Thinkin about pickin up this V8 RX7
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Joined: May 2006
Posts: 5,686
From: I was up above it, now I'm down in it
Car Info: New Government Motors SUV!
hey lets be fair, rotaries get horrible mileage, have a flat powerband, don't make exceptional power.........but can be fairly reliable........
they just can't handle forced induction or anything aggressive, lol, kinda defeating the purpose. +1 for ls1, is there a weight difference between that and rotary?
they just can't handle forced induction or anything aggressive, lol, kinda defeating the purpose. +1 for ls1, is there a weight difference between that and rotary?
Rotaries are cool and all, but they are only a small reason why RX-7s and 8s are the beez neez
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iTrader: (5)
Joined: Oct 2005
Posts: 574
From: San Francisco
Car Info: 2005 STI, 2004 S2000, 1993 RX7
Registered User
Joined: May 2006
Posts: 5,686
From: I was up above it, now I'm down in it
Car Info: New Government Motors SUV!
hey lets be fair, rotaries get horrible mileage, have a flat powerband, don't make exceptional power.........but can be fairly reliable........
they just can't handle forced induction or anything aggressive, lol, kinda defeating the purpose. +1 for ls1, is there a weight difference between that and rotary?
they just can't handle forced induction or anything aggressive, lol, kinda defeating the purpose. +1 for ls1, is there a weight difference between that and rotary?
'01 General Motors LS1
Type Overhead valve, pushrod V-8
Displacement 5665cc (346ci)
Cost $6,400 (new/crate) $2,000 (used)
Weight 487 pounds
Material aluminum block/aluminum heads
Horsepower* (bhp) 350 @ 5600 rpm
Torque*(ft-lb) 375 @ 4400 rpm
Redline* 6000 rpm
MPG** 19 City/28 Highway
Aftermarket Support The Chevy small-block practically invented the aftermarket
'95 Mazda 13B-REW
Type 2-rotor, Wankel design, twin-sequential turbocharged
Displacement 1308cc (80ci)
Cost $2,000-$2,500 (rebuilt) $1,100-$2,000 (used)
Weight 425 pounds
Material aluminum block/iron rotors
Horsepower* (bhp) 255 @ 7000 rpm
Torque*(ft-lb) 220 @ 5000 rpm
Redline* 8000 rpm
MPG** 17 City/25 Highway
Aftermarket Support High, but not LS1 high
*stock, from manufacturer. ** EPA listed ratings for manual
transmission versions of the '01 Chevrolet Corvette and '94 Mazda RX-7
WEIGHT
13B RX-7
-----------LEFT RIGHT
Front (lb) 711 595
Rear (lb) 650 700
Front/Rear (%) 49.2/50.8
Left Rear/Right Front (%) 46.90%
Right Rear/Left Front (%) 53.00%
TOTAL (lb) 2660
LS1 RX-7
----------LEFT RIGHT
Front (lb) 688 678
Rear (lb) 696 677
Front/Rear (%) 49.9/50.1
Left Rear/Right Front (%) 50.20%
Right Rear/Left Front (%) 49.70%
TOTAL (lb) 2737
Type Overhead valve, pushrod V-8
Displacement 5665cc (346ci)
Cost $6,400 (new/crate) $2,000 (used)
Weight 487 pounds
Material aluminum block/aluminum heads
Horsepower* (bhp) 350 @ 5600 rpm
Torque*(ft-lb) 375 @ 4400 rpm
Redline* 6000 rpm
MPG** 19 City/28 Highway
Aftermarket Support The Chevy small-block practically invented the aftermarket
'95 Mazda 13B-REW
Type 2-rotor, Wankel design, twin-sequential turbocharged
Displacement 1308cc (80ci)
Cost $2,000-$2,500 (rebuilt) $1,100-$2,000 (used)
Weight 425 pounds
Material aluminum block/iron rotors
Horsepower* (bhp) 255 @ 7000 rpm
Torque*(ft-lb) 220 @ 5000 rpm
Redline* 8000 rpm
MPG** 17 City/25 Highway
Aftermarket Support High, but not LS1 high
*stock, from manufacturer. ** EPA listed ratings for manual
transmission versions of the '01 Chevrolet Corvette and '94 Mazda RX-7
WEIGHT
13B RX-7
-----------LEFT RIGHT
Front (lb) 711 595
Rear (lb) 650 700
Front/Rear (%) 49.2/50.8
Left Rear/Right Front (%) 46.90%
Right Rear/Left Front (%) 53.00%
TOTAL (lb) 2660
LS1 RX-7
----------LEFT RIGHT
Front (lb) 688 678
Rear (lb) 696 677
Front/Rear (%) 49.9/50.1
Left Rear/Right Front (%) 50.20%
Right Rear/Left Front (%) 49.70%
TOTAL (lb) 2737
The '93 on the other hand had two engines within 78k miles before he finally threw in le towel. I am very interested to see how the Renesis motors stand up.
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Joined: Jun 2008
Posts: 842
From: San Jose CA
Car Info: 2005 WRX STi, 1993 240sx (going under knife soon)
While I agree with virtually everyone else about waiting to find a stock one or one with an LS mill already swapped in, if you are still thinking about it, and you can afford it, $3500 ain't all that much, and if things don't work out with the Ford mill, you can part out the car, or something, and put the money towards something else. Personally, I'd choose the LS6 first (that's what I hope to swap in to my 240) and the LS2 second.
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