How much faster is 3.2 over 3.0??

[SlantnoseSD]

I was looking at the Supertec website. I saw what they have to offer and I woudl like to rebuild it myself. I was thinking about buying a 3.6 and rebuilding it while my 3.0 is still runnig fine and then when done dropping it in.

I guess I'm looking for somethign with some grunt....maybe tire smoking power. The 3.0 right now is definately weak.

[phaques]

Well, since some of you are getting carried away, I'd like to suggest a more non-traditional mod: installation of a General Electric T58-8F. See photo of a 2002 VW Beetle to get an idea of the potential.

Good for about 1350hp. Redlines at 26,000rpm. not sure how the smog test would go.... And, it's simple! Engine only has three gears: Cool, Big-Fire, and Afterburner!

Check out the whole photo gallery and story at http://www.ronpatrickstuff.com/

Anyway, sorry to get off track, but i couldn't resist.

Don't think I'd want to be anywhere behind this guy on the track when he shifts into "Afterburner".

[joetiii]

Originally posted by Lukesportsman
Joe,

You need bigger better camshafts to gain the top end charge. Stock 3.0 CIS cams are too small to exploit the PMO's for me. Remember, until you get rid of CIS pistons your still quite restricted...might think Webcam 20/21's. My 9.3:1 3.0 dyno'd at 231. You could/should also recurve the dizzy for the carbs and cams. I don't have my torque figures in hand, but not much better than yours, just more area under the curve due to more reach.

What size PMO's?

I figured I'd need a bigger cam. What size?
I don't want to give up much torque.

I have PMOs w/ 40s now. Real nice throttle response. Being at 9.3:1 now, I figure a 9.8:1 squeeze or higher would make a difference and with a Electromotive distributorless HO ignition. How high or an RPM can be run with theses larger valves?

BTW, whats a dizzy?

[SlantnoseSD]

Maybe I should just sell the Porsche an buy a Pantera.

[dentist90]

I would think a conversion to a 3.2 isn't that straight forward. Because of the Motronic control you would need a module (not cheap) and the wiring harness to connect the new motor to it. I think it would be easier to try to tweak the extra 20HP or so by modifying your existing engine. A complete teardown of your 3.0 would be cheaper and less headache than the conversion.

[SlantnoseSD]

I will probably pull the engine and rebuild it and add all sorts of goodies. I am going to wait until I have the time and until it needs it. I rebuilt the motor in my BMW M6 so this can't be that difficult.

[MRM]

When the 3.2 was new Car and Driver did a nice story on them and said that the 1984 3.2 was a full second quicker from 0-60 than the 3.0 SC was.

I have an 84 Euro and the difference between the US version and ROW version is quite noticable.

[Huh]

didn't car and driver do it with a euro spec 3.2? if so did they compare it to the US 3.0 SC? or did they compare it to a euro spec 3.0?

[jaydubya]

I can't see any reason to put a $10-15k 3.6L engine into a $10-15k SC. If you want more power,

1) turbocharge your 3.0. It will cost 1/3-1/2 the money of a 3.6l transplant and give you more hp.

2) sell your SC and buy a 964. You'll get the engine plus a more capable suspension and brakes.

[Hugh R]

I've driven my neighbors US 84 and its noticeably slower than my 84 ROW with a Steve Wong chip, no other mods to my car.

[trekkor]

Anybody going to a bigger motor, I'll be interested in your 3.0...


KT

[78-911SC]

Bill if a 3.2 is .2 faster than a 3.0 what is a 3.6 over a 3.0?

[dentist90]

Originally posted by 78-911SC
Bill if a 3.2 is .2 faster than a 3.0 what is a 3.6 over a 3.0?

.7? No No , wait, I know this. Ummm, carry the 1, add square root of 3.6 to product of the sum of the number of cylinders... got it!

.6

[ZOA NOM]

Originally posted by 81 911 SC
So if you put a 3.2 into a SC the car will be quicker since the SC is lighter than a Carerra.

Not true. 1978 SC = 1236 kg 1984 Carrera = 1210 kg

Look it up. It's a common assumption, but the Carreras are not as heavy, and they are more powerful. They look better too, IMHO

[PatrickB]

Originally posted by Hugh R
I've driven my neighbors US 84 and its noticeably slower than my 84 ROW with a Steve Wong chip, no other mods to my car.

Curious... Does the ROW pass smog?

[YTNUKLR]

To keep it pretty simple, I would rebuild the 3.0, swap in a 3.2L crank/rods when you're in there (modified to use stock 3.0 p/c, OR use 3.2 p/c), port the heads to 39/37mm, and install 20/21 cams. CIS is easy to live with; TBITZ EFI maybe, if you want to go one more level up. That should make you 220-230 easily with stock exhaust. Better (headers, 993 exchangers) exhaust would net you even more, around 240-250...not smog legal though w/o a cat

[livi]

All things considered, sounds like it would be easier to just swap the whole car for a newer model with a 3.2 or 3.6.

[safe]

Originally posted by SlantnoseSD

I guess I'm looking for somethign with some grunt....maybe tire smoking power. The 3.0 right now is definately weak.

I heard Juan Ruiz's car is for sale. Selling D Car, Whats Wrong ?

That car has a little grunt and it might even smoke a tire or two

Ps. I don't know Juan or the price of his car.

[JBO]

I agree with dd74. And regarding the whole issue of more power, I felt the way you do when I first got my SC, but then I started driving it a little more aggressively (i.e. taking it a little higher in the rev range before shifting), and it really has all the power that is needed for street driving. If I'm trying to get to 50 or 60 very quickly I can do so. 1st gear off line is really the only negative. Many years ago when I was hoping up my BMW and asked my mechanic about some "upgrades" (chip, etc) he said "how often do you now floor it when accelerating?". The answer was not very often, and his response was "since you are not using the acceleration and power the car already offers, why do you need more power?". Very good question. He is a wise man and a good mechanic, though I did some of the upgrades anyway!!

[m325ix]

Slantnose, please loose half of your signature, who cares what jetski you had before, it takes half a page to scroll thru that nonsense.

I did this - from 3.0L SC motor to 3.2L with Cams, Lightweight Flywheel, Autothority Mass AirFlow stand alone system+ Autothority ECU chip, SSI non cat with custom muffler.
The new motor feels much stronger, it revs much happier and has more torgue. Yes, it did cost more than the 3.0L rebuild but wouldn't you want something more exciting after you spend your money?