Planning A Daily Driver Build. Need Some Advice...

BallzDeep38

New Member
Mar 26, 2011
6
0
2
I am looking to plan on getting a 64-68 coupe to make my semi-daily driver. This will have some restomod upgrades to it to help make it safer and more reliable (and some more power if it can be fit in there). My goal is to get a 300-350 FWHP 302/5.0 capable of 30 MPG on the highway (I commute 110 miles/day), T-5 trans, improved braking and steering, and some creatures comforts like a nice stereo. So, Im considering buying a used 5.0 mustang (1990-1995) to pirate the engine/computer/accessories, and trans from. The motor and trans will get a full rebuild. As far as the rest of the car, what else should I pull before I get rid of the remains? Can I use the disc brakes, as a pretty easy upgrade, or should I stick to a kit? Is the rear end worth keeping for this project? The car will be a street car with an occassional trip to the drag strip (maybe once a year, and would never see drag slicks, drag radials would be the stickiest tires I would run). Anyone have any advice here?
 
  • Sponsors(?)


rbohm

SN Certified Technician
Apr 12, 2002
6,600
529
204
61
tucson,az
start with chassis and suspension and brake upgrades. you want the chassis to be as stiff as possible, remember that the stiffer the chassis the less spring rate you need to get the handling you want. that means subframe connectors, torque boxes, etc.

as for the brakes, use a kit to put disc brakes on the front, and the larger F150 drums out back. this will give you the best braking for a daily driver for a reasonable cost.

when building your engine, you want to take a systems approach and select parts that compliment each other, IE cams, heads, intake, and exhaust should all be selected for the rpm range you are going to spend 80% of the time in. for the street that means 1000-5000 rpm.

the hard part is going to be getting the desired 30mpg, even with overdrive and EFI it will be tough. be prepared to accept more like 25-27mpg.
 

BallzDeep38

New Member
Mar 26, 2011
6
0
2
That makes it sound like buying the whole car is a waste then. Maybe Ill just look for a engine/trans/computer and go from there. Sub frame connectors are in the plans as well as new sway bars and bracing up front. Is there a reason you recommend larger drums, as opposed to discs in the rear?

As for the engine combo my plan is achieve my ideal highway rpm between 75-85 mph. So, my differential gear will most likely be changed to get me there. Im thinking something along the lines of a stock cam or maybe a slightly different cam to get me more torque at my cruising rpms, GT40p or AFR 165 heads, Cobra/GT40 intake. Hopefully something like this will get me into the 300-350 fwhp range and not hurt too bad in the mileage department.

What cruising rpm should I be targeting to maximize my mpg? 1600-2000? 2000-2400? 2400-2800?
My goal of 30 mpg is what I am targeting. If I were to fall short and only get 27, I wouldnt be crushed, especially since my 95 acura integra is getting me 28-29.
 

n8rfastback

Member
May 28, 2014
135
7
18
50
Keep cruising rpm as low as you can for best mileage. Right around 1600 is fine. You'll need a t5 with really low geared 5th, some of them are like a .6? I think, and if you keep the factory 8" with 2.80 gears you'll be in ok shape for mileage. I was getting exactly 20 mpg with my 302, 2.80 gears, and T5 with a .7 final gear, but its doggy off the line. I only have bolt ons and am easily way under 300 hp. Adding hp will only make the mileage better as long as you keep it efficient and keep the rpms down.
 

rbohm

SN Certified Technician
Apr 12, 2002
6,600
529
204
61
tucson,az
That makes it sound like buying the whole car is a waste then. Maybe Ill just look for a engine/trans/computer and go from there. Sub frame connectors are in the plans as well as new sway bars and bracing up front. Is there a reason you recommend larger drums, as opposed to discs in the rear?
the larger drums because it is easier to hook up the emergency brake cable, but if you want rear discs, go ahead and install them. if you shop around though the drums can be cheaper to buy than the disc brakes.

As for the engine combo my plan is achieve my ideal highway rpm between 75-85 mph. So, my differential gear will most likely be changed to get me there. Im thinking something along the lines of a stock cam or maybe a slightly different cam to get me more torque at my cruising rpms, GT40p or AFR 165 heads, Cobra/GT40 intake. Hopefully something like this will get me into the 300-350 fwhp range and not hurt too bad in the mileage department.
a mild aftermarket cam will get you closer to your goals than a stock cam will, especially with aftermarket heads. you dont want to go to wild though on the cam, again select one that operates best in the 1000-5000 rpm range.

What cruising rpm should I be targeting to maximize my mpg? 1600-2000? 2000-2400? 2400-2800?
My goal of 30 mpg is what I am targeting. If I were to fall short and only get 27, I wouldnt be crushed, especially since my 95 acura integra is getting me 28-29.
1600-2000 rpm is about where you are going to get your best fuel economy with a V8. so to figure out what rear gear you need, start with what tire you are going to use, and what overdrive ratio you have, and then play with the numbers.

the formulas you will use are;

for tire size section width x 2 x (aspect ratio/100) / 25.4 + wheel diameter. example;

(225 x 2 x (60/100) / 25.4) + 15= 25.62

for what gear you need;

(engine rpm x tire size) / (mph x 336)= rear gear ratio.

example;

(2386 x 25.62) / (65 x 336) = 2.80.

to figure out what rear gear you want with the overdrive just take the calculated final drive ratio and divide it by the overdrive ratio.

example;

2.80/.7od=4.00:1 rear gear.
 
Thread starter Similar threads Forum Replies Date
S My plan for a fun streetable 300 HP daily driver Classic Mustang Specific Tech 29
M Well scratch my plans SN95 V6 Mustang Tech 3
I 1984 Mustang - Big Plans The Welcome Wagon 5
darryl paarman Fox Planning on 5 lug swap -which axle ? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 11
CarMichael Angelo So,...you bought a dart block, and plans are for 750 hp.... 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 13
J Just picked up a manual 2005 GT convertible V8, plan to fix it up. 2005 - 2014 S-197 Mustang -General/Talk- 0
IIGood Starting to plan '03 GT shock/strut refresh...looking for suggestions 1996 - 2004 SN95 Mustang -General/Talk- 0
G Planning a mild engine rebuild, '65 A-code. Decent approach? 1965 - 1973 Classic Mustangs -General/Talk- 3
killer5.0 Paint and Body Plan to put the car on rotisserie next winter. Can i leave interior and glass in the car? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 6
K Here Is My Plan, Is This Good Or???? Fox 5.0 Mustang Tech 1
D Engine Please Look Over My Plans. Classic Mustang Specific Tech 6
J Planning To Change Power Steering Pump SN95 4.6L Mustang Tech 5
H Planning A Street Car Project 2015+ (S550) Mustang -General/Talk 3
Nathaniel Donnelly Audrey's Plan 1965 - 1973 Classic Mustangs -General/Talk- 2
0 Thoughts On Upgrade Plans SN95 V6 Mustang Tech 0
Murkstang New Here And Plan To Be Around For Awhile. The Welcome Wagon 3
B Progress Thread Update And Opinions On My Build Plan And Some Questions. 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 51
FiveOhSwap98 Planning On Doing A 4.6, Or 5.0 Swap! Need Tips :) 1996 - 2004 SN95 Mustang -General/Talk- 7
1 Alibi 2 Have A Plan & A Goal.. 2007 - 2014 Shelby GT500 Tech 0
mikestang63 Plan B- Hci Heads 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 29
Ant85 Deciding On Engine Plans 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 15
M Help Planning Re-build 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 0
zachsola Exhaust Crazy Plan For Dual Exhaust. Thoughts?? SN95 V6 Mustang Tech 4
DemonHorse89 Need A Little Help Planning My Engine Build From Someone Knowledgeable Please!! 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 34
Slater Future Plans 1965 - 1973 Classic Mustangs -General/Talk- 0
F Planning The Next Mods 1994 - 1995 Specific Tech 6
J Opinions On My Suspension Order Plan. 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 10
slivergt01 Planning To Buy A 14 V6 And Wanting To Get X Plan Pricing 2005 - 2014 S-197 Mustang -General/Talk- 2
Gearhead92 Engine Plans For A Dd Fox 5.0 Mustang Tech 11
ThatBear Progress Thread My 351 build plans put into action Fox 5.0 Mustang Tech 17
ThatBear My plans for a 351 swap Fox 5.0 Mustang Tech 78
MRaburn Mustangs Across America plans for 2014 driving event StangNet Site News 0
CornholiusTheGreat Drivetrain So I'm planning on building my tranny SN95 4.6L Mustang Tech 3
stangboy Building A 363 And Need To Know Parts To Upgrade From Orig 331 Plan 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 6
M Is It Worth To Pay For The Sync $75 Plan 2010 - 2014 Specific Tech 21
RLC Sub Box Plans? SN95 V6 Mustang Tech 10
Husky44 Forced Induction Planning Kenne Bell Install-what Else Will I Need? 1994 - 1995 Specific Tech 25
Z Transmission plans in order.. NOW FO DA POWA! SN95 4.6L Mustang Tech 5
D X Plan Purchasing 2005 - 2014 S-197 Mustang -General/Talk- 4
ronstang94 Planning My Rebuild 1994 - 1995 Specific Tech 13
brtnstrns Distant Future Kenne Bell Plans SN95 4.6L Mustang Tech 17
ACSPONY Need help planning my engine build Fox 5.0 Mustang Tech 9
Red35th X-Plan PIN 1996 - 2004 SN95 Mustang -General/Talk- 3
M My Carbecue Story and Your Help On My Recovery Plan Fox 5.0 Mustang Tech 2
DRB5 Plans for My 'Stang 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 28
H 2002 GT Planned mods 1996 - 2004 SN95 Mustang -General/Talk- 8
nate01gt Planning on getting another mustang! 2005 - 2009 Specific Tech 1
jaybertx X-Plan rules 2005 - 2014 S-197 Mustang -General/Talk- 6
I candy Shocks Plan A or B?? Fox 5.0 Mustang Tech 2
C Anyone have an X-Plan Pin or D-Plan Pin??????? Regional Forums and Event Information 0
Similar threads