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Old 03-28-2019, 05:12 PM   #221
PAdutch
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Originally Posted by mckpat03 View Post
I love seeing 3D modeling in build threads; I mean, it's what I do all day everyday at work, but it's awesome to see folks create their ideas from scratch. I hope the ITB setup works out. Also loving all the meat for the Miata.
Well I'm a design engineer by day so sometimes I cant help myself. I haven't taken the time to take good measurements and verify the fitment but if I want to run itb I think it is the only option. Everything else out there looks really inefficient or won't fit.

I modeled my bushings and made drawings as well. Thought I might wanna sell them but I don't think it's worth the time. They are one offs as well.
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Old 03-29-2019, 07:52 AM   #222
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Gotcha, that makes sense. Sounds like we're in a similar boat, job-wise.
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Old 04-09-2019, 08:40 AM   #223
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295

295s are on the rims, below are some comparisons with the 275s. They are not quite as wide as I had hoped. I also think I can pick up on the tapered edge that has been professed to be the problem.





Anyway I have mounted them on the car. As suspected, there are clearance issues with the shock spring at full lock steering this with only ~1 deg of camber.

The good news is I have pretty good clearance at the rear of the wheel well. Soo I think I am a wheel spacer, and maybe steering limiters, away from having a 295s fit on an NA legally in CSP. First that I know of that.

Eventually I would like to build some offset top hats to limit the amount of spacer needed, or increase camber capability. This is complicated because of the way xida shocks mount but I think I could design one using a hacked up stock mount. Some engineering to do...
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Old 04-23-2019, 03:31 PM   #224
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I installed some ARP studs for spacer accommodations. I also sloppy built some offset tophats. I initially did them to see if they would help with spring clearance, and they do. Now I think I may just and some reinforcement and use them. I also clearanced the upper control arm slightly.










I will be going to TNT at pocono with NEPA SCCA next week to try the changes out and make sure things hold together.
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Old 04-23-2019, 11:26 PM   #225
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You weren't kidding, that is sloppy

That is a LOT more clearance that should give you though... Did you measure before/after?
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Old 04-24-2019, 08:04 AM   #226
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You weren't kidding, that is sloppy

That is a LOT more clearance that should give you though... Did you measure before/after?
I didn't measure but if I had to guess at the top of the rim there is probably .25" extra clearance. The problem was really when turning. The caster brings the top of wheel closer to the spring. Before it would contact, now there is clearance but not a ton.

I did some more work last night. Car is aligned, I am going to try low camber setting. ~1.5 deg in the front and 2 in the rear. If I want to run more camber in the front I need to use 10mm spacer (maybe more) but then I need steering limiters. I may do steering limiters anyway just so I can make changes and know I'm safe but I need to find the easy button for limiters.
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Old 04-24-2019, 08:46 AM   #227
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Delrin spacers turned on a lathe seems to be the easiest button. There's a guy on the brown board that makes them, amaff.
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Old 05-01-2019, 11:19 AM   #228
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Went to the NEPA TNT at pocono yesterday afternoon (easily worth the $20). Show up>work for an hour>get as many runs as possible for an hour>go home.

Positive note, the car stayed together just fine. Generally things were good. I got about 8 runs in I think, mostly making sure things weren't rubbing in a bad way and messing with air pressures. Initially the car felt loose and poor traction but I finally got the tire pressures dialed in, ~23 front/ 25 rear, it felt more balanced and pretty well even heat. I had forgot I turned the shocks full stiff so I could have a good starting point to soften when I got there. I didn't change them until the last run and they very much balanced out the car. There is definitely still room for tweaking but overall a successful trial. The car is still a blast to drive, the driving was poor. My best time was a 55.9, the SMF nationals winning civic was running ~54.6. So I have a lot of time to pick up.

TL:DR Car did fine. Suspension tweaks were made to late. Driver sucks at driving.
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Old 05-13-2019, 10:21 PM   #229
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I found your next car

https://grassrootsmotorsports.com/fo.../152380/page1/
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Old 05-15-2019, 01:13 PM   #230
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If it was close I would seriously consider it. That's a very good price. Especially if it's rust free and with the top.

I am currently watching copart for lfx v6 manuals to swap in...
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Last edited by PAdutch; 05-16-2019 at 08:10 AM.
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Old 05-16-2019, 01:19 PM   #231
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If it was close I would seriously consider it. That's a very good price. Especially if it's rust free and with the top.

I am currently watching copart for lfx v6 manuals to swap in...
The car seems like a great value for what it is! Swap and shell look clean too. Plus the BBK, RPF1s, etc etc. I really think the LFX is going to grow a ton in swap popularity for how much power it makes and for various other reasons that make it a fantastic swap candidate.
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Old 07-11-2019, 03:19 PM   #232
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Long time no post...

I have done a few autocrosses at this point. I have a regular codriver now which has helped. Without a codriver it would definitely be a struggle to get heat in the 295s. I can't say the tires are incredibly different but the car does feel good and we appear to be using them completely. They seem to like a little less pressure than the 275s.

Last event was Pocono, a 2 day event. 1rst day, my codriver ran up a curb pretty bad and came back with a dangling exhaust. we wired tied it back up and kept running the car. It was noticeably louder so I knew something was broke. Turns out the weld at the header merge broke.



Random pocono pic


The car continues to be very reliable and a ton of fun. Having a baby has very much limited my time for autocross but this car has been a blessing to get out and not have any major issues.
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Old 07-11-2019, 10:47 PM   #233
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I was wondering if you'd been running it! Looking good with the flares and all!
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Old 07-19-2019, 02:57 PM   #234
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Some more header damage:




While in there I notice the merge of the 2 to 1 pipes was not very good so I did some die grinding to make the merge more smooth.




Where I ended up:



It's still not perfect but it's better. I bought some stainless flux core weld wire to fix this. It will test my meager welding abilities.
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Old 08-26-2019, 05:23 PM   #235
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Saw your car but not you on Sunday at NEPA's event! We were running opposing heats.
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Old 08-27-2019, 02:01 PM   #236
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Saw your car but not you on Sunday at NEPA's event! We were running opposing heats.
Same here. I didn't notice you were there until I notice the fast CS miata out there and then we were on opposite schedules. Having a baby at home means I don't hang around either. You were pretty fast, hopefully you feel ready for nationals.

My car was understeering terribly. Last event I was chasing alignment while, unknowingly, having a bad rear wheel bearing. Fixed the bearing, thought I had the alignment right but I guess I didn't. Changed rear toe and made it better for the afternoon but it still needs to be better. O yeah, I need to drive way better.
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Old 08-30-2019, 02:16 PM   #237
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I like to pretend I have the time to tear apart cars so I bought this. A rusted up NB2 that has a wobbly crank pulley that I got for basically scrap value. Funny it starts and runs nicely. I'll be keeping the drivetrain for spares, parting out whatever sells easily and taking it to the junk yard.




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Old 09-08-2019, 08:27 PM   #238
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Interior looks really nice!
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Old 09-09-2019, 10:51 AM   #239
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Interior looks really nice!
It is. I think I may be swapping the seats in the white NA. I have sold things. I'll be making a little money on this one. Currently contemplating building the engine over the winter to the limit of CSP. .040 over, forged pistons, head surfaced at factory limits, porting.

I'm afraid of losing my excuses for why I am slow
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Old 09-09-2019, 10:54 AM   #240
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Excuses suck. Just send it and go fast
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