engine hp question?

damian911 · 07-20-2006, 10:23 AM

Can anyone tell me what the hp rating is on dempsys configuration on the 3.0sc engine with the 964 cam and the higher comp. ration JE pistons with 9:8:1, and keeping the CIS???
I think i would like to mimic this rebuilt that way i eliminate any problems later...just want a lil boost of hp?? : )
ill probl change the exhaust to headers too....

Damian

mca · 07-20-2006, 11:49 AM

I would like to know as well ... sounds like the upgrades mentioned here.

I am do for a rebuild in my 82 SC pretty soon and I plan on giving it a little boost.

wilke3169 · 07-20-2006, 12:27 PM

I rebuilt last year. Installed 964 cams, 9.5:1 J&Es, and SSIs with dual out Monty. I don't have dyno numbers but you will be very pleased. Engine now has 8000+ miles. Pulls strong in traffic or WOT...

mca · 07-20-2006, 12:39 PM

wilke3169 ... if you don't mind me asking, what was the total cost for the rebuild including the upgrades you mentioned? also, how long did it take to get back on the road?

thanks!

wilke3169 · 07-20-2006, 05:22 PM

mca- I have never added up the cost. Also I did tons of while you are in there items. Would be happy to give advice or info concerning the machine shop I used and such.
To avoid stealing the thread if you want to email me.
I just noticed that you are local.

turborat · turborat's Garage

I reground cams to 964, installed 9.8:1 JE pistons with headers and bursch pipes on my '78 Euro. Running 100 octane, CIS fuel mixture richened a bit, distributer at near full mechanical advance with vacuum advance unhooked it pulled 209 HP at the wheels. Cost? the engine was out for rebuild so I think these upgrades added about $1,200 to the cost of the build.

damian911 · 07-21-2006, 09:56 AM

turborat how many miles u have on the engine now and do u think JE pistons are as good or good enough in ur engine? Are u happy with the JE??

damian911 · 07-21-2006, 10:00 AM

thanks wilke, im really pushing toward this same spec/rebuilt myself and glad u like it...damian

turborat · turborat's Garage

Damian911

I have about 3,000 miles on the engine. Most are track miles. The engine pulls hard and performs well all the way to red line. Because it was a euro, my gain in HP was about 20HP. What I noticed mostly was that the power curve improved along with throttle response.

damian911 · 07-25-2006, 10:22 AM

turborat i just looked on our hosts site and the je pistons official site and i found that neither have a 9:8 cr je piston, only a 9:5 in the 95mm...although mahle does have it in the euro but wasnt looking for that one....how did you get yours???

damian

GothingNC · 07-25-2006, 12:27 PM

The PO (Charlie Stylianos) installed 9.8 JE's, SSI's, Elgin SC330 Cams and a bunch of other stuff

Competition Engineering did some trick work to the heads, etc.

It dynod 184HP, 188 Torque at 5000 RPM at the wheels so there was some powertrain loss. He was expecting more HP but believed that the Dyno operator made a few errors.

The car is a blast once she is unleashed.

I think it puts out more then enough HP when I see my passenger holding onto a piece of the car for dear life