+TheCarPassionChannel Your numbers are impressive for an old stock 1.6, congrats!  My 1/8mi best speed is 93.61mph on this run: kzfaq.info/get/bejne/gtFhdpdqsNLVlJs.html The car has never been on a dyno. Based on weight and 1/4mi trap speed, math & physics gives 325-330whp. I'm pretty sure there is a significant amount of safe power left on the table that I could get with some dyno time. The tune on this run is particularly terrible and it is hitting boost cut. That being said, it sometimes gets wheelspin in 4th. Time for excuses. The 6sp/4.10 combo make the gears super short. It's difficult to 60' and hit shift points. It also has 350lb springs in the rear which are terrible for launching. The best run to date is a 12.21 @ 118.11mph. Going to go back to the track someday with better tires and possibly softer springs. FYI, taking your 1/8mi ET and multiplying it by 1.55 is extremely close to what your 1/4mi ET would be. Lag? Run the biggest most open exhaust that you can and make sure the wastegate shuts completely. After that, get more aggressive with the pre max boost tune.

ttssm2 Thanks for the reply! Your car looks like it would be sooo much faster with a 3.6 or even a 3.9 would help I'm sure. I'm running 5-speed + 3.9 torsen. My GT2554R spools exponentially faster then my T28 churbo and combined with flatshift it pretty much feels like a V8 between gears. I'm hoping to go sub 8.5's tonight, I think my 3rd gear tops out right around 90mph @ 7400 so I only have to deal with 2 shifts. I normally run closed loop boost control which is what I've had the best results with as far as spoolup, light years faster then wastegate or even open loop. I have 392# rear springs and nice stiff NT01's so those work against me but it will still be a fun time. I'll tag you when I get the clips up if you want to check it out.

+TheCarPassionChannel Good luck and have fun! Post up a video and put the link here. I have no idea what your powerband is like but try lower shift points and doing the evil 3-4 gear change. Unfortunately I'm in 5th gear through the traps. This video shows my $35 launch control and flat shift in action. Between shifts it does a fuel cut and it makes things easier on the transmission than normal street driving. I could make an unlimited number of passes with no shock on the trans provided that I don't misshift. kzfaq.info/get/bejne/h95gqMd2rr_DkY0.html

ttssm2 That thing sounds so good! Makes me wonder what my bottom end can really take as long as the tune is kosher. I'm playing around with an EBC setup that makes the boost creep from 13psi to 15.5psi from 5500 to 7000RPM, basically I don't want to make any more peak torque since I'm good friends with my 5-speed (231wtq @ 5200) but I want to try to keep the torque flatter in the top end since all it does is drop off. Kudos for pushing the stock-rod envelope and making the rest of us feel safer, haha.

Old skool miata dad 😎

+TheCarPassionChannel Congrats! With a doable 2.0 60' you'll break into the 12's. The 5sp gear ratios are way more pleasant than the 6sp. Seems that your car has about the same power as mine did on 93 and a 5sp. Video:kzfaq.info/get/bejne/btqRnruEtsi3gWQ.html What is your mt handle? Skeptics?! The ones that think I'm lying, the car doesn't exist and that is just isn't possible to make more than 325whp on a really old stock motor? What skeptics? :)

ttssm2 Hahaha you know how MT is. It's "1993z32" and it seems all they care about is the 1/4 mile trap speed for proof of power, but I can dig that. I'm excited to run this thing and see what it can do. My 2554R seems to be running out of air, but just for fun I picked up a GT2860RS to see if this stock 1.6 can break into the 300's. I'll be back with video and results!

Edit: Wow I just realized your 1/8 mile trap from that clip is nearly identical to mine. This makes me confident. :)

Let's go miata dad

Yes, bone stock internals, head never off. 230k+ miles. Only thing not bone stock is the exhinatke cam. The best run of 12.21@118mph was with stock 1.6 coils. After switching to the Yukon LS2 coils, there was a seat of the pants tq increase but haven't been to the track in ages. This is on E85, 18-19psi, overly conservative timing, massive intercooler and water injection. Good luck and have fun!

The airbag has been removed! I cut a slit in the steering wheel cover and shoved the phone belt clip into it. I drilled a hole in the belt clip for the lens. You can see how it's positioned from the wide camera shot. Low tech, low price and quick installation.

+Troy Sebo I suggest you size your fuel system for your ultimate E85 power goals from the beginning. The higher volume fuel pump is the same cost. Buy the big ID or other Bosch EV14 based injectors. I do not like running high base fuel pressures for a lot of reasons. Copied older reply:The relationship between fuel pressure and fuel volume is often overlooked. A 255lph @ 43psi (AND at 13.5V) drops off a LOT when you run a high base pressure and then add boost on top of it. So, size the injectors big enough to keep the pump in its operating range. While NA I ran the stock pump/injectors. On 93 it was the Walbro 255hp and 550cc RX-7 injectors. For me, they were maxed out at 290whp. When converting to E85 I put in 1100cc/min injectors, same pump. In a nutshell I'd get the HP255, 1,000cc/min+ injectors and be done with it.

@@ttssm2 - After a light search I am coming up short on finding a HP255 kit for the 95, do I just buy a HP255 pump and separately purchase a Walbro FP install kit?

@@ttssm2 - HP255=LPH255?

www.diyautotune.com/product/255-lph-fuel-pump-for-1994-1997-miata/

+Clayton Bridges Yes, 6sp. The 5sp sheared a couple of 3rd gear teeth on a roll on. To be fair, the 5sp was fine on when power was ~286whp. The swap to E85 bumped the power up a significant amount which is when the 5sp gave up.

+OleStephens It is alive! I've been meaning to do a proof of life video. It burns oil and tires, otherwise there have not been any changes since Feb 2011 when the E85 conversion happened.Build thread www.tinyurl.com/bangforthebuckturbomiata Everything that is power related is in that thread.

16 psi stock internals?

Conservative tune on E85. Trapped 113mph when it was running 93.

6 speed tranny? And what was your best time with 93 tune? Nice setup btw.

Josh O. Yes, 6sp. At

ttssm2 Still running the wolf ECU? we're running an old MS 2.2 on our project and trying to teach ourselves to tune. Haven't made the jump to E85 yet, trying to get the 93 tune dialed in first.

MrOkami Yes, still using the Wolf 3dV4. If you have E85 readily available, upgrade your fuel system and run it. I picked up a significant amount of power over 93.

Obsolete and terrible Wolf 3dV4.

Stock block and everything else. Not rebuilt. Head never separated from the block. I've been very very lucky so far.

Hey if you have like 8-10 PSI do you need to upgrade injectors. or the fuel pressure

Ubaidullah Mohammad There are a lot of variables involved. I personally would upgrade both. Imo, the fuel system needs to have extra capacity for safety and isn't a place to take chances. A Walbro pump is cheap, injectors can also be inexpensive. After that it comes down to a properly tuned ecu. You need fuel to make power!

ttssm2 Thanks for ur help! also What was your previous injector size and pressure compared to what u put after putting a turbo?

Ubaidullah Mohammad(some unsolicited info first) The relationship between fuel pressure and fuel volume is often overlooked. A 255lph @ 43psi (AND at 13.5V) drops off a LOT when you run a high base pressure and then add boost on top of it. So, size the injectors big enough to keep the pump in its operating range. While NA I ran the stock pump/injectors. On 93 it was the Walbro 255hp and 550cc RX-7 injectors. For me, they were maxed out at 290whp. When converting to E85 I put in 1100cc/min injectors, same pump.

Also did the motor ever blow?

It has a stock 6sp. The 5sp was fine before the E85 conversion. On a 3rd gear half throttle roll on it ripped teeth off the gear. It was fine on 93 and ~289rwhp.

Ha! Not yet! Super busy so it doesn't get a lot of miles but when it gets driven, it is vigorous. Lots of performance upgrades planned like adjustable rear upper A arms, traction control, softer springs, etc. The car still runs the same basic setup from 2008. Same ebay turbo, SS Autochrome manifold, same wheelspin in 4th gear.

@@ttssm2 hahaha that’s awesome man!! Thanks for the info!

i think he failed or sum bc 20 sec 0-60 does not sound right for 250hp lmao

1.8 stock engine, T3/T4 eBay turbo.

This car has never been on a dyno but using calculators based on trap speed and weight, it's around 326whp.

Greg Peters On this run the weight is 2493lbs and the trap speed is 117.8mph. My calculator shows 318whp. The last time at the track it was 2568lbs at 118.11mph which gives 330whp. What calculator and actual weight running down the track did you use? Either way, the trap speed matches other cars that have been on the dyno. It's a STOCK 1996 1.8 with 228k miles except for the exhintake cam. I'm willing to do a pass down the track then a teardown if someone wants to put up protest cash. :)

ttssm2 Honestly I deleted my comment after reading all 9 pages of your thread on MiataTurboNet. Props on the build, I've spent 3x as much money and make 100 less HP, lol. Seriously though, get that thing on a dyno just to show what a stock engine can do! You're still running non-intercooled/water injected?

Greg Peters Ha! Sorry you had to read it, even I get bored by it! It was non-intercooled for only a few weeks until I figured out how to make the way oversized intercooler work. Currently it is intercooled, water injected and on E85.

Awesome numbers for a stock engine. Hoping to get into the low 13's with mine, it's around 220whp and 2200lbs.