1995 NA8 ISR 3871r Turbo Drift Miata
 

Hello. My name is Billie. You can find me/my build on instagram (@purrfectdrift) I have owned my 95 na8 miata for about 2 years. I bought the car in Oct of 2018, it was owned by a older gentlemen that had recently passed away. The guy didn't have any children or family so the car went to a neighbor of the guy. The new owner gave the car to his son who didn't even drive stick. The old man had been the only owner and drove the car over 309k miles and it had shown. The softtop was permanently sealed with weatherseal caulking, also around the antenna was caulked, the coolant was brown, the windshield was cracked, the car had a bunch of rust on the usual spots, but i didn't want to buy a clean low mile miata, i wanted a beater miata that i could bring back to life, only to take it to a drift event and hit the wall with it, i only paid $800 for the running driving car that you see below. If there is any interest i could do a little write up of my car and my build, here is a photo dump for fun.

For pretty much a year i slowly cleaned and modified the car to get it to where you see it. I swapped the smokey, tired motor with a ~50k jdm 1.8 motor from an automatic miata from JDM Orlando. I had done 2 learner day drift events with the old motor and after 2 open session events with the newer JDM engine i knew i needed more power than the stock 1.8 was putting out. Too bad i ended up doing exactly what i wanted to do at the end of my fourth track day, which was tap the concrete wall, but ended up hitting it too hard. I needed to fix the car by replacing the rear subframe, another windshield, and ended up cutting off a kinked frame rail in front of my strut tower.

I purchased my turbo kit from Taylor Ray the youtuber when he switched his miata from turbo to V8. The turbo is an ISR 3871r, the kit was a mix of the begi and FM stage 3 turbo kit. I bought the turbo, manifold, intercooler and piping, 440 red rx8 injectors, and tapped oil pan from him. The clutch is an ACT 6 puck unsprung clutch. It is running on a standalone Megasquirt PNP 2 from DIYAutoTune. The car was dyno'd at Gringospeed in Orlando,FL on January 22nd, it made 209 hp. I have put about 40 miles on the new setup and there is a drift event this Sunday at OSW. Wish me luck.

https://cimg5.ibsrv.net/gimg/www.mia...b7d7e52100.jpg
https://cimg4.ibsrv.net/gimg/www.mia...9fee07e512.jpg
https://cimg9.ibsrv.net/gimg/www.mia...627f1f8694.jpg
https://cimg3.ibsrv.net/gimg/www.mia...6fa3bf3aa3.jpg
https://cimg3.ibsrv.net/gimg/www.mia...44524c3942.jpg
https://cimg3.ibsrv.net/gimg/www.mia...6cd0ba6d61.jpg
https://cimg3.ibsrv.net/gimg/www.mia...4e8b8e57c6.jpg
https://cimg6.ibsrv.net/gimg/www.mia...ef2a6b89fc.jpg
https://cimg9.ibsrv.net/gimg/www.mia...a615d1363b.jpg
https://cimg2.ibsrv.net/gimg/www.mia...b4254ce07a.jpg
https://cimg4.ibsrv.net/gimg/www.mia...4c7321a32f.jpg

https://cimg2.ibsrv.net/gimg/www.mia...17202f8810.jpg
https://cimg6.ibsrv.net/gimg/www.mia...e8c68448e7.jpg
https://cimg8.ibsrv.net/gimg/www.mia...929e5dfd63.jpg
https://cimg1.ibsrv.net/gimg/www.mia...0f60e529da.jpg
https://cimg3.ibsrv.net/gimg/www.mia...117a146518.jpg
https://cimg8.ibsrv.net/gimg/www.mia...3035173d96.jpg
https://cimg2.ibsrv.net/gimg/www.mia...22166bbeea.jpg
https://cimg5.ibsrv.net/gimg/www.mia...4ca877a02e.jpg

https://cimg8.ibsrv.net/gimg/www.mia...d1148872fa.jpg
https://cimg2.ibsrv.net/gimg/www.mia...79fe7daed9.jpg
https://cimg3.ibsrv.net/gimg/www.mia...026e70ea6f.png
https://cimg3.ibsrv.net/gimg/www.mia...d7edddab54.jpg

https://cimg2.ibsrv.net/gimg/www.mia...9fc0cf0ac5.jpg

https://cimg8.ibsrv.net/gimg/www.mia...10f82fc6d9.jpg
https://cimg8.ibsrv.net/gimg/www.mia...dd15a495f9.jpghttps://cimg7.ibsrv.net/gimg/www.mia...7451a576ed.jpg
https://cimg4.ibsrv.net/gimg/www.mia...b10dd4f124.jpg
https://cimg0.ibsrv.net/gimg/www.mia...cc98355f62.jpg
https://cimg7.ibsrv.net/gimg/www.mia...24f04576fe.jpg
https://cimg9.ibsrv.net/gimg/www.mia...50ff3471c3.jpg
https://cimg2.ibsrv.net/gimg/www.mia...5901eb08e2.jpg
https://cimg3.ibsrv.net/gimg/www.mia...240e16eab1.jpg
https://cimg0.ibsrv.net/gimg/www.mia...20ecde1a8b.jpg

You have cleaned the old girl up quite a bit; looks like it will be a lot of fun!

Well i was drifting on the oval and my diff arm broke. Luckily i had a friend at the event that parts miata's. He let me drive his miata home and he put mine in his trailer. I plan on pulling another 1.8 open diff out of a car he has, put it in mine to drive home. Once i get the car home i will need to pull it back out and swap the welded core and reinforce the arms so this doesn't happen again. Would it be smart to try to weld my broke one back together and keep it in case this happens again? Oh and someone did a barrel roll against the wall on their first lap of the day
https://cimg5.ibsrv.net/gimg/www.mia...9335850cb8.jpg
https://cimg6.ibsrv.net/gimg/www.mia...8a71a15b38.jpg
https://cimg8.ibsrv.net/gimg/www.mia...8452e09fe1.jpg
https://cimg9.ibsrv.net/gimg/www.mia...d94b69fca5.jpg

I guess the broken housing could be fixed. I'd either get a reinforcement kit that bolts on or the reinforced housing from Treasure Coast miata that has plates welded on, on that side for whatever housing you're going to run. Another alternative is an RX7 housing which is beefier.

:cjerk::cjerk::cjerk::cjerk:

New thread title - "Drifter with Pickle Rick T-shirt makes 200hp with 700hp Capable Turbo"

At least he has an air filter. Props for that.

lololol


But this is exactly how my build was supposed to go. Simple and cheap. minus the smelting furnace blower.

But guys, big turbos flow more air!

Joking aside, I would totally wear a Pickle Rick shirt.

I saw what the treasure coast guys did, i like that, i was told the bolt in kmiata was a joke, thats why i didnt buy it. If i would of had it in im sure it would have cracked but i could still drive home. oh well lesson learned. I will just reinforce my new diff with aluminum plate like what the Treasure Coast guys do. I guess i will ask the guy who does that if he is up to welding the arm back on and reinforce the broken diff as well. I was told about the rx7 diff but i couldnt find anything close or cheap and already have another 1.8 diff lined up.

The turbo is not the limit of power. My tuner said if i put a bigger fuel pump and bigger injectors i could go up in horspepower but I dont need 700 hp for what i am doing with the car. The previous owner of this turbo blew up three engines cause of bad tune or intermittent injectors issues or whatever. he was closer to 300 hp. I love the power the car has now and once i am comfortable and ready for more i can add the said stuff and retune for more power.

I do not know a lot but i know some people that had debris destroy their turbo cause no filters.

I also wear DBZ shirts and have a bulbasaur pop socket i am a nerd, who the hell cares

This website is a wonderful source of information for basically anything you'd want to accomplish on your miatacar. However, saying you drift a miata publicly on this website is akin to telling your parents that you're gay in the 60's. If you don't Trackday Bro then fuck you.

Just live your truth privately in peace. Words of wisdom from a fellow enthusiast.

https://cimg1.ibsrv.net/gimg/www.mia...70b98a126e.jpg

^sortof, but not if you're actually good at it. Go to Robertw's thread, or Jeff Abbott's.

The hate for drifters comes from folks who buy decent cars then run them into walls. This guy is at least doing some level of prep, but the turbo size choice is entirely comical.

https://cimg3.ibsrv.net/gimg/www.mia...8ad2d5ff4d.jpg

Imagine making less power on a 1.8 @ 12psi with that setup than many SR20/1.6 combos make at same boost.

Just i m a g i n e.

Honestly don't even understand how that turbo on a 1.8 at 12 psi is only making 209 whp

it doesn't hit 12psi till 7200 rpm.

Should still make more than 209 whp at 12 psi lol

Huge restriction somewhere. stock exhaust? :hahano:

Actually, per my understanding, 209 is right about where it should be.

regardless the turbo is way oversized