My Modified IROC vs My 2013 370Z Touring
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Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
My Modified IROC vs My 2013 370Z Touring
The IROC is equipped with a 5.7 V8 in front of a T-5. The rear ratio is a limited slip 3.23. 330 HP @ 5000, 380 ft. lbs of torque @ 3800.
The 370Z is equipped with a 3.7 V6 in front of a 7-speedo auto (and paddle shifters). The rear ratio is a limited slip 3.40. 332 HP @ 7000, 270 ft. lbs of torque @ 5200.
Both vehicles are in the 3200-3300 pound vicinity.
Which car would likely be the winner at quarter mile's end?
Top end would also be interesting. The 370Z is electronically limited to 155. My guess is that the IROC would be in that ballpark.
JamesC
The 370Z is equipped with a 3.7 V6 in front of a 7-speedo auto (and paddle shifters). The rear ratio is a limited slip 3.40. 332 HP @ 7000, 270 ft. lbs of torque @ 5200.
Both vehicles are in the 3200-3300 pound vicinity.
Which car would likely be the winner at quarter mile's end?
Top end would also be interesting. The 370Z is electronically limited to 155. My guess is that the IROC would be in that ballpark.
JamesC
Last edited by JamesC; Apr 22, 2013 at 05:53 PM.
Joined: Dec 2001
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: My Modified IROC vs My 2013 370Z Touring
Only one way to know for sure, James. Let's take them to the track. I'll drive your IROC. 
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
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From: Pasadena, TX
Car: 1991 RS
Engine: 5.0
Transmission: 700r4
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Joined: Oct 2010
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From: colorado
Car: 1987 formula
Engine: 305 tpi
Transmission: t5
Axle/Gears: 3.45
Re: My Modified IROC vs My 2013 370Z Touring
The favor is looking good for the 370z. It has a little better gears but also with the 2 extra gears it will have a lower gear for lauching. If you put better gears in the Iroc with the torque maybe but also which one is lighter?
Joined: Jul 2003
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From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: My Modified IROC vs My 2013 370Z Touring
The Iroc-Z will more than likely be the winner at the end of the 1/4 mile, just from looking at the data alone it will have a much better rate of acceleration...
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
they are roughly the same weight,same power but the iroc has 100+ ft-lbs I say the camaro smokes it
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From: Michigan!
Engine: Vortec 4200 Inline 6 PT70 Turbo..
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Re: My Modified IROC vs My 2013 370Z Touring
IROC wins all day if it actually makes that power and you can shift/launch!
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From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: My Modified IROC vs My 2013 370Z Touring
Similar power, weight and gears so it should be close.
Whether the IROC wins or not, it will sound much better trying. But I would advise against doing this at all unless you have an extra T5 ready to go.
Whether the IROC wins or not, it will sound much better trying. But I would advise against doing this at all unless you have an extra T5 ready to go.
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From: colorado
Car: 1987 formula
Engine: 305 tpi
Transmission: t5
Axle/Gears: 3.45
Re: My Modified IROC vs My 2013 370Z Touring
The Iroc will destroy it off the line with the torque but the 370 has really different tranny ratios the rear gear isnt all of it cause I bet it goes through gears just as fast as the Iroc just with a way higher rpm redline. It has tighter gears for the 7 gears cause you probably have the same overdrivejust 7 gears coming to it for tighter gears
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: My Modified IROC vs My 2013 370Z Touring
Here's what I've found.
From Nissan:
13.3 @ 105.7
From CarCraft and ProSim Drag Simulator (the weight was a bit more and the gears a bit steeper behind a TH350):
12.98 @ 104
BTW, the exhaust note on the 370Z is pretty darned cool, though maybe not as wicked as the IROC at WOT.
JamesC
From Nissan:
13.3 @ 105.7
From CarCraft and ProSim Drag Simulator (the weight was a bit more and the gears a bit steeper behind a TH350):
12.98 @ 104
BTW, the exhaust note on the 370Z is pretty darned cool, though maybe not as wicked as the IROC at WOT.
JamesC
Last edited by JamesC; Apr 26, 2013 at 10:13 AM.
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From: Siloam Springs AR.
Car: 1998 Trans/Am, 1989 RS Camaro
Engine: LS1, LQ9 6.0
Transmission: 4L60E, 4L60E
Axle/Gears: 2.73, 2.73
Re: My Modified IROC vs My 2013 370Z Touring
Why dont we just race them?
370 is going to win tho.
370 is going to win tho.
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