Mazda MX-5 | 200 HP N/A | Quick guide & specs
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- Опубликовано: 5 окт 2024
- Sharing specs and experiences from my 200 HP NB Miata.
BP4W Engine build list (no ITB):
1. High compression 11:1 Supertech pistons P4-MA84-P10
2. Supertech valves in: +1mm (MAIVN-1206)/ex: +1mm (MAEVN-1206)
2. CatCams camshaft (in: 270deg, 11.5mm, ex: 260deg, 11.0mm)
3. Shim Under Bucket Supertech CF-30/16LC
4. Valve springs Supertech kit SPRK-MM18S
5. NBfl square top inlet manifold
6. Head inlet ports matched with manifold. Manifold main port matched with TB.
7. 64mm Skunk2 TB + CAI box from I.L. Motorsport
8. Custom exhaust manifold 4-1
9. 60mm through exhaust with I.L. motorsports end muffler
Thank you for opening up some alternate thinking for me on one of our track builds here in Oz. 👌
Amazing driver.
I am wanting to build My '96 Miata to be a completly N/A Build, and im so happy to know that this is doable af. Sick asl!
Go for it :)
Very insightful walkthrough of the car. My 86 got totaled recently now I am looking for a Miata or rx8
Please tell me you bought a Miata
@@matthewcaimbeul8722 I bought both……
@@matthewcaimbeul8722I bought both😂
Thank you Artur. Have been waiting eagerly for this ( :
Thanks for a good insight!
header wrap looks good. I dunno why more people dont do that
It does make the tranny tunnel niticeably cooler (from cockipt) hence it might help with escaping the exhaust gases quicker and have some effect on performance as well.
Because it traps moisture/condensation underneath the wrap and rots out your exhaust components.
It can become a fire hazard if you have a leaky engine
I was running crankcase breather filter straight from the exhaust side port just above the manifold. Bad idea! When I overfilled the catch from PCV side the oil started leaking from the breather filter straight on the mani wrap. I was lucky to not caught fire.
Thanks for sharing, great build and driving video's. I am putting together a 99 BP4W for my 90 Miata. What size injectors are you running, harmonic balancer? and aftermarket ECU? Thanks
I am running on NBfl injectors which have slightly higher flow than NB but actually borderline for this power. I did install fluidampr after rebuild in 2021. After 6 years of duty the King Bearing main and rod bearings were toast. I am running MS2 pnp but recommend getting newer gen ECU like MSPRO or EMU.
After watching your Ring videos it is very nice to see your build! How is the wear on your particular tyres? Do they last long on a trackday?
I have a '99 10AE. This winter I will install a VVT engine, after the machine-shop completes work on the head. New valve springs (Volvo), valve seals and a head skim of 0,75 mm to keep the engine non-interference.
Cool stuff. The non-interference on BP VVT engines seems to be common myth though - busted by Car Passion some time ago.
I was using 195/50 and 215/50 direzzas 03G in R3 compound and 205/50 H1 and the wear is surprisingly good for the grip the tyre provides. I was able to drive 600km on track with the 205/50 H1s till these were gone. With 215 R3s I think I could drive the whole season so like 1000 track km. With 195s R3s understandably less but still good wear rate. Highly recommend to give them a try.
What an amazing driver you are, that was very very impressive 👍
Good work.
Thank you so much Artur ! I was looking for some ways to improve mine (I also have the 1.8 nb BritishRacingGreen). I got the SW388 15" rims from Spoon and Yoko Advan A052. But I liked the A048 more, especially on wet conditions. I broke 2 wheel studs last time on track (Geoparc St-Dié France) on the right front one. These were 22 years old btw ! Are yours stock too or have you replaced them ? I managed to get a front set from US brand ARP supposed to be tougher.
I noticed that you had to relocate the washing bottle too, as my stock one melt because of the Racing Beat manifold exhaust I put lol !
I'm not pretty sure I got it regarding the inlet manifold, because that's a long time I think about getting the CAI. Does it fit with standard nb inlet manifold ?
Great video !
Hi. Yes, I got 22 years old studs as well, still going strong. The ILM CAI box will fit any stock throttle body and skunk2 as well. The inlet manifold is irrelevant. The point I was making was that to get the full benefit of larger TB you need to rework the manifold opening.
Thanks for the video! How do the abs work with the brake bias valve? I was thinking about this mod, but I didn't want to bypass the abs...
99 1.8 from France !
ABS on NB is a separate module to the proportioning valve. By replacing the stock valve to an adjustable one and adjusting bias you are helping ABS to do less work. It is a must have with bigger calipers as usually after such upgrade the bias becomes skewed and braking gets worse! The less ABS interferes the more efficient the braking.
Thank you very much! This is my next project !
Hell yeeeaaaa :)
I can't wait!
Hi Artur,
G,day from Australia. What is this comment from you about the VVT as a non interference engine being a myth???
I shunted over to CAR PASSION to learn more but could not find the video.
Could you please let me know which video?
Thanks and a great car you have built.
Hi Ian. Glad you like it. Here is the video, go to minute 20: ruclips.net/video/wegquiDjGlk/видео.html
Did you have to do any modifications to the Il motorsport cold air intake?
On the website it says it is not compatible with aftermarket radiators.
@arturturcu, I had the same question
@Bobbie_1999 It just clears Koyorad 36mm thick radiator which has still plenty of cooling efficiency even with oil cooler sitting in front of it. It would not fit with 40mm+ thick radiator.
@@arturturcu thank you!
Ładniusi angielski :) Czy masz jakieś a jeśli tak to jakie dystanse masz założone? Chciałbym pobawić się z tym u siebie :D
Hej, dzięki. Dystanse z felgą która jest na aucie nie są potrzebne. Storm S1 mają offset ET25, co wystarczy żeby przy oponie 215 trzeba było robić rolowanie nadkoli. Dystanse stosowałem przy węższych felgach z mniejszym odsadzeniem ale tylko z tyłu w celu zwiększenia stabilności auta.
Jak kupowałeś felgi? Sprowadzałeś na własną rękę czy przez pośrednika?
Wiborg Engineering
Sam budowałeś czy w jakimś konkretnym warsztacie?
Silnik i najważniejsze dookoła u Xawerego Mielcarka.
Did you have to modify your aftermarket pistons for over-sized valve relief?
Nope as I am running stock head height and have > 2mm piston-valve clerance. Still some place left for higher cams.
@@arturturcu thanks! I plan on running a similar setup, great build though man it gives lots of insight and inspiration!
Hi from France 😁 do you have a new map or it's the original ?
Hi, need ECU with new map fron scratch.
How did you fit the IL Motorsport Airbox over the bigger intercooler?
The Koyorad radiator is 36mm thick so similar in size to the stock one but much more effective. The I.L. CAI fits ok over it. Possibly it would not fit with a 50mm cooler.
The nd disc upgrade, so you use the front or rear nd disc and did you have to drilling or mod the disc to fit?
Thanks
Front 280mm from nd 2.0 is a straight fit onto the nb hub.
Is the power steering unit in Europe different than the North American one? That power steering pump (I think that's what I'm looking at) certainly doesn't look like mine. Is it a stand alone, electric pump so you don't need to have any parasitic drag on the engine?
It is an electro-hydraulic pump from Opel Astra/Zafira. Still drags power from alternator but should be less than oem pump which we all know can drag as much as 10HP! On the downside it assists too much and the steering feel is completely numb, worse than my g25 PC wheel ;) Looking now for alternatives with power controller.
@@arturturcu We have raced for the past 10 years with factory manual steering with no issues. It's 9" and 225's. It's a little tough in parking situations but perfect when moving at any speed.
I did too in the race spec 1.6 NA. It was fine but quick recoveries were difficult and required a lot of experience to be successful. So I feel safer and can push harder with PS when driving quick on the N'ring where there is no room for error.
Czy możesz napisać jaka chłodnice posiadasz ponieważ na stronie IL jest napisane ze dolot nie jest kompatybilny z większymi chodnicami ?
Koyorad ze rdzeniem 36mm jeszcze mieści się razem z CAI od IL.
how did you make the air intake fit with the radiator? because on the website it says that the intake only goes with the oem intake.
Hi, this is a common question and the answer is it just clears Koyorad with 36mm thick core.
What is the weight of the wheels please? Thanks
~5.0kg
Do you have any videos of it idling? I can't seem to find any, I'd love to hear how it sounds!
Here you go:
ruclips.net/user/shortsjeukBuERu9I?si=IbgSX-oVEE5HZW0j
Is it safe increasing compr ratio? Everyone say about high temperatures. Isnt it risky?
@MrTAKIS1984, high compression N/A build requires additional cooling incl. oil cooler. Keep your oil under 120°C and it will be good. Cold air intake is recommended. You need aftermarket ECU to set the fuel and ignition advance maps. This setup would not be safe otherwise.
@@arturturcu thank you!
what cat cam # did you use
3700662
jak z obrotami jałowymi, ile?
1000-1200 rpm w open loop
What coilovers are they ?
Check out Thunderlane.eu
fuel economy on a roadtrip with all the mods?
You are the first one asking this question. It is possible to travel about 450 km on one tank. It is the short final gear that eats the efficiency on the road since you are travelling at +1000rpm higher.
@@arturturcu haha well i ask because you have used higher compression ratio pistons but yeah i guess the gear ratio and all the other mods would make the fuel economy worse. 450km would mean 10l. my 1.6nb uses ~7l at 110-120kmh on the autobahn. the older gen mx5's are really not very efficient lol
@@mhh3 still longer range than most of todays EVs. What is more relevant is that I can make 200km sending the car whole day on a track on a single tank.
@@arturturcu The most fun car i've ever owned and driven. I'm saving for the next gen NE. i hope Mazda doesn't do weird electric stuff with it and destroy the whole concept of the mx5.
What size tyres do you use?
Im using 205/50r15. I was using 215s last year and found it was not exciting enough. Prefer smaller tyre as the car is more responsive and agile. Running on 195s was a blast but grip levels were probably too low for the weight and power.