To swap or not to swap... That is the question
#1
Instructor
Thread Starter
To swap or not to swap... That is the question
Hello,
Now that I managed to revive my 1989 944 2.7, I am facing a terrible decision, should I leave it intact or should I upgrade it a bit...
I know that the transmission will probably need to be rebuilt. The engine is good now, compression went from 167, 86, 125, 131 to 186, 187, 188, 189 and not leaking oil anymore. But you know, it's a 8v 2.7... Not big on power!
I might have the opportunity to get my hands on a S2 engine and transmission, I am thinking about doing a swap... I would like your input on this, is it worth it?
The rest of the car has been completely redone or in good condition. It is scheduled for repaint later this summer and there is no rust at all.
Thanks
Martin
Now that I managed to revive my 1989 944 2.7, I am facing a terrible decision, should I leave it intact or should I upgrade it a bit...
I know that the transmission will probably need to be rebuilt. The engine is good now, compression went from 167, 86, 125, 131 to 186, 187, 188, 189 and not leaking oil anymore. But you know, it's a 8v 2.7... Not big on power!
I might have the opportunity to get my hands on a S2 engine and transmission, I am thinking about doing a swap... I would like your input on this, is it worth it?
The rest of the car has been completely redone or in good condition. It is scheduled for repaint later this summer and there is no rust at all.
Thanks
Martin
#2
Burning Brakes
Join Date: Oct 2021
Location: Southern WI - 89S2 Megasquirt PNP
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S2 will be night and day difference over the 2.7L, but for todays standards it wont be "fast" but it will be much more "fun". Much more torque
The head on the 2.7L is valuable for a 3.0 turbo swap (its the only 8V head that bolts to the 3.0 block without modification), so selling the head and/or engine could help fund your S2 swap.
The head on the 2.7L is valuable for a 3.0 turbo swap (its the only 8V head that bolts to the 3.0 block without modification), so selling the head and/or engine could help fund your S2 swap.
#3
Instructor
Thread Starter
S2 will be night and day difference over the 2.7L, but for todays standards it wont be "fast" but it will be much more "fun". Much more torque
The head on the 2.7L is valuable for a 3.0 turbo swap (its the only 8V head that bolts to the 3.0 block without modification), so selling the head and/or engine could help fund your S2 swap.
The head on the 2.7L is valuable for a 3.0 turbo swap (its the only 8V head that bolts to the 3.0 block without modification), so selling the head and/or engine could help fund your S2 swap.
Exactly what I thought. I rebuilt the head of my 2.7, I intend to get as much as I can for it! I was not planning on racing with it anyway. But more torque would be more than welcome!
But as a Porsche owner, is it a sacrilege to replace the engine with something other than the original one? I believe it is less an outrage than to place a GM engine in!
M.
#4
RL Community Team
Rennlist Member
Rennlist Member
Since you have a good, rust-free tub, I don't think there is any significant downside, assuming the new engine and transaxle are good-to-go condition. There will probably be a few minor packaging issues to deal with. The S2 air cleaner housing will go under the nose panel. Apparently it does fit in the NA body, but is a tight squeeze. Will add a bit of complication for routine maintenance.
The S2 did come with the 4-pot fixed calipers & larger rotors from the Turbo, and if it were me, I would want to do the brake upgrade as well. Probably the stock NA brakes are OK, assuming condition, but Porsche did feel the need for the more powerful brake system with these cars and brakes are the area I feel most conservative about.
The S2 did come with the 4-pot fixed calipers & larger rotors from the Turbo, and if it were me, I would want to do the brake upgrade as well. Probably the stock NA brakes are OK, assuming condition, but Porsche did feel the need for the more powerful brake system with these cars and brakes are the area I feel most conservative about.
#5
Instructor
Thread Starter
Since you have a good, rust-free tub, I don't think there is any significant downside, assuming the new engine and transaxle are good-to-go condition. There will probably be a few minor packaging issues to deal with. The S2 air cleaner housing will go under the nose panel. Apparently it does fit in the NA body, but is a tight squeeze. Will add a bit of complication for routine maintenance.
The S2 did come with the 4-pot fixed calipers & larger rotors from the Turbo, and if it were me, I would want to do the brake upgrade as well. Probably the stock NA brakes are OK, assuming condition, but Porsche did feel the need for the more powerful brake system with these cars and brakes are the area I feel most conservative about.
The S2 did come with the 4-pot fixed calipers & larger rotors from the Turbo, and if it were me, I would want to do the brake upgrade as well. Probably the stock NA brakes are OK, assuming condition, but Porsche did feel the need for the more powerful brake system with these cars and brakes are the area I feel most conservative about.
I thought about the brakes, surely they are a stronger on a « real » S2, but as there is no significant weight addition, it all comes down to how fast and aggressive you drive it. I know for a fact that I won’t push it to the limit. My wife would not let me anyway! 😂
Thanks for your input
Martin