rush to red rocks classic, How not to prepare for an event Options

[targa72e]

So, jump forward. My 914 -6 conversion now has its 4th motor and can move under its own power. Planning on driving from Denver to Salt lake for RRC.

About 5 years ago I decided to jump into the 914 world. I have several 911 engines needing projects and roller 911's have become really expensive ( and I have two 911 rollers that are already planed projects) so I bought a 914 for a -6 conversion. Not knowing much at the time I got lucky with pretty rust free 73.
It has kind of become my engine mule. First engine was a 2.4 MFI motor with S pistons and Ecams. Used it to decide if I like 914's, I do.

Mule as it looks now.



Ended up selling that motor to another 914 world member in Florida.

My friend (who will be joining me at Red Rocks, also shares the same name) also had engines that needed to be built.
So with the engine bay empty we built a 2.7 RS+ engine with RS pistons and Mod S cams and weber carbs. This was a big step up. Dyno below of 2.4 E with S cams vs 2.7 RS+.



We are working to get his 76 911 travel capable but if he is too soft for no AC he will bring his 01 turbo (you can give him crap).

His 2.7 made my 914 much more fun. I had a 2.7 engine in planning for "my 914" that this helped solidify the specs.

Since I jumped into the 914 world I started looking for "my 914" project to build how I wanted based on my experience so far. This resulted in having 4 914's at one point.

One of the cars I purchased sent me down a side road. It was originally a sad neglected car with great potential. I purchased it thinking it would make a great start for "my 914-6" but was ultimately too nice for me to modify so I spent a year and a half bringing it back to good health. It was purchased by another 914 member and should be at RRC as well. Story hear.

http://www.914world.com/bbs2/index.php?sho...mp;hl=white+car

So after my friends engine vacated my cars engine bay I decided to build what I called my "junk yard dog" motor. This was built from parts I had that had no home. While not in new spec they were not yet worn out. They consisted of a 2.4 case that I used my new mill to add case savers and deck ( it was quite warped in this area). It was built to similar spec to the first engine, 2.4 with JE pistons 9.5 to 1 and E cams. It had T heads ported to S specs and ran Zenith TIN carbs instead of MFI from first engine. Made great power with the larger ports and a little more compression compared to stock port size MFI engine I originally built.



So ended up purchasing a bunch of 914 and 911 parts early this winter. This included a mostly ready to build motor plus a spare 2.7. About the same time I saw a post from some one with a 912 that wanted a complete 911 motor. Why not sell the "junk yard dog", I had a good 6 months until RRC why not make my 914 immobile again (IMG:style_emoticons/default/smile.gif) I would have plenty of time to build another engine.

Too be continued

John

See you at RRC one way or another.

[targa72e]

So I was pretty happy with fixture and head machining. Basically zero run out. video link below.

https://youtube.com/shorts/WxHmpErr5Rk

Now I could cc the heads to calculate compression ratio. I had to machine the pistons to hit my target ratio of 9.8 to 1. All was looking good to assemble top end. I measured and grouped cylinders and cylinder heads side to side to minimize variability and ended up well under Porsche spec.

While I was measuring for cam timing and lift I noticed quite a difference from one side to the other. I ended up checking rocker ratio by looking at max lift. I knew there would be some variability.



I put the highest lift on the intake side and lowest on exhaust. I figured exhaust is being expelled under pressure. In the end we are only looking at .15mm difference from most lift to least.
Cams timed, chains set for parallelism, all rockers adjusted for clearance. etc. I rebuilt a set of 930 tensioners and installed locks this took some time but finally I have a long block on August 8th. It was a really long 4 day weekend.



now only had to do all the other stuff. Just over a month to go. I wanted to get the engine on my test stand and run it before install but did not have the bock off for left side. Looked at several options available for purchase and built my own, happy with how it turned out.



final wiring and hookup. Still had to put carbs back together. Carb reassembly took longer than expected. O-rings in rebuild kit for idle adjusters were to big. Zeniths put back together with 34mm Venturi and 145 main jets based off previous experience with 2.4 and E cams. Found I was missing a couple fuel inlets for carbs but was able to order next day. Also found out my manifolds that were sold as 40 x 36 are actually 46 x 36, they will have to do for now why I try and source the correct size. getting final stuff done, quickest way to find firing order ended up being taking picture of shirt I have.



Got the engine mounted up on my home made test stand to test run. Much easier to fix at this stage if there are issue without having to try and work in 914 engine bay or pull engine again to fix. Very rough settings for carbs and timing to get engine to run. Final adjustments will be with engine in the car.
August 21st and Its alive. Just over 3 weeks until plan to leave for red rocks. video link below.

https://youtube.com/shorts/1OqRMeo87H4

No leaks or issues so short run on stand. Time to get engine installed in car.

john