FYI: Official Alien Build thread Started 2003, Alien Resurection is underway. Flywheel is finished - transaxle is bolted - Starter works Options

[ClayPerrine]

You should upgrade the alien with new Transwarp drive technology...

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-1143-1674651165.1.jpg)

https://forums.pelicanparts.com/porsche-928...8s4-engine.html

(IMG:style_emoticons/default/alien.gif) (IMG:style_emoticons/default/poke.gif)

[DRPHIL914]

trying to get my new garage organized. I am working around tool boxes welders bins fo parts & Juergen's car. So adding Drywall a little at a time. I needed something to motive me so I spent a couple evening and added this garage art. I have always wanted to do this.

That is awesome!!! Rick looking forward to seeing what you do, I like Clay's idea of staying porsche and that 2.9 set up with PDK would be awesome!

[Root_Werks]

trying to get my new garage organized. I am working around tool boxes welders bins fo parts & Juergen's car. So adding Drywall a little at a time. I needed something to motive me so I spent a couple evening and added this garage art. I have always wanted to do this.

That is awesome!!! Rick looking forward to seeing what you do, I like Clay's idea of staying porsche and that 2.9 set up with PDK would be awesome!

(IMG:style_emoticons/default/agree.gif)

That is awesome!

[rick 918-S]

Picked this up last Monday.

[Chris H.]

Nice! You're really gonna like the more modern shifting feel Rick. And you don't have to worry as much about grenading it when you make 11s (IMG:style_emoticons/default/biggrin.gif) .

[rick 918-S]

Nice! You're really gonna like the more modern shifting feel Rick. And you don't have to worry as much about grenading it when you make 11s (IMG:style_emoticons/default/biggrin.gif) .

Never really gave the Boxster transaxle a thought in 2003 when i started this experiment. Just using what I had at the time.

[rick 918-S]

I just placed an order with 914rubber for my 6
While I am stalled on that car I decided to find out why the engine in the Alien locked up. Pulled it out thinking the worst like jumped teeth on the cam belt and valves holding the piston from turning
Loosened the belt tensioner and the cams moved fine the crank would not budge. On a hunch I pulled the starter. I had to knock it out with a brass hammer. I have never had one stick like that before.

It was way past time to do some badly needed maintenence anyway. I found cracked hoses connected to the CIS, cracked fuel lines and a leaking cam seal that have been that way since the last rebuild

[ClayPerrine]

Maybe it is time to upgrade to Trans Warp.

(IMG:http://www.914world.com/bbs2/uploads_offsite/silodrome.com-1143-1721615704.1.jpg)

4 Valve heads and DME......

We can even hook it to a cable shifted Cayman six speed.

[rick 918-S]

As cool as that engine is Clay, mine will have more HP that the 32 valve. You may recall I had a cam failure some time ago. Here are the specs for the M28/11 Euro "S" engine I had originally.

80-83 ROW S M28-11/12, HP300/TQ263
Stamped: 187.03/188.03
Intake opens: (-9) BBDC, closes: 52 ABDC, duration: 223, centerline: 120.5 ATDC, advanced: 6.5
Exhaust opens: 37 BBDC, closes: 2 BTDC, duration 219, centerline: 107.5 BTDC
Overlap: (-7), separation: 114 {wide}

Since the block was damaged during the cam failure I had it bored from 4.7 to 5.0. You can only run 928 pistons in the Alusil block. So I had a set of 32 valve 5.0 pistons notched for 16 valve head. I did not fined another set of unobtanium Euro cams so I bolted on a set of US spec heads. The US engines are average 218 to 234 hp.

My damaged Euro heads were shaved in excess of the max cut to fix the damage caused by the broken cam. As a result I calculated the over cut and used Cometic head gaskets to lift the heads enough to allow valve clearance. I estimate the compression is around 10.5/1

Several years ago I purchased a 1984 S M28-21 engine that had a failed crank. The cam is the best of the 16 valve ROW engines. I have always wanted to swap these in but with a running car I couldn't bring myself to tear it down. With the starter issue it turned out to be the ideal time to made the upgrade. Here are the new cam specs.

84-86 ROW S M28-21/22, HP310/TQ295
Stamped: 211.00/212.00
Intake opens: (-6) BBDC, closes: 54 ABDC, duration: 228, centerline: 120 ATDC, advanced: 10.5
Exhaust opens: 43 BBDC, closes: 4 BTDC, duration 227, centerline: 109.5 BTDC
Overlap: (-2), separation: 109.5 {moderate}

So add the M28-21 cams to the high compression 5.0 short block with all Euro heads, intake and throttle body, no power steering, AC or mechanical fan and I have a serious HP gain.

[ClayPerrine]

As cool as that engine is Clay, mine will have more HP that the 32 valve. You may recall I had a cam failure some time ago. Here are the specs for the M28/11 Euro "S" engine I had originally.

80-83 ROW S M28-11/12, HP300/TQ263
Stamped: 187.03/188.03
Intake opens: (-9) BBDC, closes: 52 ABDC, duration: 223, centerline: 120.5 ATDC, advanced: 6.5
Exhaust opens: 37 BBDC, closes: 2 BTDC, duration 219, centerline: 107.5 BTDC
Overlap: (-7), separation: 114 {wide}

Since the block was damaged during the cam failure I had it bored from 4.7 to 5.0. You can only run 928 pistons in the Alusil block. So I had a set of 32 valve 5.0 pistons notched for 16 valve head. I did not fined another set of unobtanium Euro cams so I bolted on a set of US spec heads. The US engines are average 218 to 234 hp.

My damaged Euro heads were shaved in excess of the max cut to fix the damage caused by the broken cam. As a result I calculated the over cut and used Cometic head gaskets to lift the heads enough to allow valve clearance. I estimate the compression is around 10.5/1

Several years ago I purchased a 1984 S M28-21 engine that had a failed crank. The cam is the best of the 16 valve ROW engines. I have always wanted to swap these in but with a running car I couldn't bring myself to tear it down. With the starter issue it turned out to be the ideal time to made the upgrade. Here are the new cam specs.

84-86 ROW S M28-21/22, HP310/TQ295
Stamped: 211.00/212.00
Intake opens: (-6) BBDC, closes: 54 ABDC, duration: 228, centerline: 120 ATDC, advanced: 10.5
Exhaust opens: 43 BBDC, closes: 4 BTDC, duration 227, centerline: 109.5 BTDC
Overlap: (-2), separation: 109.5 {moderate}

So add the M28-21 cams to the high compression 5.0 short block with all Euro heads, intake and throttle body, no power steering, AC or mechanical fan and I have a serious HP gain.

You can still put in the cable shifted boxster trans you bought. Let me know if you want to know how I did it on my car.

[rick 918-S]

As cool as that engine is Clay, mine will have more HP that the 32 valve. You may recall I had a cam failure some time ago. Here are the specs for the M28/11 Euro "S" engine I had originally.

80-83 ROW S M28-11/12, HP300/TQ263
Stamped: 187.03/188.03
Intake opens: (-9) BBDC, closes: 52 ABDC, duration: 223, centerline: 120.5 ATDC, advanced: 6.5
Exhaust opens: 37 BBDC, closes: 2 BTDC, duration 219, centerline: 107.5 BTDC
Overlap: (-7), separation: 114 {wide}

Since the block was damaged during the cam failure I had it bored from 4.7 to 5.0. You can only run 928 pistons in the Alusil block. So I had a set of 32 valve 5.0 pistons notched for 16 valve head. I did not fined another set of unobtanium Euro cams so I bolted on a set of US spec heads. The US engines are average 218 to 234 hp.

My damaged Euro heads were shaved in excess of the max cut to fix the damage caused by the broken cam. As a result I calculated the over cut and used Cometic head gaskets to lift the heads enough to allow valve clearance. I estimate the compression is around 10.5/1

Several years ago I purchased a 1984 S M28-21 engine that had a failed crank. The cam is the best of the 16 valve ROW engines. I have always wanted to swap these in but with a running car I couldn't bring myself to tear it down. With the starter issue it turned out to be the ideal time to made the upgrade. Here are the new cam specs.

84-86 ROW S M28-21/22, HP310/TQ295
Stamped: 211.00/212.00
Intake opens: (-6) BBDC, closes: 54 ABDC, duration: 228, centerline: 120 ATDC, advanced: 10.5
Exhaust opens: 43 BBDC, closes: 4 BTDC, duration 227, centerline: 109.5 BTDC
Overlap: (-2), separation: 109.5 {moderate}

So add the M28-21 cams to the high compression 5.0 short block with all Euro heads, intake and throttle body, no power steering, AC or mechanical fan and I have a serious HP gain.

You can still put in the cable shifted boxster trans you bought. Let me know if you want to know how I did it on my car.

I have been thinking about it but maybe not this round of repairs. I have been thinking I just may be able to make the RRC... Just thinking about it... (IMG:style_emoticons/default/idea.gif)

[ClayPerrine]

As cool as that engine is Clay, mine will have more HP that the 32 valve. You may recall I had a cam failure some time ago. Here are the specs for the M28/11 Euro "S" engine I had originally.

80-83 ROW S M28-11/12, HP300/TQ263
Stamped: 187.03/188.03
Intake opens: (-9) BBDC, closes: 52 ABDC, duration: 223, centerline: 120.5 ATDC, advanced: 6.5
Exhaust opens: 37 BBDC, closes: 2 BTDC, duration 219, centerline: 107.5 BTDC
Overlap: (-7), separation: 114 {wide}

Since the block was damaged during the cam failure I had it bored from 4.7 to 5.0. You can only run 928 pistons in the Alusil block. So I had a set of 32 valve 5.0 pistons notched for 16 valve head. I did not fined another set of unobtanium Euro cams so I bolted on a set of US spec heads. The US engines are average 218 to 234 hp.

My damaged Euro heads were shaved in excess of the max cut to fix the damage caused by the broken cam. As a result I calculated the over cut and used Cometic head gaskets to lift the heads enough to allow valve clearance. I estimate the compression is around 10.5/1

Several years ago I purchased a 1984 S M28-21 engine that had a failed crank. The cam is the best of the 16 valve ROW engines. I have always wanted to swap these in but with a running car I couldn't bring myself to tear it down. With the starter issue it turned out to be the ideal time to made the upgrade. Here are the new cam specs.

84-86 ROW S M28-21/22, HP310/TQ295
Stamped: 211.00/212.00
Intake opens: (-6) BBDC, closes: 54 ABDC, duration: 228, centerline: 120 ATDC, advanced: 10.5
Exhaust opens: 43 BBDC, closes: 4 BTDC, duration 227, centerline: 109.5 BTDC
Overlap: (-2), separation: 109.5 {moderate}

So add the M28-21 cams to the high compression 5.0 short block with all Euro heads, intake and throttle body, no power steering, AC or mechanical fan and I have a serious HP gain.

You can still put in the cable shifted boxster trans you bought. Let me know if you want to know how I did it on my car.

I have been thinking about it but maybe not this round of repairs. I have been thinking I just may be able to make the RRC... Just thinking about it... (IMG:style_emoticons/default/idea.gif)

How about you join us on the tail of the dragon at Okteenerfest?

[rick 918-S]

I pulled the valve cover off the left side and removed the US cam. The difference from the right side US cam to the Left side "S" cam is clearly visible!

[rick 918-S]

And Thanks to Marty @Maltese Falcon


These will be going on during the refresh!

[Root_Werks]

Feels like this 914 will be back on the road pretty soon!

(IMG:style_emoticons/default/driving.gif)

[rick 918-S]

Sorry Mary, I had to wreck a perfectly good set of headers. The 928 must have more room to the sides and no transmission to get in the way. I ordered some bends from Speedway. Looks like I will just need to rotate the two rear tubes. The front two are sliced underneath so I could tip the tubes away from the engine slightly. This gave me the space I needed at the transaxle.

Here are some of the gory results soon to be on the mend. you can see the two front tube slots allowed me to move the collector away from the clutch cable pulley.





The left side will need the same treatment. The header is very hippy.

[rick 918-S]

Couple more photos

[rick 918-S]

Cams are ready to install in the valve covers. Just waiting for some new seals.

[Root_Werks]

Crazy cool you'll have headers now.

[Chris914n6]

If it was me