Next Spring I plan on dropping the engine on my 79 911. 1st timer!

[FinallyGotOne]

So I am frustrated because I dropped almost a grand to replace a leaking oil cooler, only to have it leaking again 10 months later. It was a used part so I am out the R&R again no matter what. I decided it may just be time to drop out the engine and replace the cooler myself. While I'm at it I was thinking of perhaps making some changes also.

What in your opinions would be a good change while it's out?

I have to say I really am so tired of driving this car with such an incredibly short
1st gear!! I am thinking perhaps to change out the gearing to have a taller 1st gear which should improve quickness quite a bit, correct?

Who would suggest going to a 3.2 bore, and piston set up? and If I do that do I need to change out the camshaft, (if I change out the camshaft I was told I would need to get rid of the CIS...)

Would going up to a 3.2 be a noticeable improvement to the power?

So let's hear your thoughts, what I am trying to accomplish is:

More quickness... I already have the 74 911 exhaust so I can do no more to the exhaust.

When I was young, I remembered my step dad would just bore out the cylinders and increase his piston size to increase his power. and resurface the heads

I know the 3.0 has a really tame camshaft so I have been thinking that would be a good change out.

Has anybody just simply changed out the Cam on a 3.0 and left the rest as is? or would that not work?

And finally - I have been told that simply changing the gearing to a longer pull in 1st would accomplish every bit of the quickness I am looking for, but I would suffer in the higher gears and need to be running in 5th much more?? please advise on that, I would much rather do this as I really am fond of the lil 3.0 as it is...Honestly I drive this car in 5th gear rarely anyways

so lots of questions, but I know you all will have some great opinions and solutions!!

My car is the 1979 911 SC, with 74 oem 911 exhaust and headers, with A/C and no air pump.

Also it has been lightened with fiberglas front and rear bumps.

[TechnoViking]

Do you have the Colorado collector plates? If so, you could put carbs on it.

Regardless of what you do or don't do performance-wise, I'd get Wayne's 101 projects book and do all the common oil leak fixes while you have the engine out. I go through that list any time I drop the engine. And get his engine rebuild book if you want to mess with the cams.

There are probably a dozen guys in the Denver area who can help out (me included) if you need a hand on the big day.

[SC-targa]

Originally Posted by FinallyGotOne

I have to say I really am so tired of driving this car with such an incredibly short
1st gear!! I am thinking perhaps to change out the gearing to have a taller 1st gear which should improve quickness quite a bit, correct?

Who would suggest going to a 3.2 bore, and piston set up? and If I do that do I need to change out the camshaft, (if I change out the camshaft I was told I would need to get rid of the CIS...)

Would going up to a 3.2 be a noticeable improvement to the power?

So let's hear your thoughts, what I am trying to accomplish is:

More quickness... I already have the 74 911 exhaust so I can do no more to the exhaust.

When I was young, I remembered my step dad would just bore out the cylinders and increase his piston size to increase his power. and resurface the heads

I know the 3.0 has a really tame camshaft so I have been thinking that would be a good change out.

Has anybody just simply changed out the Cam on a 3.0 and left the rest as is? or would that not work?

And finally - I have been told that simply changing the gearing to a longer pull in 1st would accomplish every bit of the quickness I am looking for, but I would suffer in the higher gears and need to be running in 5th much more?? please advise on that, I would much rather do this as I really am fond of the lil 3.0 as it is...Honestly I drive this car in 5th gear rarely anyways

so lots of questions, but I know you all will have some great opinions and solutions!!

My car is the 1979 911 SC, with 74 oem 911 exhaust and headers, with A/C and no air pump.

Also it has been lightened with fiberglas front and rear bump.

Believe you mean a shorter first gear to make your car a little quicker.

Changing first gear would likely be spendy, because it's cut into the shaft. I think you may have been thinking of shorter gearing overall by changing out the ring and pinion gears. Many like the shorter gearing, though it is easier to break than your original gears.

You can't just bore out the cylinders on your 911, because they are likely alusil and they would require a special etching process after the overbore and you should have pistons with an iron coating I believe.

The cam is very mild, with little overlap to work with the CIS. 964 cams are an upgrade. Changing to carbs allows more options.

Regards,

Jerry

[FinallyGotOne]

I have heard something about PMO's? But in Colorado would I have cold starting problems a lot if I went to carbs?
Also, what would I be looking at doing a change to carbs? how much money approximately?

[FinallyGotOne]

I have heard something about PMO's? But in Colorado would I have cold starting problems a lot if I went to carbs?
Also, what would I be looking at doing a change to carbs? how much money approximately?