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pushrod 5.0 (MILD/ Torque) turbo build for an old scout II help

  • Thread starter Thread starter vz58
  • Start date Start date Apr 21, 2024
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 21, 2024
#1
  • Apr 21, 2024
  • #1
Hello all, I have had my 67 fastback gta since 1984....but this thread is about a push rod 5.0 for my daily driver 77 scout II and I need some advice.

The Scout II is heavy, I want a daily driver that is low revving but fun to drive. When I go to pass on a country road or merge I want to do it without struggling. My other daily is a 22 Mustang GT so I don't need a "thrill" or make it "scream" vehicle Scout II. I do off road a little bit and the low end "umpf" is where its at.

Weight 4600 LBS
Axle ratios 3.07
33" tires
5 speed NV4500 transmission.

The motor:
5.0 HO (1989)
Holly Terminator X
static compression 9.3:1
AFR 165 heads
Cam Comp 35-512-8 camshaft
adv 258/264
.050 206/121
lift .480/.480
LSA 114
TMOSS style ported gt40 lower
Gt 40 upper
ADDED 2" spacer between upper and lower intake (again aiming for torque)
65 mm throttle body

Turbo
Compressor side:
trim 47
induc 66
exducer 96

exhaust side
trim 85
induc 80
exducer 73
A/R .91

Air to water intercooler (Scouts are very tight in front of the motor so air to air would be difficult)
5-6 PSI max boost using an electronic controlled waste gate

BBK unequal headers turned around for the turbo.
3" exhaust to muffler then (2) 2.25" exhaust out back

I plan on using E85 for this truck.

Thoughts on the combination for my goals? The motor is together so it might be a little late....

Does anyone have suggestions on starting point for timing etc?
 
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 21, 2024
#2
  • Apr 21, 2024
  • #2
vz58 said:
Hello all, I have had my 67 fastback gta since 1984....but this thread is about a push rod 5.0 for my daily driver 77 scout II and I need some advice.

The Scout II is heavy, I want a daily driver that is low revving but fun to drive. When I go to pass on a country road or merge I want to do it without struggling. My other daily is a 22 Mustang GT so I don't need a "thrill" or make it "scream" vehicle Scout II. I do off road a little bit and the low end "umpf" is where its at.

Weight 4600 LBS
Axle ratios 3.07
33" tires
5 speed NV4500 transmission.

The motor:
5.0 HO (1989)
Holly Terminator X
static compression 9.3:1
AFR 165 heads
Cam Comp 35-512-8 camshaft
adv 258/264
.050 206/121
lift .480/.480
LSA 114
TMOSS style ported gt40 lower
Gt 40 upper
ADDED 2" spacer between upper and lower intake (again aiming for torque)
65 mm throttle body

Turbo
Compressor side:
trim 47
induc 66
exducer 96

exhaust side
trim 85
induc 80
exducer 73
A/R .91

Air to water intercooler (Scouts are very tight in front of the motor so air to air would be difficult)
5-6 PSI max boost using an electronic controlled waste gate

BBK unequal headers turned around for the turbo.
3" exhaust to muffler then (2) 2.25" exhaust out back

I plan on using E85 for this truck.

Thoughts on the combination for my goals? The motor is together so it might be a little late....

Does anyone have suggestions on starting point for timing etc?
Click to expand...
I forgot to mention I had a 1990 Bronco with the 5.8 and it was a DOG.... I loved the truck, hated the weak motor and want to avoid this again. It killed the joy of driving that old truck.
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,034
1,625
194
NJ
Apr 21, 2024
#3
  • Apr 21, 2024
  • #3
I probably wouldn't use a turbo. Especially for that amount of boost.
This is one of those occasions where a kennebell would shine.
 
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 21, 2024
#4
  • Apr 21, 2024
  • #4
2000xp8 said:
I probably wouldn't use a turbo. Especially for that amount of boost.
This is one of those occasions where a kennebell would shine.
Click to expand...
You are absolutely right and I looked at a m90 too, but I have the turbo and wastegate etc and adding another $2k isnt in the budget right now
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,034
1,625
194
NJ
Apr 21, 2024
#5
  • Apr 21, 2024
  • #5
An m90 really wouldn't have been worth the effort with afr heads.
My Saleen explorer 5.0 had an m90 (which was only briefly available for explorers only). I even had it ported.
When the restriction goes down, you need more boost and it can only be stretched so far.
You would have gotten torque from it, but most likely just a few more hp than you are probably making NA.

Is this a running and driving project? How far along is it?
You should post pictures, everything these days seems to be an LS swap, so it would be nice to see something with a pushrod 5.0.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,154
21,325
234
Box behind Walmart
Apr 21, 2024
#6
  • Apr 21, 2024
  • #6
These are shipping again but I would [still] call them first:

Mustang 5.0L 1986-1993 Fox Body Supercharger Kit - Kenne Bell Superchargers

Mustang 5.0L 1986-1993 Fox Body Supercharger Kit! Get the performance you've been looking for with this powerful Mustang supercharger. This state-of-the-art Ford 5.0L supercharger kit takes your
kennebell.net



This is torque [Right Fookin' Meow].

Ask me how I know...
 
Reactions: General karthief
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 24, 2024
#7
  • Apr 24, 2024
  • #7
 
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 24, 2024
#8
  • Apr 24, 2024
  • #8
 
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 24, 2024
#9
  • Apr 24, 2024
  • #9
 
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 24, 2024
#10
  • Apr 24, 2024
  • #10
 
V

vz58

Member
Apr 21, 2024
8
2
13
Central NC
Apr 24, 2024
#11
  • Apr 24, 2024
  • #11
Sorry for the double picture post. The body (obviously is on the rotisserie). The rear suspension is 4 link with panhard and air bags. Progress is slow because I want to do it once. Not having to constantly rebuild.
 
Reactions: RaggedGT and General karthief
F

Flyboy60

20+ Year Stangneter
Dec 11, 2004
115
35
38
Jan 21, 2026
#12
  • Jan 21, 2026
  • #12
Hello , nice project ... any update... almost 2 years
 
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