yes to al and thanks

sorry to sound terse, but I don't reply to postings on ALL the forums I belong to unless I have something constructive to ad!!

thanks to all who answered with a constructive response, my question was answered.

and yes i did you use serach.

regards

 

Hey sorry if I upset you, but that's how this forum is, so just be on guard. No hard feelings, but please do a thorough search before asking questions of this nature.

If you searched for 928 engines in 944s, and found nothing, you didn't search correctly. It's been discussed plenty and there are answers and advice. The answer is no it's impossible without major fabrication. The opinion is it will never be worthwhile.

If I don't make people feel bad about asking questions before searching, then everyone will just ask questions without searching.

 

I hope I wasn't that annoying during my first 10 posts... lol

 

You can find out by using "search"

 

Cut the guy some slack. I always find it funny that it takes the same time to reply to a thread telling someone to search as it does to answer his question. Every forum has the same repeat questions. I say either ignore them or offer an answer other than the obvious "use the search" whine.

Anyhow. I think the whole engine swap subject is fascinating and I am always on the lookout for any fresh perspective. If someone can improve upon the power with negating the handling I'm all for it. I'd love to see a "Porsche" solution but the LSx motors just can't seem to be beat when it comes to bang for the buck.

 

Open your wallet wide enough and all is possible.

 

All the egos aside, I'm sure it's possible. You'll probably need to do some fabrication, but otherwise I don't see why it wouldn't be possible. The small block chevy, and the 3.8 are all 90 degree motors... and they fit just fine. The 928 V8 does appear to be quite tall, and I suspect that it's like that because of the height of the cyl heads. Lets take a quick, common sense look at what we have. Is the 2.5 motor not just HALF of a 928? I mean, the cyl heads are interchangeable, are they not? The motor is a slant-4, so the ideal thing to be would be to first check and see if in fact the "slant" is the same as the 90 degree of the original motor.

This would be fairly easy to do by taking a protractor and some string. Take the string and tape it to the center point of the cyl head. Now take that string and bring it to the center point of the crank pulley. Now, find the horizontal center line of the 2.5 block and measure the angle. If it's 45 degrees, (which it certainly looks like to me just eye-balling it), then you know that it should fit.

Assuming the cyl head is at a 45 degree angle, we already know that it will fit in the engine bay, and that it will NOT have clearance issues on the passenger side.

Looking at the firewall, however, you can see that the firewall is indented to make room for the cyl head. With V8s, they typically shift one cyl head forward or backwards by about as much as a little more than the width of a connecting rod. Depending on which is shifted forwards or backwards, it might fit on the drivers side. Clearance from side to side is NOT the issue (clearly), but whether it will properly clear the firewall forward of the cowl area is another issue. You MAY need to modify this area. Honestly, it wouldn't be that difficult. You could cut it, hammer it in and re-weld that area, or just cut out an indent from the passenger side of a wrecked car and weld it in place on the drivers side (keeping into consideration that you'll probably need to relocate the brake booster / master cyl).

Other than that, it appears to me as though it would fit.

I would be VERY surprised if Porsche designed to completely re-design the bell-housing of the 2.5 block when it originally came from the design of the V8 block. I would expect that they would mount up.

It's certainly possible, and I don't think it's a big deal, but you would probably need to see about fabricating or modifying the motor mount on the drivers side. You would probably need a larger cored radiator as well.

As with any motor swap, it'll require some fabbing.

With all due respect to the other guys on here though, engine swapping is not that big of a deal. And to most of the people on here, they haven't actually tried it, so they know not of what they speak. My friend and I have swapped pretty much anything you can imagine into anything, it's just measuring and budget planning before you start that's important. And you must learn to weld...

 

Re-read your first 10 posts and then you'll have your answer....

and I'm sure I was too...

 

But that would mean you guys aren't annoying anymore? Hogwash... jk...

 

You know what would be cool? Take a 944 and put in an engine from one of those monster strip-mine dump trucks. That mother would cook!

 

Someone should drop one of the hayabusa v8's in. Its so damn small I'm sure it would fit.

http://www.h1v8.com/page/page/1562068.htm

 

A busa frankenstein motor is bitchin. I have never heard of it until your post. However, I am sure you can build a 500 bhp 951 including the car AND the suspension for just the price of that engine.

*I just found the price of the busa v8. It costs 26k pounds so comes out to about $51,000 just for the engine and transmission.

 

I hope you guys don't mind me chiming in
The 4 cam versions are surprisingly no wider, the extra 'width' is taken on the inside. The exhaust ports and timing belt pulleys are in the same place on both engines, the intakes move to the center on the 4 cams.
I think it would be very cool if you lived to see completion. The 944/951 has the most beautiful body ever and having a Porsche V8 would be the sign of a seriously engineered car. Anyone can be drawn to the universal cheapness and easiness of a Chevy but why bother? It would yet another easy way out no class hot rod. A Porsche engine would be worthy of saluting!

 

 

The 16V and the 32V are the same width, well almost but close enough that neither will fit between the shock towers.

I'm having a hard enough time figuring out how I'm going to fit a 928 engine in a replica cobra.