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Old 11-19-2008, 03:54 PM   #1 (permalink)
 
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Default Engine Swap: Power To Weight Ratio Info. (Both Gas & Diesel Engines)

Here is Power To Weight Ratio info for common Samurai engine swaps.

**I have done my best to make sure the information provided is accurate.**

90-95 Samurai 1.3L 8V EFI I4 (86-90 1.3L Carb I4)
Horsepower: 66 @ 6,000rpm (63 @ 6,000rpm)
Torque (ft-lbs): 76 @ 3,500rpm
Power To Weight: 2,046lbs* % 76Tq = 1Tq - 26.92lbs
--
Gas Engines:
-
95 Sidekick/Tracker 1.6L 8V TBI I4 (Trail Tough Kit)
Horsepower: 80 @ 5,400rpm
Torque (ft-lbs): 94 @ 3,000rpm
Power To Weight: 2,046lbs* % 76Tq = 1Tq - 21.76lbs
-
96 Sidekick/Tracker 1.6L 16V MPI I4 (Trail Tough Kit & SuzukiLightningConversion)
Horsepower: 95 @ 5,600rpm
Torque (ft-lbs): 98 @ 3,500rpm
Power To Weight: 2,046lbs* % 98Tq = 1Tq - 20.87lbs
(Must have at least 2" lift for oil pan to clear front axle)
-
00 Vitara/Tracker 2.0L (Trail Tough Kit)
Horsepower: 127 @ 6,000rpm
Torque (ft-lbs): 134 @ 3,000rpm
Power To Weight: 2,046lbs* % 134Tq = 1Tq - 15.26lbs
(, Lift amount needed unknown)
-
Chevy 4.3L Vortec V6 (Suzuki Lightning Conversion)
Horsepower: 190 @ 4,400rpm
Torque (ft-lbs): 250 @ 2,800rpm
Power To Weight: 2,046lbs* % 250Tq = 1Tq - 8.18lbs
(Must have at least a 3" lift for oil pan to clear front axle)
-
Fuel Injection Letters Meaning
EFI = Electric Fuel Injection
TBI = Throttle Body Injection (Same as EFI)
MPI = Multi-point Injection
====
Diesel Engines: (Info found Here)
-
86 1.6 Diesel (Haven't Located Installation Kit)
Horsepower: 52 @ 4800rpm
Torque (ft-lbs): 72 @2000rpm
Power To Weight: 2,046lbs* % 72Tq = 1Tq - 28.41lbs
(, Lift amount needed unknown)
-
86 1.6L Turbo Diesel (Haven't Located Installation Kit)
Horsepower: 68 @ 4500rpm
Torque (ft-lbs): 98 @ 2800 rpm
Power To Weight: 2,046lbs* % 98Tq = 1Tq - 20.87lbs
(, Lift amount needed unknown)
====

* Vehicle Weight is Curb "NOT" GVW (Gross Vehicle Weight)
*+ I used Curb Weight as base line to give you a idea of power differents between common engine swaps. I did this because it would be almost impossible to give average common weight for modified a Samurai, because of unlimited number of parts combinations available.

How To Choose Which Engine Is Right For You.

1st, What size tires & lift do you have?
- If your running 2 - 3" lift an 31's or smaller do a 4.16:1 t-case & 4.57 ring & pinion gear swap, then see how you fell about power problem.
- Actually, regardless of engine you go with you should regear your transfer case & axles so your engine doesn't work s0 hard to get you moving an keep you moving. Other thing is regear helps off-road since with engine not working so hard to spin your tires you can crawl slower or gently throttle your way up rock face.

2nd, Think about is what are your plans for your rig.
- Yeah I'll admit that extremely tweaked buggy you saw on tv climbing that jaw dropping 80* hill would look great sitting in driveway but in reality the person driving it does have to drive it to work at 6am monday morning.

3rd, What's your budget?
- Yes that Chevy 262 V6 would be X-Rated fun in your rig but it's gonna run you $6,175.00 for complete kit , not to mention cost of stronger drivetrain components.

I hope the information i have provided you was helpful, In Helping You Decide Which Swap To Do.
Mike124

Last edited by Mike124; 12-15-2008 at 04:26 AM. Reason: New Information Available.
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Old 11-22-2008, 11:14 PM   #2 (permalink)
 
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that's pretty much why if you're going to do the motor swap you go with the 1.6L 16v swap.
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Old 11-22-2008, 11:27 PM   #3 (permalink)
 
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Quote:
Originally Posted by 16vSami View Post
that's pretty much why if you're going to do the motor swap you go with the 1.6L 16v swap.
I'd like to do a AMC 150 2.5L I4 from 87-95 Jeep Wrangler in my samurai, it puts out 120HP an 150ft-lbs toque power to weight ratio be (1TQ - 13.64LBS).

Last edited by Mike124; 11-22-2008 at 11:31 PM.
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Old 11-22-2008, 11:34 PM   #4 (permalink)
 
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hey yea that's even better than the 16v swap. i was told with the lighter samurai components i should be right around 105hp so i basically just think it's about 100hp now which is so much nicer than it was stock.
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Old 11-22-2008, 11:42 PM   #5 (permalink)
 
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Quote:
Originally Posted by 16vSami View Post
hey yea that's even better than the 16v swap. i was told with the lighter samurai components i should be right around 105hp so i basically just think it's about 100hp now which is so much nicer than it was stock.
Yeah, you've gone from 4 lazy Squirrels to 4 Squirrels on steroids.

I'm adding 1.6L 16V to list.
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Old 11-23-2008, 09:23 AM   #6 (permalink)
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You seem to be assuming that the weight of the Sammy remains unchanged. If you start to factor in the weight of thre engine and box then its going to change. A Sammy with a Vortec and the drivetrain to handle the power will be a lot heavier. For me 1.6 16V everytime.
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Old 11-23-2008, 05:10 PM   #7 (permalink)
 
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Quote:
Originally Posted by Rhinoman View Post
You seem to be assuming that the weight of the Sammy remains unchanged. If you start to factor in the weight of thre engine and box then its going to change. A Sammy with a Vortec and the drivetrain to handle the power will be a lot heavier. For me 1.6 16V everytime.
Your correct. If you were to install a V6, vehicle weight will increase big time because of need for stronger transmission, t-case, drive shafts an axles to handle power an it be impossible to calculate a common weight because of difference setups from Samurai to Samurai. That's why i used Curb weight as base line for each swap to give you an idea of what the power differents would be for each swap.
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Old 11-23-2008, 09:41 PM   #8 (permalink)
 
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Mine is definitely worse than the numbers posted here for the stock engine. I started out with a hardtop LWB then put armor plate for the gas tank, differential pumpkins, rocker panels, as well as a brush guard up front. Armor for the t-case is coming soon..

I really have to upgrade the engine. Does anyone have gas mileage numbers for the various engine options listed? It'd be interesting to see those beside the power-weight numbers.
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Old 11-23-2008, 09:50 PM   #9 (permalink)
 
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Quote:
Originally Posted by clivey View Post
Mine is definitely worse than the numbers posted here for the stock engine. I started out with a hardtop LWB then put armor plate for the gas tank, differential pumpkins, rocker panels, as well as a brush guard up front. Armor for the t-case is coming soon..

I really have to upgrade the engine. Does anyone have gas mileage numbers for the various engine options listed? It'd be interesting to see those beside the power-weight numbers.
I'm not 100% but going with either 1.6L you should get better mpg then now cause engine won't be working as hard to get vehicle moving an keep it moving.

I'll include average city/highway mpg info with info above, if can get people to post what there getting.
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Old 11-23-2008, 11:10 PM   #10 (permalink)
 
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Quote:
Originally Posted by Mike124 View Post
I'm not 100% but going with either 1.6L you should get better mpg then now cause engine won't be working as hard to get vehicle moving an keep it moving.
This sounds logical. If at all there will be a drop in gas mileage I imagine that it will be negligible compared to the performance gain.

My lwb used to do 9.4km/li in the city, and around 11 in the highway. That was with the stock engine (carb) running 30in tires, but was before all the armor plate and the 4.16 t-case crawler gears came on. The number is lower now but I still have to measure what it is exactly.
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