The K-Swap Nissan 240SX Makes Great POWER!

[@NappMotorsports]

In case you were actually curious, the metal in the chain doesn’t stretch, but the pins that hold the links together start to get worn out over time as the link moves around on them. It’s not a lot individually, but once you stack up the wear across all of the pins, you get what we all call chain stretch. My chain was awful on my K24 before I put it in the Miata, it wouldn’t actually stay timed no matter what I did, since the tensioner couldn’t take up the slack.

[@Pube83]

Sweet channel, keep up the good work.

[@ukrattus]

Exactly this. Paused the video to make sure someone had made this clarification. Chain stretch is like warped discs, a misnomer (what people call warped discs are usually just patches of friction material and sometimes rust).

[@abrahamsanchez2197]

Oh the pins aren’t metal? 🤔

[@ukrattus]

@@abrahamsanchez2197 Oh the pins are metal, it's just nothing stretches, it's just the pins wear so gaps form allowing the links to move apart slightly. If you lay the "stretched" chain down flat on the bench, you'll find you can bunch it back up to the original length, by taking up the slack caused by the wear. If the links themselves had stretched you wouldn't be able to do that. Same thing happens with a bike chain. Hope that makes sense.

[@simonburns102]

Exactly this, therapy as a bicycle chain.

[@DIGPLatinodriftking1]

WOHOO! 236 at the wheels, thats *HEALTHY*

[@japlishdrifting]

More like 236 at the flywheel...typical american dynos lol....

[@bottom_lizard192]

Damn cams and valves with all those supporting mods and all they got was 236 lmao

[@1S1KC0DM4N]

@@japlishdrifting, they’re Canadian lol

[@RadDadisRad]

I love this swap so much. One of my favorite chassis’s and one of my favorite 4 cylinders.

[@ichihusni5014]

Now can we ask garrett turbocharger for some g series goodness?

[@kennyg4299]

It needs LARGE of everything. Intake pipe + air filter + header. Great channel btw 👏🏻

[@upbuild4397]

It’s amazing seeing how much that timing chain stretched, I love seeing the details like that. That’s fantastic 236bhp 👍👍

[@cesarortega6615]

I can tell you guys read the comments I put that socket part number on the previous video. Great jobs guys great job

[@thegroundhurts]

This is why I always rotate engines by hand and reindex at TDC to verify timing.

[@tylerandrews55]

Yeah I always check it several times along with the the chain and tensioner

[@k23turbo80]

I'm definitely taking notes for my k series 👍

[@hifiandmtb]

With chain stretch, it's not the link plates that are stretching, it's the chain pins that are wearing out. The growth comes from the bushings wearing with the chain pins. Always love watching your vids, BTW!

[@vincentradziecki7470]

its been over the 90's since July began. Its crazy hot!

[@atraxr603]

Chains don't stretch. It's just the pins that hold the links together that get worn out and leave some play between the link and the pin which in turn makes the chain longer.

[@panel11111111]

I'm not even a Honda guy and I fully enjoy these videos. Keep it up guys !

[@MrBenstero]

The metal doesn't stretch. The rollers wear out the holes in the bars. That's what makes the chain longer, not the metal itself elongating. You can see it a lot easier on a bigger chain like a quad or a street bike.

[@BradLancaster86]

Nicks x201 lenovo makes me happy, they are such built proof laptops

[@chrisej5987]

The chain isn't actually stretching. It's just becoming loose as every pin in every link is wearing. Under tension it looks longer. If you could compress a chain it would look shorter.

[@michaelsmdk]

Waited for the s13 tune vid and the guys delivered! grate video, you should take it to the track next. after the temps cool down a bit of course.

[@_Keir]

s14 :)

[@michaelsmdk]

s14* 😥

[@Gravstein]

s14a (kouki)

[@BucksSuperStereoWorld]

I realize that it's much easier on the budget to go with a K series, but I'd really like to see a F20C swapped S14 someday with ITBs, long tube header, full Thermal Research exhaust like I have on my turbo Civic, higher compression pistons, forged rods, built head (with cams, bigger valves, springs, and retainers). I think that would be really cool. Another dream of mine is to own a fully built high compression J32A2 or J35 with the same mods to make it real snappy and responsive into a S15.

[@opegg2000]

Timing chains dont actually ‘stretch’ they wear out the links slightly over time and thats what causes the elongation, usually comes with not changing oil regularly!

[@TABRO284]

My guess on chain stretch is each pin hole is widening up. So over hundreds of pins a small amount adds up quick.

[@myfavoritemartian1]

We blended a solvent with 91 octane and two other trace additives to make our own 103 octane race fuel. It ran wonderful but reacted with almost everything. The foam inside fuel cells, plastic floats, most all rubber lined fuel hose got soft or swelled. Brass floats, Methanol type cell foam and teflon lined hoses were necessary.

[@MyLonewolf25]

E85 dude E85

[@WarriorsPhoto]

Good build and Honda always makes great engines.

[@cpds25]

Another awesome video. Thanks for getting it out as fast as you guys could

[@cooperhomann783]

chains dont "strech," the pins in the links wear causing the outer diameter of the pins to decrease and incease the play in the links causing the the chain to be longer

[@helplmchoking]

Yeah it's not a case of the metal stretching, it's the pins joining each link wearing down. Thinner pins does the same job as bigger holes, and half a mm or even more on every one of those links adds up over the length of the chain! They last much, much longer than a cambelt but they do still wear over time and eventually need replacing, it's just going to be closer to 100,000km intervals than 10,000km

[@johng69er]

So what your saying here is that they stretch

[@SuperSilvi1990]

@@johng69er exactly smh

[@ΘάνατοςΧορτοφάγος]

@@johng69er stretch is when the material gets longer, which is not happening, so not stretch

[@helplmchoking]

@@johng69er eh it's semantics. The actual links do not stretch, at no point in the chain does the metal get longer, but the pins between the links wear down which gives just a tiny bit more play in each joint, making the overall chain longer. Does that count as "stretch"? I guess maybe? Nothing actually stretches, but the chain IS longer and calling it stretch is definitely a lot easier

[@notsponsored103]

Same thing happens to bicycle chains. Basically the tolerance between the link pins and the links increases with wear and when compounded along the length of the chain becomes very pronounced.

[@craiggreen4388]

My chain knowledge is from the bicycle world, but worn/stretched chains wear correspondingly with the teeth on the gears & sprockets. Replacing only the chain seems like half the job to me. This seems the norm with automotive maintenance though. Great vid guys.

[@chadlegault9993]

It is pretty common to be at the track on hot days. We are not even that far into summer. Good on ya for pushing through.

[@memespongee]

Nice having an extra hand and expertise...love the upgrades

[@Seth_Desu]

"It's so hot and humid, it's like 35 (C)!" **laughs in Foridian**

[@jamest5149]

Chain wear, not stretch 👍 If you get the metal of the chain to pass it’s yield strength, something major has gone wrong, like the engine seized or throw a rod casing a sudden stop and massive forces.

[@rascaltwitch22]

The metal in the chains doesn't actually stretch! Wear between the pins and the links creates lots of tiny gaps that add "slop" and make the chain longer when it's in tension.

[@JasonMcMullen]

Awesome video guys, so much good k-series knowledge. Good to see the 240 back to make some jam

[@thebluntedcarguy7163]

No that 19mm is designed for crank bolt removal. The extra mass is what makes that socket special. You have more mass, breaking force while using this, think of socket like a torque converter.

[@CarlHook]

Superb. Just I still don't understand why people say that they have a stretched timing chain. They do not strech, they wear out the link joints, thus prolonging the chain.

[@SuperSilvi1990]

Because they become longer than the original spec....so in layman's terms "it stretched"

[@CarlHook]

@@SuperSilvi1990 yes yes..i know, but then people start debating how metal streches and stuff and it just becomes funny :D

[@AaronHendu]

A 240 with a K24 and 240 HP/TQ would be an interesting setup.

[@Smngorin]

Man I learned so much on this episode, thanks guys! 😁✌🏻

[@bennybaldwin2627]

Glad to see it back on track.. now for the track time video... and boost. I think a shoot out between this and the E46 JZ car would be really fun!

[@klktudicr]

This 240 is a dream. I can't wait to see what it does at the track!!

[@maperformance]

Ooo hey nice shirt!!

[@itstartswithcars]

I would also love to see this vehicle versus a stock or stock-ish SR20 S14. Header comments show how important it is to look at the full picture when tuning. Let’s get a hy-tech header on there! Might break 250whp on a cool day. Thanks for good content!

[@Mgaret03]

A stockish s14 sr20det can make 300whp.

[@jpwilliams5264]

Need to see more videos on the street guys! It gives a better perspective.

[@DreamWrench]

Nice work again boys!

[@thewakz]

Love the way this car turned out, the grind was well worth.

[@mattcaudell9972]

I love this channel so much

[@home541_]

I love those high inertia sockets

[@Spider_Gooch]

That valve cover is fucking absurd, it looks so god damn good.

[@davidfogel5207]

BMW should learn from Honda, on how to produce chains and guides xD N42/46/47 n13/16/20 crew knows what I'm talking about. :D

[@marlingunworks6172]

BMW also needs to learn how to make a gasket that doesn't leak after 10,000 miles.

[@davidfogel5207]

@@marlingunworks6172 That too. Love the drive experience, but spend more time fixing it than driving it.

[@helplmchoking]

Ive done one on an n54 and it didn't give much trouble? That said, I do appreciate not having to do it very often

[@WTFNoNamesLeft2]

BMW spends ALLL that time engineering systems but then implements the designs with the cheapest materials they can find. The same engineering that goes into their design also goes into "minimum required durability of parts to maximize profits".

[@hendrahendra]

They cant even make an AC vent that doesn't fall apart.

[@laser-sj]

Now just add a turbo to make all the effort worth it. 😉

[@jimmehvideos]

Why it's an NA build? You have no idea...

[@Wheemer]

Even a tiny turbo to get it to 400hp would be a nice track car.

[@damiendoisher7812]

@@jimmehvideos it's an na 4 cylinder. It's so slow.

[@ryy597]

@@jimmehvideos because it has 236hp... do i need to say more?

[@therightnuke]

Steve Reid vs the M3

[@shane3350]

From messing with various engines with "stretched chains" I've suspected that it's actually the holes and/or the pins that link the chains wear ever so slightly. The tiny bit of wear between each link adds up resulting in basically lengthening the chain if that makes any sense.

[@manolom1669]

That’s pure beauty 😍

[@Dantutz]

Is that a rag at 9:30?

[@Gravstein]

And now for some custom long tube headers!

[@Sauerbrew777]

Gotta love K-tuned! They're always sending love(parts) to all the Honda builds I follow!

[@Pube83]

Why? It's cheap advertising for their expensive products.

[@pFbSpecV]

Very awesome numbers!!! Now I really want to do those cams on my integra! If I can pick up 30 to 50whp!

[@dohc1974]

Awesome episode! Learned a lot about the kseries timing. I have a 4door 05 accord with crazy rattle in the engine. I always suspected it was something to do with timing chain or the guides. This video helped confirm the issues, now I just have to get around to fixing it. A bit off topic but that exhaust rasp though 😩🤮 maybe some resonators would help you fix the rasp?

[@youngb1ood]

Are you sure it’s not the VTC actuator on the intake cam?

[@ivantsipr]

So the Z7 chain guide(tensioner side) fits on the A2 engine, that's nice cause that guide is a lot cheaper too ($35 vs $110 A2)

[@LessTalkMoreDelicious]

I had a stock’ish SR redtop in my past S13 in the ‘90s... def fun, but it’s no Honda engine. My current stock Ap1 would rip it a new... 😆

[@TheBb6prelude]

My guess was exactly 236 wheel. It was spot on guess.

[@jimmehvideos]

Sounds so good!

[@Not2day-Satan]

It would have to be an NA SR with some good mods for it to be a good comparison. A turbo SR with decent mods would shit all over the K until it breaks. Lol K is still a great engine but you guys need to drop in some serious turbo or add a couple bottles of nitrous.

[@RadDadisRad]

I bet that spring is VERY helpful. I’ve noticed that the NVH of the motor along with the little bit of blow by pushes the dipstick up 1/4” or higher at track events.

[@The_Referee]

great job !! lovely motor

[@Jeff_Klein]

Nice to see that Milhouse grew up to become a car guy.

[@noobatnothing]

my canadian tire compression tester reads low like 150 across the board on my b20v and the same model that my buddy has reads 190.. who else calls it crappy tire?

[@rhussain110]

@ 9:35 there is a blue tissue in the coolant hole?!

[@Fyxxterzc]

Reused the same tensioner? I see you guys like to play with fire.

[@PheyuckYu]

You guys should buy the skunk2 big tube header for it now.

[@joshc606]

270ish crank HP would be fun to bang around in.

[@webb4252]

Would of been nice to see a pre and post cam dyno overlay!

[@16ToyoSupra]

Yes finally !

[@diegopena8217]

A nice header and some E85 should push this to over 250 to the wheels. On another note, I have an S14 with a stock S14 SR20DET that we can line up.

[@feelthatfeelthat]

People say canada dry and maple syrup are Canada's greatest exports, but it's actually KTuned.

[@TruthBeToldGamer]

Man it’s weird the engine not making more power pass 8000 especially with those cams.

[@petrolhead8851]

This thing needs a k20z1 or z3 head with a nice port and polish and port matched intake manifold,on e85...I bet it’ll be in the 260-280whp

[@danielhaynes1642]

That's weird with the cams and revs. I run the DC 2.2 as well on my k24 and I make power until right at 8500 until it starts laying over

[@mrnicktoyou]

Is that about 300hp at the crank? That’s pretty awesome for naturally aspirated. Don’t put a turbo btw, keep it like this.

[@RadDadisRad]

Yeah, bump up compression a little and rev it out to 9500. Would be a sick ripper.

[@rosaarriaga5602]

No that's not how drive train power loss works ppl think it's a percentage but it's not. If I put an Engine on a dyno and it has 500hp 450tq then put that same Engine in 3 different cars with 3 different transmission with 3 different diff gear ratios and 3 different tire sizes your going to get 3 different Wheel Horsepower and Torque #s

[@ryy597]

no its not 300hp at the crank. its about the same power level as an sr. why go thru all of that pain to get the same hp as the previous engine?

[@rosaarriaga5602]

@@ryy597 because with a turbo a stock K-Series can make 3-400hp and still be pretty reliable idk why they kept it NA.

[@fabre80]

Love the content from you guys! Excellent channel. Will you guys ever do an Audi n future ?? maybe S4 or S3?

[@MrDannyd9]

G25-550? 🤞

[@Leo-cb8jp]

Love this car fellas

[@altypeRR]

I’m surprised it even started being a tooth off. But then I guess it’s on an aftermarket ecu it could adjust for it but on stock ecu mine wouldn’t.

[@MrChevroletEd]

The numbers seem a little low for a chassis like the s14, but I would love these numbers in my ae86 🤤

[@henlolneh]

for going sideways, definitely not enough juice for an s14. still seems a little under powered even for track/autocross as well. FI is the way to go if your k20/24 isn't going to be just a street queen.

[@CottonRamen]

A dual cam KA is enough to drift with

[@MyLonewolf25]

That’s wheel not crank pretty decent

[@MrChevroletEd]

I understand that the numbers are still usable, but the chassis doesn't seem like a great fit. If this car were fully gutted and max effort, that would be a fun track car. I am not saying this car wouldn't be fun, but it just wouldn't be very nimble as it sits.

[@hlq16]

@@MrChevroletEd it still has a lot in it, I reckon. There are a lot of 330-350 bhp k24s around. They'll need E85 though

[@MigzNthings]

Crazy to think I was off by 1hp. My previous guess was 235hp

[@fcorivers]

So you can't tune in FL? My car registered 125° F on my way home at 4:00 pm today, lol

[@Josip5001]

can't wait that track video :)

[@tragicnomadic]

Na s14? Sr20ve ftw!

[@tylerandrews55]

Head porting will make more power everywhere

[@thekamalwhf]

On the cheap compression testers they have a very cheap gage, just replace it with a quality gage or a digital gage, the rest is all good.

[@Sir.VicsMasher]

Pretty sure SAE numbers take temperature and altitude into equation.. It's the reason why it's considered the standard by shops that don't have an insecurity problem which fuels their need to pump up their dyno numbers to impress their customers while talking about some BS 20% drivetrain loss. Just use SAE Smoothing 5 like God intended.

[@frankzane7326]

new oil pan? how about the baffel

[@xozindustries7451]

Why doesn’t anyone open the throttle blades when doing a compression test? If you’re drawing vacuum you’re not getting a true compression

[@AngelFloyd27]

Is it me or does the car sound better with the new cams? Like more lively and aggressive in the upper range.

[@Pube83]

That's what cams do...

[@AngelFloyd27]

@@Pube83 I know what cams do. I was being polite. Do you know what's a compliment? Look it up. It's important to be nice.

[@rkd350z]

@@AngelFloyd27 no need to be polite when talking cams. be aggressive. :D

[@AmirPomen]

It is... Because a 2.4 motor on stock 2.0 R cylinder head will slightly becomes a restriction and not as lively and as crisp as the 2.0 R motor..because of the extra displacement... With a bigger cams its suited the bigger engine better

[@jake2102]

Anyone ever wonder what humidity does to a tune? Like you’re burning water. This is Canada!

[@kpowerindustries8210]

We like this video much better :)

[@chriissttiiann]

Does anybody know what dash cluster that is? The digital one they have. Still have my ugly stock cluster and needa upgrade 😂

[@techobsessed1]

How much is metal stretching, and how much of it is wear of the pivot points?

[@johndb1224]

Wonder what 1/4 mile time and terminal speed would this car pull?

[@MyWolffy]

Everyone acts like crank bolts are so tough a good Milwaukee impact with get em off on a chrome socket lol

[@nickdominic9103]

there are stock k24 making 240 hp with e85 smtns wrong here. Chalk it up to drivetrain loss which i hope not cause if i get less than 260 im considering it a waste of money

[@erikmiles5536]

I assume the Dyno software is doing SAE correction for the temp and barometric pressure? Looking forward to seeing you folks testing it out on the track.

[@kevinpagan9168]

Something wrong because i made 249 in a full k24a2 nothing from K20