Originally Posted by doward
(Post 1505741)
. goes back into my budget as a whole season's worth of entry fees, or an EFR 6258
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Hm, all great info. I guess I thought (wrongly) that compression was worth more. By the time I get moving towards ST5 I'll probably be doing a lot of cloning what's documented here. I think the additional power is definitely the way to go, along with unlocking 225 hoosiers. Should put the NA/NB in a good spot.
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Out of curiosity, how much did the work run you for the head? Not including cost of parts etc. Emilio said 2.5x price of stock rebuild, but I'm not sure what that runs in your neck of the woods for a customer. Obviously, you guys may have different rates given relationships with folks like Keegan, but I was curious what a plebe could expect to fork over for such luxury.
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Head is swapped. Waiting on bits to come back from powder coat by the end of the week. I am having the squaretop and valve cover done in the same orange as Vegas.
I am replacing the windshield as well. My DiY version using scratch 'resistant' sign box Makrolon is 3 years old now and getting pretty hazy. Moving to a true motorsport oriented, Supercoated poly-carbonate windshield from Supermiata. It received a very deep banner, touring car style, to along with my recent orange endplates and doorsills. https://cimg0.ibsrv.net/gimg/www.mia...81a4a157de.jpg Also, new pedal covers. https://cimg9.ibsrv.net/gimg/www.mia...2b49a90b3a.jpg |
Oh, and for posterity in the future, here are the cylinder bores, deck surface and stock valves/combustion chamber from the SM BP4W:
https://cimg5.ibsrv.net/gimg/www.mia...ce491dd11d.jpg https://cimg8.ibsrv.net/gimg/www.mia...a8cad3ccbf.jpg https://cimg1.ibsrv.net/gimg/www.mia...4b88e61b33.jpg |
https://cimg5.ibsrv.net/gimg/www.mia...a2342e6f3.jpeg https://cimg6.ibsrv.net/gimg/www.mia...4317debad.jpeg https://cimg8.ibsrv.net/gimg/www.mia...2628ed630.jpeg Tonight was productive. Had to redo half of a timing belt job to move the timing plate over from the old cylinder head. Also so got my Setrab oil cooler mocked up and mounting brackets made. Also also, new to me Supermiata polycarbonate windshield is in. No more rivets. Now rivnuts and buttonhead stainless hardware. I’m honestly not sold on the rivnut method but it is damn convenient and “Pro”. My rivet install never cracked the makrolon, but every windshield I’ve seen bolted down has cracked. Time will tell. |
Do as I say, not as I do."
Next time you're in there, just do the rear main seal. Mine was fresh with this motor build about 4 years ago and I didn't expect it be bad, but it was. $100 and 6 hours of my life later... https://cimg4.ibsrv.net/gimg/www.mia...8600214774.jpg https://cimg0.ibsrv.net/gimg/www.mia...012c321e0b.jpg https://cimg5.ibsrv.net/gimg/www.mia...5eee575633.jpg |
Picked up the powder today. Quickly went to work contaminating the finish on the top half of my squaretop with brake clean while cleaning it after port matching it. Woooo. as a bonus, I found the screw head from my oem throttle body asplosion hanging out in the EGR duct inside my intake manifold. https://cimg6.ibsrv.net/gimg/www.mia...55df1569e.jpeg https://cimg0.ibsrv.net/gimg/www.mia...2da2e2354.jpeg https://cimg2.ibsrv.net/gimg/www.mia...42893fdf9.jpeg https://cimg7.ibsrv.net/gimg/www.mia...467bc4c6c.jpeg https://cimg9.ibsrv.net/gimg/www.mia...e1eec2c43.jpeg |
While I drove Button for shakedown at Chuckwalla, I'd rather this post be about my racing in Supermiata S2.
Supermiata Chuckwalla 2018 final event. Dennis has clinched the S2 season championship. Anthony Bedegi is sitting second, but unable to attend. If Sky Chan finishes higher than 6th of 10 in any race this weekend, he’ll surpass Anthony for 2nd overall. Maxxis Supermiata Cup format: 4 SuperSprint races over two days. Standard qually format for race 1, standing start for all 4 races. I qualified p2 on Saturday morning, driving “Miller”, Sonny’s S2 car(while he was off racing a ChampCar double endure.) Race 1: Starting p2 from the front row, one move around Dennis(pole sitter and 2018 S2 Champ) into T2, hold lead by driving a 20ft wide Miata for 5 laps to win SuperSprint #1. podium was me, Jeff Ringer p2, Dennis Uebersetzig p3. I set fastest race lap for day 1 on lap 4 with a 4: 2:03.645. Race 2, Inverted grid, so I started last, Ringer next to me, Dennis in front of me. Good battles all race long, eventually working up to p2 behind Dennis, with Ringer p3. (We were supposed to be single file, with a no passing zone onto the front straight, because of a pit wall choke point, I obeyed this all day to my detriment) Day 2, opposite track direction. Race 3: Inverted grid from race 2 result. Dennis had an engine issue in morning practice, so I start last again. I move from last to first in less than a lap. Adam tails along but makes a mistake under braking and exits track right. Subsequent laps are boring on video, but lap 1 is awesome. Race 4: Inverted grid from race 3 results. I start last, Ringer next to me again. This guy doesn’t go away. I have a terrible start, I blame Sky for jumping on the yellow flag, breaking my concentration. Slow progress through the field, Adam gets away for a clean win. I chase up to Ringer and have about a lap to try and attack. He doesn’t make any major mistakes, so I settle for p3. I set fastest race lap of day 2 on lap 4 of 5, 2:04.362. Results: Qually p2 2:03.700. (Dennis did a 2:02.943) Race #1 win Race #2 2nd Race #3 win Race #4 3rd Fastest race lap both days. |
New windshield from Supermiata, more orange and a fresh set of TiO2 15x9" 6ULs
https://cimg0.ibsrv.net/gimg/www.mia...a3a6416494.jpg https://cimg8.ibsrv.net/gimg/www.mia...1cb493849b.jpg https://cimg9.ibsrv.net/gimg/www.mia...090af5086b.jpg |
Nothing super sciency or conclusive, just keeping notes here. Confirming some assumptions.
Originally Posted by doward
(Post 1467769)
NASA Arizona, Chuckwalla, Feb 2018.
225 Maxxis RC1 2:03.048 CW 2:05.619 CCW 205 Hoosier R7s 2:00.983 CW 2:01.032 CCW New cylinder head only made 4-5 more whp. Something not happy in the bottom end, lost oil pressure on day two. Car is about 100lbs lighter than it was in February. Still ST5 legal(14.66 adj) at 2150/144 peak(~140avg). Room for more power, which was the goal. 225 Maxxis RC1 (Stickers) 2:01.9 CCW 205 Hoosier R7 (same set I raced on in 2016, TT'd on in Feb 18, probably 20+ cycles) 2:03.07 CCW So, sticker RC1 in the same "real" size(both tires are 224-226mm wide) are faster than cycled R7. Weather, track conditions, cycle count, weight reduction and 4whp worked out to be worth about 3.7 seconds on 225/45 RC1s. |
Scored a JDM NB2 shortblock locally. It spins by hand, but has some cylinder wall surface rust. A bit of elbow grease, wd40 and paper towel is removing it. I could move my new schmancy cylinder head over and lick the stamp, but...
I really want something I can not worry about for a while. I'm thinking an 80/20 approach is the way to go: OEM pistons, jdm nb2 OEM oil pump, Mazda nb2 Manley rods ARP studs ACL bearings OEM, or Fluidamper. Keegan already has a block torn down from the core I provided for my cylinder head build. That should cover everything I'll likely want to do with it. Merry Christmas to me. |
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Beer goggles
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Keegan picked up the engine today.
Final parts list, typical "while im in there" happened and a MT Rods-only rebuild got out of hand... Both blocks needed bored, then Mike offered me a set of forged slugs for what I would have paid Mazda for new OEM nb2 pistons. OEM oil pump, Mazda nb2 Manley rods ARP studs, both head and main. ACL bearings crank damper TBD clean and skim the head another couple thou to get it to 10.4:1. In the end, I've circled back to a $4000 engine that makes 165whp, and is ready for a TSE6758 whenever my wallet recovers. "How fast do you wanna go?" Same goal: 158 on pump gas @ 2400lbs for ST5 with ballast, 165+ on e85 at 2200lbs for no-ballast/high power fun days/gridlife/roadstercup/etc. |
Stock oil pump on a "while you are in there" build?
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Originally Posted by aidandj
(Post 1516675)
Stock oil pump on a "while you are in there" build?
I always like to see builds like this, research every last little thing and make every dollar count. Max win for min dollar. I'm looking forward to getting this thing on the dyno. Fingers crossedI that it'll just touch 170 on corn. |
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Motor and parts are all with Keegan. He's got his choice of two blocks to pair with my slightly fancy head. I probably won't see it before the first SPM event late this month, or the first NASA Socal/AZ event in February. So I have some time to tinker...
I think I am going to finally replace my ratty rear bumper, chop out the rest of my doors, and gut my trunk lid. After that, I'll be about out of weight reduction opportunities in my acceptable time/$ per lb range. I would need to go to a small battery, shorter cable, etc and potentially delete my headlights. I've not used them since 2015... so I could probably let them go. ...and maybe, juuuust maybe, give the interior some paint. Then de-sticker it. Time for something fresh on the outside. Also, Gridlife Touring Cup "GLTC" has been announced. 15 minute sprint races at a select few Gridlife events. Roughly 12.5:1 P:W, no A7s, a few ratio modifiers for certain things. Gut-punches for my car: 3" splitter Glass or 1/4" plastic windshield |
what is your plan for balancing the rear with the 3" splitter? I thought you were already running 0* AOA? I could be wrong about that. Is there a point hit for a 4" splitter or is it just entirely illegal?
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Originally Posted by MiataMan00
(Post 1518662)
what is your plan for balancing the rear with the 3" splitter? I thought you were already running 0* AOA? I could be wrong about that. Is there a point hit for a 4" splitter or is it just entirely illegal?
Rules: https://drive.google.com/file/d/1_QL...FmPAqAQGr/view They require a glass, or 1/4" plastic windshield, and limit splitter depth to 3". Currently, my car is not legal. |
Get with the times whorge!
I'm really curious to see how GLTC goes over the next couple of seasons. It'd be cool if it expands to multiple tracks and maybe becomes THE catch-all w2w series. |
Engine is in.
Engine is through its first oil change, needs a second swap for the Amsoil dominator race oil, then a thorough tune with our external/optical rpm pickup. Still debating the pro/con of a splitter. It costs me .5 penalty in P:W, roughly 75lbs in current 139whp config. A minor improvement in radiator ducting has been made, and a cool comparison photo was taken of a Supermiata S2/ST5/ST6 airdam undertray laid under a Supermiata S1/ST5/ST4 4” splitter. The birch plywood tray is from Renderos Racing. I bought one of his kits Incase I decide to delete my splitter for the P:W bump, or for Gridlife GLTC use. https://cimg1.ibsrv.net/gimg/www.mia...840f19de2.jpeg https://cimg3.ibsrv.net/gimg/www.mia...a1961c416.jpeg https://cimg4.ibsrv.net/gimg/www.mia...c59dde782.jpeg https://cimg6.ibsrv.net/gimg/www.mia...ddad77619.jpeg https://cimg8.ibsrv.net/gimg/www.mia...5c34c6dd8.jpeg https://cimg0.ibsrv.net/gimg/www.mia...3794cf10b.jpeg |
2215lbs with a qtr tank AND driver.
Ballast up (2400-2450lbs) for ST5, pull it out for GLTC. Win. It needs some new corner weight attention after the latest round of weight removal, then another oil change and a final dyno appointment. https://cimg9.ibsrv.net/gimg/www.mia...d9ffc5e0b.jpeg https://cimg0.ibsrv.net/gimg/www.mia...8aff963f9.jpeg |
Prep post:
New engine is in. Its been to the dyno a couple times. It is shy of our power goals. We're all kind of stumped. A few other engines with very similar builds have landed in the 160-165 range, this one should have too. But our best run so far has been 151.44, SAE Dynojet, smoothing 5 for NASA ST rules. https://cimg7.ibsrv.net/gimg/www.mia...109cd822bd.jpg I've double checked cam timing, swapped to amsoil dominator race oil, fresh clean air filter, new muffler(Racing Beat's new Power Pulse Race Muffler, look for it on Supermiata.com) and just generally gone through the car looking for any and every little problem. It makes 151whp on corn. https://cimg0.ibsrv.net/gimg/www.mia...d8f5f182c8.jpg So, without the 151-158 Average, I can't ballast up to 2400lbs. That means I can't run 9" wheels or 225 R7s. So, I'll stick with my light weight 2250lb build, with splitter and 205s on 8" wheels. The car is capable of being sub 2215lbs with me in, so I need to add about 40lbs of ballast to keep from going under 2250 if I run it out of gas. With no ballast added, and no fuel, my 1999 miata weighed 1999lbs on the hub stands, kinda cool. https://cimg6.ibsrv.net/gimg/www.mia...f1f42ebfc6.jpg https://cimg5.ibsrv.net/gimg/www.mia...9253fa5f81.jpg |
Weekend recap:
NASA SoCal. 3 in ST5 Saturday, 1 in ST5 Sunday. So I TT'd only. 11 in TT5 Saturday turned into 8 Sunday. Basically, right off the trailer onto the track. Session 1 Sat morning is warmup/practice, times don’t count. I ran it on 225 RC1. https://cimg9.ibsrv.net/gimg/www.mia...0672868620.jpg Session 2 was timed, and good conditions. I swapped to some fresh R7s and ran a new PR. 1:58.75. https://cimg9.ibsrv.net/gimg/www.mia...81c18565e6.jpg https://cimg0.ibsrv.net/gimg/www.mia...a1752b3d8f.jpg Peep that new Racing Beat Race muffler: https://cimg1.ibsrv.net/gimg/www.mia...1fa0ef88f9.jpg Team TAPG (Toyota Arizona Proving Ground) threw in their hotshoe, and a set of stickers and nudged me out in session 3. So I had to go back out in session 4. https://cimg3.ibsrv.net/gimg/www.mia...d7a770ea09.jpg I went through my data and found several places for improvement for session 4. One of the best drives in recent memory, and I was able to drop some time, but I was not able to outpace the terrible conditions. 80* ambient, windy, 105* surface. If I had been a bit more familiar with the car, or had a test day... https://cimg4.ibsrv.net/gimg/www.mia...385c1573fe.jpg We put 3 seconds on the field. J Allan in P3 won a PTC championship alongside me(in PTE) in 2016 and is no slouch. Day Two: Session one, best conditions, now counts for competition. I went ham. Again, THIS session was some of my best driving in memory. Data review from the day before, tire data from the day before, fantastic conditions, no breeze, cool air, no clouds. So good. https://cimg6.ibsrv.net/gimg/www.mia...a2c786034a.jpg https://cimg8.ibsrv.net/gimg/www.mia...617c4ee743.jpg https://cimg7.ibsrv.net/gimg/www.mia...f6312cb73d.jpg |
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:likecat::likecat::likecat:
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So Preaux.
How come no Tarmac88 steekers |
Originally Posted by emilio700
(Post 1530581)
So Preaux.
How come no Tarmac88 steekers |
Loooooong two months, lots to update.
Buttonwillow was good. 1st/2nd, 3 new Hoosiers and a track record. I am still reliving the memories of the 1:58 laps in my own car. Shortly afterwards, we took the car back to the dyno for a checkup and things didn't go well. The car sputtered weird and died pulling in onto the dyno and wouldn't re-fire. I pulled the engine out and had Keegan tear it down as we could not identify anything wrong externally(timing/ignition/etc) Turns out I had some debris in my oil cooler from the previous engine that killed the bottom end, and as our theory goes, probably accounts for the missing 15whp. Mike was able to save the rods and cams, but it needed new bearings and a fresh donor block. https://cimg1.ibsrv.net/gimg/www.mia...757f189626.jpg That engine is on its way back to the fellas at 949/SPM to get broken in and tuned before heading over to me for the run-up to NASA Championships. Since then, a lot of life things happened. My wife received an offer for a promotion that brought us back to Columbus, OH. Ed May came on board to fill my seat and he got a couple whirlwind weeks of training in March before I left to move east in late April. We did some fun Land Cruisering even with the trailer behind us. Lake Havasu, AZ BLM camping, Nat'l Forest rd camping at the south rim of Grand Canyon, then a bunch of boring highway across Texas and up to Ohio. https://cimg8.ibsrv.net/gimg/www.mia...bb888ddda3.jpg https://cimg5.ibsrv.net/gimg/www.mia...3fee222b9b.jpg https://cimg0.ibsrv.net/gimg/www.mia...4d1b969ea1.jpg https://cimg7.ibsrv.net/gimg/www.mia...580b6d758b.jpg https://cimg9.ibsrv.net/gimg/www.mia...ff21377907.jpg |
:likecat: That's a beautiful little spot. California misses you and so do we. Thanks for creating a pretty neat job opening, though :)
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While Button has been waiting for its engine to return from refresh, I have been playing with an NB2 in NASA TT6: "Tia" https://www.miataturbo.net/build-thr...t6-car-100713/
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Lots of "life" happening lately, not much racing or anything with my own cars. Some cool stuff I can share soon, but also a lot of shit.
Earlier this month my engine arrived from the builder. I did quite a number on it with the oil cooler debris so the repair/rebuild actually cost me a new core engine. The timing of the k24z3 swap hurts, bad. I have semi-joked about this, but I really hope this is the last BP engine I ever invest in. Oh well, its in. Keegan told me not to reuse the orange valvecover without new baffle plate covers. The dude obliges. https://cimg9.ibsrv.net/gimg/www.mia...6ac65a59e5.jpg https://cimg1.ibsrv.net/gimg/www.mia...f16dc48d1a.jpg I ponied up for a multiple-hour professional tune and it runs so smooth now. It doesn't make any more peak power, but drivability, idle and part throttle transitions are butter now. I'll likely get compliance tested on Saturday, so I am hoping that burning off whats left of this 3-4 month old e85 and another hour or two of run time shows up for another 3-4%, but I doubt it. https://cimg5.ibsrv.net/gimg/www.mia...18eba67209.jpg The scaling on the printout makes it look peaky, its not. It makes 152.33 peak and 148.75(149) NASA Average. My previous two engines had 5 and 9whp drops from peak to average. This one is really healthy and sounds/feels as good as the fully forged "zero point" engine I ran in 2016 and that went on in Bullet to TSE goodness. Being realistic about what this engine is, I am not sure if 160+ was a valid goal. I look around for real life examples of similar builds and they all have Tomei cams, coatings, more compression, or ITBs to make more. It is "just" a refreshed .5mm oversized BP5A with a little hand porting and +1mm valves. A mod list sometimes makes it sound more wild than it is. Mazdacomp cast 84mm pistons 10.5:1 (OEM JDM service part) OEM MSM/JDM BP5A intake cam OEM EUDM intake manifold with light throat porting to match the S2 TB. +1 Supertech valves e85 The rods, studs, throttlebody and crank damper are reliability stuff, not power. Anyways, it makes enough power to justify running at 2400lbs so I can fit up to 257mm tires in NASA ST/TT. Woot. That means 225 R7 on 9 or 9.5" wheels. I've been running these not-very-attractive 9.5" Konig Freeforms since they, for some reason, found justification for the half size and they feel awesome on the TT6 car. https://cimg2.ibsrv.net/gimg/www.mia...3df1ac3946.jpg https://cimg6.ibsrv.net/gimg/www.mia...76e81ec4a3.jpg https://cimg9.ibsrv.net/gimg/www.mia...0418ed362b.jpg |
https://cimg8.ibsrv.net/gimg/www.mia...e0ac0260ae.jpg
https://cimg6.ibsrv.net/gimg/www.mia...81ef8c113f.jpg https://cimg9.ibsrv.net/gimg/www.mia...b880050f81.jpg https://cimg5.ibsrv.net/gimg/www.mia...838a98f846.jpg Dyno results. OEM JDM 10.5:1 pistons BP5A cam Sqauretop S2 throttle body Keegan hand porting/bowl blend 2400lbs/153 leaves me a bit of dyno cushion and allows using the 257mm tire template(225/45/15 R7 on 9.5" wheels) |
https://cimg4.ibsrv.net/gimg/www.mia...e7197035d3.jpg
https://cimg1.ibsrv.net/gimg/www.mia...4ab9e86c93.jpg https://cimg2.ibsrv.net/gimg/www.mia...aaa05eb699.jpg Warm up on 15x9 Charcoal 6UL w/205 SM7 https://cimg1.ibsrv.net/gimg/www.mia...39a2db0c06.jpg Race 1 on the baked 225/45s on 15x9.5" Konig Freeform. https://cimg4.ibsrv.net/gimg/www.mia...bb15486502.jpg https://cimg5.ibsrv.net/gimg/www.mia...aa39c828bc.jpg |
Are you running ST5 at Nationals?
I didn’t see your name on the registration list last time I checked... |
Originally Posted by Efini~FC3S
(Post 1547936)
Are you running ST5 at Nationals?
I didn’t see your name on the registration list last time I checked... Life got in the way and the engine isn't behaving. |
Been thinking about this car the last week or so.
I didn't think it would be such a big change, but the way the car drives at 2200 vs 2400 is wildly different. I much prefer the lighter car as a Driver. Also, the stupid frickin OEM subframe Kswap won't leave me alone. This BP4W, back on pump 93, would be an 'ideal' 6 engine, and we have an ST6 NB1 that could use it... That would free Button up to receive a K24z3 this winter... If I end up keeping the BP, then i'll probably knock the peak down a bit and pull the weight back out of it. The 2200lb car was way more fun last year. |
When I talked to you at Mid-O you mentioned she cut-out and wouldn't re-fire. You figure out the issues yet?
While the K motor itself is wonderfully reliable and makes easy power, K Miatas products are not the highest quality in my experience. Justin Lee has a K Miata trans kit in the WRL V6 car and at Mid-O last October we were fighting issues with driveline vibration and sloppy driveshaft joints that ate 3 output shaft seals and stripped out the adapter piece. Not to mention the numerous issues Greg Peters has had on his car. |
I have a K-Miata BMW trans kit and have no problems with the custom driveshaft. It was made by a driveshaft shop and isn't something made in house by them according to the packaging.
Sometimes outside suppliers get it wrong, so taking it to a local driveshaft shop to have the balance and components checked would have been on my list after first indication of trouble. Even brand new u-joints can fail. I had good responses out of them for every question I had. |
2020 NASA ST rules are official, and the submission calculator is updated/live.
https://www.nasaproracing.com/rules https://community.drivenasa.com/topi...ions-proposed/ Toyo RR is added to the 100tw category and therefore gets a +.5 credit and is available in 245/40/15. That becomes pretty attractive. I am considering 225/45 RR on 9" for less contested events/practice setup as it "pays for" my splitter(-.5). That lets me run at 150/2265 with splitter/wing at my current power. Using 205 R7 on an 8" requires me to add 75lbs(at 150avg whp) |
I’ve been wanting to confirm this combination for a while now, and finally had all the parts on hand at one time.
11.75” Trackspeed “Mega” BBK. (Wilwood Superlite, 7420 pad) 15x9.5” +29 Konig Freeform no spacer needed, plenty of room. https://cimg9.ibsrv.net/gimg/www.mia...3fcebab78.jpeg https://cimg0.ibsrv.net/gimg/www.mia...b442a4bd6.jpeg https://cimg3.ibsrv.net/gimg/www.mia...0f2838bfa.jpeg https://cimg1.ibsrv.net/gimg/www.mia...cbb782787.jpeg Consumable cost economy almost makes sense as a single set of front pads might last a whole ST5 sprint racing season. |
Originally Posted by doward
(Post 1557927)
I’ve been wanting to confirm this combination for a while now, and finally had all the parts on hand at one time.
11.75” Trackspeed “Mega” BBK. (Wilwood Superlite, 7420 pad) 15x9.5” +29 Konig Freeform no spacer needed, plenty of room. Consumable cost economy almost makes sense as a single set of front pads might last a whole ST5 sprint racing season. |
https://cimg4.ibsrv.net/gimg/www.mia...1c0439cb2.jpeg
https://cimg5.ibsrv.net/gimg/www.mia...a91c00a0a.jpeg https://cimg9.ibsrv.net/gimg/www.mia...7211ff676.jpeg https://cimg1.ibsrv.net/gimg/www.mia...11a542238.jpeg I took a few months off Miata-ing from NASA Champs until after New Years. Felt good to disconnect from this car for a while, and I feel recharged for 2020 efforts. Keegan Engineering is going to help get the engine package up to GLTC power level. So I pulled the lump and it’s leaving today. I’m still focusing primarily on NASA ST5/TT5 for 2020, but will be making a couple mods that take penalties in that ruleset so the car is better for GLTC and just fun local HPDE stuff with friends. Unless the stars align, I won’t be making the tow to Utah, so Miata Reunion is probably my farthest travel plan. 2020 Goals: -Sub 1:37 Mid Ohio Club Course N/A BP -Drive VIR again -Drive Road Atlanta for the first time. -Sweet new Tarmac 88 livery. |
Originally Posted by doward
(Post 1560093)
-Sweet new Tarmac 88 livery.
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Originally Posted by Brap-Brap
(Post 1548209)
When I talked to you at Mid-O you mentioned she cut-out and wouldn't re-fire. You figure out the issues yet?
While the K motor itself is wonderfully reliable and makes easy power, K Miatas products are not the highest quality in my experience. Justin Lee has a K Miata trans kit in the WRL V6 car and at Mid-O last October we were fighting issues with driveline vibration and sloppy driveshaft joints that ate 3 output shaft seals and stripped out the adapter piece. Not to mention the numerous issues Greg Peters has had on his car. Presuambly you are aware they had a problem in the first batch or so with one of the pieces in the kit? I had unreal (read frghtening) vibration and got sent a replacement part. Between that and a drive shaft balance it has mostly gone away now. I too found them incredibly helpfull and very keen to work through any issues. Coudln't recommend them enough. Anyway, sorry to hijack. |
What kind of power are you aiming for in GLTC trim? I know most of the Miatas are running (or swaping to) K24's. A few dumb people (Cody and I) are sticking to low boost BP's.
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Originally Posted by Midtenn
(Post 1560103)
A few dumb people (Cody and I) are sticking to low boost BP's.
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Originally Posted by Midtenn
(Post 1560103)
What kind of power are you aiming for in GLTC trim? I know most of the Miatas are running (or swaping to) K24's. A few dumb people (Cody and I) are sticking to low boost BP's.
I plan on running a splitter, and pulling all 250lbs of NASA ballast out, so it will be a very light(~2180) car on 205s, probably. |
If it's that light, you may need to talk to @concealer404 about jounce testing it.
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I'm happy to avail myself and my services if you need some scientific testing. :)
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Originally Posted by turbofan
(Post 1560094)
IN.
https://cimg8.ibsrv.net/gimg/www.mia...f6082a6aa.jpeg https://cimg7.ibsrv.net/gimg/www.mia...37ca2001e.jpeg https://cimg0.ibsrv.net/gimg/www.mia...e1dbb1982.jpeg https://cimg2.ibsrv.net/gimg/www.mia...7aa0994d6.jpeg |
I’m undecided on the headlights. I have satin black for them like the “rendering”, but covering them with the white/color gradient would also be cool.
I have to make a decision on the build plan concerning splitter vs airdam-only, before I wrap one of the airdams. I’ve wrapped a few commercial vans/trucks in my past, but never worked with panels this large on such a curvy car before. So I’m learning a ton as I go. The rear bumper and hardtop will likely get 3-4 pieces with seams. They’ll both have two colors, and each color with need two pieces. |
Cool concept. Makes for entertaining discussions on what car you're driving:
https://images2.imgbox.com/56/98/eKeXJj2L_o.jpg |
Originally Posted by Midtenn
(Post 1560491)
Cool concept. Makes for entertaining discussions on what car you're driving:
it’s only going to get more confusing. Lol https://cimg4.ibsrv.net/gimg/www.mia...d5b1af104.jpeg |
Live tweet:
https://cimg7.ibsrv.net/gimg/www.mia...6f057df69.jpeg Edit: this is where I’m leaving it for the weekend. https://cimg2.ibsrv.net/gimg/www.mia...c737d9429.jpeg P.S. Keegan Engineering received my engine today. |
What are you doing differently with the engine build to hit the power target?
|
Originally Posted by Efini~FC3S
(Post 1560546)
What are you doing differently with the engine build to hit the power target?
Keegan has a custom cam grind he’s gonna throw in it, and a set of 84mm Wisecos instead of the OEM JDM 83.5mm. |
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