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Twin turbo 4 cam 32 valve engine bay photo.
There seems to be a fair bit of interest in turbocharging the bulletproof all alloy quad cam Lexus 4.0L motor. Here's a photo of one that OZVENOM built for a customer a little while ago. you have to feel the torque that this car makes down low to appreciate how much fun you can have in a road car. The fact that this complete motor can be duplicated for roughly the cost of my shortblock alone makes it even more amazing.... :eek:
Basically, every custom piece that you can see in this photo came from Venom Custom Fabrication, Ph 07 3208 3224. http://79indypace.stangnet.com/cgi-b...s/turboeng.jpg |
Craig - that does look to be a very fine installation. What power and torque does that motor make?
What work has to be done to these Lexi motors? Are they simple/inexpensive to overhaul? |
Wilf - as far as rebuilding or prepping the motor goes, you don't even bother!!! maybe throw a new timing belt in there for the sake of it, but you'll often see reasonably low mileage motors at the Jap Wreckers for $1000- or so. They're all alloy, forged crank/rods/pistons, 6 bolt mains, etc etc. The Japs sure know how to OVERengineer a motor! :eek:
The motor in question has a couple of small turbos on it at the moment. It's never had a proper dyno tune, and as a result it's always been tuned really conservatively. A couple of newer, bigger turbos are on the way now. I think Scott would agree that the new combination should be good for an easy 500hp with absolute reliability. If it were mine, I'd go slightly bigger again in the turbo department and throw a bit of good fuel in it. In that trim, it'd be an easy 650+hp motor. Bear in mind that this would be possible in a $1000 motor with totally standard internals, without even pulling the oil pan off it.... |
does anyone know how much power you can squeeze out the 4.0L without turbo charging?
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