6 CYLINDER INLINE POWER!

I go thru some of the strengths and weaknesses of these 3 engines plus a comment about the RD GTR engines and a last impression about why straight sixes have great torque!
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[@stuartcornall5306]

Datsun L heads - I've been cutting and welding these for 35yrs. You're right, the centre ports are far too big, some time with a grinder, TIG and 4943 rods makes for a better flow balance. These heads respond very well to raising the port roof considerably after the floor and SSR are welded. Chamber reshape helps economy too. Shooting for mid 700's on this L28 build (up from 620hp). Nice video Ben

[@benalamedaracing2765]

Thanks Stuart and I will post a video on all three of them in a detailed format. I just was shown an aftermarket Z head from Japan and I told the owner, why is it still casted with the same large center exhaust ports? Anyway not surprising to me because I saw another aftermarket block with known issues of oiling problems, they were doing 100# or more of oil pressure! The aftermarket fix was an aluminum block with the diminutive main oil galley still like it was from the factory casting!!! I wonder who is actually designing this things if they do not race or value the opinion of those that seriously run them at the track not at the hamburger joint.

[@Bbbbad724]

The Ford FE. I use a line off of the filter pad drill the front feed to the center main feed that runs the length of th the block front to rear. The front and #5 are fed from the enlarged center feed with 2-3-4 plugged at the top, so that 1-5 are well fed. The 2-3-4 are fed with lines being priority lines that come from the pad and feed the camshaft after the main. You can balance the pressure tic to top and valvetrain. I have pushed my FEs with the enlarged and external lines to 8500. Rpm’s.

[@benalamedaracing2765]

Thanks for the FE tricks!

[@skylinefever]

I love when someone comes up with various methods. The Buick Big Block and Ford Y block also had limitations that people had to work around.

[@davegt27]

First

[@benalamedaracing2765]

First or last on race day? lol

[@ВасилийУткин-л4н]

Thanks for lesson!

[@benalamedaracing2765]

Glad it was helpful!

[@shanerorko8076]

What no Barra haha.

[@benalamedaracing2765]

Shame on me! lol I am sure it is a well designed engine or has potential!

[@TheMajictech]

Years ago I had a 260z with a 280 engine and an automatic. Got tired of the damn floats in the stock side draft carbs not staying set and flooding. I made an intake that came out and down with exhaust tubing from the stock intakes to a Rochester 2 barrel. The thing made so much torque with that long skinny tractor looking intake, it started shearing flexplates in half around the crank bolts. After a few of these I welded 2 flex plates together. That thing would actually do a burn out, chirped the tires hard going into second. It would get 27-28 mpg if you could make yourself drive it right, and hauled A55. 😅

[@benalamedaracing2765]

Long runners on an inline engine means big torque! Glad you had fun with it.

[@randallmason9687]

The Chevy Atlas six from the Trailblazer is starting to get some attention. I would have loved to have had a head like that on my old Ford 300 six!!

[@benalamedaracing2765]

That would be cool!

[@blindabinda1234]

The RB suffers from feeding the head too much oil with not enough draining capacity. There is a mod done on the back of the head near the bellhousing that makes an external drain from the head to the block.

[@benalamedaracing2765]

Thanks for the input and I also noticed the main oil well diameter feeding the crank is much too small compared to the 2JZ and Datsun Z plus the BMW's. I feel this is a major defect and there was another famous racing engine that resorted to what they call a "side oiler" block that had similar issues.

[@blindabinda1234]

@@benalamedaracing2765 yea that seems like a horrible problem to have. Luckily I guess I got a sbf.lol

[@georgedreisch2662]

The BMW head does look awesome in potential, for architecture. While flow numbers are useful, to a point, are there any dynamometer comparisons of comparable setups? I’m thinking, a dynamometer comparison to include BSFC, would be revealing. Have you seen David Vizard’s recent video, where he’s introducing the idea of a polyhedral chamber, (alternately staggered size valves), to foster what he is calling, “twirl”.

[@benalamedaracing2765]

Yes and you can do a little of that by changing the intake valve job or seat angles on one side only and not the exhaust.

[@georgedreisch2662]

@@benalamedaracing2765 was thinking along the same lines, but, accomplishing the difference in port energy / discharge coefficient, by having two different throat percentages, 86% and 88%? Nothr thing mentioned, was sinking the exhaust valves, to discourage over scavenge during overlap. Thinking a better approach might be to drop the chamber roof, to allow for wider departure / top cut, and using the resulting ridge at the intersection of the intake and exhaust top cuts to discourage the over scavenge. Thinkin’ generally, most 4 valves would benefit from the dropping the roof to widen the top cuts, as most 4 valve heads seem to have a minimal top cut / departure angle, and have seen several where the seats actually “sit proud”, several thousandths.

[@GrandPitoVic]

I never did like a head with the intake and exhaust on the same side.

[@benalamedaracing2765]

Same here!

[@jasonschreiber6458]

What bmw is that? Looks like m50 style exhaust stud pattern , looks like a s54 in the first picture ? You mention aluminim block bmw's ? (S54 is iron ) is it a euro s50/s52? im just confused what engine or combination of bmw engines you show. Also worth a mention , the 2jz has a taller deck height than a bmw , the bmw motors have short rods / poor rod ratio by comparison. Bmw's bigger than 2.8L like to load the cylinder wall/ oval bores.

[@suntzu5836]

Learning something new! ....Ben's the man!

[@benalamedaracing2765]

I kind of figured something different and see if it gets views as well as the usual V8 stuff.

[@ronaldasuncion1643]

Thanks a lot boss for sharing your years of experience to us…

[@benalamedaracing2765]

Thanks as well to both of you there! You guys still at the shop most days?

[@dalewarriorofthesea3998]

Barra from Ford Australia definitely worth a look 2000 rwhp +

[@benalamedaracing2765]

I have to see one of them up close...

[@dalewarriorofthesea3998]

Ford Australia shut down in 2016 after 91 years These engines were designed and built here up to that point Coming in a factory turbo version from late 2002 These engines modified are rockets Some have been imported into the US

[@edgarmoreno3100]

Ben, you’re amazing!!!Unprecedented new knowledge. I’m speechless with amazement. You need to open a University / school

[@benalamedaracing2765]

I was approached repeatedly by one of the legends of our sport Joe Mondello, to do R&D and teach at his Racing School in Santa Maria. The man was very good at what he does big time legend of course.

[@dalewarriorofthesea3998]

Poly quad head /valve design can help create swirl in a 4valve head Larger and smaller inlet valves oppose smaller and larger exhaust valve sizing

[@skylinefever]

That, and some used a different cam profile for the two intake valves. The Honda Civic HX was it.

[@benalamedaracing2765]

I feel the intake valves will get assistance with different diameters or different valve seats perhaps steeper @ 50* instead of the traditional 45* from the factory on just one valve. This said, I see no reason to swirl the exhaust as it accomplishes basically nothing. No need to place any kind of mixture motion, we just need to scavenge it out of there asap, energy spent and used so we must discard of it as fast as possible. We are not trying to keep the mixture together or keep them in suspension they are all basically ignition waste gases.

[@dalewarriorofthesea3998]

Cool Really enjoy learning from people with true engine smarts Thanks for sharing your wisdom and taking the time I'm a body and paint guy with an engine fetish Much appreciated 🙏

[@Trev-fl1oe]

Wow very interesting mr Alameda. Even 2jz ports are more layed down then bmw similar to my 2 vavle intec head .bottom end off my ford intec 6 has 7 main bearings caps plus a griddle which ties in with the bottom end so it like a 4 main cap bearing.mr Alameda have do you know that the inline 6 is the only wngine that double whips .lucky i live in Australia mr Alameda or i be sweeping your floor for information.sir to say your knowledgeable is a understatement one smart cookie.peace

[@benalamedaracing2765]

Thanks Trev and appreciate the kind comments.

[@ВасилийУткин-л4н]

Thanks for video!

[@benalamedaracing2765]

Thank you as well!

[@CanIbeFrank]

Would you be interested in working on something that you never have before? I want to make max NA power out of a 5.5 liter dohc v8 with itbs

[@benalamedaracing2765]

Depends on the engine. What have you got planned?

[@Bbbbad724]

Hey Ben! 6 in a row can make t

[@benalamedaracing2765]

Yes specially the 2JZ.

[@CarsFoodWeed]

ah i thought this was about the ford six

[@benalamedaracing2765]

Unfortunately no sir but the concept and applications comes very close.