L6 DOHC

[Riceburner]

Here's an interesting little blog that came up on hybridz

 

http://spark88.blog.fc2.com/blog-category-50.html

[C.A.R.]

Lots of work for little gain.

 

'Cool' factor is high, however.

[gav240z]

Very cool as close as most would get to an OS Giken twin can.

[Six_Shooter]

Lots of work for little gain.

 

'Cool' factor is high, however.

 

Is it not just an RB(26) head? This looks to be a LOT less work than the one guy on HybridZ did to get a DOHC L-series, by cutting apart 3 KA heads...

 

I'm not sure the gain would be "so little". There is a lot of potential and benefits there with a crossflow DOHC head that a none crossflow wouldn't have.

[C.A.R.]

Is it not just an RB(26) head? This looks to be a LOT less work than the one guy on HybridZ did to get a DOHC L-series, by cutting apart 3 KA heads...

 

Of course, but the way I read it, that KA conversion was more of a engineering exercise to produce a TC cross-flow L series, than than anything else.

 

I'm not sure the gain would be "so little". There is a lot of potential and benefits there with a crossflow DOHC head that a none crossflow wouldn't have.

 

Such as?

In an NA application the performance benefit of a TC, 4v head onto an L-series - IMHO - would not justify the added cost of engineering to make worthwhile.

 

[Six_Shooter]

Of course, but the way I read it, that KA conversion was more of a engineering exercise to produce a TC cross-flow L series, than than anything else.

 

And what was the point of the cited blog in this thread? It would seem that the same thing was desired, a crossflow head, and DOHC, just like the KA monstrosity, with way less work.

 

Such as?

In an NA application the performance benefit of a TC, 4v head onto an L-series - IMHO - would not justify the added cost of engineering to make worthwhile.

 

The fact that the intake is not directly above the exhaust is enough reason for me, It seems the most difficult aspect of this conversion was the timing chain set-up.

[d3c0y]

I wonder what the chain timing setup is off? I think the way PMC did my RB26 head looks easier, converting the L bottom end to a timing belt and dry sump. That way you don't have to make custom rocker covers either. The chain setup is cool though.

[C.A.R.]

And what was the point of the cited blog in this thread? It would seem that the same thing was desired, a crossflow head, and DOHC, just like the KA monstrosity, with way less work.

 

I'm not disputing the owners criteria. He obviously has his own reason for doing it. Like I said "The cool factor is high".

 

The fact that the intake is not directly above the exhaust is enough reason for me, It seems the most difficult aspect of this conversion was the timing chain set-up.

 

Each to one's own, but that reason should not be the only one to consider when doing such a swap

 

Annnnnd this is the sort of conversation that will just keep going around & around and around... So I'll stop posting in this thread now

 

[Six_Shooter]

I'm not disputing the owners criteria. He obviously has his own reason for doing it. Like I said "The cool factor is high".

 

Each to one's own, but that reason should not be the only one to consider when doing such a swap

 

Annnnnd this is the sort of conversation that will just keep going around & around and around... So I'll stop posting in this thread now

 

Why shouldn't the reason I stated be enough to do it? Like I said it's more than enough of a reason for me to do it. For some people one reason is enough to make a project desirable. I didn't realize there was a minimum number of reasons needed to embark on a project...

 

If it wasn't for the fact that I had a different engine plan in mind when I bought my car, I likely would already have this swap started.