A 3.2 SS with stock rods and ARP / Raceware bolts will go 7200 all day. Most street-able cams won't pull that. And it's really not a short stroke, it's a bored out stock stroke. 911s are so over square already, other than the added displacement, I really don't know why people pay for new cylinders when a 3.0 will run with a 3.2 SS given it's built the same way.

You'll see about 240 RWHP from this motor, up about 5 from a3.0 built the same way.

I had to get new P&C's anyway, so it cost me relatively $0 to bump displacement even just a bit. No brainer in my opinion.

Todd

In that case you're right, no brainer. I see a lot of people with perfectly good Mahle cylinders who go buy new 98s just to have a 3.2. That makes no sense.

BTW- I'll be happy with that!! ~80hp over stock, nothing wrong with that. I think Mike can squeeze a few more out though ;-)

I think the short stroke name arose from the comparison to a "stock" 3.2L Carrera with its longer stroke 74.4mm crank? Dunno why that name stuck more than calling it a big bore 3.2 or something like that.


Whatever the case may be, std. 3.0L or 98mm 3.2L, it's a solid engine to build. 3.0L does give up some torque compared to the 98mm 3.2. But either one spins more freely, has better rods and a better crank than a 3.2L long stroke. The only thing a stock 3.2 (and the late '83 3.0L) has over the '78-'83 3.0L is the better case since no oil sump plate makes the case stiffer. That of course ignores injection type and the 3.2 Motronic wins that debate hands-down in my opinion.

Looking forward to seeing how your engine performs. Mike got a fantastic number out of Gertvr's 3.0L build. So i'm sure he's got some tricks he can suggest for your milder 3.2 to wow us.

Todd,

Mike has my motor as well and are using the headers he recommended they do look great! I would have to say by the time he gets done with your motor it will be close to 300 at the crank.
I need to have him get back on mine, hoping to get 350 on 3.4 track motor.
Great build!

Greg

Hey Greg! Think he sent me pictures of your headers as I was deciding on mine. They are like jewelry. I'm not ready for my motor yet, so maybe he'll put yours ahead of mine. I was due to dyno this week, but waiting on a few last minute odds and ends.

Close to 300 would be fantastic!!

Todd

Judgment Day!!!!

http://forums.pelicanparts.com/uploa...1377884125.jpg


Todd

Dyno days, good days, let us know. It looks great.

Last pull was 299.5!! Still some work in the middle yet. Mike's a genius!

Todd

Todd,

I was not far off saying you'll end up close to 300!
Mike is a wizard! Going to be checking in with him next week on finalizing my build direction.

I like your very nice and clean work :-) !

Very nice build. 299 is a darn fine number in my book 300. May I ask at what RPM? Again congrats on a nice build, should be a blast to drive.

Need to double check. 7300 I think.

Some final pictures from Mike. Everything is about done now. We still had the muffler to figure out, both which one and then how to connect it with the v-band flange on the headers. Ultimately decided to go with a new Dansk muffler, and I think Mike and his team did a great job figuring out how to mount it. Back on the dyno tomorrow for some final jetting with the muffler and then I think this one is in the books!!

http://forums.pelicanparts.com/uploa...1381960142.jpg

http://forums.pelicanparts.com/uploa...1381960221.jpg

http://forums.pelicanparts.com/uploa...1381960306.jpg


Todd

Ignition question........
 

Since some of the PP engine gurus are on this thread, I have a question about ignition. What is the advantage/disadvantage of using a 12 plug distributor vs a crank fired system? I know that lots of performance modded Porsche engines use one variation or another distributor, but there are some good direct fire systems out there as well. And, with the direct fire units, there is a large range of adjustment available at the twist of a dial or thru programming. Also, the electronic systems don't have to have caps and rotors replaced from time to time. Your thoughts?

I can think of several reasons to use a distributor on a twin plug engine: a) race or other class rules require it, b) you like the "retro" look, c) you already have the distributor. Anything else?

On function, I think crank fire ECU fire or the like wins hands down. Nothing to get out of whack, less stuff to keep checking and replacing, and a whole lot easier to adjust once you get the hang of it.

I can't speak with any authority, but I have heard that the signalling to the individual coils from the computer can sometimes be subject to electrical interference in the engine bay. Does this make any sense?

Plus that 12 pin distributor just looks fantastic...

Nice looking build. And pretty good power numbers. Enjoy!

Todd - the rear muffler - is that one of the pre 74 mufflers which has been modified ?
What brand is the headers ?

Thanks Roslin

That is a Dansk '74 style muffler that was modified to fit the headers and utilize v-band clamps. I'll shoot you a pm on the headers.

Todd

Here's the exhaust we designed to compliment those merge headers with v-clamp installation. Not better just another way to go.
http://forums.pelicanparts.com/uploa...1382482846.jpg
http://forums.pelicanparts.com/uploa...1382482870.jpg

Yeah, I had looked at some "cans" from Burns Stainless, but ultimately went with this option for various reasons. I'm probably leaving about 6-8hp on the table, but this is an over-built street car, and I know what the motor is capable of so I'm not going to sweat it. Plus, with the vband clamps, the system is so easy to remove I can just run straight pipes for track days, etc.

Nice looking Henry!

Todd

Headed down to FLA yesterday with the little one. Swung by Mike's this morning and get'er loaded up and back on the road. It was a fun, short trip with great company!!!

Creating memories.


http://forums.pelicanparts.com/uploa...1384230155.jpg

Todd

That's a really great looking build. I'm in the planning/dreaming stages of something that may end similarly. It's already a 3.2SS but on CIS, with unknown compression, piston shape, and cams.

Would love to hear your final thoughts once the engine is in the car and driving. I am tossing ideas around, and mainly it's EFI vs. Carbs, Twin plug, or not. One thing that strikes me is that it's a relatively simple build, using time-proven parts and methods - with 300hp. No need to re-invent that wheel!!

I really like the muffler - I have a 2 out dansk on ssi's right now and the drone has to go. Will possibly be stealing mikes ideas for that one!

The headers look nice - if only they had heat! Where are they from?

I hope to have the engine back in its proper place in the next couple of weeks. If it were not for my being so anal (my Wife thinks I'm ADD) it would probably be done. But, there have been a few delays waiting for proper color wires and correct new fasteners, etc.

I'll post a pic and and update soon. Hope to get some work accomplished this weekend.

Todd

Been bogged down with little projects (and 2 little boys, holidays, etc.), but took a big step in the right direction today. Still need to hook everything up, but it's downhill now.

http://forums.pelicanparts.com/uploa...1388703011.jpg


Todd

In my opinion, the biggest reason to use 12 pin dizzy and MSD is plug voltage. It's about twice that of a crank fire set-up.

Todd,

That's a beautiful engine and impressive numbers. Be forewarned though that with that kind of power the rear end will dance without notice. It's a fun dance, but the rear end will step out far easier now especially if your going to stay with stock wheels and tire sizes. Mike is hard to beat.

Well, still not running :'(

I've been bogged down with travel, family duties, the Polar Vortex, etc.

I believe I got the electric finalized with a harness for the MSD boxes (with a little help from timmy2).
http://forums.pelicanparts.com/uploa...1391015432.jpg

Fab'd up a mount for an oil breather catch can (can wasn't polished in the online pic when I ordered.... a bit shiny for me)
http://forums.pelicanparts.com/uploa...1391015552.jpg

But then I realized my oil filler neck ruins everything, so out came the tank to ship to Pacific Cooler for some attention. That's about a 2 week set back, mostly in travels. Hope to have it running as soon as I get the tank back though!!! Might need to touch up a few spots in the engine bay too. Anyone know where I can order a little paint? Can probably just brush it on the texture and won't be noticeable.


Todd

Classic "while I'm in there".... good for you!

You ever finish setting this up and enjoy the car?

Yup, car is all sorted out and I've been enjoying it (not as much as I should however). It's definitely a whole different car now.

Todd

I think we need some sort of video with some good sound :) please

Yeah, what he said. Great job!