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OneTwo's Purple Drank
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Well I drank the Kool-Aid too, which is what spurred the name of this turd.
In the same vein (hopefully) as the 949 Rental and 95R, Trackspeed Rover, and Hornetball’s Red build, I present you with “Purple Drank”. Mission: Build a capable, reliable car in order to win at HPDE and the adoration of all (few) Sub-mission: Try and have the guy behind the wheel learn how to drive a bit without wadding anything up. Step one: Buy car. https://www.miataturbo.net/attachmen...ine=1426816338 Found this 1996 M edition for sale locally about 2 years ago. Well cared for and almost bone stock. Car came with a double hoop roll bar, Racing Beat intake, and a Koyo 37. It was clean and basically unmolested so I didn’t have anything to repair. New timing belt, maintenance was up to date. M.net wine and cheese types can weep at the thought of defiling an M edition. Win. Step 2: Read and research. Initially I had boner inducing visions of V8 burnouts and spurting blow off valves. Call it my Miata adolescence. While is still think V8s and turbo’s are frigging awesome (wouldn’t be here if I didn’t), it’s the LAST thing some track newb needs to play with. Plus it’s tough to do on a budget unless you are a badass. The more I read the more I realized that a low power/high grip quasi-budget build would be the best course of action. Motor will be the last thing to do. As she sits today. https://www.miataturbo.net/attachmen...ine=1426816338 http://billwangphotos.smugmug.com/Tr...030A1819-M.jpg http://billwangphotos.smugmug.com/Tr...030A2403-M.jpg Here is a current mod list:
So that brings me up to date. BUT, there are some new developments. I’ll post up some photos later this evening once I’m home from work. Stupid corporate laptop wont let me access Flickr! https://www.miataturbo.net/attachmen...ine=1426802711 |
New parts
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Some upgrades in the works
Operation: ALLOFTHESHIFTS :bowrofl: https://www.miataturbo.net/attachmen...ine=1426817426 MSM 6 speed - Got a killer deal on this which allowed me to grab a couple other things to go along with it. NB starter Supermiata 1.6 flywheel ACT HD 1.6 with street disc New hydraulics and braided clutch line Miataroadster tall angled shifter I should net another 10 lbs off the car with the swap even with the additional weight of the 6 speed. https://www.miataturbo.net/attachmen...ine=1426817426 4.3 Torsen - I used Brains method to knock out the bushings, took 5 mins per side with a hammer and cold chisel. ES Poly or Delrin mounts for this. Planning on keeping my factory 4.1 torsen in case I hate it. I have a feeling its going to pair well with an N/A build. |
You are going to love the 6x4.3 on track. Much excellent. ECU or NB engine in its future?
I'm guessing you're at around 120whp now. 145whp is more better. |
Yeah the 6x4.3 1-5 ratios looked similar to a 5x4.875, with an extra gear to get me to and from the track at 75 mph. Can't wait to try it out.
ECU in the very near future. I picked up a MSPNP2 in trade about a month ago. plugged it in and got everything connected yesterday. Just waiting on getting a bung welded into a spare test pipe and I'll start tuning. For the motor, I already have a square top and 99 head sitting in my garage. Original plan was to swap this onto my current motor and see what it could do, but this motor is starting to have oil pressure issues at start up. I'm thinking its probably a sticking oil pressure release valve. New plan is to run this motor through October, smog it, then go NB2 bottom end or have something built. Ill be ecstatic if I can squeak out 130-135 whp with some tuning for the time being. |
Very nice! I picked up a 4.3 with an OSGiken a while ago and I plan on staying N/A, as well, so I hope I like the gearing too! I will be going from a 3.9 to a 4.3, so it will be a lot more shifting lol.
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The 6spd/4.3 combo scares me. I want to try it, but so scare for street use.
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By street use, do you mean highway? I live 5 hours from the nearest track, so I am super-screwed, but around town it should be fine.
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Yes, 3-7 hour trips won't be uncommon with this car.
That said, the NVH is going to be pretty horrid anyways, so i suppose it doesn't really matter. |
You have the SM engine mounts, right? I will be getting those, too, so we will be in the same boat.
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The 6 x 4.3 is a necessary evil for a dedicated track car. So perfect on track, always in the right gear and often two gears to choose from. The 5 speed only works with a 4.77 (Kia) and a fairly broad powerband.
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Originally Posted by Chilicharger665
(Post 1216955)
You have the SM engine mounts, right? I will be getting those, too, so we will be in the same boat.
That said I have a fresh set of MazComps ready to go in if they are that bad. :giggle: |
Sack up, boy.
You're already down the path this far... Why hold back now? (Plus, I'll totally toss those Mazda ones into Mary's car... She's in desperate need of new motor mounts! ) |
What's your timeframe on the subframes? I have an autox April 19th. They'll be in before then at the latest. I won't have tires until the 13th, so i probably won't be able to give much feedback before then, since the tires on the car now sketch me right the fuck out.
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Originally Posted by concealer404
(Post 1217018)
What's your timeframe on the subframes? I have an autox April 19th. They'll be in before then at the latest. I won't have tires until the 13th, so i probably won't be able to give much feedback before then, since the tires on the car now sketch me right the fuck out.
Between a nagging GF, work, and fear of getting dirty I would say a month is about right. The 6 speed should go in next weekend.
Originally Posted by SchmoozerJoe
(Post 1217017)
Sack up, boy.
You're already down the path this far... Why hold back now? |
Our GFs are so much different... I keep forgetting about your estrogen component!
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Props for a fantastic looking car and a great post. Sounds like fun.
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Originally Posted by turbofan
(Post 1217133)
Props for a fantastic looking car and a great post. Sounds like fun.
Well this happened yesterday. Huge thanks to Twibs415 for access to his shop and doing most of the work. This guys knows his way around a Miata. https://www.miataturbo.net/attachmen...ine=1427646918 We managed to get the swap done in 4 hours, including new hydraulics for the clutch. Only problem was once we pulled it off the lift and pushed in the clutch it was making a pretty strange whirring noise that neither of us were comfortable with. So we got to do it a 2nd time. Pulled it back apart, rechecked everything, all looked good. Put it back together again, dropped it off the lift and :facepalm: Same sound. We decided I would drive it home, order a new throwout bearing, and we would pull if back apart next weekend. After a 10 minute drive home on the freeway the sound was completely gone! EFF YES. Definitely something I'll keep my eye on, but so far so good. https://www.miataturbo.net/attachmen...ine=1427646918 |
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6 speed and ACT HD have been pretty awesome since throwing them in. Still breaking in the clutch. Can't wait to use it at the track. NB front subframe will be going in on Sunday, cannot wait to swap out this crunchy intermediate shaft.
Had some new goodies come in too. https://www.miataturbo.net/attachmen...ine=1428689230 2.5" metal core cat with O2 bung for my AEM (Cant have the smog nazi's smelling your test pipe in CA) https://www.miataturbo.net/attachmen...ine=1428689230 Racetech RT1000 for the passenger side. Have an RT4009 incoming for the drivers side. I made the decision to overhaul my safety gear after this happened to my friends as at MRLS back in January... https://www.miataturbo.net/attachmen...ine=1428689230 |
Tomorrows project
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https://www.miataturbo.net/attachmen...ine=1428797998
To do list for tomorrow:
This should address the steering issues I have with my wonky intermediate shaft and I'm really hoping it fixes the clearance issues I have with the 11.75" rotors and tie rod ends. I'll never have to mess with the RB brace blocks again either! :rofl: |
Needs moar squaretop. ;)
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Sounds like a solid day's work! So much gelatin.
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Front end swap was a success on most fronts.
Street driving impressions Bear in mind this is still on an eyeball alignment. Surprisingly, the front end feels more plush with the Xidas on the soft setting. I was concerned the bushings would increase harshness, but it sure doesn't feel that way to me. Turn in feels great, really happy with the decision to run the bushings. It may be placebo effect, but it sure feels like the bump steer has been reduced with the NB parts. The NB manual rack is really, really sweet driving. I picked this one up for $100 bucks which is apparently dirt cheap since they are kinda hard to find. I can't speak to how much effect the Miataroadster delrin rack bushings make, but there is zero slop in the steering. AWR sway bar mounts took a little persuasion to install (maybe this car took a light front end hit at some point) but they are worth it just to ditch those god damn brace blocks. Bad news Interference issues with the 11.75" brakes and the tie rod ends continues. The NB knuckles actually made it worse, I think the NB geometry changes had the same effect as making the tie rods end taller, pushing the bottom of the rod end further into the brake rotors. We tried 3 different tie rod ends (LE, TRW, Moog) and 2 different wheel bearings all with the same outcome. Ended up having to grind the tie rod end for clearance. I am out of ideas other than replacement. :facepalm: Just going to have to wait for V2 Trackspeed kit to come out and swap out the hats and brackets. Next project will be installing the Megasquirt and shoring up all the safety gear so I can run some more track days. Emailed TC Designs last week, i'm planning on having them fab up some custom mounts for my new Racetech seats at the end of the month. Then its motor time. |
NB front subframe has higher roll center. Less adverse affected by lowering. NB knuckles also have a bit less bump steer at bottom of curve than NA. Add in NB outer tie rod ends and the overall change on a lowered Miata is significant.
Urethane bushings, when installed correctly, actually improve compliance over big hits. More road texture comes through though but that's a bonus for performance driving where you need to feel the load at the tread more finitely. |
Nothing like an instant explanation for what my impressions were! Thanks Emilio!
Any ideas on the brake rotor interference issue? I know Dcamp2 on this forum has had the same issues with his 11.75s but it sounds like its really uncommon. |
Originally Posted by OneTwo
(Post 1224575)
Nothing like an instant explanation for what my impressions were! Thanks Emilio!
Any ideas on the brake rotor interference issue? I know Dcamp2 on this forum has had the same issues with his 11.75s but it sounds like its really uncommon. |
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Work has been keeping me stupid busy lately but I have had a few new gadgets show up to play with.
https://www.miataturbo.net/attachmen...ine=1430483166 Can't help but find it ironic I paid more for the shifter than I did for the 6 speed! Install was really easy. I decided to insulate my little shifter plate and painted it body color with some fancy little fasteners. https://www.miataturbo.net/attachmen...ine=1430483166 Man does this shifter improve the 6 speed. It felt pretty good before, but now any notchiness it had is gone, shifts seem a bit more accurate. 10/10 this thing is as good as people say it is. Took the car out for a nice drive out to the coast and ended up stuck in a 4 hour traffic jam from a huge air/car show. Clutch is broken in. My GF and I pulled off and stopped to grab some lunch in Half Moon Bay as a respite from the traffic. found these 2 guys parked next to me when I left. https://www.miataturbo.net/attachmen...ine=1430483166 Kinda cool! |
Loving the clean build, jealous of the cars you get to pick from rust free in California. I've been skeptical about those shifters, but may need to get one now for my street MSM.
Comment/question, I've had leaks at the cat/downpipe connection that would make me hesitant to put a wideband in the cat. Are you running the OEM sensor still in the stock location? |
Originally Posted by slammed200
(Post 1227941)
Loving the clean build, jealous of the cars you get to pick from rust free in California. I've been skeptical about those shifters, but may need to get one now for my street MSM.
Comment/question, I've had leaks at the cat/downpipe connection that would make me hesitant to put a wideband in the cat. Are you running the OEM sensor still in the stock location? I'm just 45 minutes north of you and i'm installing mine this weekend. When the car is buttoned up otherwise, you're more than welcome to give it a try just to reinforce that it's worth the money. :) |
I am running the OEM sensor, and I have been fighting the exact issues your talking about.
Wideband readings have been pretty inconsistent, I am planning on moving the WBo2 sensor up into the stock location when I install my MS in the coming weeks. I just wanted to try out the cat location on the stock ECU to make it really easy to swap things around for emissions compliance. |
Originally Posted by concealer404
(Post 1227944)
I'm just 45 minutes north of you and i'm installing mine this weekend. When the car is buttoned up otherwise, you're more than welcome to give it a try just to reinforce that it's worth the money. :)
Cant wait to get my 4.3 with Delrin bushings in. Thats should make it even better. |
Sounds good to me Ben, I may make it up to the Indy region for some autocross between races since the local Columbus region was shutdown (lost our site). Do you do any events with them?
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Originally Posted by slammed200
(Post 1227953)
Sounds good to me Ben, I may make it up to the Indy region for some autocross between races since the local Columbus region was shutdown (lost our site). Do you do any events with them?
Yep, i'll be trying to hit all of them once i get the car sorted. Biggest issues right now are that i don't have seats or harnesses installed, and the brakes need some sorting. Will need an alignment after the suspension is installed as well. Should come together quickly now, though. Figure 2 weeks. |
Well after 149,993 miles the motor finally gave up.:dealwithit:
I took the car down to a friends bachelor party in San Louis Obispo about 3-4 hours south last weekend. Everything was good until I got off the freeway on the way home. Pulled up to a stoplight and noticed the OP dummy gauge dropped to zero at idle. I was only 3 minutes from home so I headed there and parked it. On Monday I checked the oil, the trip home had eaten up a bit, so I topped it off and fired it up. Motor seized in about 10 seconds. Pulled the plugs to double check, car won't budge in gear. At least it blew up in the garage! :giggle: So that's the bad news. The good news is that I have been collecting parts for new heart for awhile now and assembly has already commenced. Pumped to get it together. I wanted to build something that will easily reach MBT on crappy CA 91 and something I could slap a Rotrex on in the future. I left some NA on the power on the table. It's gonna make what it makes but it should be fun. 84mm 9:5.1 Supertechs w/wiseco XX rings - Coated (Final comp around 10:1) Carrillo A-beams ACL bearings Boundary Street/Strip 949 Dampener (thinking about getting the 36-1 wheel since it sounds like support is coming for it) Fully "built" BP4W head +1 SS Supetech intake valves +1 Inconel Supertech exhaust valves 252*/256* Tomeis SUBS Supertech light doubles M-Tuned reroute Cam gears (Maruha or Toda, can't decide) 2.75" Hytech exhaust - Need to add a muffler to it MSPNP2 Block went to the machine shop yesterday, and the head is already ported and waiting. Stay tuned for photos of parts fondling as they arrive! |
Get it up and running quick. You have a package coming that is begging to be tested on the track.
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When you say MBT on 91 you mean N/A right?
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Originally Posted by 18psi
(Post 1230075)
When you say MBT on 91 you mean N/A right?
I didn't want to push my luck N/A with 10.5:1, I will gladly sacrifice a few HP to keep the motor happy on CA pump. |
Originally Posted by aidandj
(Post 1230073)
Get it up and running quick. You have a package coming that is begging to be tested on the track.
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If that car isn't ready by October then.... You'll be better off stripping it and setting the chassis on fire.
You know what I'm talking about. |
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Got 2 packages yesterday, one from Aidan and one from Japan....
https://www.miataturbo.net/attachmen...ine=1431449508 |
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Well I have been working on tearing the motor out of the purple car, and very much missing driving a Miata. So I did what anyone on MT does when they are deep into one project. Buy another!
I made a bit of an impulse buy and picked up this 95 from Club Roadster to rescue from the stancenation. Its a tiny bit rough around the edges but I think with a little work this will do nicely as a stand in beater track car for a bit. Meet Ruprecht. https://www.miataturbo.net/attachmen...ine=1432477463 95 Montego Blue with an auto to manual swap. 147k. The PO REALLY did a number on what was likely a very clean car. Parts haul below. 6 speed 4.30 Torsen 949 organic twin disc MSPNP2 LC2 WBO2 Jenvey IRTBs Carbon air horns MSM bilsteins Goodwin V4 11" front brakes Crappy Bride replica M2 Fuel lid Beatrush cooling panel BFW GT3 6 point welded in FM Butterfly brace Goodwin RS3 cat back JR header AEM FPR Mishimoto rad/fan set up M-tuned reroute Garagestar pullies Morimoto HID kit Moors catch can All the factory parts he pulled off New thread for this car once I make some headway on it! |
Woah nice..
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Been a long time since I updated this thread. I'll just leave this here.
https://www.miataturbo.net/attachmen...ine=1449765111 |
Damn you. Now I drooled on my keyboard. Again.
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https://www.miataturbo.net/attachmen...ine=1451405678
And its in! I have been slowly pecking away at finishing everything up this week. Waiting on a few final parts to come in, and the square top and VC are out for powder coat. :drool: |
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Slowly making progress getting this thing back together. Seems like every step closer to getting the motor back together I decide to change some minor detail. Found that one if the valve cover bolts was stripped so that needed a helicoil.
https://www.miataturbo.net/attachmen...ine=1453761339 Got the new exhaust in yesterday too. https://www.miataturbo.net/attachmen...ine=1453761339 Eventually I'll have the tip replaced with something smaller diameter, but it doesn't look as bad as I thought it would. |
I'm going to guess 164whp Dynojet SAE corrected on CA91
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Originally Posted by emilio700
(Post 1302449)
I'm going to guess 164whp Dynojet SAE corrected on CA91
That's about what I'm figuring too, a (hopefully) bombproof 165ish on pump gas. Maybe 170 on corn. Corn + C30-71? Who knows! |
If Church tunes it, divide by 1.1 for SAE corrected Dynojet value
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Probably going on a dynapack at Blacktrax in sunnyvale. I'm guessing 145-150 on that dyno, it reads really low.
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Motor is broken in and tuned. Finally hit the dyno yesterday at Blacktrax. It's a heartbreaker, typically about 8-9% lower than MCE at Thunderhill.
Came in right about where I expected. https://cimg0.ibsrv.net/gimg/www.mia...92d96617a1.png Its a riot to drive! Some corn and a test pipe should wake this thing up even more. I also picked up a TCM hard top and gave it a vinyl wrap. https://cimg4.ibsrv.net/gimg/www.mia...d457132dc.jpeg |
Finally. This thing is awesome.
How was the vinyl wrap, i've never tried but want to. Was it your first time? |
I worked at a sign shop a long time ago so I have some vinyl skills. With 2 people and a hair dryer it's pretty damn easy.
This is the first time I wrapped something this size and I did it by myself in 45 mins. It's not flawless, but it looks good enough for me. C group MMRLS is gonna be fun this year. |
Originally Posted by OneTwo
(Post 1345970)
I worked at a sign shop a long time ago so I have some vinyl skills. With 2 people and a hair dryer it's pretty damn easy.
This is the first time I wrapped something this size and I did it by myself in 45 mins. It's not flawless, but it looks good enough for me. C group MMRLS is gonna be fun this year. Mine is currently plastidipped and looks quite decent IMO. Been wanting to wrap it for a while though. |
I think I paid $70 on prime for the vinyl?
Don't worry, we will be the 2 slowest guys in C group :) Need to get my sadfab durlin kit installed now. |
Looks good man, car should be a blast.
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Originally Posted by turbofan
(Post 1346034)
Looks good man, car should be a blast.
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Dyno vid!!
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When do we get to go on a joy ride?
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Originally Posted by Twibs415
(Post 1346204)
When do we get to go on a joy ride?
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After turning my old hood into a taco because I'm an idiot and I forgot to pin it :cry2: I replaced it with a buddies black factory aluminum hood.
Decided to go a different direction on the the hood venting this time. Might not be everyone's cup of tea, but I like it. Most importantly it works. Cruise temps dropped 10*. Behold, more shitty pictures I took! Mocked up getting ready to get my rivet on https://c2.staticflickr.com/9/8677/2...02467785_c.jpg https://c4.staticflickr.com/8/7645/2...1aed6b5a_c.jpg Finishing up the installation https://c8.staticflickr.com/9/8402/2...1616bb07_c.jpg Painted and installed with home made gurney flap https://c2.staticflickr.com/9/8645/2...e91d3531_c.jpg |
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