Build Threads Building a motor? Post the progress here.

Scooter - A Miata Journey and ITB Noises

Thread Tools
 
Search this Thread
 
Old 07-16-2024 | 03:38 PM
  #141  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

Originally Posted by Roda
Pretty interesting... I was definitely getting a pretty consistent fluctuation in oil pressure just after the transition from braking to acceleration. Screen shot from below is from AutoX on Sunday. Definitely going to be looking into this more...

can you plot the vtec activation along with the others? It’s not uncommon to see dip when vtec kicks in (yo).
Old 07-16-2024 | 03:44 PM
  #142  
Roda's Avatar
Senior Member
 
Joined: Sep 2011
Posts: 1,313
Total Cats: 333
From: Sierra Vista, AZ
Default

Originally Posted by redursidae
can you plot the vtec activation along with the others? It’s not uncommon to see dip when vtec kicks in (yo).
Good point... I'll take a look.
Old 07-16-2024 | 05:52 PM
  #143  
Gee Emm's Avatar
Senior Member
 
Joined: Jul 2014
Posts: 1,259
Total Cats: 197
From: Canberra, sort of
Default


Old 07-19-2024 | 11:43 AM
  #144  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

Originally Posted by Gee Emm
is this some sort of oil accumulator? I guess it would kind of work like a capacitor?
Old 07-19-2024 | 12:59 PM
  #145  
sixshooter's Avatar
Moderator
iTrader: (12)
 
Joined: Nov 2008
Posts: 21,089
Total Cats: 3,139
From: Tampa, Florida
Default

Accusump
Old 07-19-2024 | 06:33 PM
  #146  
Gee Emm's Avatar
Senior Member
 
Joined: Jul 2014
Posts: 1,259
Total Cats: 197
From: Canberra, sort of
Default

Originally Posted by redursidae
is this some sort of oil accumulator? I guess it would kind of work like a capacitor?
Yes and yes. Accusump as Six says, there are others.

Installed after low pressure warning light flashed consistently at one particular corner of one track, never happened again afterwards.

Installed with a tap/valve, isolated on cool-down lap to store oil under pressure theoretically if you open it prior to a cold start you will get some oil flowing to bearings, but the value comes when pressure drops: the air bladder forces oil back into the system when oil pressure drops below the pressure held in the bladder, it is then refilled when oil pressure returns to nominal. Ideally plumbed after the oil filter, as that acts as a one-way valve.
Old 07-24-2024 | 06:19 PM
  #147  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

Very cool. Thank you for sharing that bit of information, @Gee Emm and @sixshooter . I'll keep it in mind if the pressure drops become concerning.

I haven't done any work on the car since the last track day. Only checked the oil which was at the full mark (YAY), looked over the logs to ensure the tune is good, and watched more GLTC videos. I drove the car to work a couple of times this week which was fun, and signed up for my first autocross this weekend. I don't think it'll be very competitive in autox, and have no idea what class they'll put me in because of the swap and ITBs. Probably CSP or XB? We shall see!
Old 07-24-2024 | 07:07 PM
  #148  
Fireindc's Avatar
Elite Member
iTrader: (13)
 
Joined: Dec 2006
Posts: 6,819
Total Cats: 659
From: Taos, New mexico
Default

Originally Posted by redursidae
Very cool. Thank you for sharing that bit of information, @Gee Emm and @sixshooter . I'll keep it in mind if the pressure drops become concerning.

I haven't done any work on the car since the last track day. Only checked the oil which was at the full mark (YAY), looked over the logs to ensure the tune is good, and watched more GLTC videos. I drove the car to work a couple of times this week which was fun, and signed up for my first autocross this weekend. I don't think it'll be very competitive in autox, and have no idea what class they'll put me in because of the swap and ITBs. Probably CSP or XB? We shall see!
Where's the Auto-x? I've been driving mine to work as well, good fun, I forget how awesome it is when I don't drive it for weeks at a time. Ha!
Old 07-24-2024 | 07:26 PM
  #149  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

Originally Posted by Fireindc
Where's the Auto-x? I've been driving mine to work as well, good fun, I forget how awesome it is when I don't drive it for weeks at a time. Ha!
The Auto-x is in Farmington. Shoot, I should have told you about it. My bad dude. And yeah, your NA is sick!
Old 07-24-2024 | 08:50 PM
  #150  
Fireindc's Avatar
Elite Member
iTrader: (13)
 
Joined: Dec 2006
Posts: 6,819
Total Cats: 659
From: Taos, New mexico
Default

Originally Posted by redursidae
The Auto-x is in Farmington. Shoot, I should have told you about it. My bad dude. And yeah, your NA is sick!
No worries! I'm actually gonna be out of town. You'll have to let me know how it goes, maybe ill come next time!
Old 07-25-2024 | 10:56 AM
  #151  
SimBa's Avatar
Senior Member
 
Joined: Oct 2022
Posts: 754
Total Cats: 116
From: Idaho
Default

My $0.02 is that if you're not running race tires just go to XB. That's what I run my car in after a few years pretending to be CSP legal. Our local club has a really fun group of XB cars including a couple turbo'd Miatas, a 2.5 swap NC, a GC8 Impreza and a couple others. Usually some really fun cars in that class. Bonus, not that I think many of us care about it, but the XB pax is better than CSP's (0.849 vs 0.860).
Old 07-25-2024 | 12:17 PM
  #152  
Z_WAAAAAZ's Avatar
Senior Member
iTrader: (1)
 
Joined: Jun 2022
Posts: 1,457
Total Cats: 287
From: Aliso Viejo, CA
Default

Looking forward to hearing the post-race report this weekend!
Old 07-25-2024 | 12:22 PM
  #153  
Fireindc's Avatar
Elite Member
iTrader: (13)
 
Joined: Dec 2006
Posts: 6,819
Total Cats: 659
From: Taos, New mexico
Default

Originally Posted by Z_WAAAAAZ
Looking forward to hearing the post-race report this weekend!
If you call driving around in a parking lot racing

I jest of course. Looking forward to hearing about it as well. Say hey to Tom R for us track guys, he should be there in his Type R.
Old 07-25-2024 | 01:19 PM
  #154  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

Originally Posted by SimBa
My $0.02 is that if you're not running race tires just go to XB. That's what I run my car in after a few years pretending to be CSP legal. Our local club has a really fun group of XB cars including a couple turbo'd Miatas, a 2.5 swap NC, a GC8 Impreza and a couple others. Usually some really fun cars in that class. Bonus, not that I think many of us care about it, but the XB pax is better than CSP's (0.849 vs 0.860).
thanks for that pointer! That's quite the fun grid in your club. I had assumed CSP was a lower class but seems like I had it backwards? I asked the organizers to class my car and they put it in XB. That groups us with a turbo miata and k swapped BRZ among others. I'm slightly worried about my brakes and tires not warming up quickly since it's setup for track duty.

Originally Posted by Z_WAAAAAZ
Looking forward to hearing the post-race report this weekend!
Originally Posted by Fireindc
If you call driving around in a parking lot racing

I jest of course. Looking forward to hearing about it as well. Say hey to Tom R for us track guys, he should be there in his Type R.
I'll certainly give an update on the happenings. hahaha dang Nate. I'll say hi to Tom. Would be cool to ride with him too.
Old 07-25-2024 | 02:37 PM
  #155  
SimBa's Avatar
Senior Member
 
Joined: Oct 2022
Posts: 754
Total Cats: 116
From: Idaho
Default

I usually drag my brakes through grid even with my Hawks (HPS? HP+?). I think you'll be fine after dragging them and a run.
Old 07-25-2024 | 02:42 PM
  #156  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

sweet. That's good to know. Thank you!
Old 07-29-2024 | 02:38 PM
  #157  
redursidae's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2019
Posts: 289
Total Cats: 80
Default

YEYEYE! What a weekend.

It all started by doing some checks on the car. Oil was clean and at the full mark and the catch can had a slight amount of oil in it. Not bad. Unfortunately I again found that the drain plug in the catch can was leaking. I applied a bit of sealant and gave it a good tug.



I then took a peek at the sway bar, because I had the feeling it was seized (car understeered a lot at the track), and sure enough, it was impossible to move. I backed out the bolts and counter nuts on the rainforcement plates until I was able to move it by hand with resistance and left it be. Everything else in the pre-race checks was fine!

Friday I packed my shii into the Miata to go to my friend's house because he offered to trailer the car. The plan was to camp two nights and return Sunday.






This was my first time camping


Others had setup a project to watch the F1 practice. Fun crowd







Scooter was placed in XB because of the ITBs and engine swap. I was placed in the Novice class because I had not autocrossed before. It was a little overwhelming at first because the club runs a fast paced event to get 6 to 8 runs per group per day, and as such I forgot to setup the GoPro on Saturday. They also put me as #1 in grid of group A, so first one on course...nice.

At any rate, Saturday we did 8 runs, and I finished 2nd in Novice, and 27th out of 50 in Raw. I'll take it! First place was my friend Tyler in his 30th anniversary ND2 with fresh new Xidas that we installed 2 weeks ago.





Sunday I was up to pace with the event and setup the GoPro first thing in the morning, after coffee, of course.








Teched and ready to start

Sunday we did 6 sessions. And this is the video of my last session, my fastest of the day.


No cones were harmed in the making of this film

This time, I took 1st in class, and 16th Raw out of 59!


Headed back home


I'm a sucker for motorsports patina on a car (sandblasted wheel arches, exhaust soot, etc.)

At the end of it all, I'm hooked with Autox. It was a lot of fun and the community is fantastic. I also realized that this was my first Autox, but not Scooter's. The PO autocrossed it for a long time! Admittedly, it is far from the car it used to be in 2017, but still a cool thought.

The BP-6D continues to do very well, although the oil leak appears to be getting worse. I'm going to work on it this week and hopefully get that resolved. There is another Superlap this weekend, but I don't think I'll make it because want to spend some time at home, and don't want to rush working on the car either. I will likely sign up for an HPDE sometime next month or go to Pueblo though, we shall see.
Old 07-29-2024 | 04:08 PM
  #158  
Roda's Avatar
Senior Member
 
Joined: Sep 2011
Posts: 1,313
Total Cats: 333
From: Sierra Vista, AZ
Default

Great trip and great result!

Being first car on track for AutoX is definitely not ideal...

Old 07-29-2024 | 05:21 PM
  #159  
Z_WAAAAAZ's Avatar
Senior Member
iTrader: (1)
 
Joined: Jun 2022
Posts: 1,457
Total Cats: 287
From: Aliso Viejo, CA
Default

Solid trip dude! Coffee, camp, and projector setups all look like they were dialed! Oh, and the car of course lol.

16th raw of 59 is killer! Congrats to you and scooter. Your final run looked really solid. Just skirting the line between zero and oversteer there at the end.
Old 07-29-2024 | 06:22 PM
  #160  
Fireindc's Avatar
Elite Member
iTrader: (13)
 
Joined: Dec 2006
Posts: 6,819
Total Cats: 659
From: Taos, New mexico
Default

Good work Ricardo!! All my friends are fast 😉


Quick Reply: Scooter - A Miata Journey and ITB Noises



All times are GMT -4. The time now is 06:00 PM.