https://losangeles.craigslist.org/sfv/pts/d...6800950909.html




Is this a road i wanna go down possibly

Or run away at high speed

Price seems right , shout out to the cheap sob

It's an ok price for a core. It has absolutely no place in a 4 cylinder car. Turning and shifting into gear has absolutely no meaning to it's health. It can be destroyed inside and still turn and shift. A rebuild is usually $2-5K and that's not including the $3-4K in parts to convert it to a side shifter for a 914.

How do you propose to use it? With what engine? Your would need an aftermarket tailcone to mount in a similar fashion to the 914 transmission. The mainshaft splines are different so perhaps a new clutch & flywheel. Did I mention that could become expensive? Without work you would have a single forward gear and multiple reverse. Were you serious?

So to use this i have to get a 6/

You need a 911....lol

Even with a 6 in a 914 just use the 901. Unless you are pushing serious HP you don't need a different transmission

200+ HP & $10k is about right.

Are you skilled ?
How much horsepower ?
Good job ?....no kids ?

........ time for Dr. Evil to chime in

I’m running a 915 with my 3.2 six. IMHO a 7:31 915 is a waste of money for a 914. The 914 trans is also a 7:31 Ring and pinion. The gear ratios are also similar to a 914. So the only advantage of this 915 is a stronger 1st gear. Most guys with the 914 trans and a six, start off in second or baby first. I’m running a 1986 915 trans which has an 8:31 ring and pinion, which makes all the gears taller for the bigger motor.

Porsche went to the 915 transmission when they bumped 911 displacement to 2.4 back in 1972. I figured their engineers felt they needed the stronger transmission or they wouldn’t have spent the money designing and building the 915 transmission (unless it was mainly for their racing program). Money was tight for Porsche back in those days.

I’m going to run an early 915 with a 7:31. What rear tires are you running?
@steve

the 915 FS, is the early cast in throw out bearing guide tube,,they have been known to come loose.

"Run away at High speed"

I’m running GT flairs with (rear) 245x40x17 and (front) 225x45x17
Eight and nine inch Fixse fm10 rims

Thanks. I have a pair of 225x50x15 but I guess I'll need some fat tires with more profile if I do some longer trips.

I have 10k in my 915 conversion. 1k for core, 5k to rebuild it, 3k for 916 kit to make it work in a 914 and 1.5k for a limited slip. Totally worth it for me and my 3.2. The previous motor was a 2.7 and I was happy with the stock trans and gearing. I just babied first gear and trashed on 2nd-5th. The 914 trans is also easier to shift and it’s nice having 2nd and 3rd on the same plane.

Yea, there is no way to do a 915 into a 914 for cheap.

*My early 915 was $900. I'm using a PMS cableshifter and conversion hanger but it's still a $1K conversion. The trans needs a rebuild but I'll do the labor and diff flip and my shop is picking up the parts tab.

I picked up 2 extra 915 trans for $550 each. Couldn't resist.

Yes that is where I am at too!!

re: @steve's posts above - excellent info that should influence decision making on "GT project" builds

- when i upgraded to 3.2 in 2013 i b'ot the Bott kit & had a fresh rebuilt 915 (from a 911 track project i gave up on) - both are still on the shelf

- after much deliberation & research, decided to stick with a sideshifter and just baby first gear (in any case 1st is mostly only good for getting up a driveway hill or such) - you'll never use 1st in AX or on track

for street use i run 7x16 Fuchs all around with 225/50 AS3's (easy to cross-rotate for better tire wear given my race spec alignment) (.... factory flared car with long studs & wheel spacers)

- those 225/50x16 are virtually same running dia as the oem 185/70x15, so no speedo calibrate issues (245/45 on my 8x16's is about same)

- the car freeway cruises at 2800 rpm @24mpg ('89 3.2 with Wong chip) -

for $1200 and time invested you can have a 904 mainshaft in a 901 & NEVER worry about twisting off the mainshaft (THE primary reason for doing a 916 conversion) - 'course that doesn't solve low first gear, but you'll almost never use it anyway (did i mention that's a lot cheaper than doing a 916 conversion?)

- i have 2 more known good sideshifters in the barn, so if i do break one it's not a big deal & i can have the car back on road in a day's time

and i still see 901 sideshifters going for $250 in the classifieds section

Steve Timmons took me out in one of his 911-3.8 conversion cars. He’s been doing the 964/993 conversion for years - Instant-G. He lit the tires in first, slammed it into second and as we were hitting third, I felt like the car was ready to take off. I have 240hp in my 3.2 but I have a 914 box with first gear deleted. I have to slip the clutch and start out in second. It works but it’s not even close to the instant-g experience. I’m building a hotter 3.2-3.4 and I want a trans that lets me play. Unfortunately, it doesn’t come easy or cheap

yup - and how fast were you going in 1st gear at 7000 rpm? - and how much time did you lose in up shift to 2nd where you spend your entire AX timing life?

oh- maybe beat a '63 'vette to the next stoplight?

- just start in 2nd & stay there

smoking tires is great for spectators at drift events - i dunno of any Porsche competition where it is relevant

For me it was the difference between ho hum and exciting. I want exciting so it will get a 915.