Truck Specs

1986 Toyota Pickup

Dana60/70
7.17's
40's
W56
OM617
Stock 5.5mm
MW pump

Turbo Test #1 3/20/19

KKK K26 @ 9psi
50° Ambient
IAT = 120° Idle
Temps = °F

Ratios 3.954:1 1:1 0.85:1

Gears 1st 4th 5th
Boost vs RPM 1psi @ 1800 RPM 3psi @ 1800 RPM Same relationship as 4th
Comes up quick after gear, but boost never
1800RPM. *Max boost "takes off". *Max boost at
5.4psi @ 3000 RPM at ~2150 RPM* ~2150 RPM*
IAT vs Boost 140° @ 9psi 160° @ 9psi
Boost vs DP 2psi vs 6psi 3psi vs 6psi Same as 4th gear results
6psi vs 8psi
9psi vs 14psi
Boost vs EGT 3psi = 450° 9psi = 1150° @ 46mph
6psi = 500°
65° @ 0psi*
85° @ 5psi*
IAT vs DP 100° @ 10psi * 165° @ 12psi
IAT vs EGT 120° = 400° 150° vs 1000° 165° vs 1000°
0-52mph time 25s
5psi = 600°
10psi vs 700°
DP vs EGT 12psi vs 800°

Highlighted fields were updated 3/21/19

* Values taken with 34° ambient temp

Turbo Test #2 3/21/19

KKK K26 @ 15psi
38° Ambient
IAT = 180° Idle
Temps = °F
Gears 1st 4th
Boost vs RPM 1psi @ 1800 RPM 3psi @ 1800 RPM
5.4psi @ 3000 RPM Comes up quick after
10psi @ 3600 1800RPM. 15psi @ 2900
RPM RPM
180° @ 9psi
192° @ 12psi
IAT vs Boost 210° @ 15psi
Boost vs DP 2psi vs 6psi 1psi vs 1psi
2psi vs 2psi
3psi vs 5psi
15psi vs 22psi
Boost vs EGT 3psi = 450° 10psi = 700°
6psi = 500° 15psi = 900-1000°
IAT vs DP 205° @ 20psi *
IAT vs EGT Same as Test # 1 150° vs 1000°
0-52mph time 32s
10psi = 700°
15psi = 825°
20psi = 850°
22psi = 875° (15psi
DP vs EGT Boost)

fields indicate no data was recorded.

Turbo Test #3 3/22/19

TB03 @ 9psi
34° Ambient
IAT = 80° Idle
Temps = °F
Gears 1st 4th
Boost vs RPM 1psi @ 1900 RPM 3psi @ 1800 RPM
Comes up quick after
1800RPM. 9psi @ 2250
6psi @ 3000 RPM RPM
115° @ 3psi
125° @ 6psi
IAT vs Boost 80° @ 3psi 135° @ 9psi
Boost vs DP 1psi vs 4psi 1psi vs 3psi
2psi vs 4psi
2psi vs 5psi 3psi 3psi vs 5psi
6psi vs 8psi
vs 8psi 9psi vs 11psi
Boost vs EGT 3psi = 450° 6psi = 700°
6psi = 500° 9psi = 950°
130° vs 800° 140°
vs 1000° 150° vs
IAT vs EGT Same as Test # 1 1100°
0-52mph time 25s
DP vs EGT 10psi = 700°

fields indicate no data was recorded.

Turbo Test #4 3/22/19

TB03 @ 15psi with Boost T
60° Ambient
IAT = 155° Idle
Temps = °F
Gears 1st 4th
Boost vs RPM 10psi @ 3800 RPM 15psi @ 2600 RPM
175° @ 9psi
185° @ 12psi
IAT vs Boost 200° @ 15psi
Boost vs DP 9psi vs 11psi
12psi vs 15psi
15psi vs 18.5psi
Boost vs EGT 10psi = 825°
15psi = 900°
200° vs 950°
IAT vs EGT 210° vs 1000°
0-52mph time 26s
10psi = 700°

DP vs EGT

fields indicate no data was recorded.

Turbo Test #5 3/23/19

TB03 @ 12psi with wastegate maxed out
51° Ambient
IAT = 75° Idle
Temps = °F
Gears 1st 4th
Boost vs RPM 12psi @ 2600 RPM
IAT vs Boost Test #4 Results
Boost vs DP 9psi vs 10.5psi (1.16) 9psi vs 11psi (1.222)
12psi vs 15psi (1.25)
12psi vs 13.5psi (1.227) 15psi vs 18.5psi (1.23)
Boost vs EGT 10psi =800° 10psi = 825° 15psi
= 900°
170° vs 950°
IAT vs EGT 180° vs 1000°
0-52mph time 26s
DP vs EGT

fields indicate no data was recorded.

Turbo Test #6 3/29/19

TB03 @ 9psi with wastegate adjusted
36° Ambient
IAT = N/A
Temps = °F
Gears 1st 4th
Boost vs RPM
IAT vs Boost Test #4 Results
Boost vs DP 9psi vs 10psi (1.111) 9psi vs 11psi (1.222)
Boost vs EGT
IAT vs EGT
0-52mph time
DP vs EGT

fields indicate no data was recorded.

Turbo Test #7 4/8/19

K03 @ WG Wired Shut ~12psi max boost seen
75° Ambient
IAT=N/A
Temps = °F
Gears 1st 4th
Boost vs RPM Could not build 1psi @ 1150 RPM
3psi @ 1500
RPM
6psi @ 1800 RPM
boost in 1st 9psi @
2100 RPM
150° @ 6psi
IAT vs Boost
Boost vs DP 1-5
2-6
3-8
6 - 15
8 - 18
Boost vs EGT 9psi - 1100°
IAT vs EGT
0-52mph time
DP vs EGT

Turbo Test #8 10/3/19 DRIVE PRESSURE GAUGE FAILED

HE221W 5.5cm2 wastegate at 20psi (Very indirect silicon boot coupling to utilize factory intake manifold inlet)
58° Ambient
IAT=80° at start
Temps = °F
Gears 1st 4th
Boost vs RPM Needle moved up at
1300 RPM
1psi @ 1600
RPM 3psi
@ 1800 RPM
150° @ 9psi
155° @ 12psi
160° @ 15psi
170° @
IAT vs Boost 20psi
Boost vs DP ERROR
Boost vs EGT 9psi - 600°
15psi - 800°
IAT vs EGT
0-52mph time 26s
DP vs EGT

Turbo Test #9 2/5/20

44mm HX30W wastegate at 21psi. 6cm2 exhaust housing.
23° Ambient
IAT= 120
Temps = °F
Gears 3rd 4th
Boost vs RPM 1 psi @ 1167-1250 1psi @ 1084-1265 RPM
RPM
IAT vs Boost N/A
Boost vs DP ERROR
Boost vs EGT N/A
IAT vs EGT
0-52mph time 31s
DP vs EGT

Turbo Test #10 3/16/20

HE200W 5cm2 wastegate at 26 psi
37° Ambient
IAT=60° at start
Temps = °F
Gears 1st 4th
Boost vs RPM 1psi @ 1190 RPM 5psi @ 1200 RPM
100° @ 9psi
IAT vs Boost 120° @ 15psi
160° @ 20psi
Boost vs DP ERROR
Boost vs EGT 15psi - 700°
20psi - 750°
25psi - 800°
IAT vs EGT
0-52mph time 26s
DP vs EGT

Turbo Test #11 3/16/20

HE221W 7cm2 wastegate at 26 psi
37° Ambient
IAT=60° at start
Temps = °F
Gears 1st 4th
Boost vs RPM 1psi @ 1700 RPM 2psi @ 1200 RPM
5psi @
1500 RPM
95° @ 9psi
IAT vs Boost 120° @ 15psi
135° @ 20psi
Boost vs DP ERROR
Boost vs EGT 15psi - 680°
20psi - 720°
25psi - 800°
IAT vs EGT
0-52mph time 29s
DP vs EGT

Turbo Test #12 3/17/20

HX30 40mm wastegate at ~21 psi
41° Ambient
IAT=° at start N/A Tested without IAT sensor
Temps = °F
Gears 1st 4th
Boost vs RPM 1psi @ 1800 RPM 1psi @ 1200 RPM
5psi @
1550 RPM
95° @ 9psi
IAT vs Boost 120° @ 15psi
135° @ 20psi
Boost vs DP ERROR
Boost vs EGT 15psi - 720°
20psi - 820°
IAT vs EGT
0-52mph time 28s
DP vs EGT

Turbo Test #13 4/18/20

HE200W 5cm2 wastegate at 26 psi. Modified intake manifold
72° Ambient
IAT=60° at start
Temps = °F
Gears 1st 4th
Boost vs RPM
IAT vs Boost
Boost vs DP
Boost vs EGT 26psi - 925° (flat ground)

26psi - 1120° (steep

grade)
IAT vs EGT
0-52mph time
DP vs EGT

Turbo Test #14 6/10/20 NEW DRIVE PRESSURE GAUGE INSTALLED

HE200W 5cm² wastegate at 25 psi. WITH BOLT-ON ADAPTER.
72° Ambient
IAT=100° at start
Temps = °F
Gears 1st 4th
Boost vs RPM
IAT vs Boost
Boost vs DP
Boost vs EGT 10psi - 750°
15psi - 750°
20psi -
775°
25psi - 825°
IAT vs EGT
0-52mph time
DP vs EGT

3rd gear
MPH RPM Boost Drive Pressure
35 3000 13 16
40 3500 20 26
46 4000 25 35

Turbo Test #15 6/12/20

HE200W 5cm² wastegate at 25 psi. WITH BOLT-ON ADAPTER.
92° Ambient
IAT=92° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure
35 3000 12 13
40 3500 17 23
46 4000 23 33
52 4500 23 >36

Turbo Re-Test #16 6/20/20

HE200W 5cm² wastegate at 25 psi. Modified intake manifold.
75° Ambient
IAT=75° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure
35 3000 12 14
40 3500 16 20
46 4000 23 33
 52 4500 24 36

Turbo Re-Test #17 6/20/20

HE221W 7cm² wastegate at 25 psi. Modified intake manifold.
80° Ambient
IAT=80° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure
35 3000 8 8
40 3500 13 15
46 4000 19 23
50 4200 25 34

Turbo Re-Test #18 6/23/20

HE221W 5.5cm² wastegate at 20 psi. Modified intake manifold. (Original test was done with poor-flowing silicon couplers to fa
74° Ambient
IAT=74° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure
35 3000 12 13
40 3500 15 18
46 4000 19 25
52 4500 20 29
E GAUGE FAILED
e factory intake manifold inlet)
SSURE GAUGE INSTALLED
B/DP Ratio EGT
1.23 700
1.30 700
1.40 950

EGT H20 Temp

1.08 600 190
1.35 650 190
1.43 875 210
>1.56 1000 210

EGT H20 Temp

1.17 600 185
1.25 700 192
1.43 800 194
 1.50 1000 200

EGT H20 Temp

1.00 575 180
1.15 650 183
1.21 750 192
1.36 975 204

s done with poor-flowing silicon couplers to factory inlet hole.)

EGT H20 Temp

1.08 600 181
1.20 625 190
1.32 775 192
1.45 900 196
NOTES
Stock turbo (bone stock) comes alive at 1800RPM. Need RPM when MAX BOOST is achieved.

IAT is very hot, even at idle. Doesn't rise unless loading engine at high speed.
Boost/Drive Pressure is never at a 1:1 ratio in any gear or any RPM

Doesn't appear to be a direct relationship between Boost & EGT. Recording this to compare EGT @ Max Boost between Turbo

IAT does not appear to be directly linked to Drive Pressure

Inconclusive data
Had to retest this. I could never achieve 25 seconds again. Must have been a fluke.

Temperature values were taken after maintaining DP and allowing EGT's to settle to a steady point. DP and EGT appear to be l
This turbo takes approx. 1100 RPM to go from zero to full boost. Hoping to see better results if full boost can be achieved at lo

setups.

Will have to come back to these figures to calculate turbo's efficiency

This turbo appears to only be efficient from 0-2psi. The T3 is said to have about 6psi less DP at full boost. In 4th gear, driving a

without bogging the engine, the boost is 5psi. There is no way to drive while maintaining only 2psi. I believe this turbo needs a

wheel or more exhaust flow.

Could not get pyro over 1000° on flat ground in 4th gear. Increased boost appears to have helped EGT's.
IAT rose substantially above 9psi of boost

Slight decrease in 0-52 time. This test is being performed on gravel and is hard to keep driving conditions consistent.

Will only monitor Boost vs RPM for 1st gear in future tests. All other info seems irrelevent or redundant with 4th gear data.
The DP ratio appears to be at a higher down low, but lower at high boost. 9psi vs 11psi with T3 vs 9psi vs 14psi with K26.

It was very easy to get high EGT's with this turbo in stock form. The Pyro is suspect in Test #2 for not registering correctly. EGT

Shift points will now be approx. 3800 RPM for this test, to help keep things consistent. There is a huge difference in accelerati

The Turbosmart Boost T would not allow me to run any lower than at least 17psi. My gauge only reads up to 15psi. This means

This varies so vastly from driving on flat ground to hills, etc. Whether I hit it from a stop or going from 55 to 60. I will no longer

feel it is irrelevant.
A solid 25° drop in EGT's at a constant input of 10psi Boost.
Was able to hit 12.5psi max. Boost was not fast to build at all. Confirmed no boost leaks between compressor outlet and intak

leak in compressor housing, as housing was FUBAR'd when removing 1 of the 4 compressor housing bolts. Could only re-instal

reassembly.

Did not observe DP at full boost, as WG was wired shut, so DP would be irrelevant
Could hit 1200°, but EGT's were not excessively high

No boost leaks after welding tube w/ bead onto manifold. 20psi wastegate max. Boost rises quickly after 1200 RPM.

Could maintain 800° indefinitely if running at 15psi boost.

This test may be inconclusive being performed on gravel. Lots of wheel spinning occurred 1st-3rd gears.
RPM calculated from GPS speed. Tach not functioning. Boost rose much slower than with 5.5cm2 HE221

Pyrometer not functioning. Thank you, Autometer.

Was unable to accurately measure where boost began building in 4th gear. Basically, I wasn't able to run in 4th gear without h

Taking into account it was only 37° during this test, the EGT's never exceeded 900° with WOT in 5th gear going 55mph.
Could easily pass 900° in 5th gear on flat ground.

DP and EGT started to rise at sustained speeds over 4000 RPM. Reving the engine past 4000 RPM for short bursts to gain spee

Retested this turbo at higher ambient temps. Was unable to surpass 925° with the accelerator floored in 5th gear on flat groun
 Similar to previous tests without bolt-on adapter. Slightly laggier.

Drive pressure is slightly higher with the bolt-on adapter versus the modified intake manifold with central inlet. This is to be ex

EGT's were not a problem when keeping engine below 4000 RPM. See new matrix for 3rd gear stats.

From this test, you can see the drive pressure goes up dramatically after 4000 RPM. Water temp also begins to i
EGT's are stable <4000 RPM. Between 4000 and 4500 RPM (roughly around 4200), EGT started to increase rapidly.
The best solution I see for making this turbo work even better for the OM617 with the bolt-on adapter is to regulate the waste
To maintain a max Boost/DP ratio of 1:1.1, a wastegate set at roughly 15psi should be sufficient.

H20 Temp
The modified intake manifold felt noticably more responsive than the bolt-on adapter. Temperature were a bit cooler. Drive p

only slightly higher with the bolt-on method. The butt-dyno said the modified manifold was a bit more fun to drive. The numb

minimal differences.
 The modified intake manifold felt noticably more responsive than the bolt-on adapter. Temperature were a bit cooler. Drive p

only slightly higher with the bolt-on method. The butt-dyno said the modified manifold was a bit more fun to drive. The numb

minimal differences.

H20 Temp
Better drive pressure ratios than the 5cm², which is to be expexted. Noticeably less boost and power at the lower RPM range.

upgrade for someone planning to eventually upgrade their pump. A huge improvement over the OEM turbos. Take note that I

RPM because DP was unreadable at 4500 RPM.

y inlet hole.)

H20 Temp
Properly testing this turbo with the same intake ducting as the other tested turbos yielded expected results. This turbo falls rig

the 5cm² and 7cm². A great turbo for the stock IP for those wanting to drive over 4000 RPM for sustained periods.
ave been much higher in Tes t#2.

hifting at 2400 RPM vs 3800 RPM.

egate is not opening and allowing full flow thru the wastegate when I want it to. DP could actually be lower when the WG is set properly.
works great. Driving at sustained speeds above 4k RPM is not a good idea.

ly able to see higher EGT's by flooring it in 5th while going up the steepest grade around (the hill outside my shop). I've never been able to
nce the exhaust flow is disturbed and rerouted.

n to a lower pressure.
when the WG is set properly.
shop). I've never been able to make it up this hill with this truck without shifting down to 4th gear. With this setup, I made the hill in 5th g
s setup, I made the hill in 5th gear while maintaining speed. The water temp spiked from 180° to 215° during the hill climb.
the hill climb.
Truck Specs
1986 Toyota Pickup
Dana60/70
7.17's
40's
W56
OM617
Dieselmeken 7.5mm MW
pump

Turbo Test #18 6/29/20

HE221W 5.5cm² wastegate at 20 psi. Modified intake manifold. No intercooler.
87° Ambient
IAT=87° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure EGT
35 3000 12 13 1.08 600
40 3500 16 20.5 1.28 700
46 4000 19 25 1.32 800
52 4500 19 25 1.32 975

Gears 1st 4th

Boost vs RPM 1psi @ 1900 RPM 1psi @ 950 RPM
5psi @
5psi @ 2100 RPM 1350 RPM
0-52mph time 16s

Turbo Test #19 7/10/20

HE221W 5.5cm² wastegate at 20 psi. Modified intake manifold. With intercooler.
87° Ambient
IAT=87° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure EGT
35 3000 10 12 1.20 550
40 3500 15 21 1.40 630
46 4000 16 23 1.44 710
52 4500 17 29 1.71 900

Gears 1st 4th

Boost vs RPM 1psi @ 1900 RPM 1psi @ 950 RPM
3 psi 3 psi @
@ 2000 RPM 1025 RPM
5psi @ 5psi @ 1350 RPM
 16s - same as w/o IC
0-52mph time

Turbo Test #20 7/16/20

HX30 40mm. Wastegate not hooked up. Modified intake manifold. With intercooler.
85° Ambient
IAT=85° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure EGT
35 3000 9 12.5 1.39 600
40 3500 13 19 1.46 675
46 4000 17 28 1.65 800
52 4500 19 36+ 2+ 950

Gears 1st 4th

Boost vs RPM 1psi @ 2150 RPM 1psi @ 1100 RPM
3 psi 3 psi @
@ 2400 RPM
5psi @ 1200 RPM
2650 RPM 5psi @ 1500 RPM

Turbo Test #21 7/17/20

HE200 5cm² wastegate at 26 psi. Modified intake manifold. With intercooler.
92° Ambient
IAT=92° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure EGT
35 3000 12 16 1.33 600
40 3500 16.5 22 1.33 625
46 4000 22 36+ 1.64+ 800
52 4500 n/a n/a n/a n/a

Gears 1st 4th

Boost vs RPM 1psi @ 1650 RPM 1psi @ 900 RPM
3 psi 3 psi @
@ 1900 RPM
5psi @ 1150 RPM
2500 RPM 5psi @ 1300 RPM

Turbo Test #22 7/18/20

HE221 7cm² wastegate at 26 psi. Modified intake manifold. With intercooler.
94° Ambient
IAT=94° at start
Temps = °F
3rd gear
 MPH RPM Boost Drive Pressure EGT
35 3000 7 7 1.00 520
40 3500 10 12 1.20 575
46 4000 17 23 1.35 700
52 4500 22 35 1.59 900

Gears 1st 4th

Boost vs RPM 1psi @ 1900 RPM 1psi @ 1150 RPM
3 psi 3 psi @
@ 2150 RPM
5psi @ 1200 RPM
2850 RPM 5psi @ 1450 RPM

Turbo Test #23 8/6/20

HE200 5.5cm² w/ A.S. Wastegate at 21 psi. Modified intake manifold. With intercooler.
86° Ambient
IAT=86° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure EGT
35 3000 13 18 1.38 590
40 3500 17 27 1.59 620
43 3600 20 36 1.80 750

Gears 1st 4th

Boost vs RPM 1psi @ 1425 RPM 1psi @ 850 RPM

Turbo Test #24 8/7/20

HX30 44,, wastegate at 26 psi. Modified intake manifold. With intercooler.
76° Ambient
IAT=76° at start
Temps = °F
3rd gear
MPH RPM Boost Drive Pressure EGT
35 3000 4 4 1.00 600
40 3500 5 6 1.20 600
46 4000 9 12 1.33 620
50 4150 22 36 1.64 950
? ? 27 46 1.70
Gears 1st 4th
Boost vs RPM 1psi @ 2150 RPM 1psi @ 1200 RPM
H20 Temp
180 It is possible to drive without an intercooler at sustained speeds,
192 but it is very easy to hit EGT's >1250° during acceleration.
195 Possibly a good turbo candidate with an I/C, but not without
200 one.

H20 Temp
182 Addition of IC yielded noticable drop in EGT and H20 temps, but
190 increased B/DP ratios. Was able to climb the large hill outside my
192 shop, in 5th gear, at 58mph, with only partial throttle, and
195 without even hitting 1200°F EGT.
H20 Temp
182 This turbo ran a bit warmer than the HE221 5.5cm², which is to
190
192
198 be expected.

Made hard pull in 4th gear. 26psi boost, 1150° was hottest EGT.

Intake temps were 180/225°. This was on flat ground, throttle

floored, in an attempt to get the EGT over 1250°.

H20 Temp
182 At 10psi boost and lower, DP remained at a 1:1 ratio.
194 4000 RPM is still the peak engine speed with this turbo, but it
194 DOES work with the 7.5mm pump. Spool up from 10psi to 26psi
n/a is nearly instantaneous with full throttle.
Addition of the IC removes the supercharger-like response off-idle.

Made hard pull in 5th gear. 26psi boost, 1100° was hottest EGT.

Intake temps were 210/260°. This was on flat ground, throttle

floored, in an attempt to get the EGT over 1250°. Water hit 206°
H20 Temp
181 If you're looking for a high-RPM setup, this turbo is for you. It
186
can handle the RPM range at least up to 4500 RPM. Above 4500
195
205 RPM was not tested.

Made hard pull in 5th gear. 26psi boost, 1175° was hottest EGT.

Intake temps were 240/300°. This was on flat ground, throttle

floored, in an attempt to get the EGT over 1250°. Water hit 220°

H20 Temp
182
190
193

H20 Temp
184 The 44mm HX30 has plenty of top-end to run 30psi. The major
184 trade-off here the bottom-end performance with the turbo not
188 beginning to spool till signifciantly later than the HE221 7cm²,
200 and lower boost numbers across the board. With EGT's actually
coming in higher, and the turbo itself weighing ~10 LBS more,
the only true benefit is the simplicity of the oil drain and T3
flange.