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Now THAT'S keepin it in the family


ratedZ

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I was looking with interest at those runners on an actual car a while back. The manifold below changes the flow direction 90 deg. to mate with the heads. Maybe its purpose is to lengthen the overall path from the plenun to the port? Truly strange design.

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Guest greimann

That swap would be interesting from the "dare to be different" aspect, but would it really be desirable from a horsepower per gallon of sweat index? If someone dropped in a Chevy V8 with only 280 HP, one would wonder why are you holding back when 300 to 350 HP is so easily achieved.

 

If one was to sweat 2.5 gallons to achieve 280 HP Q45 swap, the HPGS index would be 112. If you were to go with a typical Chevy swap, assume 2 gallons of sweat for 350 HP, the HPGS would be 175! Clearly an advantage.

 

Just putting that out there for 'yall to consider. twak.gif

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Guest Anonymous

I mentioned the same thing to davy when he opened the hood on his. Hey look its a TPI on sideways... Truly, I'd bet it was done for the very same reason as the TPI manifold. To build torque down low. A full sized car with the motor tuned for good low end torque by virtue of long runners, just like the camaro, the infinitey does have a bit of weight to heft around. What does that motor redline at Davy?

 

Regards,

 

Lone

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If you believe the tach, redline starts at 7000 rpm and ends at 8000 rpm. I have never been above 6500 rpm because I am absolutely chicken about breaking a valve or something---there is no way I could afford a major repair with this motor. Still, the car has had no major problems at all, even with 144K. I like the Q45 and think it would make a great motor in a Z car, but just as Greimann mentioned, the "bang for the buck" Chevy V8's just can't be beat here in the U.S. I would much rather push a Chevy to the extreme knowing that I could tear it apart and fix it myself.

 

Davy

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