What type of CYLINDER HEADS are these? Can I use them?

[Ronnie's.930]

One thing that some of you guys are forgetting, is that like Cole, Brian likes to do it "old school".

[RarlyL8]

I'm in no way opposed to EFI from an engineering standpoint, and am rather fond of Haltech's simplicity. EFI is vastly superior to mechanical fuel injection. What I am opposed to is flaky software and tuners who charge stupid money and hold the owner's car hostage for years. I see this @#$%^ all the time. The last fellow I worked with needed a full modified Euro CIS setup after spending 30 grand on empty promises from a very well know tuner (who never visits our forum).
So no I won't be going EFI unless I do it myself.

The cylinders, I was told, are 3.3L but I have not measured them. I'm not going to use these heads on my street engine and I'm not a race guy so they'll go back on the shelf. I may however used the ITB's, if for no other reason than they really look cool.

[RarlyL8]

I dug out the other stuff that came with the heads, ITB's and aluminum hats that attach to twin intercoolers. Would love to have seen what this engine looked like all dressed up.

[nocarrier]

Nothing wrong with old school!

Wow! That is one sweet looking setup!

[WERK I]

Brian,
I would think the engine would be an absolute dog up to 3500RPM with those heads. I would suggest bumping your compression to 8.0:1 to get back some driveability.
Regarding applying vintage racing parts to today's vintage engines........you can do better. If you compare the 3.2l heads to the 934/935 era heads, you'll find some distinct similarities. Larger exhaust ports, larger intake ports, both breathing much better than the early 930 heads. With lower compression for turbocharging, something had to done to get port velocity up with the lower compression. Hence, the small port 930 heads. Remember, VE goes up with an increase of compression ratio.......to a point.
IMHO, get some 3.2 heads for the grey ghost or better yet, port your 930 heads to 3.2 specs, twin-plug, bump your compression to 7.5/8.0, put some wilder cams in, tweak/monitor AFR's and enjoy the show.

[RarlyL8]

Yes that pretty much is the plan. I'll likely message the stock 930 heads and call it a day. I have the cams which may go in next week while the tranny is out for ( another) clutch change ( lesson learned on big clutch packages).
I have specific goals for this engine and it looks like these heads are not a good fit with the package needed. I've been tossing around the idea of building a custom intake, maybe take another look at that.

[Tippy]

Alright Brian, I'll install MegaSquirt 3 into your car and tune it the best I can for a set of divided equal length 1 3/4" headers with twin WG pipes.

[Ken911]

Yep there to go another set of 1 3/4 twin scroll headers.

[JFairman]

Originally Posted by RarlyL8

I dug out the other stuff that came with the heads, ITB's and aluminum hats that attach to twin intercoolers. Would love to have seen what this engine looked like all dressed up.

I've never seen individual throttle body injection stack for CIS before. It looks well made and appears to have been installed on a motor in the past with some welding repair on the middle stack mounting flange, what is the history of it? It looks like casting is there for a second set of injectors.

With the growing EFI options available these days and the throttle response you get with no slow reacting restrictive air flow meter in the way it doesn't make much sense to mess with it but you already have it and it would be cool to install it and make it work.
Where would you put the airflow meter and fuel head though.... and I doubt there would be room for an AC compressor (if thats important) with it.
If it has racing history it is probably worth some money now.

[RarlyL8]

Yes Ken there have been several requests lately for giant tube headers, I got a call just last night for a set. I'll have to re-visit the costs.

This ITB setup has been on an engine as a couple of the flanges are cracked. It's too clean to have spent much time though. The injectors are -009 Euro and appear brand new which is a plus. I have zero knowledge of what this setup is worth as I did not plan to sell it. Now I have a couple folks inquiring.
Any vintage racer guys out there have an idea on a fair price?
Thank you all again for your help with this. The decision is clear to me now that these heads won't work with my build.

[JFairman]

Is there a large vacuum hose connection below one of the throttle butterflys for the power brake vacuum booster on the other set of injection stacks? Without that you won't be able to use the stock 930 master cylinder the way it's designed.
I've had sidedraft Solex and Weber carbs on BMW 2002's and the origonal power brake booster and master cylinder worked fine off the short intake manifold runner from just one cylinder.

[fraggle]

Those are some pretty bits, hope you find the right project for them someday.

[jsveb]

This is super cool Brian.

Good luck, and please keep posting.

[RarlyL8]

If I get some time this weekend I will install the setup on my Evil Engine (you old timers remember that one?). I am curious now as to what the setup looks like assembled.

Jim yes there are bosses on both banks to run vacuum operated devices. It looks to me like they plumb together possibly to balance them out. I do plan to have one of our master welders repair the cracked flanges as apparently someone installed them with gorilla arms.
Good point about the A/C, I went to great lengths to be sure my "new" car had A/C and I'm not giving it up!
The Air meter assembly is moved like Cole did. My plan was a bit different as I wanted twin turbo symmetry.