can see the Oil psi warming light went on in bling a sec ( or less) in some of tide corner !!!!!!!

Attached Thumbnails Took my FD to Willow spring Street this monday.and Did pretty good result-_mg_6467.jpg  
diyman25 is offline  
Old 02-23-08, 06:05 PM
  #10  
Senior Member
10 Year Member
 
Join Date: Aug 2003
Location: canada
Posts: 651
Likes: 0
Received 0 Likes on 0 Posts
What % does your Kazz LSD lock at?
eoph is offline  
Old 02-23-08, 06:42 PM
  #11  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Originally Posted by eoph View Post
What % does your Kazz LSD lock at?

MM Like i said this is my Street car, so I did not order any thing special. this shoul be stock KAZZ set up
I also driving my friend daily drive FD(falken 615) for few laps , help him find the line and braking point..... I did a 1:31.xx ? consider this is faster then most of Stock EVO and STI I am pretty happy with result (will post data log system)

his car have stock Torsen... dam that is pretty scary when you are on the limit. the momtemnt the insider looose traction . the car feel like slide on the ice. This momtemnet hardly notice able on Clutch type or Mazda Speed Torsen.....
and the Apexi Street suspension......... is barely enought for Track drving
[

Last edited by diyman25; 02-23-08 at 06:50 PM.
diyman25 is offline  
Old 02-23-08, 06:47 PM
  #12  
Senior Member
10 Year Member
 
Join Date: Aug 2003
Location: canada
Posts: 651
Likes: 0
Received 0 Likes on 0 Posts
I was wondering cause I've read the Kazz comes stock with a very high % lock, which could also be the problem to your understeer?
eoph is offline  
Old 02-23-08, 06:55 PM
  #13  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Originally Posted by eoph View Post
I was wondering cause I've read the Kazz comes stock with a very high % lock, which could also be the problem to your understeer?
MM it might. but when you see the pic when I next to GTR... you see my front is much higher then rear . that might explain one thing. in tide corner I might lift my front wheel, and as logic think. 3 wheels wont corner faster then 4. so if I do put stiff spring at back.. it might help me rotate.. or I should lower my front ride hight however my car is a street car. or revalving the shocks. but over all I think spring should be the one is easiest
Attached Thumbnails Took my FD to Willow spring Street this monday.and Did pretty good result-_mg_6790.jpg  

Last edited by diyman25; 02-23-08 at 07:07 PM.
diyman25 is offline  
Old 02-23-08, 07:17 PM
  #14  
Rotary Enthusiast
iTrader: (2)
 
Derek King's Avatar
 
Join Date: Nov 2006
Location: fort wayne, in
Posts: 998
Likes: 0
Received 0 Likes on 0 Posts
very impressive. such a nice place to drive
Derek King is offline  
Old 02-23-08, 07:29 PM
  #15  
Junior Member
5 Year Member
 
RX7_Infini's Avatar
 
Join Date: Jan 2008
Location: Montreal, Canada
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
I'd really like to know what is the brand of your hood, it looks quite awesome.
RX7_Infini is offline  
Old 02-24-08, 12:20 AM
  #16  
CPS Motorsport
5 Year Member
iTrader: (5)
 
tigermack's Avatar
 
Join Date: Jun 2006
Location: Fremont, CA
Posts: 1,114
Received 0 Likes on 0 Posts
Your car looks amazing... you're using your car in good use!

Do you have higher resolution of this pic?
tigermack is offline  
Old 02-24-08, 11:45 AM
  #17  
Senior Member
10 Year Member
 
Join Date: Aug 2003
Location: canada
Posts: 651
Likes: 0
Received 0 Likes on 0 Posts
I think its easier to stiffen with a bigger rear sway bar?

How are those front canards? Do they actually give any noticeable downforce?
eoph is offline  
Old 02-24-08, 10:11 PM
  #18  
rebreaking things
5 Year Member
 
CMonakar's Avatar
 
Join Date: Apr 2006
Location: Manhattan
Posts: 866
Likes: 0
Received 0 Likes on 0 Posts
Very nice! Re. the oil level issue, how far are you filling it up?
CMonakar is offline  
Old 02-25-08, 01:12 PM
  #19  
FD / LSX
iTrader: (2)
 
Join Date: Jun 2004
Location: wawayanda, NY
Posts: 1,359
Likes: 0
Received 0 Likes on 0 Posts
sweet ride.
what system do you use to record the data acquisition and feed into the cameras?
where did you get the caliper brackets to bolt up the porsche calipers?

i had KAAZ on stock setting 100% lockup. on corner exit, it would understeer greatly because both wheels are turning at same time with same force.
Take it out and adjust to 33% and it'll fix that.
2MCHPWR is offline  
Old 02-25-08, 01:18 PM
  #20  
Former FC enthusiast
10 Year Member
iTrader: (2)
 
Join Date: Dec 2004
Location: Northern VA
Posts: 2,839
Likes: 0
Received 0 Likes on 0 Posts
Btw the fourth pic you posted made it on the back of Grassroots Motorsports' latest issue as an advertisement for nittos
KhanArtisT is offline  
Old 02-25-08, 05:09 PM
  #21  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
Your car looks amazing... you're using your car in good use!

Do you have higher resolution of this pic?
Thank you. this is how sports car should be use !!!. not siting in car show
sorry higher resolution is for privite use.....



Originally Posted by eoph View Post
I think its easier to stiffen with a bigger rear sway bar?

How are those front canards? Do they actually give any noticeable downforce?
Already have R/B sway bar at rear. I dont really like feeeling of big Sway bar..... as front Canard. Once over 70 mile per hour. you will feel the car get suck down font and rear. but below that... that really notice able.

Very nice! Re. the oil level issue, how far are you filling it up?
I consume 1/2 Q-almsot 1Q per session. 20 min per session. I am consider install aftermarket oil pan. could be easier.

sweet ride.
what system do you use to record the data acquisition and feed into the cameras?
where did you get the caliper brackets to bolt up the porsche calipers?

i had KAAZ on stock setting 100% lockup. on corner exit, it would understeer greatly because both wheels are turning at same time with same force.
Take it out and adjust to 33% and it'll fix that.
I use Vbox Mini. you can check out on their web site www.Vboxusa.com it can measure Drag racing or Solo2 too , the performance box is best bang for the money I design the brake calipers bracket by my self.

Btw the fourth pic you posted made it on the back of Grassroots Motorsports' latest issue as an advertisement for nittos
are you talking about this one. not the same pic

diyman25 is offline  
Old 02-25-08, 06:06 PM
  #22  
FD / LSX
iTrader: (2)
 
Join Date: Jun 2004
Location: wawayanda, NY
Posts: 1,359
Likes: 0
Received 0 Likes on 0 Posts
can you make me a set of those brackets?
2MCHPWR is offline  
Old 02-27-08, 03:13 AM
  #23  
RE for life
Thread Starter
 
diyman25's Avatar
 
Join Date: May 2002
Location: sca
Posts: 1,180
Likes: 0
Received 18 Likes on 15 Posts
The data file of me driving my Friend's Boost up FD.

255 Falken 615

Stock twin.

Apexi "Street" coilover

1.31.6. in only 5 laps

Pretty good for a Daily driver... Even with AC and Radio




Attached Thumbnails Took my FD to Willow spring Street this monday.and Did pretty good result-fdvsfd.jpg   Took my FD to Willow spring Street this monday.and Did pretty good result-streetcw.jpg  
diyman25 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
zensokuracer001
SE RX-7 Forum
6
10-02-15 10:27 AM
PhillyFC
General Rotary Tech Support
9
08-21-15 06:36 PM
Wolf_
Single Turbo RX-7's
3
08-11-15 04:23 PM


Thread Tools
Search this Thread
Quick Reply: Took my FD to Willow spring Street this monday.and Did pretty good result


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: