This built is a big middle finger to the turbo way, is so cool when somebody choose the N/A path. Big thumbs up
@abunaiN18 жыл бұрын
n/a it's the hard way but goosebumps in 9.000rpm's and beating turbo guys on hot days is worth it !
@tiagobernardo68078 жыл бұрын
abunai888 Amen
@grosano958 жыл бұрын
Kinda weak, all motor Hondas are making 450 whp with a 2.7 liter 4banger.
@grosano958 жыл бұрын
***** probably like 15:1 cr on +100 octane...still 800cc and 2 cylinders less than the VQ35. Pretty sure this V6 has more than 12:1 cr as well.
@grosano958 жыл бұрын
***** There are bored VQ35's running 12:1 cr and making +300 whp, this engine must be close to 13:1. Honda engines are the best, those little beasts! So strong, that the fastest FWD Civic makes 1800 hp from a 2.0 liter :) Nice numbers for only 9 psi, btw!
@screwloose4558 жыл бұрын
5:40 WHEN THE DYNO RUN ACTUALLY BEGINS.
@thomasj51387 жыл бұрын
screwloose455 thank you
@M471K7 жыл бұрын
All heroes don’t wear capes
@TheMarvelous13104 жыл бұрын
(Slams table) THANK YOU!
@tannerharris58484 жыл бұрын
Thanx lol
@vqwxnter44503 жыл бұрын
Thx
@invisibleaznDJ8 жыл бұрын
Awesome car. But I am always impressed with the extremely clean shop.
@rambow708 жыл бұрын
Clean shops either mean extreamly professional or they don't do anything lol
@gagesonny30488 жыл бұрын
A clean shop means prissy ass men. Go to a real automotive repair shop, or a car fanatics personal garage, it's always dirty. My father was a mechanic and he spent over 100k on tools in his lifetime, never would you open his toolbox and it be "Clean." Organized? Yes. Clean? No.
@Z33Garage8 жыл бұрын
+Gage Sonny some men take care of their tools the same, or better than their cars.
@everss028 жыл бұрын
a vq35, probably needs new cam shaft position sensors lol
@Danu01c8 жыл бұрын
hahahahaha that's typical in these engines lol!
@stevenv7658 жыл бұрын
Lmao!!! I got that code like last week 😂
@flashhxo40858 жыл бұрын
just got that code today lmao
@Brian-wy4hg8 жыл бұрын
everss02 I've changed one of those in my max lol
@chriswf7 жыл бұрын
Spoken like a true VQ35 owner. Luckily they're not too hard to replace :D
@dead-or-a-lively50968 жыл бұрын
A wing that big should make 1000hp alone!
@MrRodillo1238 жыл бұрын
1000 lbs of downforce lmao
@dead-or-a-lively50968 жыл бұрын
Aj Rodillo If they put some ricer stickers on, It would be unbeatable. :p
@sulkmahidonkeydek34248 жыл бұрын
Josie Wales haha dont forget that a pink camo bumper chin spoiler makes it drift better
@cristianbautista38378 жыл бұрын
+SVTSn8KBite lmfao
@xan81488 жыл бұрын
And put a large roof scoop which is 500 hp added😄
@imSchwaggy8 жыл бұрын
my uncles prius has a 600hp NA turbo charged stock VQ35 came from a power wheels bmw i8 .
@Binford25008 жыл бұрын
Not as cool as my dads twin-charged, diesel Wankel rotatory, air cooled flat 6 out of a dodge neon, hooked up to an 18 speed out of a Peterbilt.
@Midnight_Rider968 жыл бұрын
well I have a honda 454 v12 twin turbo supercharged in my miata with axles from a John deer tractor and cvt from a go cart
@errorserver30008 жыл бұрын
+Alistair B is your last name Boyd?
@Midnight_Rider968 жыл бұрын
errorserver3000 nope
@Lucas-ij6kk8 жыл бұрын
hahaha look at all these kiddies talking about their small motors. that's nothing compare st to my naturally aspirated big block 12 cylinder twin turbocharged engine with individual throttle bodies.
@jameannohere8 жыл бұрын
Easily my favorite vq on the planet. I need to start making the big bucks to get the itb kit and an hr for my G. The symphony this engine cranks out... splosh. Good job Sasha!
@RastaRider8 жыл бұрын
5:49 That engine sounds like it's underwater!
@ArrtusMusic8 жыл бұрын
That's crazy! It's amazing to see just how much science behind working on cars there is and to see him make that much power on an N/A motor is truly incredible. If you tell any Z owner that someone made over 400 to the wheels on an N/A motor, they wouldn't believe you.
@speedacademy8 жыл бұрын
Sasha is leading the way with NA tuning. He has so many hours of R&D into that engine it's incredible!
@raduorban7 жыл бұрын
i love it when people say ... the motor is stock =))) has : high comp pistons, 3.7 crank, cams, ITB's ... but ... stock =)))
@xan81488 жыл бұрын
The 350Z is my favorite car I'm glad that I saw this😍
@misegades8 жыл бұрын
Those front fenders look amazing. I'm actually very surprised that they don't have any head work done...from what I understand, that's arguably the biggest single source of power in a build. If they're running higher compression, full exhaust, big cams, big ITB's, I would think the stock heads are a huge bottle neck.
@MrRodillo1238 жыл бұрын
Lmao yeah dude it cant be the most powerful vq in the world until the heads are done
@ALSALAZAR19858 жыл бұрын
Yup throwing HUGE TB's on stock heads with stock valve sizes is a waste you just threw away all the response and low end.. like throwing a huge tunnel ram intake on an chevy with stock iron heads... just not optimized. only solution is other heads or forced induction!
@misegades8 жыл бұрын
Well, I don't think we can say he threw money away...the guy seems to have a pretty good handle on what he's doing, and I'm definitely not going to be one to say what he might be doing wrong. My guess is that headwork is definitely in the cards...what I do know is that good head work can be very expensive.
@misegades8 жыл бұрын
All that being said, if and when he does get head work done, I can see this thing breaking 450-500 crank hp no problem
@ALSALAZAR19858 жыл бұрын
misegades still limited by the factory design of the heads. they wont be able to cnc too much and is anybody doing custom cnc work for these engines?. best solution is aftermarket heads, but idk who makes them for vq. maybe JUN in Japan??? idk... id just do the true and tested V8. looks is one thing, results is another.
@TheDruxlol8 жыл бұрын
my favorite car, thanks so much for keeping us up to date with this beast, would love to see some of it on the track.
@Swaygooy8 жыл бұрын
The ITB's look gorgeous on that motor
@TheBlizzbeast8 жыл бұрын
Too bad that the 57's didn't really work out, but looking forward to seeing it with 420+whp
@jacobbarba36058 жыл бұрын
OMG! The pain and sweat that you and your crew must have put in that beautiful car!
@austinlivingston3498 жыл бұрын
When the vq is opened up intake and exhaust, it's one hell of an engine.
@Etrician556 жыл бұрын
This guy is amazing at tuning..... he can actually hear knock and know when to put a limiter on the car by sound alone...... fuck hes good
@adodoes87706 жыл бұрын
this is a damn nice car, the engine seems so smooth aswell and makes an awesome sound. it's amazing how many stock or borrow from 370z components you still have and making 420whp on N/A is pretty nice. thats probably close to 500 bhp. many people don't know how to build Zs and many don't reaech these numbers with turbos, but you did it N/A good job! you should maybe consider getting built heads tho in my opinion it would increase the power that much more maybe even close to 450whp which would be crazy for a 3.5/3.7 l v6.
@bodhifyer8 жыл бұрын
That sound is just beautiful
@averyhuelsbeck31167 жыл бұрын
this thing is fucking guzzling that air. cool to see such an efficient design.
@jkflorida8 жыл бұрын
I had ITB's on a B16 and a K20 and tuning was always a pain. But they sound amazing!
@lt2508 жыл бұрын
Love Sasha he's the best, only guy to tune my car
@kevinho19228 жыл бұрын
velocity stacks, thats what theyre called, thank you!
@puprilla4 жыл бұрын
Love that u guys did this!! Love the vq and love it NA so much more reliable
@macklay26147 жыл бұрын
i love naturally aspirated power :D
@IntegraDIY8 жыл бұрын
Yeah definitely a restriction somewhere or fuel issue? Smaller intake will usually cause a gain in the low end and bigger will always open up the top end.. But like he said the TB's are not ported and some type of negative turbulence is being created
@rippinonap18 жыл бұрын
I heard stock heads and I thought those ITBs were a little much. I actually thought the air box might help with create the needed velocity from a bit of the Venturi effect
@zbangin7498 жыл бұрын
VQ sounds beautiful
@shlart73838 жыл бұрын
this thing sounds terrifying
@1jiveturkey18 жыл бұрын
Probably the best goddamned 350Z I've ever seent. Hats off to you folks.
@klajoye4818 жыл бұрын
This car is so sick. Keep up with the track videos, please!!!
@speedacademy8 жыл бұрын
We'll get some track videos posted soon!
@TheDefensivemaniac8 жыл бұрын
I have been keeping up with Sasha's N/A build for so long. I remember when the article came out on superstreet about how he was trying to squeeze the most juice out of his DE haha. I love these engines..it was just lacking so many things from the factory tho. HR ftw
@Contract32Killa8 жыл бұрын
And guys say high power N/A's are cake to tune compared to turbo. lol Another great video as always fellas! Keep em coming!
@speedacademy8 жыл бұрын
Thanks!
@MidShipCivic8 жыл бұрын
No you just decided to make up that on your own.... getting the most power out of something doesn't change or make it easier because it's turbo charged or not.
@Contract32Killa8 жыл бұрын
MidShipCivic Actually I didnt lol Ive seen people post and say that type of stuff more than a few times. Like "Turbos are so much harder to tune and keep reliable, thats why I stay NA" and some other bs about "turbo cars are never as reliable as NA cars"... I think a guy posted that over in one of the Z forums which is why I thought it was so funny. Some guys actually think NA cars are easy or require 0 tuning. Even if you go HP crazy.
@MidShipCivic8 жыл бұрын
The Project Channel Those are comments from enthusiast... they don't even make sense take it as a grain of salt, an NA motor will become far less streetable the more you try to get power out of it though. Unlike a high horsepower modern forced induction engine.
@geogeo82578 жыл бұрын
And you are a douche lol
@josephc11487 жыл бұрын
It snarls. TF. Never heard something like that. Awesome
@danielbargas33778 жыл бұрын
No one is going to come out of hiding until you prove at least 400 whp
@Blyatarina8 жыл бұрын
It's already made 420whp.
@danielbargas33778 жыл бұрын
+// “LightSpeedSnail” // prove it
@eamh20028 жыл бұрын
Stock Honda s2000 makes 420hp per 3,5litres :) Thats pretty nuts huh?
@eamh20028 жыл бұрын
Yeah theres some mad engineering done to the car to bring RPM so high and still the engine idles nicely and is a daily driver. In theory though +350hp should be possible from a 2litre straight 4 considering 1litre sport bikes have 180-190hp without ram air effect. Actually If you joined 2 aprilia RSV engines youd get a 2litre v4 with 360hp+..
@ivannosic95708 жыл бұрын
+eamh2002 Thats true.. i wonder why nobody try that
@cameronhemenway14558 жыл бұрын
That Z is nasty sounding! Damn that's awesome!
@teamthoj75958 жыл бұрын
that is one sick Z and a badass owner
@ADADIZZLE5 жыл бұрын
No longer a VQ35 but still very inspirational.
@doctorlobsteroctopus8 жыл бұрын
I feel like these cars catch a lot of flack in the car community, but I've always loved 350's and almost bought one. This is such a beautiful track setup, can't wait to see him track it.
@tylerd83778 жыл бұрын
350z are awesome :) very fun to own
@Miralem2088 жыл бұрын
Not a lot of people know about the HR motor. They think all the engines are the same haha
@RTCLR1237 жыл бұрын
This dyno dude is a pro
@JOEGGGJOE8 жыл бұрын
sounds sick. love the fender vents.
@joshash12218 жыл бұрын
that thing, when blipin the throttle, sounds like me gargling moutwash..:-) great car!
@traxxasslash957 жыл бұрын
I'm not an expert, but If the ports don't line up right then that's gonna be a huge power killer, lack of intake velocity is usually a low-end toque killer, not a power killer as the idea is just to get as much air in and out as you can on the top end. Also they should definitely give the heads at least a little port-match and smoothing if not crazy reshaping if you're gonna be going this far into it anyway.
@willovane7878 жыл бұрын
how much hp? im too drunk to watch this whole video right now
@adryanlaksana8 жыл бұрын
420hp..Get lit!
@aries66638 жыл бұрын
+Adryan Laksana (_volty_) .....just 450?
@aries66638 жыл бұрын
+Kaliyl Mkubwa 420*
@zackdoubleZ7 жыл бұрын
Unitarity they still have plenty of room to improve with high compression Pistons they run race gas which means they can run crazy big cams but not without porting up the heads and getting valves that can handle the lift, N/A v8s make 500 pretty easily with just a mild cam on pump gas lol but nascars and trophy trucks make 800-950hp N/A carbureted and there's boosted v8s that get into the 4000hp mark but that's obviously an engineered race motor, the vq making 420hp is pretty good but like he says it's still a basic set up 450 should be easy after the heads are worked other wise that's a lot of money and time for 140hp gain
@zackdoubleZ7 жыл бұрын
Unitarity I agree race gas is for the track, gotta pay to play if you know how long all your engine parts last and rebuild accordingly reliability usually isn't an issue but obviously the price will be driven up, winning isn't cheap lol but the 900hp push rod v8s can rev to 9k but aim to stay in 8k range and there are drag race engines that rev much higher N/A not cheap or for the street
@matari71838 жыл бұрын
Awesome car. Keep posting
@BlakesGarage8 жыл бұрын
BEAST!!!
@MyBlkG357 жыл бұрын
nice project. what is the timing you end up with throughout the power band? good luck guys!
@Cheeseypoofs856 жыл бұрын
I was gonna ask if the exhaust valves and exhaust itself was free flowing enough to handle the ITBs but you answered it toward the end. Good luck on the road to 450whp n/a 👍
@slow2by2z8 жыл бұрын
Few questions. Stock sized valves? Have they considered slightly smaller valves to increase inlet velocity? Doesn't seem like it's gasping for air flow but would have to see the charts and etc. Hope they get it running right!
@RosserNFT8 жыл бұрын
VQ for LIFE my 06 350Z at 38K miles still going strong.
@_gskyline_55128 жыл бұрын
38k miles, thats it? Not sure if you're joking or serious.
@dancarlos12168 жыл бұрын
+_GSkyline _ Yeah that's nothing to write home about. But I have been quite impressed with the VQ35DE in my dad's 03, very nice power band and is plenty quick for most people. It's too bad that everyone overlooks the Z cars just because they only think a car is good based on Internet HP hype.
@RosserNFT8 жыл бұрын
mad serious, got her over 2 years ago at 17K miles, I was 22 in Virginia beach now 24 in new Orleans. Going to pass her down to the kids one day.
@victorpla298 жыл бұрын
My 2003 350Z is 160k+ and is Going Strong
@_gskyline_55128 жыл бұрын
+Victor Pla lol same here.
@bingoberra188 жыл бұрын
Need more cams, need 275lbft @ 8600rpm to get 450hp. Does it really need 450 though? 315lbft should be possible with 3.7l so get that at 7500rpm and you got the 450.
@Curtis19007 жыл бұрын
Nice video so the widebody kit actually helps the aero ?
@ilketama59828 жыл бұрын
5:15 sounds like lion
@ganeshgajavelli14876 жыл бұрын
right?! This thing sounds insane!
@waixis8 жыл бұрын
Formula Renault got their VQs all the way up to 530hp, but i think they usually ran them at 370-450hp mark. Renault doesnt use them anymore(switched to v8) so you might be able to pick one up from them, they call them V4Y RS
@speedacademy8 жыл бұрын
Cool! Thanks for the info!
@626seb8 жыл бұрын
You guys should make speed academy license plate frames. I'd buy one!
@SpiffyBmx5 жыл бұрын
Now it really has trumpets
@boostaddict_6 жыл бұрын
Yeah, I want ITBs on something now. And I now know that I can 3D print them instead of having to buy some or machine them. I'm thinking '85 CRX, D15A2 with a ZF head.
@kevin_delaney6 жыл бұрын
Basically stock engine? So are the cylinder heads and cams any different?? It's great if the intake is nice and big but makes little to no difference if the volume of air that enters and exits the head remains stock and the physical cam profile is still what the street VQ's are. Neat, curious what you did wrong though. I'd imagine with fluid dynamics that having an enclosed intake system, where Bernoulli's equations come into play, will always deliver more power.
@danimal8655 жыл бұрын
Nothing sounds better than independent throttle bodies.
@trucavalier7 жыл бұрын
Best engine i ever owned miss my VQ35
@brandonwright20676 жыл бұрын
Sasha is super smart this was nice 👍
@TheDruxlol8 жыл бұрын
Love to see my motor (HR) being built. Does he have a mod list/website/social media with this car?
@speedacademy8 жыл бұрын
Onpointdyno.com
@TheDruxlol8 жыл бұрын
Thanks
@htcooley048 жыл бұрын
na's are still so cool with the individual TB
@rrascon88 жыл бұрын
Much Respek to Sasha!
@SteeltechPC4 жыл бұрын
Did you guys do an electronic fan conversion? If so, I'd love to see how you did it. Great work guys!
@ToggleSwitch138 жыл бұрын
Hey! Just got a quick question for you guys, if you feel so inclined as to respond :) I'm doing a basic rear mount turbo build on a Maxima at the moment, and was just wondering, how did you meter intake air on those ITB's with no MAF? Are you running solely off wideband feedback for fuel trim? Thank you!
@speedacademy8 жыл бұрын
It is tuned by TPS but in your case you can run a MAP sensor and IAT sensor which should be enough. Ofcourse you'll need an ecu capable of tuning that.
@royyang898 жыл бұрын
Good progress!! It's always good to experience new things! Keep it up! I would say probably have too much air flow from the runner. Maybe down size to 55mm tb?
@luishq99458 жыл бұрын
Really cool man!
@robertgibson54755 жыл бұрын
Im 370 all motor in my 04 g35. Going small turbo this winter
@CawkMaster90008 жыл бұрын
AYYYY 420 BLAZE UP!!!!
@lord-REDACTED-8 жыл бұрын
I knew that name was familiar, Sasha Anis had a thread going with a 240. Everything I've done to my rx7 has had roots from that. Tell Sasha a fan said hello!
@speedacademy8 жыл бұрын
Yes! Sasha used to own an S14 way back when, we'll tell him you say hello!
@lord-REDACTED-8 жыл бұрын
That's awesome! Thanks!
@jrue61058 жыл бұрын
Sounds pretty damn cool
@Firion138 жыл бұрын
Couldn't you run smaller diameter horns aka smaller venturi to increase velocity? that's what lots of guys do with Weber carbs on various setups.
@filiphenig60632 жыл бұрын
the engine sounds like an unholy spirit went insie of it (love it)
@sambasilio28968 жыл бұрын
a rocketbunny+NA+track car= Happiness
@DanielPelayo9517 жыл бұрын
Congrats Sasha on the Super Street magazine cover👏
@Sdm5838 жыл бұрын
Any idea where I can get throttle bodies and high compression pistons for a VK56 build I'm starting
@mikemike1558 жыл бұрын
Is there a way we can see you engine build list? If not it's understandable but I'm just very curious.
@raymondkelderman71398 жыл бұрын
love the ITB's
@wilkimhernandez8 жыл бұрын
pretty color
@samuelrogers57968 жыл бұрын
Camera man putting him on blast.
@wolfy90058 жыл бұрын
Maybe it will pick up some top end on the track if you can get some more air forced up those hoses, to help compensate for the velocity issues?
@speedacademy8 жыл бұрын
It's not an air entering problem, its exhaust gases exiting that seems to be the issue.
@wolfy90058 жыл бұрын
Easy fix, straight off the headers?
@McGrathMotorsports7 жыл бұрын
this is an HR? pretty nice with no forced induction! My DE pushes 450 410 RWHP with the vortech V3, SCI tuner kit. Pretty cool wrap as well
@speedacademy7 жыл бұрын
Yes, that's an HR engine.
@clonecaptian8 жыл бұрын
port & Polish the heads and get oversized valves and bigger cams that'd help make more power
@slow2by2z8 жыл бұрын
Bigger valves do not always = better. Engines, especially of the NA variety, require lots of testing to squeeze the absolute most power from them. I am curious about how much the length of the velocity stacks plays a role in this engines performance. You are correct in that the head needs to be worked to fit the new throttle bodies though.
@clonecaptian8 жыл бұрын
Ik this but they said they need more airflow and bigger valves will give them exactly that and I beleive that the length would effect the actual curve more then overall torque and hp
@slow2by2z8 жыл бұрын
+ZEEPOxWiZARD iix From what they are saying, it's not the amount of air but the velocity. If the engine was gasping for air, then the air boxes would add to this problem and cause a greater loss in power. At least that's what my mind thinks the logical conclusion is. Would be great to see a comparison on this engine with larger vs smaller valves and inlets. Heads on NA engines are fickle and 2 engines built by the same shop using the same parts can like different head work. If you make a larger intake tract with the engine demanding the same amount of air, you will necessarily lower the air's velocity through the tract. This can cause the engine to produce less power due to bad air/fuel mixing along with other factors.
@choppaj2478 жыл бұрын
Good to see Sashi and kels. haven't seen in years. I wanted those SG headers but missed out and opt for PPE. smh
@Max236538 жыл бұрын
why not just get the GTR heads
@boostedbuiltgarage8 жыл бұрын
A nice turbo will help add velocity for those throttles😉
@speedacademy8 жыл бұрын
NA power for this beast. Throttle response and reliability is KEY for endurance racing.
@jhonathanjhaimy74458 жыл бұрын
My friend, who prepared the car and who did the roll cage? thank you!!!
@jaimelunavr6parrot8 жыл бұрын
Love the car, sound, preparation.!! Awesome job!!! Keep going and get those 420 Sasha!!!!!
@TopMaphis8 жыл бұрын
The noise it makes... omg
@1816678 жыл бұрын
I believe Endless built an actual VQ to over 400HP years ago...I'll see if I can find the article.
@1816678 жыл бұрын
Super Street mentions driving it but I couldn't find the article. www.superstreetonline.com/features/news/sccp-0807-all-motor-vq35de-top-shop-challenge/
@michaelwood44447 жыл бұрын
so they are trying to make the most hp without turbo or supercharging?
@X7Rotary8 жыл бұрын
Does anyone know what color this is? I would very much like to know. Looks very similar to 2004 ford mustang electric green, but the clear coat has a lot more blue in it. Thanks in advance!!
@TheLightningwrath5 жыл бұрын
What are those white things sticking out the engine?
@FairladyS1305 жыл бұрын
Very informative video, the way most of this ilk are not. Great work by all involved.
@jannos0118 жыл бұрын
Binford2500- Well MY dad's car has 40000 off the dipstick;lowered door handles;chromed grease nipples,braided choke,carbon fiber boot release,3d printed steering wheel,real imitation pleather seats,direct turbo fuel injected down draft carries with platinum steel pressed 10" rostyles 😂
@fantasticpotato8 жыл бұрын
I NEED YOUR ADVICE! Because I am a Motorsport-loving teenager, I want a fun, fast, cheap and reliable 1st car. I would ideally want to upgrade it into a track car. I've decided to pass on the Mazda Miata because I am not going to pay for the entire car myself. I am planning on getting an s2000. Is this a smart purchase? And if so what upgrades should I focus on and in what order? (I have a small budget but I do work)
@nigelsenchez8 жыл бұрын
Focus on driver training. Track time. No amount of upgrades will make you a better driver. As for car doesn't really matter as long as it's fun.
@fantasticpotato8 жыл бұрын
I am attending a racing school this summer. I also forgot to mention that I wasn't going to upgrade the car IMMMEDIATLY. I would work on the car through out college and beyond. The reason I am looking at s2ks is because I feel like they are easy to learn on (I already drive my fathers BMW M4 stick without problems). So when I do get enough cash, what upgrades shall I purchase first?
@Tyler-nh7dx8 жыл бұрын
$2000 Miata.
@nigelsenchez8 жыл бұрын
+fantasticpotato something along the lines of. Bucket seat, steering wheel with quick release hub, tires, coils, diff, safety stuff, reliability stuff and don't forget gass. There's your basic upgrades. Don't worry about power. Learn how a car works inside and out, and the physics behind it, and the rest is history.
@nigelsenchez8 жыл бұрын
+hello jaja how could I forget, BREAKS.
@SlowJuviaZ8 жыл бұрын
i still want those long tubes headers on that Z T-T
@K20EF88 жыл бұрын
I dont know anything about VQs but I doubt a change from 53.5mm to 57mm ITBs could rob 40whp. If anything the top end should peak higher with a loss in the midrange. at 420whp the motor is making 70whp/cyl. In the Honda K-series world, most motors making 70whp/cyl with ITBS run 57-60mm Kinsler