New combo for the 2316!! 3 bolt 914 heads with a squareport?

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Tue Aug 17, 2004 7:38 pm

Yep...

Another test engine.. This time we are combining the best flowing exhaust port with the best chambers and the awesome plug location of the 2.0 914 head....

The 914 is down for some serious suspension upgrades.. Mark is coming to pick it up on Thursday so I decided to make some changes to my first "Annihilator".... Mine was the first one and so farhas been the weakest I have assembled.

The JE pistons that I used were my older design and use Deves rings. These rings are great for full street and lower CR but at 10:1 she burns some oil and has some blow by issues at hi RPM due to the ring composition and tension. I will be swapping these out for my newest arrangement of JE and should see some gains just from that as this is the only 2316 that has used these older style pistons that were actually set up for a 2270D.

The other big change is going to be the Cermet lifters that this engine will utilize. I will be keeping the cam the same but we will be using the newest "Pro Extreme" lifter that has a rotating ceramic foot for a face.. Its a flat tappet that allows ridiculous ramp speeds and opening events almost like that of a roller. I will not be opening them that fast in this engine but mainly want to run them to ensure they are compatible in a Type IV as well as they are in the Winston Cup applications they are designed for. The rotating face allows for very little friction and lost power diue to it- Should be cool!

The big change will be the cylinder heads. Since I will keep the same cam profile, same piston size and design and CR we will really be able to see the benefits of the head that Len and I are working on for the beast.. I drive this car VERY< VERY hard and it will be seeing many road race type events and some long street miles as well.

Len has been doing his homework on some other vehicles that utilize 7mm valve stems and has found an awesome set up that will work for a Type IV street engine with track time, just like mine. These valves are stainless, 7mm and they have matching springs and retainers and keepers that in stock form will hold 7500 RPM with 220 pounds open spring pressure....
SO....... What we are doing is adapting these valvetrain parts to a set of squareport 2.0 Vanagon castings, relocating the spark plug holes to the 2.0 location and adding the 2.0 914 chamber designs... It will even havea 3 bolt intake manifold with 2.0 914 spacing!!

We are looking for 200 totally streetable HP and I feel we can do it with these heads, and valvetrain. It will be a great compsrison for sure...

Look for these results in 6 weeks, we have to make this one happen soon so I can have it back for Roebling in October!!! I have six cylinder ASS TO SPANK!

I will keep you posted on what I find for wear on the 2316 teardown. originally this engine was designed to last 60K miles, but I think it may have a longer life than that after I see how things are doing after 2 solid weeks on the dyno and 10,000 VERY, hard miles(I shift it at 7500 RPM and sometimes hold 8000 for 20 seconds at a time)

type11969 · Post by **type11969** » Tue Aug 17, 2004 9:13 pm

Jake-

I mostly just lurk on the stf, reading and absorbing. I found recently that when I check the new topics page, I scan the author list to see if you've posted anything, because damn, the stuff you are doing is really cool. I wish I had the resources to do the testing that you are doing, but now that I have a full time job, I can afford to take you up on your offers to be a guinea pig for your various products. And I look forward to it.

Anyway, thanks for doing all that cool sh!t down there.

-Chris

Oh yeah are you going to be attending the Bug In in Manassas VA?

Plastermaster · Post by **Plastermaster** » Tue Aug 17, 2004 9:14 pm

Cool. After this last week with the squishies these heads should be fun. I'm guessing not so much uncharted territory with the head mods.

Ron

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Tue Aug 17, 2004 9:22 pm

Thanks Chris..

Nope, just two more shows for us this year.. One is in Toccoa Georgia (our home show) and the other is in Sevierville TN. Going to shows soaks up time when i could be getting something done.

Plaster,
The mods are not new, but the main thing is thay have not been utilized together in the same engine, especially one that we can monitor and tear down to see burn rates and etc if we want to.

Post by **sparkmaster1** » Tue Aug 17, 2004 9:29 pm

So is that lifter like a OHC puck style??

I can see where that might work quite well if you could keep the disk in place. Tim

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Tue Aug 17, 2004 9:36 pm

Nope, thie disc is made to rotate under lobe pressure. It just does so with little effort and without spinning the rest of thelifter body. The foot is also made of ceramic..
The face rotates and has no bearing, just hydrostatics keep the surfaces moving.......

Wild stuff. I shpould be able to lift .0095 or so per degree of crank rotation after we get the cam profiles made for them.. Currently .0065 per degree is pushing it for life..
Forget about wear, its ceramic....

type11969 · Post by **type11969** » Tue Aug 17, 2004 10:09 pm

Damn, hoping to see one of your engine blows . . .

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Tue Aug 17, 2004 10:23 pm

Come to Toccoa... I will be exploding a complete 87 Jetta, Nitrous assisted!

Ephry73 · Post by **Ephry73** » Wed Aug 18, 2004 8:41 am

That's insane Jake! Wow, sounds like the combination alone should bring the numbers, and what total liftduration do you have on the cam?

Looking forwards to those numbers and the teardown

E

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Wed Aug 18, 2004 9:16 am

Ephry.... You should know that I never tell cam specs..

Thats where ALL the power in the Type IV lies, totally hidden!

davygrvy · Post by **davygrvy** » Wed Aug 18, 2004 9:19 am

Hi, can I have all your trade secrets, please? Don't hold back..

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Wed Aug 18, 2004 9:23 am

Davy, guard those specs in your manual with your life..... You paid to get them!

Ephry73 · Post by **Ephry73** » Wed Aug 18, 2004 9:27 am

I was just messing with you Jake. You know that.

That does sound like a great little number though. Keep us posted on the findings please.

E

davygrvy · Post by **davygrvy** » Wed Aug 18, 2004 9:46 am

MASSIVE TYPE IV wrote:Davy, guard those specs in your manual with your life..... You paid to get them!

Ohh, looky here..
/me reads his engine spec manual

cam grind type,
lift,
duration @ .020,
duration @ .050,
base circles,
lobe centers..

It's all there

dstar · Post by **dstar** » Wed Aug 18, 2004 9:52 am

Did you impliment any "squishy tech" in the CC of those square ports?
Just thinking out loud again...

Don