944 2V power
#1
Rennlist Member
Thread Starter
944 2V power
I ran across an old engine build file recently, and thought I'd share the results which I found pretty surprising. Here's the build:
Core was a stock and untouched 2.5 2V.
Block sleeved with 4" bores
JE 10.8:1 pistons to my spec
Stock cam
Stock intake and TB
951 injectors
Stock valve size, competition valve job
Optimised ports
Stock exhaust manifold
3.0 crank, race prepped
951 rods with Rod Mod
Stock ECU with tuned chip
Here are the results. Given the limited mods (no cam, no header, but with 3L stroke), I was pretty surprised to get a tad over 200HP on my engine dyno. It's a pretty good example of what the 2V engine can provide with mostly stock Porsche parts.
Core was a stock and untouched 2.5 2V.
Block sleeved with 4" bores
JE 10.8:1 pistons to my spec
Stock cam
Stock intake and TB
951 injectors
Stock valve size, competition valve job
Optimised ports
Stock exhaust manifold
3.0 crank, race prepped
951 rods with Rod Mod
Stock ECU with tuned chip
Here are the results. Given the limited mods (no cam, no header, but with 3L stroke), I was pretty surprised to get a tad over 200HP on my engine dyno. It's a pretty good example of what the 2V engine can provide with mostly stock Porsche parts.
#4
Rennlist Member
Thread Starter
The crank is a drop-in, but pistons have to match the increased stroke (shorter compression height). The stock 951 rod (and probably any stock 944 rod) will hit the pan rail due to the longer stroke, so it has to be relieved for clearance. A custom rod will typically clear.
#6
Race Car
are you using aftermarket or stock ECU?
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#10
Race Car
#11
Rennlist Member
Thread Starter
It was tuned in real time on the dyno and a chip created. John Behe at RPR Automotive created it. He can do the same for you on his chassis dyno:
http://rprautomotive.com
http://rprautomotive.com