Single port 1679cc type 1 engine... 90Hp.

[Crazy Mc.Stairs]

Hi all,

Today I've dynoed a 1679cc engine I've made for a customer, and it pulled 89.8Hp at 4550Rpm and 155Nm at 3200Rpm with stock size valves and single port heads.

This is a daily driven car, it's a vintage engine (Theo Decker) style, not a race engine!

Cheers,

Christoph

[Jim Ratto]

Impressive. I have a 88 x 74 single port in my cabinet, 236' @ .050", .480" @ valve, someday going in a nice '66 Bug. This is encouraging.

[Crazy Mc.Stairs]

Impressive. I have a 88 x 74 single port in my cabinet, 236' @ .050", .480" @ valve, someday going in a nice '66 Bug. This is encouraging.

Thanks Jim, I 've used a 245° @ .050 and .480 @ the valve on the intake lobe!

Cheers,

Christoph

[Joel Mohr]

NICE!!! Chassis Dynos can be deceiving though...you should try a quarter mile to back up the numbers...

[dyno don]

 Did someone say Single Ports??  Gentlemen step up to the bat and purchase MY heads from the 70's...  1600 s/p kadrons 15:01 @ 87 mph in Notchback.  Freshened by the talented Fred Simpson and now just need a good home with Love.  Sorry to jack the thread boys...  Peace out, Dyno       ps, BTW... Your engine looks sweet , makes good power, and will a blast to drive.  Enjoy...

[whirligig]

planing to build a 1641 with unknown cam (reground almost to base circle )single port with holly bugspray to go in my 66

[besserwisser]

Now we are getting down to serious bussiness. Will be putting my 1835 single port with Teo decker kit on the dyno at JPM in oktober. To give you a hint it wont start with the six volt battery so I have a 12 volt to get it started then I leave it to the magnet when i change to six volt. Drove it down to germany last spring for Maikäfertreffen with lots of power and great gasmilage. Would like to hit over a hundred but who knows.

[freakpower]

Hi all,

Today I've dynoed a 1679cc engine I've made for a customer, and it pulled 89.8Hp at 4550Rpm and 155Nm at 3200Rpm with stock size valves and single port heads.

This is a daily driven car, it's a vintage engine (Theo Decker) style, not a race engine!

Cheers,

Christoph

Hey, congratulations with a wonderful engine
Would you tell us a bit more: What kind of camshaft, exhaust and compression?

[Crazy Mc.Stairs]

Hi all,

Today I've dynoed a 1679cc engine I've made for a customer, and it pulled 89.8Hp at 4550Rpm and 155Nm at 3200Rpm with stock size valves and single port heads.

This is a daily driven car, it's a vintage engine (Theo Decker) style, not a race engine!

Cheers,

Christoph

Hey, congratulations with a wonderful engine
Would you tell us a bit more: What kind of camshaft, exhaust and compression?

Thanks,

The engine has 88mm thick wall Mahle cyl/pistons
Stock 69mm balanced cranck
Stock rods
PRO 001 SP heads with 35.5/32mm SS valves
8.7/1 compression ratio
34l/s of flow through the intake @ 10"
29.5l/s of flow through the 34mm PCIT Solex carb with 28mm venturies @ 10"
Scat HD single springs
Dual lobe Engle camschaft on modified lobe centre
12.2mm valve lift with 1.3 CB rockers
Modified 35mm exhaust with Sebring muffler

Best regards,

Christoph
Proformance

[youngnstudly]

I hope my 1915 SP makes some power similar to that! Sounds fun and looks very cool too! I like the car as well.

-Andy

[Henrik Hagen]

hi

Is it possible to see some pictures of the heads??

How much porting did you do?