Harley-Davidson Twin Cam head porting
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- Опубліковано 14 жов 2024
- Porting of 103” hd heads. Full process./Полный процесс портирования голов мотоцикла харлей-дэвидсон
#harleydavidson #porting #motorcycles #softail #roadking #electraglide #sportster
Thanks man that was interesting. Like the guy said that spring compressors pretty trick man!!!
Great video.
Don’t listen to the nay sayers who don’t have the balls to take on a mild port clean up like this. Definitely an improvement over what was factory.
Anyone can see that even without flow numbers.
Badass! Nice work. Dig that shop made valve spring compressor. I made mine out of a c-clamp and it works but I will toss it and make one like yours. Fkn love it!!
It's been many years since I rebuilt a top end so I have to ask, when did it become ok to have the valve face bounce all over the seat during lapping?
Spreads the lapping compound so it wears even when Doin it….
Yes you do lift away regularly.
Adding a smidge to the top end often looses a mountain of mid and low. For a big lazy twin on the road it's not always a win for the application.
Even when I did nothing but recon cylinder heads day in and day out I lapped by hand with a stick. It's a gently does it till the spec width of frosted. With the seats and valves cut and ground accurately it's hardly any lapping anyway. The stock TC exhaust port sure looks like it needs cleaning out to the gasket and header but I'll leave mine as it works great as is.
HD make plenty extra by leaving things half finished.
Круто, Рома!👍
Давно искал ролик на эту тему с процессом от начала до конца. Спасибо!
... uh... does that motor even have compression after this?
He put grease on the valve seats
I want to know how you made that valve spring compressor!! That’s amazing
Just weld it)
Haha now one that will work in an early twin cam dyna in frame! I want get the early race springs out of the heads since I got rid of the tw6h cam set for fueling 525's
Отличное видео!
So what improvement did this work yield? Was there any before/after flow numbers or before/after dyno numbers? If there is no quantification of the work performed then it would be totally useless! Not to be disrespectful because it looks like a nice cleanup job and fresh valve lap. Do you get any noticeable improvement with this work?
Of course there was an improvement ! A guy in his garage can go in with a sandpaper roll & improve the flow to a stock head ! As for flow numbers you only get that when you pay someone a huge pile of cash ! Quantification WTF !
@@leonardstanford1877 if a guy knows wtf he is doing he may get some improvement. Or he could cause flow interruptions and slow down port velocity. Most garage hacks don’t know shyt about fluid dynamics. Oops that engineering nomenclature may be too much for you! 😂😂😂
Kinda completely agree when I’ve built heads on 4cl rice burners I found the guys who just die grinder the hell out of the ports damaged the heads surface finish on intake vs exhaust was important and if you took too much out the combustion area you’d effect the compression of the pistons you’d just spent ££ on
$50 I will put a Harley head on the Flowbench
Damn Rights glad to see your operations loo lots of inspiration kid'o I saw a.lot
I love to flow test heads done like this even against stockers
So many stuff you got :) I love you job
Thanks
Хороший видос
I like them valve spring compressors where did you get them?
I made it by myself
Dont need to take much metal , for improvement its enough to take all manufacturer imperfections , just smooth them out if you know what you doing
Looks like he knows what he’s doing
опять залип)
Вопрос) учитывая, что все вытачивается вручную и на глаз, как можно убедиться в том, что обе головы будут иметь один и тот же объём, и пропускная способность будет идентичная? Я нуб, просто интересуюсь. Видел в штатах они на станках все протачивают, максимально идентично.
Nice work bloke
DIY cool job
Well... the valve spring compressor was cool at least. But id definitely recommend you NOT "port" or "rebuild" any more heads.. good gawd!
Whats wrong with it ? Show us your work ? I bet you cant even take it apart and put it back correctly😂
Spring tool ? Where to buy or get one?
... NOTE ...
You might want to INSERT that this is a TWIN-CAM Head
In the TITLE Intro
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Thanks
How would you mistake it for anything else?
Just here for the algorithm.
you call that done, that's why I started doing my own work. I don't think you even cleaned the grinding paste off.
That's Break- In Grit !!
Wanna know why your combustion chambers ar3 all carboned up? Poor combustion from poor quench distance. Set your quench distance to 0.040” and enjoy better combustion efficiency and cleaner chambers/pistons....
Seems sketchy but, if she runs she runs.
Seen worse done and still ran.
Glad you're not my head Guy
Your valve job killed any so-called porting you possibly did you need to go back to flow bench 101
Hmmmm....
Yikes, too much wrong to mention
wtf
Music sucks.
Not exactly proficient. It's easy to take a Dremel to metal and hog out what you feel is in the way, bigger isn't better. I was hoping there would be a little more understanding/tutorial than just showing people how to hog out a head
Relax - - it's 63 Horsepower.