Quarter Mile Time

[lang]

What is a stock mkIII supra turbo supposed to run?

[Jeeves]

Something like 15.2seconds, bone stock.

[sbettencourt]

no!!! i've seen a stock 88 supra turbo run low 14's on bold tires...

[raptorracing]

Originally Posted by sbettencourt

no!!! i've seen a stock 88 supra turbo run low 14's on bold tires...

by bold do you mean bald; and by that do you mean slicks?? please explain!!

[repinS]

low 14's?

[Jeeves]

Originally Posted by repinS

low 14's?

+1

It wasn't stock then.

Mk3's completely bone stock aren't fast at all.

[mymk3]

A lot of people will say what it SHOULD do, but in reality those things will do high 15, 5 speed and low 15 auto, only if you spend a decent dough things pick up from there.

[Jeeves]

I'm not sure you've got that right. In factory form there's no reason a 5speed would be slower. It has less loss through the transmission, and the auto's weren't notorious for their fast shifting.

[westsidebigred]

An 89 supra has 232 hp and 254 ftlbs of torgue and run a 15.1 if you could produce a perfect slip or next to. 88 has a different tranny but all time slips truly stock are 15 and up
my supra and I weighed 3950 and ran a 14.3 @ 95 mph with full 3" exhaust and B.o.v , Air intake

[Jeeves]

Originally Posted by westsidebigred

An 89 supra has 232 hp and 254 ftlbs of torgue and run a 15.1 if you could produce a perfect slip or next to. 88 has a different tranny but all time slips truly stock are 15 and up
my supra and I weighed 3950 and ran a 14.3 @ 95 mph with full 3" exhaust and B.o.v , Air intake

/cue buzzer.

The transmission never changed.
All MA70 N/A 5spd's used the W58.
All MA70 Turbo 5spd's used the R154.

The differential's final drive ratio changed...
All 89-92 turbo's had the same ratios (3.73).
All 87-88 turbo's had the same ratios (3.91).
All N/A's had the same ratios (4.30).

As for the weights:
1989+ Turbo - 3650lbs (officially listed)
1986.5 NA - 3450lbs (measured, wet, w/o driver)
1987 Turbo Hardtop - 3440lbs (1/2 tank, minimalist setup, measured)
1988 Turbo (+shit) - 3850 (1/2 tank, all tools, stereo + sub, w/o driver)
1989 Turbo Targa - 3600lbs (1/2 tank, stock, w/o driver, measured)

Stock Mk3 Supra Specs:

N/A Specs:
Horsepower: 200 @ 6200rpm
Torque: 188 ft-lbs
Weight: approx. 3400-3600
Engine: 7M-GE 2954cc
Transmission: W58
Injector Size: approx. 305 - 380cc, low impedance (high impedance 89+ models)
Spark Plugs: NGK BCPR5EP-11
Compression: 9.2:1
Cylinder Pressure: 156
Fuel Pressure: 33-40psi
Coefficient of drag: 0.32 (without wing)

Turbo Specs:
Horsepower: 230 @ 5600rpm (232 89+ models)
Torque: 246ft-lbs (256 89+ models)
Weight: approx. 3500-3700 (Depends on options)
Engine: 7M-GTE 2954cc
Transmission: R154
Boost (M/T): 5.5 - 7.5psi
Boost (A/T): 4.8 - 6.0psi
Turbo: Toyota CT-26
Spark Plugs: NGK BCPR6EP-N8
Injector Size: approx. 440cc, low impedance
Compression: 8.4:1
Cylinder Pressure: 142
Fuel Pressure: 33-40psi
Fuel Cutoff: approx. 10-13psi
Intercooler Efficiency: 3psi drop @ 6.8psi
Wheels/Tires: 16x7" Rims with 225/50-16 Tires
Coefficient of drag: 0.33

'Official' 0-60 Times:

Non Turbo:
Motor Trend, May 1986
0-60 mph = 8.11 sec
1/4 mile = 16.17 sec
60-0 = 132 ft
Skidpad = 0.86 g

Turbo model:
Motor Trend, November 1986
(Pre-production model)
0-60 mph = 7.84 sec
1/4 mile = 16.17 sec @ 89 mph
60-0 = 126 ft
Skidpad = 0.86 g

Car and Driver, April 1987
0-60 mph = 6.4 sec
1/4 mile = 15.0 @ 91 mph
70-0 = 188 ft
Skidpad = 0.83 g
Top speed = 145 mph

Motor Trend, April 1987
0-60 mph = 6.88 sec
1/4 mile = 15.40 sec @ 92 mph
60-0 = 126 ft
Skidpad = 0.85 g

Road and Track, February 1989
0-60 mph = 6.6 sec
1/4 mile = 15.2 sec
60-0 = 146 ft
Skidpad = 0.83 g

Car and Driver, April 1989
0-60 mph = 6.2 sec
1/4 mile = 14.7 sec @ 95 mph
Top speed = 146 mph
70-0 = 176 ft
Skidpad = 0.85 g


HP/Weight/Quarter Mile Calculators:

Now, with that info, go to any of these calculators and you'll see that "LOW" 14s are never in the equation. ~15seconds.

http://www.geocities.com/MotorCity/4601/hpcalc.html
http://www.dragsource.com/index.php?...s&calctoview=4
http://www.dragsource.com/index.php?...s&calctoview=5