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A question I get asked a LOT, is "how much power will my engine make with one of your supercharger kits on it?"
It's the proverbial how long is a piece of string type of question, so my standard response is that it all depends on how much boost your engine can take. Standard atmospheric pressure is 1 bar, or 14.7 psi, so for every additional 14.7 psi of boost you add, you are adding twice the mount of air, and so theoretically you can effectively double your current horse power. Of course, most people have no idea what power their engine is currently making, or what boost it is capable of handling so it's a bit of a rhetorical answer.
However, I recently I stumbled across an old post by AJ Sims on TheSamba, where he listed dyno results for various engine combinations he had tested.
It's obviously only as good as the information posted, which is limited as far as detailed specs go, but it is an interesting list none the less.
This is it, for future reference...
A.J.Sims Fri Apr 06, 2007 7:16 pm
What did a turbo motor of my size make on the dyno?
This is a quick list of some of the motors that made there way to the dyno. Most of the combos were made to make the most power on pump gas. Some and most of the owners would add some race gas and turn it up!
1600cc
With good valve train and our old base 1600T turbo kit (32x36 pergresive carb) on pump gas.
110hp and 121tq @11lbs (test was on our junk 1600 motor, motor was a used motor to start, we used it as a turbo for 19,770 miles, We did add dual springs, retainers,keepers,SS valves and 1.25:1 rockers with C/M push rods)
1641cc
With 1600T Ghia kit (T25 turbo) LBC1 cam,35x32 ported heads,7.4:1 on pump gas.
127hp and 141tq @10lbs. This motor was snappy and sound like a big 2L.
1776cc
with our LBC1 cam and basic 1600T kit (T25 turbo) stock 35x32 heads 7.5:1 on pump gas.
139hp and 154tq @ 7lbs
1835cc
with our LBC1 cam and 1600T kit (T3 turbo). Motor was used in our baja 67 bug. This motor started off as a 46mm Kadron motor making 96hp and 107tq at the wheels (no belt and aircleaners off) with a old Babe Erson cam.
With a turbo made 155hp and 165tq @ 8lbs. Motor then made its way too the LowBugget race car for two years and ran best of 11.44 @ 118mph at 22lbs of boost. (it did split a cylinder on its last pass trying to run 24lbs of boost!) but on that pass clicked off a 1.42sec 60' and 6.98@101mph in the 1/8 mile but the sound of the air coming out of the cylinder made me shut it down!
1915cc
with our base 1600T kit (T25 turbo), LBC2 cam, pocket port 40x35 heads.On pump gas.
167hp and 176tq @8lbs of boost.
1915cc
with our LBC2 cam, base1600T kit (T3 turbo) with our old and small 32x36 pergresive carb.
176hp and 207tq at the wheels on 15lbs of boost. This motor in a stock 1968 bug ran a best of 13.31 @101mph in 1/4 mile on 165 stock tires @12lbs of boost!
1915cc
1600T kit with a (T3 turbo) and 40x35 ported heads.
241hp and 252tq @ 15lbs of boost. Car ran 11.79@ 115mph on DOT slicks .Full stock steel 67 bug.
1915cc
with our Manx kit, (T3/T4 turbo), ported 40x35 heads and the holley 500 carb.
240hp and 252tq @ 13lbs of boost. This motor was built to make power, I hope to get info of what this car runs in the 1/4 mile and on the street soon!
2054cc
with our 2000TS kit (T3 turbo) and a holley 500 carb. LBC3 cam, 40x35 pocket port heads, 7.8:1
198hp and 236tq at the wheels on pump gas. I can run up to 12lbs on pump gas but we leave the boost at 8lbs just in case we get a bad batch of gas.This motor has over 48,000 miles on it now! Car runs a best of 8.55 in the 1/8 mile on 205/65 tires on pump gas.
Would you like to go for a ride in this car? In car video, out for test drive!
http://www.lowbugget.com/more_turbo.wmv
2054cc
with our 1600T kit and (T3 Super 60 turbo) holley 500 carb. 40x35 pocket port heads. LBC3 cam.
No Dyno info. Track 12.20 at 109mph on 18lbs boost with DOT Street Tires.
2110cc
with our 2000TS kit. (T3/T4 turbo) 40x35 ported heads 7.8:1our LBC3 cam
246hp and 267tq @20 lbs of boost @ 4,900rpms. On 12lbs of boost this monster made 174hp and 240tq. @ 3,800 rpm's. This thing would drive like a dream! Over 200 foot ponds of tourqe at less than 4,000rpms !!!! We stoped the dyno pull as all we wanted was to make more than 225hp. once we did that there was no reason to keep beating on it!
This beast is going in to a 1970 bug for street use only. (the owner says!)
2276cc
Off Road/Drag Race kit, (T3/T4 turbo) Holley 500 carb LBC4 cam 42x37 ported heads.
256hp and 258tq on 14lbs of boost. All dyno rpm pulls below 6,000 rpms
I had all the dyno sheets so i put them in one list for you!
It's the proverbial how long is a piece of string type of question, so my standard response is that it all depends on how much boost your engine can take. Standard atmospheric pressure is 1 bar, or 14.7 psi, so for every additional 14.7 psi of boost you add, you are adding twice the mount of air, and so theoretically you can effectively double your current horse power. Of course, most people have no idea what power their engine is currently making, or what boost it is capable of handling so it's a bit of a rhetorical answer.
However, I recently I stumbled across an old post by AJ Sims on TheSamba, where he listed dyno results for various engine combinations he had tested.
It's obviously only as good as the information posted, which is limited as far as detailed specs go, but it is an interesting list none the less.
This is it, for future reference...
A.J.Sims Fri Apr 06, 2007 7:16 pm
What did a turbo motor of my size make on the dyno?
This is a quick list of some of the motors that made there way to the dyno. Most of the combos were made to make the most power on pump gas. Some and most of the owners would add some race gas and turn it up!
1600cc
With good valve train and our old base 1600T turbo kit (32x36 pergresive carb) on pump gas.
110hp and 121tq @11lbs (test was on our junk 1600 motor, motor was a used motor to start, we used it as a turbo for 19,770 miles, We did add dual springs, retainers,keepers,SS valves and 1.25:1 rockers with C/M push rods)
1641cc
With 1600T Ghia kit (T25 turbo) LBC1 cam,35x32 ported heads,7.4:1 on pump gas.
127hp and 141tq @10lbs. This motor was snappy and sound like a big 2L.
1776cc
with our LBC1 cam and basic 1600T kit (T25 turbo) stock 35x32 heads 7.5:1 on pump gas.
139hp and 154tq @ 7lbs
1835cc
with our LBC1 cam and 1600T kit (T3 turbo). Motor was used in our baja 67 bug. This motor started off as a 46mm Kadron motor making 96hp and 107tq at the wheels (no belt and aircleaners off) with a old Babe Erson cam.
With a turbo made 155hp and 165tq @ 8lbs. Motor then made its way too the LowBugget race car for two years and ran best of 11.44 @ 118mph at 22lbs of boost. (it did split a cylinder on its last pass trying to run 24lbs of boost!) but on that pass clicked off a 1.42sec 60' and 6.98@101mph in the 1/8 mile but the sound of the air coming out of the cylinder made me shut it down!
1915cc
with our base 1600T kit (T25 turbo), LBC2 cam, pocket port 40x35 heads.On pump gas.
167hp and 176tq @8lbs of boost.
1915cc
with our LBC2 cam, base1600T kit (T3 turbo) with our old and small 32x36 pergresive carb.
176hp and 207tq at the wheels on 15lbs of boost. This motor in a stock 1968 bug ran a best of 13.31 @101mph in 1/4 mile on 165 stock tires @12lbs of boost!
1915cc
1600T kit with a (T3 turbo) and 40x35 ported heads.
241hp and 252tq @ 15lbs of boost. Car ran 11.79@ 115mph on DOT slicks .Full stock steel 67 bug.
1915cc
with our Manx kit, (T3/T4 turbo), ported 40x35 heads and the holley 500 carb.
240hp and 252tq @ 13lbs of boost. This motor was built to make power, I hope to get info of what this car runs in the 1/4 mile and on the street soon!
2054cc
with our 2000TS kit (T3 turbo) and a holley 500 carb. LBC3 cam, 40x35 pocket port heads, 7.8:1
198hp and 236tq at the wheels on pump gas. I can run up to 12lbs on pump gas but we leave the boost at 8lbs just in case we get a bad batch of gas.This motor has over 48,000 miles on it now! Car runs a best of 8.55 in the 1/8 mile on 205/65 tires on pump gas.
Would you like to go for a ride in this car? In car video, out for test drive!
http://www.lowbugget.com/more_turbo.wmv
2054cc
with our 1600T kit and (T3 Super 60 turbo) holley 500 carb. 40x35 pocket port heads. LBC3 cam.
No Dyno info. Track 12.20 at 109mph on 18lbs boost with DOT Street Tires.
2110cc
with our 2000TS kit. (T3/T4 turbo) 40x35 ported heads 7.8:1our LBC3 cam
246hp and 267tq @20 lbs of boost @ 4,900rpms. On 12lbs of boost this monster made 174hp and 240tq. @ 3,800 rpm's. This thing would drive like a dream! Over 200 foot ponds of tourqe at less than 4,000rpms !!!! We stoped the dyno pull as all we wanted was to make more than 225hp. once we did that there was no reason to keep beating on it!
This beast is going in to a 1970 bug for street use only. (the owner says!)
2276cc
Off Road/Drag Race kit, (T3/T4 turbo) Holley 500 carb LBC4 cam 42x37 ported heads.
256hp and 258tq on 14lbs of boost. All dyno rpm pulls below 6,000 rpms
I had all the dyno sheets so i put them in one list for you!
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