The 914 DTM, Development is coming along Options

[Jake Raby]

Someone sent me an email asking about the DTM for the 914, so I figured I'd make a post..

I have the first version of it finished, and ready to be installed on my newly reconfigured, hybrid headed 2316 for my 914.

This first version is very plain and utilizes no internal cooler at all. I am starting with this shroud to get some baseline numbers to test against when we start moving locations for the stock cooler to be located. I have 4 different locations for the stock cooler planned, but two of them create some funky routing of the airhose thats just not pretty to look at at all. I do think that one of these will work exceptionally though so I plan on trying it anyway.

One thing I have had made up for the DM for this particular application is a venturi ring that will speed the air up into the fan inlet. This should both quiet the fan down as well as increase the air charge into the fan making the shroud do its job even better.

The new 2316 should be on the dyno next week if assembly goes well. I am going to do most of this development in my 914 simply because I cannot spare dyno time because of all the other stuff going on right now.

I am still shooting for a summer release date for the 914 version, how realistic that is- we'll have to wait and see...

I have many more important things going on at the present! You gys are really gonna like this!

[Jake Raby]

The DTM is never a replacement for Nickies, nor are the Nickies a replacement for a DTM.

With Nickies the engine has the capability of cooling better because less heat is generated due to friction reduction as well as the ability of the Aluminum to radiate the heat into the cooling air stream faster.

This means that Nickies make the engine run cooler. Due to this it opens up avenues for guys like me to push the envelope and get more from an engine and do so much safer.

Now, While the Nickies run cooler and allow more mods to be made to the engine they do not "Self cool".. This means you still need even airflow to create even running temperatures with the needed pressure to do the job. Thats where the DTM comes into play with its big advantage. It can keep the head temps more even, resulting in less expansion over the entire engine and that helps with power, reliability and longevity.

Long story short the engine can never be over equipped in the cooling department. More cooling means you can hold higher loads for longer durations of time and not heat soak the components. This allows the use of max HP with no adverse effects for much longer periods of time.

I have a customer with Nickies and a DTM on his 201BHP MassIVe Super Hero and he can drive 5 hours sustained at 85-90 MPH with head temps that barely break 300 degrees- In fact that has only happened once in the two years he has had the engine. Its a full time daily driver.

See it here http://www.aircooledtechnology.com/custome...llon/index.html
Its a beetle!

Basically with the use of a DTM AND Nickies you can get much more from your engine in general. I have noted that the benefits of the DTM are astounding with Nickies, but at the same time the cast iron equipped engines have an equal benefit because they need ALL the help they can get!