Kaemari/Harada vs Jenvey Inlet Manifold port sizes

[russandra]

I am chasing a little info on the Kaemari/Harada manifold verses Jenvey Manifolds.  Currently building a L28 F54 Stroker (88.5mm bore and 83mm V07 Crank).  I have a 39mm port size on the N42 head and I am going to use the Tapered 52/50/48 ITB's from EFI Hardware with a Haltech Elite 750 (unconfirmed).  Most likely when I get the Inlet Manifold I will finish off the port size to match them for even flow..  The inlet manifold and head will get flow tested to ensure even CFM per cylinder.  A custom tuned length set of Headers will be built by a good friend who is a race engineer.   This engine should conservatively put around 220 to 230 RWH as I am keeping it relatively mild ie its not one of LCR's Ferrari Engines. 

Kaemari/Harada manifolds come in both small port and big port versions.  The Jenvey Manifolds have a large port, 50mm at the Inlet and 40mm at the head.

Does anyone know what the port sizes of both versions of the Kaemari/Harada are?  I Haven't seen one in the flesh as yet to measure them.   I can buy the Jenvey direct for the UK but they are not cheap at around $750+ plus shipping and they are a big investment.  I think the Kamera/Harada are a little cheaper, what is the best way to obtain them and how much? 

Any help from the L series boffins will be appreciated.

[gav240z]

52 minutes ago, russandra said:

 I think the Kamera/Harada are a little cheaper, what is the best way to obtain them and how much?

https://www.rhdjapan.com/kameari-intake-manifold-kit-l-type-44mm-l6-rod-type.html

https://www.rhdjapan.com/kameari-intake-manifold-kit-l-type-50mm-l6-wire-type.html

I haven't measured both ends, but I have a small port in the box here. Haven't unwrapped it yet.

I think seller "happy_pizza" on Yahoo! Auctions sells them at a slightly better rate than RHDJapan.com but it sort of becomes a much of a muchness price wise once you factor in broker and shipping costs etc..

You can also find an assortment of old used L6 manifolds on Yahoo! Auctions for L-series engines, many different variations over the years.

I personally don't see the need for the Jenvey manifold unless you plan to go with their EFI set up.

[260z blues]

Bought my kameari one just a few weeks ago from them directly.  Slightly better deal than rhdjap site and easy to deal with. 

[russandra]

Can you measure the port sizes for me. Did you get the big port or small port. 

[gav240z]

2 hours ago, russandra said:

Can you measure the port sizes for me. Did you get the big port or small port. 

I would have to take it out of it's sealed box LOL

I put the small port on my 72 240z.

https://photos.app.goo.gl/HdvZdBDupPxjGZgt6

I did measure my small port on the 72 240z when I had it, but I can't recall the sizes now.

To quote @Lurch

On 7/20/2017 at 8:00 AM, Lurch said:

Up to 300hp - Harada small port.
Over 300hp - Harada big port.

[260z blues]

Have mine in storage but will get measurements if no one else dies first.  I got the smallport item

[gav240z]

1 minute ago, 260z blues said:

but will get measurements if no one else dies first

Jeebus, I certainly hope not!

[260z blues]

Lmao. Fucking autosausage

[russandra]

Thanks guys, I reckon by the time I get my 240Z completed I might die.  But bringing a car back from its death could have the tendency to so that.. 

Also I am thinking more of keeping the rod operated throttle instead of cable.  Thinking it may look better and if Datsun didn't think it would work well they probably would have gone to cable to save a bit on money anyways.