Upgrading Motor-What have YOU done?

[efhughes3]

What have you done to your engine?

[Carrera3.5L]

Originally posted by efhughes3
What have you done to your engine?

Nothing, it's bone stock.




Ed, are you STILL on the fence?

Ralph

EDIT: Waiting for the onslaught of 3.6L conversion guys to swamp us rebuild folks.

[Paulporsche]

I got rid of the old, tired 77 2.7L (160 hp) about 13 yr ago and replaced it w/ a rebuilt 80 3.0L enlarged to 3.2L twin plug using new pistons and revised cam. I kept the CIS and the old points distributor for the time being. I added SSIs and a Dansk 2in-1 out exhaust. Some day I may install the dual plug distrib to take advantage of lower octane gas and PMOs, but for now I'm enjoying the smooth 230 hp of this setup and the ease of working on the CIS. It's an old school, low tech solution but this setup is very strong in my 2500 lb chassis, and I have put about 75,000 mi on this engine. I use Sunoco Gold (94) and Mobil 1 15W50.

[Install425]

[Dantilla]

Swapped a stock 3.2 into the 1973 coupe.
more horsepower and torque that a built 2.4, and has the reliability of a factory engine.

[cowtown]

Where's the "Converted to Turbo" option?

[sammyg2]

I agree with Colin, turbo option..............

[efhughes3]

Sorry I missed the Turbo conversion choice.

[iamchappy]

TURBO

[Randy Webb]

3.2L 1986 motor modified in a 1973.5 911T
~ 250 hp at 6,300 rpm; ~ 210 torque at 3,200 – very flat from 2,500 up to 6,300
split the case halves and balanced crank, etc.; main bearings were great (re-used); everything fine on engine
Compression ratio 10.2:1
JE pistons with JE wrist pins; three different ceramic coatings on pistons – anti-friction coating on skirts; oil retention coating on underside; and coating on top to let carbon slide off so it won’t build up
stock OEM (Goertz?) piston rings – was told Total Seal rings are hard on bores and slow to seat
Cyl. heads cc’d fine – all very close to each other and well within spec.; heads flowed well on flow bench
993 intake valves (larger, and about 24 g. lighter than stock, about the same as the CS intake valves)
valve seats are cut with radii, not with sharp angles – this NASCAR trick is worth about 5% more hp as doesn’t cause as much turbulence to inlet air flow
Aasco (Aase??) valve springs (have 90 lb. spring rate vs. 65-70 for stock, main improvement is they won’t break)
Aasco (Aase??) Ti retainers; and Aase steel keepers
Twin-plugged with 964 dual distributors with SC distributor inards in main dist. for magnetic reluctor and advance mechanism
40 mm PMO carbs; SSIs; ports celaned up a bit but otherwise not modified
MSD 6AL CD ignition with 2 MSD Blaster Coils

I modified a 911 type trans. to fit because I like the shift pattern and it saves a little bit of wt.; the engine has a flywheel adpater on it for this trans.
I made an adapter plate so the trans could use the 915 type support bar with replaceable rubber mounts.
I did not modify the trans. with the Al billet int. plate. I baby it in 1st gear and hopefully can get a couple of years out of it while I gather my energies for more trans. mods.

This is a hot street engine, not a race car. It is faster than a 964....

[charlesbahn]

Turbo, Turbo, Turbo, and Big Intercooler.

[YermanCars]

turbo

[efhughes3]

Goddangit, there certainly appears to be a TURBO epidemic!!!!!
I may have to rethink all of my plans. Sorry again for not including you guys...I'll start another poll.

[Porschekid962]

1978 3.0 SC into a 1974 911s. 20/21 cams, ssi's, two in two out banana muffler from TRE. MSD 6al and coil, nology wires.

Soon to be my engine! dad is getting a 3.2 with ITB's and EFI and some other goodies in the mix, maybe bigger p's and c's

[rkh3]

[WydRyd]

From bone stock 3.2 Carrera to Stage 3 Protomotive Turbosystem developing ~550-600HP

Future plans could well be a Twin Turbo setup & Autronic injection

[rattlsnak]

2.2 S into a '66
3.2 into an SC
3.3 C2TURBO into an SC
3.6 into a '72