Eunos Roadster ITBs & HKS High Cam 264° 8.7mm & 10.5:1 Ported Head [ASMR] (とうげ) NA6CE Miata MX5
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- Опубликовано: 9 июл 2024
- 0:00 Intro
1:16 Engine Start
1:37 New found acceleration...
2:17 Launch
3:00 Touge Start
4:56 Short shift reverse Touge
6:37 Overtake
7:03 Outro, and more revs
Recently added some HKS high cams and a skimmed and ported head that raises the compression ratio of the B6ZE(RS) to 10.5:1. The sound and tone of the engine has changed significantly and the top end is great, I've dialled in the fueling and was able to increase the ignition timing to great effect. The audio is taken from just the Zoom H4 mic as seen on the dash.
Spec:
JDM B6ZE(RS)
Toyota Billet 4A-GE 20V "Silvertop" ITBs
Hummelink Billet ITB adapter manifold with 1/8npt vacuumports
70mm velocity stacks
ITG JC40 Sausage Filter & Backplate
0.040″ Head Skim,10.5:1 Compression, ported IN/EX, 3 angle cut valve job
HKS High-cams IN/EX 264 duration, 8.7mm lift
TODA Free adjusting cam gear (Cam timing IN 108° / EX 105°)
Link G4X Plug In ECU
Denso EV6 (1.8 VVTi 265cc injectors)
NGK BKR6E-11 Spark Plugs
NGK RC-ZE21 Silcone Spark Plug Cables
Racing Beat 4-1 Manifold & Decat / Racing Beat 200 Cell Sports Cat
RS-Harada / BRAVE ツナシマオートサプライ 60Φ All Stainless Steel Exhaust (60Φ main pipe and 70Φ Exit) 
Авто/Мото
I like the joyness of this engine to rev
Impressive built, that's by far better tasty wise to keep it NA. Enjoy man !
Im planning to add ITB on my ND but nothing is available yet😢
Absolutely loved the vid mate. Super happy for you & the work of art that youve created ❤️❤️
My god thats stunning 😍😍
Godly intro, very classy vid! Also lovely Casio ;)
Thanks man 🙏🏻. I had the black og Casio as a kid in the 90s so thought I'd upgrade haha, indestructible 😂
I really love the scenery of the British countryside :)
What a beaut, the exposed cams looked so impressive in the garage opening scene.
Keeps me motivated to improve my own NA! 😃
incredibly cool
insane car and awesome driving, love to see you upload keep up the great content! :)
Thanks, this was probably me getting a little too excited so will probably tone it down on the Mexican road. Track day booked for September but hopefully squeeze some more stuff in. TODA lightweight flywheel is up next, the response is already crazy so going to be 🤯
@@batousan_ Track day with your setup is gonna be nuts, and lightweight flywheel will take the response to the highest level. I bet it will feel magical to drive lol
Super clean
great build
and love your name, i'm a fan too😊
very very nice sir
tht sound 🤤🤤🤤🤤🤤🤤🤤🤤
I think you need a "project 180" as well 😅
@@batousan_ ive got the mk1 which i havnt finalized a plan with yet so maybe 😉.....
what kind of camera do you use? I like the vintage and cinematic vibe it got
😍😍
Hello from cousin B6!!
Ugh incredible roadster man i drooled all over this 🫠 do you know how much of a deep dish your nardi is and what diameter? Having rubbing issues with my wooden 350mm nardi that came off a eunos and i don’t wanna downgrade to anything less of bad ass so i wanna go for a smaller nardi and possibly a deep dish? Is that the standard nardi boss or something shorter/extended?
Thank you man! Mines a 350mm, depth to wheel rim is 138mm including boss, the nardi depth is approx 68mm. Hope that helps 👍🏻
Is this near "The Motorist" by Leeds? Roads look familiar. If not and youre in yorkshire, the motorist is a great place with great roads around it
Its not in Leeds no, I'll check that out whenever I'm up that way though :)
how much HP did you get out of that 1.6? because i think of wapping my 1.6 to an 1.8 first and then do all the work to it? Would you recommend to stay 1.6? i know they are a bit mor fruity and reving but lacking in power i've heard. My 1.6 115hp is ok most people say swap for an 1.8. Its like 1-2k extra kost but is a jump start to 130hp. :D would love to hear your opinion on this :)
I haven't yet dyno'd it, the ecu is road and track tuned but would probably benefit from some dyno time when I get round to it though. At best without touching the block 100hp per liter is usually possible on a 1.6, as I've done this gradually over time the parts crossover from 1.6 to 1.8 is not possible so I'd have to start over which is quite the expense. If you are starting from scratch and looking specifically for power then I'd advise the 1.8 VVT. I just really like my original engine and how it responds/sounds, had the car for 10 years and done about 67,000km in it myself with 220k on the clocks, even when I finally overhaul the block I'll keep the 1.6 but use new pistons etc. It goes well enough even if it has half the hp the Subaru has 😅.
@@batousan_ thanks for the detailed answer you are the man!
What a lovely car.
What does it rev to?
Thank you 🙏🏻.Max RPM is set to 7550, still on HLA and OEM valve springs so pushing it a little but the soft limiter I have set starts around 7300-7400ish.
How is the low end torque? Street manners and all that?
Drove 4 hours in it yesterday mostly motorway with some smile inducing roads at either end. Around 120kph crusing at 3500 to 4000rpm is not quiet but no problem leaving it in 5th and moving around traffic. The link ecu makes it really smooth and I've spent more time on the driveability mapping than any pro tuner would be practically be able to do (ie keep your car through all 4 seasons of the year lol).
Torque is fine don't need to rev it out to make progress, and its a joy to drive short shifting too, but it hard for me say given I'm used to my other car which is a 350hp 2.5L turbo boxer 🤷♀😅
I just went turbo but I’m kind of regretting not going with itb’s instead
The Subaru fulfils my turbo needs, in an ideal world i'd have 2 Roadsters one low boost ,comfy, slammed turbo for cruising around and this one for being a hooligan.
I love miatas had like 4 to 5 na honestly the only thing I hate about them is they break alot been threw engines and transmission and a few diffs love these cars but hate fixing them over and over probably sell the one I have now soon
Damn, thats such a shame. This has 220kms on it at the moment, original stock block and transmission and its been driven like the video demonstrates both on track and the road. I'm under no illusion it will last forever but I've found it really reliable and easy to work on so far due to space/access/design.
I think once you go turbo and put too much boost down low it does have a habit of eating transmissions and the risk of engine issues. Its one of the other reasons I stayed NA on this, just so much lighter on the car (still using a 1.6 clutch too). I have now fitted a Torsen 4.3:1 with the larger ring gear/diff though.
I think I busted
"touge" is a mostly straight road.
The first clip and the start is a straight, maybe watch the rest? Round here that's as good corners you'll get, I wish we had better 🙏🏻
i watched the whole thing. Its mostly straight.
and the corners are 20 degree turns most of the way.
Go look at a proper touge as they are in Japan where theres few areas that are straight for more than 50m and the rest of it is curves.
Gunsai touge and the touge course at Ebisu circuit are prime examples
@@Agraviadore I'm sorry you didn't enjoy it, I wish I could do better but this is sadly the best we have, a touge is loosely defined as a "pass", there is no clear definition of how tight the corners need to be and it can differ depending on region. To me the touge is a your nearest road with the most corners that helps you de-stress your life.
I've been to Japan a number of times and I have seen and been on roads that you are talking about, I've watched so many old BM and Vopt through my teenage years and still now as a adult, what you start to see is each region of Japan has some variation in roads as the topography changes based on region but nobody argues about what the touge means to them.
Enjoy what roads you have and drive your car. 頑張って✌🏻
@@batousan_ it was a good video. I was just expecting some proper twisty roads.
I kept waiting for the first tight turn and it never came.
I guess you'll have to find somewhere more mountainous or rocky
@@Agraviadore Its a 8-12hr drive to mountains, this is 10mins away and I know it well, the only downside here is traffic.
Do you find the roads are absolutely shocking due to poor investment? There is a longer version of this but I stopped running that section due to subsidence at the edges (the road is literally falling away) meaning you'd have to put the car at the centre of the road to drive fast which is not something I do, I had to replace one of the Work Equips due it taking a big hit on that section.
If I took the 8-12hrs I'm not sure I'd have 4 straight wheels by the end of it, I have been to better places in this car but the last time, I took the Subaru instead, there are actual bits of road missing and craters that would swallow the Mazda.
Also bear in mind I'm using a 10mm Wide angle lens which really straightens out the viewpoint, some of these corners.