1976 914 2.0, The project continues on Options

[Dave_Darling]

Going to a 78mm crank is a more complicated thing than you might realize at first. At least one of the cam lobes interferes with at least one of the rods at that size. So you have to use a reduced base-circle cam, which also has some complications.

It's all doable, but it's definitely not a bolt-in process.

--DD

[colingreene]

Ah, so much for that.
If its dealing with a reduced cam then ill step down to the largest i can get away with before that becomes a problem
you dont know what size that might be do you?
76 or down to a 74?

Also thanks for the bumper info. I Appreciate it.

[euro911]

Tuna Can is another good T4 reference site. Here's their displacement chart: Click here

[rhodyguy]

read this a few time and still not sure the route you want to take.

you're looking at a 2270? with a 78mm crank you'll encounter the issue(s) dave mentioned and i believe there are case clearance needs as well. plan on decking and prob align boring the case.

the rest are iirc,

you'll need some sort of aftermarket exhaust/header system. i don't think stock heat exchangers will get the job done. bring money. lots of it.

figure out NOW how you plan on feeding the engine. carbs? individual FI throttle bodies and aftermarket fi management(bring another big $ pile)? stockish djet wont get the job done. at a minimum a set of carbs will need to be redone and all components sized correctly for your engine's EXACT needs. that is going to run you $700 + after the dust settles.

perhaps additional oil cooling.

head requirements. more $$$$.

lots more tricks for sure. not for the faint of heart.

going BIG is going to require a substantial investment. more like the equivalent of the new suspension you're going to want, brake renew, rust repair and paint, tranny work and all that's required to get the power to the asphalt. things most if not all roller projects have in their future.

[colingreene]

Thanks for raising those points.
I know I'll need more fuel. I have a set of 44 IDF carbs that I have all new gaskets and supply's on the way for.
I was hoping to use the stock distributor that should work ok.
However it may take some playing with the curve.
At any rate what I would prefer to do is drive some injectors off of a spare Vipec or mega squirt board I have around with the factory inlet hardware.
Plenum and runners. Hopefully that will flow we'll enough but if not ill figure something out.
As I posted earlier I do have a fully gone through trans ready to go.
I just might need to upgrade the clutch.
It's really nice to know you guys are looking out for me before I spend money.
However if theirs a combo with a stroker crank you reccomemd please let me know.
I just sort of want to stick to stock pistons for now.
The heads I have are being ported and I think I'll run stock valves for now.
They seem plenty big but I know I'll need springs.

[rhodyguy]

a local guy (dave h) tried the stock plenum, a opened up throttle body route, and mega squirt with 0 success. i hope jake raby sees your post and will offer insight. the webers will need tweaking and the stock Djet distributor isn't going to work with carbs without a vacuum signal.

[colingreene]

I emailed Raby, asking if he sold part, he just emailed back that he only does complete engines.
Im not sure how much he would want to share as its sort of his business to know how to do it and sell it rather than spred the word you know.
That said im grateful for any of the help i can get.
I knew mines vac but if the plenum wont work ill just run a different distributor.
not too hard to do.
I just want it right and I dont want to do it over.

[Bleyseng]

The simplest engine upgrade is the 2056 using Djet or dual carbs. Plenty of hp depending on the cam 115 to 125hp which really wakes up a 914.
Forget the Counterweighted crank if you stay stock stroke as its just tons of weight you added that you don't need. CW a stock crank is what you do to type 1 motors and type 4's don't need it as the crank is big and super strong.

Going to 78mm stroke is a can of worms that costs lots of $$$$$ and if you have lots of $$$$$ its just better to install a 3.2L 911 motor with 200hp.

[colingreene]

After the swap meet I had that thought. Just stick a 6 in it.
It would be more money.

[colingreene]

PM me about the smog thing.

I took my motor appart and brought the heads to Fat performance.
Greg is a nice guy but as it turns out my heads are cracked and destroyed.
while he cut me a good price on them being refinished it still wound up being more money than i wanted to spend on getting a set of heads refinished.
Anyone know of a good set of heads for sale that i can buy and use?
In other news the trans guy still has my trans and has no finished it.
I guess hes too busy doing stuff for Gene Burg. Normally that would be frustrating but i dont have a motor to put in front of it so i guess its ok.
I also bought a sand blasting cabinet so now i can bead blast and sand blast my parts to make them like new again.
If theirs anyone in the area that needs to clean something up or would like me to do it for you, shoot me a message and ill be happy to lend the use of my tools!

[brant]

all of these 2.0 heads (at least many) have cracks
you can buy brand new heads or fix the cracks
1k for rebuilding heads is common in my experience and it can go higher....

with such a significant investment, opening up the valves is common (more $$) with big displacement

we used to run 38/48 on a stock displacement 2.0 race motor.

[SirAndy]

The simplest engine upgrade is the 2056 using Djet or dual carbs. Plenty of hp depending on the cam 115 to 125hp which really wakes up a 914.

(IMG:style_emoticons/default/agree.gif)

[euro911]

(IMG:style_emoticons/default/agree.gif)... Me too

I have a set of '75 2.0L heads. I'll check them out next week and let you know what condition they're in.

I also have a complete '75 2.0L long block that I got from Bruce Stone a few years ago I haven't tore into yet ...


Also, I see where you asked "If the KS stock Cyls are good quality why swap to a larger piston?"

Even this minimal increase in displacement (94~96mm), a little more compression and a more aggressive cam will really make it come alive. I haven't dyno'd my 2056 yet, but it should be doing close to 125 hp (KB pistons, Raby 9580 cam, 9:1 CR)

[colingreene]

The quote to repair the heads was just over 2400
it was quite a bit more than i expected by about double.

[colingreene]

Euro, Any word on those heads or should i Pm you?

[Java2570]

Call Len Hoffman - http://www.hamincgroup.com/type4.php -- about new heads, he sells through
Jake Raby's web store and honestly you'll be spending less than those rebuild heads cost.
You could certainly find a usable set of 2.0L heads for less than what it costs to buy new but you
may not find them quickly. And those used heads may be needing to be rebuilt sooner than later anyway.
My 2 cents, spend the money now on new heads and enjoy your engine for a long time!

[colingreene]

It was a consideration.
I did look at the bill for 2400 and go yeah no.
just no.
Ultimately If i did not get stuck with a crank for a type4 id probably be putting the less ugly bumpers on it and a 3.0L Sc motor in it.
Oh well.
a good running type 4 should work ok.

[euro911]

Euro, Any word on those heads or should i Pm you?

I didn't get to the shop at all last the week (to much other BS going on). I WILL be going this week ... a lot of parts and supplies were delivered here - and have to go there.

IIRC, the heads only have about 4k on them.

[PancakePorsche]

I live in So.Cal. and have a 76' I daily drive 90+ miles a day. You can PM me if you have any concerns. My car is stock engined and passes smog no problem. I also use a local shop in Chatsworth for all my gearbox needs.

[Bob L.]

http://www.914world.com/bbs2/index.php?sho...=203702&hl=

Heads for a big 4. Maybe too big?
I have no connection with seller.