How to Build the Honda/Acura B-Series Engine!

[@JacobMueller]

This year Im rebuilding a 1 owner, 320k mile CRX from Alabama, which is in pretty great shape overall. Next year is building a B series for it...what perfect timing for me that you guys made this vid. Really going to enjoy the next 45m.

[@Lost10mm.]

That's awesome, got a few honda projects going to. Hope it goes great for you.

[@foshoitzdanny]

Hopefully you got some $$$$

[@rolls5328]

Never seen a street NA engine thought out so thoroughly. World class! Would love to see it bolted together in a future episode if it's not asking too much. Magic content as always.

[@motoiq]

its coming

[@customconnections2425]

⁠@@motoiqThanks for that! Can’t wait.

[@Boostd4]

Great video, glad to see the B Series still getting the attention it deserves.

[@uses0ap]

B-Series are incredibly efficient. Would like to hear Mikes thoughts on LS/B20 Vtec

[@motoiq]

I like those

[@johnrobie9694]

I'm not a Honda guy, but found this video very informative and gives me some things to consider for my engine rebuild.

[@Ravenousjoe]

I'm the same way, I know they are good, just not my thing. After this video though, it's nice to see a solid series of small engines that would make for a great engine in a super lightweight build.

[@TheScotchula]

Pretty sure Mike has forgotten more about cars than any of us will ever learn.

[@ZER0value]

Mike you are an absolute treasure on here mate, thank you for everything information wise you provide to the internet!

[@em1tuning797]

Very much appreciated when producing B series content.

[@claudedottin1312]

Do a D series!

[@Bruce-r4z]

i grew up on the D and B series and have special affiniy for them. K series is awesome and benefits from all the initial growth R&D from B series IMO. Have B17 out of GSR in my 87 CRX si and a D seires with Jackson Racing on D16 in 88 EF. I own newer VW/Audi but love those cars to my death.

[@TheEvilTwinCG2]

Great video. Info everyone needed 20 years ago. But never too late because b-series is still the best for me.

[@yeahman1756]

Ah! the Beast Series... I fawkin grew to lov'em because I hoarder a bunch of B series headd and blocks(b18/20 short blocks, b18c1 long blocks, b16 heads and a few ITR and CTR heads) , B series transmissions and B Series accessory parts when I run across them at junkyards or social media online for cheap. I'm NOOBIE idiot to the automotive engine building world because I'm on the business industry side all my life , but do understand the concept pretty quick as I do research and read auto mechanic books about them on my free time. I now just need a good size garage workshop with a couple of machines to work on them like restoring and overhauling them to oem specs with new advance technologies and building some of them as race engines as turbo applications as a hobby. it feels therapeutic peace doing so at your own pace. unlike the business world where you constantly on the go with pressure and stress everyday.

[@DKK]

Love the vast amount of detail!

[@IIStyx123]

Love this!!! Now it makes me want to dig into the internals of my GSR!

[@AlwaysApproved]

LEGEND. I still have the OG book/guide of How To Modify D, B, and H Series Engines For Street and Drag Racing Performance by HPBooks. Love seeing your content man

[@chay2639]

what is the book title please id like to try pick up a copy online

[@TheRealMrRoyal]

Me too!! And the K series and the car audio one. What a blast from the past. Found them on a shelf at work (napa) during our last inventory.

[@TheRealMrRoyal]

@@chay2639 what he said is the full title.

[@AlwaysApproved]

@@TheRealMrRoyal heck yeah man. the good ole days

[@Bruce-r4z]

Thanks for tall the knowledge transfer Mike

[@JetLagRecords]

MotoIQ, awesome content my guy

[@Thatloudfit]

If you guys get a chance can do H series ❤

[@BennyJay3]

I agree, would be nice to hear him talk about solutions for the FRM lining

[@RandomlnternetGuy]

Absolutely! H23/22

[@Lost10mm.]

F22/h22 Frankenstein would be awesome.

[@iidrippykingii]

Please do h series

[@CelicAWD]

Just resleeve it, a buddy of mine has one making a little over 500 at the wheels. Hes got darton sleeves in it, runs fine.

[@j.m.5995]

I read somewhere that Daimler benz utilized a sort of VTEC system on their DB 600's from back in the 30s

[@AdinSLaboy]

Hell yeah I'm on it I personally build one this year by myself ends very well but you get me more inf for the next one I'm definitely doing a bullet proof one

[@igvtec]

Honda for life! 💪

[@frias2287]

Nice job bro 🐐💯🔥💪🚀🚘⛽️👍

[@detonationpyrotechnics4156]

I don’t even have a b series but I’ve been waiting for this lol. I have an h22a and I would love to see a video on that platform

[@minibikemadman]

b16a1 for the rod to stroke ratio ftw..mad revs

[@Bacongrease00]

B16B if you wanna get serious about rod to stroke

[@JohnnieIsBored]

Yes, it’s about time!

[@calebvance2319]

Super cool video with lots of great info and new tech.

[@anydaynow01]

A lot of great info, can't wait to see this build!

[@spencersgarage]

Yes!!! awesome work guys!

[@robertalicea5585]

Thanks for the video

[@catsinflames4598]

oh yeah I needed this

[@AlexizOrtiz-dh4xj]

I've been wating for this 🎉

[@kwxst]

Dang I’m rocking this block guard hoping it lasts me a long time on my b20vtec 🥵🥵

[@jench78]

I'd like to see how this compares to the B series y'all build with the Nissan rods

[@toycoma98]

I should've i bought my brothers 2001 SI, even though its gone, I still enjoyed this video and learned some stuff that i wish i knew back then. Can you do 2RZ or 3RZ in the future? Thank you

[@motoiq]

We could but no interest

[@gamerdiydad]

Thank you

[@oscardlr4284]

Ty sir 🤙

[@Hello_its_me_mario]

2024 and people still rocking b series is crazy

[@sieve5]

I just love Integra's man. They're the best car ever made.

[@tiagosilva2635]

Could you talk about the problems you have to account for when using oversized valves with bigger camshafts? Like How do measure v2v, dial in the cam timing, specific valve job to gain clearances

[@motoiq]

That is coming. Working on the video next week

[@tiagosilva2635]

@@motoiq awesome than you

[@klemenzfreyr2106]

I have a b20a5 engine and I wish it had more aftermarket support for it. I still love it tho. I'm thinking of getting a another engine to rebuild for boost since it's a closed deck. I wish it was more like the other 90's bseries

[@h3xd3m0n9]

Everything b fits

[@klemenzfreyr2106]

@@h3xd3m0n9 incorrect. The b20a5 and the b21a1 are completely on there own. No other bseries parts are interchangeable with them.

[@cudleeman]

It says b series, I watch b series.

[@miracledriver55]

Right like its mandatory

[@JonBanquer]

Vapor Honing is just a fancy name for wet blasting. Supposedly wet glass beading seals microscopic openings in aluminum, preventing corrosion and oxidation for years to come. That's certainly a huge advantage for what should be very little money.

[@motoiq]

It is relatively inexpensive.

[@JonBanquer]

@@motoiq kzbin.info/www/bejne/eJXSemOdltRsbLMsi=eKqfW3_H9cNkax4a

[@motoiq]

I think she needs to experiment with other kinds of media, the parts still have that flat glass beaded look.

[@JonBanquer]

@@motoiq Vapor Honing Glass Bead Blasting Media Visual Finishes by Grit: kzbin.info/www/bejne/nKqapmyubdqqm9ksi=zKFFfgg2DA4X0t26

[@motoiq]

This is good info

[@Rickie-37]

Funny you recommend factory bolts. I've been having to explain to customers for years why they are superior for low to moderate power

[@Oregon52]

Can you guys do something on the 1991-1995 Turbo MR2 ?

[@BTDrgonzo]

Do you guys ever build 2zz’s? If so, do they respond to the fluid damper?

[@Truufreshjay]

I have the bastard B series, the b21a1 and i’ve always wondered what made it so different than the other

[@Constan19]

It would be nice to see the final result on a dyno

[@motoiq]

This is a customer engine so when it's gone, it is gone.

[@konic40]

Time to go look for a video showing the WPC procress

[@motoiq]

we did

[@TheEthanjk10]

Great video, not hating but I didn't learn to build a b series engine in this video lol

[@shiloh5199]

He said, " A ring full of snot ". 😂😂

[@TheVesterRaev]

I have a request! Can you please have a look at what k-tech did to the f20c motor? I’m intrigued in that strategy of having such lightweight pistons for a NA f20c, and if it’s something you would be able to buy and assemble outside of Japan.

[@motoiq]

Watch our K series stuff, it's almost the same.

[@kkkevv224]

wanna hear that vtec crossover

[@YashPatel-jj2fy]

Can you please make a Evo X 4B11T . Stock to 450 whp bullet proof build video, Please

[@funkyd04]

Curious if you've investigated thin ported piston rings by companies like total seal?

[@motoiq]

I am really eager to but haven't done it yet.

[@BrodeyDoverosx]

I doubt you’ve built a 1.4L multiair (Fiat), but I’d love that. EA888 would be swell but not nearly as useful for me.

[@motoiq]

Not interested in those engines.

[@krautworks]

Now we'd only need a video on D-Series and/or F-Series engines and the old-school Honda trifecta would be complete! Or are there even enough differences between those and B-Series engines to make a video in the first place?

[@motoiq]

We don't get much interest in those.

[@smokindomain]

Hey mate, What’s your plan with the mini behind you?

[@motoiq]

Fixed and gone,

[@jinezawa7089]

So I wanted to ask, are the B20 sleeves as weak as people say? It seems to be a big point of debate. Would they be good for an NA b20v street build? Not looking to build a 10k rpm race engine, just kinda window shopping to figure out possible future routes to take with my teg

[@motoiq]

Yes they are fine.

[@Zubawoo]

Glad I saw your video I was considering block guard but know that u said it I’ll stay away from it

[@LiveWire-it8zr]

About what boost pressure would you advise going to studs. Like over 30psi? What about arp bolts instead of studs?

[@motoiq]

past the mid 20's

[@r5obiwan]

Yall work much with the G4GC? Not that I'm building one yet but just curious at how often y'all see them

[@motoiq]

Not at all

[@mickl8212]

How easy is it to source engine parts for the B18C6 Type R nowadays? I'd like to refresh mine. Is the 2618 piston as quiet as the original P73 honda pistons? I had a set of wiseco pistons in a B series turbo build I did back in the day with 2.5thou clearance and they were ever so slightly tappy at idle. Got on my nerves a bit.

[@motoiq]

You can't get the original Honda piston anymore.

[@boostedhatch490]

With those boostline rods does the block need to be notched with the stock 81mm bore?

[@motoiq]

No

[@Snake_47]

How would one go about a 10k + RPM B18c7 (aussie spec) ? Looking at rebuilding mine once I take the motor out. Power figure is similar to the one featured in video but a large aspect is being able to hit that 10k + goal.

[@motoiq]

Spend a lot of money. Not have it streetable.

[@Snake_47]

@@motoiq Ah bugger, the plan is to spend the money and be streetable, maybe ill reassess my goals

[@motoiq]

High RPM means narrow powerband and less torque.

[@sloqlap]

Request: Please make a how to build the Nissan L series engine.

[@motoiq]

Possibly

[@sloqlap]

@@motoiq I'll even send in my own L28 if you need an excuse.

[@motoiq]

Send it in and about $12k and we will send you back something awesome.

[@CJ5EVOLUTION]

A few questions, do you use the same Cyl head gasket you are planning for the build when you torque plate or without? What is the final compression ratio with those pistons for that build?

[@motoiq]

the same type of gasket, yes. 11:1

[@CJ5EVOLUTION]

​@@motoiqthanks for the reply, is this engine knock limited that it can't be increased to 12:1 on pump gas? Or using octane booster.

[@motoiq]

I don't recommend it

[@rotarolla1]

A 20b 3 rotor engine, no turbos, just dump them, standard low compression s6 rotors, makes 270bhp rwd on a hot summer day. Its a 2ltr nine "cylinder" with no valves, revs to 9k even though the rotors are spinning at 3k, unbeatable engineering as are these engines but with more torque, 3 rotors only got 235Nm n/a atw.

[@miracledriver55]

B series is the heart of the holy SIR VTEC GOD

[@GaijinCT01]

How about some Honda/Acura j series content? Hardly ever talked about.

[@motoiq]

I don't particularly like the J series and we have no calls for them.

[@erickbernard8208]

Growth rate is the reason i want early 99 ls heads that are steel

[@motoiq]

They are not steel

[@mickl8212]

Is the mini in the background originally from the UK?

[@motoiq]

Yes

[@cybcx404]

We need J series

[@richanndeocampo1366]

Can you make a vid of how to build a h22a engine

[@motoiq]

If someone is interested in us doing one but we haven't had a single call for one.

[@sentree9857]

Jeez man I can’t imagine it being cheap to cryo-treat, vapor hone, align hone, shot peen/WPC treat, precision balance, micro polish, etc all that fancy stuff to an engine block. Don’t get me wrong, I’d love to do it. I’m just wondering how cost effective it is. Like, by the time your done with the engine your pockets must be hurting lol. I’m still gonna see if my local machine shops offers it - doubt it though.

[@motoiq]

Proper machining, balancing, proper valve job and controlling clearances are important basics that unfortunately many engine builders and machine shops can't do. Even in our area not to many can.

[@clueless3398]

Do an Na and turbo L series please!😂

[@thegreenthing7603]

Because of this video, b series engines prices just went up. Save the Bseries

[@djosbun]

Wider rocker pads leads to additional valve train frictional loses.

[@motoiq]

It has nothing to do with that. it gives more room for a bigger camshaft without running off the pad. The contact area is not changed at all.

[@Lost10mm.]

Wish someone would try to get you to do a Frankenstein honda f23 or f22 with the h22 head

[@motoiq]

I don't particularly like those engines.

[@Lost10mm.]

@motoiq I'm really curious about why and how to make improvements. A lot of guys will try it out to save money on a build. I've been researching it for the last few years because I'm looking at doing a f22a1 or f23b with h22 head and putting it in a 91 honda accord(cb7 ex) and going rwd using a civic wago rear end and a local built drive shaft. Will probably leave the balance shafts unless you or someone else besides sagnett. Telling me otherwise because of a actual failure. As always really appreciate your vids and advice

[@motoiq]

I would take the balance shafts out

[@5hift6ear]

Which exhaust manifold did the customer end up going with?

[@motoiq]

We recommend something like the ASP www.aspheaders.com/store_header_b_civic92_00_int94_00_hood.php

[@chewdoobautomotivedetailtm2883]

🔥🔥🔥❤️❤️❤️❤️

[@dingomanz7]

245hp is crazy

[@patrickafonso8080]

Hello in the past I have issues with skunk2 rockers. The motion ratio was not good on two different sets. Cam timing was messed up. Can you say me if you have same problem or if they have corrected it. Thanks

[@motoiq]

Don't have much choice nowdays.

[@nicmccarthy8300]

I had issues with the Skunk2 rocker set too. We had oil leaking between the rocker bore and the rod, apparently my engine builder couldn’t get enough oil pressure to engage vtec using these rockers, had to go back to second hand factory sets. Anyone else had this issue?

[@motoiq]

Interesting.

[@B16A5_EK4]

*They are called JUNK2 for a reason*

[@motoiq]

Skunk actually has a lot of really good parts. We will be careful to check this when we assemble the engine.

[@Bacongrease00]

How much porting doss it take for a b16 or b18 head to get the same flow as a stock k24 cylinder head ?

[@motoiq]

A lot

[@Bacongrease00]

@@motoiq in theory if the displacement is equal, compression is equal, camshaft specs equal, and the cylinder heads are equal then a B20 and K20 make the same power?

[@motoiq]

close

[@robertalicea5585]

Any J35 videos?

[@motoiq]

Not in the immediate future.

[@marvinreyes6270]

What is set up application for b20v na

[@motoiq]

Use a B16a or B18c head on the B20 bottom end

[@njnjnh]

Didn't realise guga build engines too

[@jasonsmith760]

What kinda power is this motor going to make at the wheel?

[@motoiq]

220=230 whp

[@jasonsmith760]

@ would love to see that dyno sheet when it’s finished.

[@motoiq]

on our website we have articles and dynos on an identical engine

[@daniellenkiewicz9100]

Sweeeeeeeeeet

[@mm8436]

Dam a type r is a restomod. I'm old

[@ktm_rider879]

got 7 b serie in my life : b16a, b16a2, b20b, b20v, b18c and one j35z6 best engine on the planet !

[@john-martin]

Why? Now I gotta rip apart the block. . .

[@_jdgeorge_]

I'm betting 220 at the MOST.

[@motoiq]

220 is smaller cams and less in the head with stock manifold and crappy headers

[@RonHaslam2001]

Again, I am just pretending to understand everything Mike told us 😅

[@tacosanloresno]

Great explanation but no visuals so mid video

[@aaronbryan5095]

Sucks that honda of today really don't care much about naturally aspirated engines, all the vtec and i-vtec badges they throw around these days don't really mean much anymore as well. Their L15 turbo sounds like crap, hates to rev, doesn't feel smooth, has weak head bolts and the other internals like the con rods and crankshaft are so cheaply made, yet they stuffed such a crummy feeling engine into 2 generations of Civic Si already. Also, somehow a stock K20 turbo found in the CTR and ITS can't safely handle as much power as the K20 from the 8th gen Civic Si and the K24 from the 9th gen Civic Si.

[@kendrickwilliams3696]

Honda stole VTEC from Nissan. Then Nissan went one better with the vvl.

[@motoiq]

VVL came out after Vtec and it isnt better, it is pretty much the same.

[@CM-tc6pp]

You would think that if cryogen treating your engine was extremely beneficial, the company would be more than happy to nerd out and tell you why. Thats weird.

[@YourFriendlyHoodVampire]

That's a really good point

[@BrodeyDoverosx]

Probably waiting for the patent to go through.

[@RandomlnternetGuy]

If i was a shop owner, not sure I'd pay for something because "trust me bro", even with an amazing track record. I'd need a LITTLE BIT. Maybe the last in depth cryogenics video they did exposed them to competitors that may have copied or innovated their tech since. Still, show me the before and after from the old process to new and I'll be on board.

[@Javierm0n0]

​@@RandomlnternetGuy if the market is so easy to get into that one video gave them tons of competitors then they need to innovate and just emphasize their quality checks and attention to detail process. Refusing to say anything even, as you said, with their track record, makes it feel like snake oil or "it's the old process we're just saying it's new".

[@CM-tc6pp]

@@RandomlnternetGuy They can guard their secret of how they do it and what process and equipment they use but divulging the benefits would be nice to hear.

[@beachboardfan9544]

"assume its really good" 🙄 Thats disappointing coming from you. Engineers dont assume quality.

[@motoiq]

Relax don't do it for your motor. I have seen the results data. Good enough for me

[@beachboardfan9544]

@@motoiq Well share the data with us then 🤓

[@motoiq]

20% increase in yield strength, 40% improvement in stiffness and 100% improvement in fatigue strength. I have no idea how the metallurgy works out.