Search found 5361 matches

by StrangeRanger
Fri Sep 26, 2014 7:52 am
Forum: Turbo, Supercharger, and Nitrous
Topic: Turbo Cam for a 200???
Replies: 10
Views: 1447

Re: Turbo Cam for a 200???

For a turbo specific cam:
Isky 321-TA .420/.390 lift, 260°/248° adv dur, 208°/194° @ .050, 114° LCA
by StrangeRanger
Wed Sep 24, 2014 7:37 am
Forum: 240-300 "Big Block" Six Performance
Topic: fast burn head?
Replies: 12
Views: 1195

Re: fast burn head?

MechRick wrote: The upper seems ok. Just add a 5.8L throttle body assy and go.


That's not as simple as it sounds. The linkage on the V-8 T/Bs is entirely different from the 4.9's. It can and has been done but count on some fabrication work
by StrangeRanger
Sun Sep 14, 2014 10:39 am
Forum: 240-300 "Big Block" Six Performance
Topic: dual alternator
Replies: 102
Views: 8501

Re: dual alternator

That's a lot of trouble just to make a dummy gauge out of what I have now. I'd rather upgrade the stock alternator to a less fire-prone 3G but stay within the power handling capabilities of the stock gauge. Best of both worlds. This has been covered previously in this thread. Long story short, I ju...
by StrangeRanger
Sat Sep 13, 2014 7:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: dual alternator
Replies: 102
Views: 8501

Re: dual alternator

The issue isn't the reading on the gauge being inaccurate. The increased current of a higher output alternator can overwhelm the stock wiring and gauge itself. If that happens things get smoky. Trace the wire from the ammeter back to its source, probably somewhere on the alternator harness. Run the...
by StrangeRanger
Sat Sep 13, 2014 7:58 am
Forum: 240-300 "Big Block" Six Performance
Topic: dual alternator
Replies: 102
Views: 8501

Re: dual alternator

Wire a pot in parallel to the stock ammeter and use it to tune the reading to match % of ammeter output?
by StrangeRanger
Wed Sep 03, 2014 5:39 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Highway rpm to figure new gears
Replies: 15
Views: 1253

Re: Highway rpm to figure new gears

With only 4 widely spaced gears you're going to be making some compromises in gearing no matter what you do. At what RPM will your torque peak? That is the most important number in putting together a drivetrain.
by StrangeRanger
Wed Aug 06, 2014 7:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Would you suggest Chevy 1.75 rockers?
Replies: 8
Views: 1094

Re: Would you suggest Chevy 1.75 rockers?

It's actually about 9% more lift not 5%. My point, somewhat badly stated, was that the cam manufacturer designed the can to provide a certain performance level over a certain RPM range; using different rocker ratios will change that and possibly not for the better. More important, as you have pointe...
by StrangeRanger
Wed Aug 06, 2014 6:34 am
Forum: 240-300 "Big Block" Six Performance
Topic: Would you suggest Chevy 1.75 rockers?
Replies: 8
Views: 1094

Re: Would you suggest Chevy 1.75 rockers?

You already have .446/.450 lift at the valve with the stock 1.61: rocker ratio. Do you really see the .485/.490 you'd get with the C***y rockers as beneficial? Generally, the high lift rockers are used instead of a higher lift can rather than being used in conjunction with one. I'd say use the cam w...
by StrangeRanger
Thu Jul 31, 2014 4:14 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Gotta go 25k miles without turning a wrench, prep work?
Replies: 23
Views: 7146

Re: Gotta go 25k miles without turning a wrench, prep work?

The short answer on the knock sensor is: nobody knows Ford added the knock sensor at about the same time that they went to phenolic gears so there was an obvious question as to whether they were related. However that was about the same time that they started marketing trucks to people who had never ...
by StrangeRanger
Thu Jul 31, 2014 1:53 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Gotta go 25k miles without turning a wrench, prep work?
Replies: 23
Views: 7146

Re: Gotta go 25k miles without turning a wrench, prep work?

Mechanical issues may be the least of your worries: http://travel.state.gov/content/passports/english/alertswarnings/mexico-travel-warning.html http://travel.state.gov/content/passports/english/alertswarnings/honduras-travel-warning.html http://travel.state.gov/content/passports/english/alertswarnin...
by StrangeRanger
Sat Jul 26, 2014 7:42 am
Forum: 240-300 "Big Block" Six Performance
Topic: dual alternator
Replies: 102
Views: 8501

Re: dual alternator

Why not just buy a smallish Honda generator and be done with it?
No modifications to the truck required
No inverter required
You can use it other places for other purposes
It will outlive a 35 year old truck
by StrangeRanger
Fri Jul 25, 2014 9:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: wondering about new exhaust setup
Replies: 13
Views: 1045

Re: wondering about new exhaust setup

Your math is off. Cutting the diameter in half reduces the cross sectional area by a factor of 4 and raises the flow velocity also by a factor of 4 and increases the backpressure by a factor of 16. So with half the flow you would end up with twice the velocity at 8 times the backpressure in each pip...
by StrangeRanger
Thu Jul 24, 2014 6:29 am
Forum: 240-300 "Big Block" Six Performance
Topic: Replacement Fuel Injectors
Replies: 14
Views: 3778

Re: Replacement Fuel Injectors

FYI they're 14#/hr not 12#/hr and the tops are grey.
by StrangeRanger
Mon Jul 14, 2014 5:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Borg Warner Overdrive
Replies: 31
Views: 7130

Re: Borg Warner Overdrive

F-250 Restorer wrote:... and all that adds up to make more sense for me.


Until you have to deal with the annular slave cylinder
by StrangeRanger
Thu Jul 03, 2014 10:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Dyno testing data thread
Replies: 8
Views: 768

Re: Dyno testing data thread

I'm very impressed by those BSFC and VE numbers.
87% VE is something on the order of phenomenal with that length of stroke
BSFC numbers lower than .40 are impressive at WOT on any engine
by StrangeRanger
Mon Jun 30, 2014 8:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: T18/T19 Transmission Questions
Replies: 7
Views: 1267

Re: T18/T19 Transmission Questions

Not the Diesel one. The input shafts may not match (I have no info on that but I strongly suspect not) and the ratios for the gas engine version are just about perfect for your truck
by StrangeRanger
Mon Jun 30, 2014 7:48 am
Forum: 240-300 "Big Block" Six Performance
Topic: T18/T19 Transmission Questions
Replies: 7
Views: 1267

Re: T18/T19 Transmission Questions

The T18 cannot be converted to a T19 I don't think you'll be happy with the T18. It does not solve your problem. 1st gear in the T18 is a granny (6.32:1) and the 2nd gear (3.09:1) is pretty close to what you have now for 1st (2.99:1). The ratios in a 2WD T19 ( 4.02 / 2.41 / 1.41 / 1.00) are much mor...
by StrangeRanger
Sun Jun 29, 2014 7:07 am
Forum: 240-300 "Big Block" Six Performance
Topic: Roller rockers for the EFI 300
Replies: 29
Views: 4555

Re: Roller rockers for the EFI 300

I was just on the product page and it says the valve cover is carb only. Oh well ... That's because as I stated, the taller valve cover may require a minor re-work of your T/B mounting bracket. It may also require a spacer between the upper and lower intake manifolds. The spacer could easily be mac...
by StrangeRanger
Sat Jun 28, 2014 6:07 am
Forum: 240-300 "Big Block" Six Performance
Topic: Ring and Pinion Change Help
Replies: 9
Views: 731

Re: Ring and Pinion Change Help

That link has expired but a 2WD Ford version of the T19 should be a direct bolt in for your 3 speed. You may not even need a different driveshaft; I'm fairly certain that Ford tailored their tailshaft lengths to make everything fit in the same hole. The whole clutch, linkage and BH should be a drop-...
by StrangeRanger
Fri Jun 27, 2014 7:30 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Ring and Pinion Change Help
Replies: 9
Views: 731

Re: Ring and Pinion Change Help

You'd be way better off leaving the 2.75 in it and replacing the 3 speed with a T-19
by StrangeRanger
Wed Jun 25, 2014 9:41 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Cam swap ... "must have" parts?
Replies: 15
Views: 882

Re: Cam swap ... "must have" parts?

You absolutely do NOT want the Rhodes-type high bleed rate lifters. They are a band-aid designed to make 290+° race cams somewhat drivable on the street. That is not your application. With as mild cam like yours there is no point in using performance lifters of any sort. As to brand, whatever OEM eq...
by StrangeRanger
Wed Jun 25, 2014 5:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: The heads boss, The heads !
Replies: 35
Views: 4751

Re: The heads boss, The heads !

The ports in the stock heads are designed to give relatively high volumetric efficiencies at low RPM. If you fit a head with bigger ports, you will gain efficiency at higher RPM and therefore more HP but you may well lose VE at lower RPM thus reducing the utility of the 300 in a truck. It all depend...
by StrangeRanger
Wed Jun 25, 2014 5:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Cam swap ... "must have" parts?
Replies: 15
Views: 882

Re: Cam swap ... "must have" parts?

Harte3: Many thanks. Do I need custom pushrods for that? You may or may not. The machining involved in truing the head and block and modifying the pedestals for studs and roller rockers (and yes you will need guide plates with those rockers) will alter the length of pushrod required. The stock leng...
by StrangeRanger
Wed Jun 25, 2014 12:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Cam swap ... "must have" parts?
Replies: 15
Views: 882

Re: Cam swap ... "must have" parts?

"ROLLER LIFTERS" WAS A BRAIN FART; I'm not responsible for anything I post before my second cup of coffee.
Should have read "roller rockers"
by StrangeRanger
Wed Jun 25, 2014 6:10 am
Forum: 240-300 "Big Block" Six Performance
Topic: Cam swap ... "must have" parts?
Replies: 15
Views: 882

Re: Cam swap ... "must have" parts?

The cam and crank gears are a matched set, both need to be metal, a steel crank/aluminum cam set is quieter and has less inertia to overcome than an all steel set. The Cloyes adjustable set allows you to play with cam advance/retard. You need springs that match your lift, buy the ones that your cam ...
by StrangeRanger
Fri Jun 20, 2014 3:33 pm
Forum: 240-300 "Big Block" Six Performance
Topic: After pulling the EGR ...
Replies: 25
Views: 1716

Re: After pulling the EGR ...

You may never see it on a dyno because the EGR system does not operate at WOT. It only works in "warm cruise" which is where most engines spend 90+% of their lives. "Removing the EGR is against the law may" not get much of a response but "A properly functioning EGR improves ...
by StrangeRanger
Fri Jun 20, 2014 7:47 am
Forum: 240-300 "Big Block" Six Performance
Topic: EGT sensor location for the big six
Replies: 5
Views: 606

Re: EGT sensor location for the big six

Mount it horizontally in the first elbow where the pipe turns down and pointed straight at the exhaust port.

While you're at it you might want to weld bungs into both #4 and #5, try the sensor in both and compare the readings
by StrangeRanger
Thu Jun 19, 2014 10:36 pm
Forum: 240-300 "Big Block" Six Performance
Topic: EGT sensor location for the big six
Replies: 5
Views: 606

Re: EGT sensor location for the big six

The hottest hole is going to be towards the center rear of the engine, either 4 or possibly 5. 1 and 6 are on the ends so they will be exposed to ambient temps on 3 sides. 1, 2 and 3 are in the front half of the engine and will get more airflow therefore more cooling. The water flow is going to cool...
by StrangeRanger
Tue Jun 17, 2014 4:29 pm
Forum: Brakes, Wheels, and Tires
Topic: What wheels will fit and clear on 1980 f100??
Replies: 6
Views: 1399

Re: What wheels will fit and clear on 1980 f100??

That will give you the present backspace measurement. With that and the wheel width (measured bead seat to bead seat not outside to outside) you will have a starting place. You still need to mount the wheel and check clearances at full steering lock in both directions. That will tell you the rest of...
by StrangeRanger
Mon Jun 16, 2014 10:00 pm
Forum: Brakes, Wheels, and Tires
Topic: What wheels will fit and clear on 1980 f100??
Replies: 6
Views: 1399

Re: What wheels will fit and clear on 1980 f100??

Those sound like they should fit but I really think you should start by measuring your existing backspacing and existing clearances.
by StrangeRanger
Mon Jun 16, 2014 9:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: exhaust manifold hardware questions
Replies: 15
Views: 1174

Re: exhaust manifold hardware questions

Gr. 8 is not mandatory, it may not even be preferable. Gr. 8 hardware is very strong but can be quite brittle. Gr. 5 is only slightly less strong but way more malleable. Given the amount of contraction and expansion in the manifold, block and studs and the fact that carbon steel, stainless steel and...
by StrangeRanger
Mon Jun 16, 2014 12:20 am
Forum: 240-300 "Big Block" Six Performance
Topic: exhaust manifold hardware questions
Replies: 15
Views: 1174

Re: exhaust manifold hardware questions

Since he's already made up his mind as to what he was going to do, I wonder why he even bothered to ask. :roll:
by StrangeRanger
Sun Jun 15, 2014 10:08 pm
Forum: Brakes, Wheels, and Tires
Topic: What wheels will fit and clear on 1980 f100??
Replies: 6
Views: 1399

Re: What wheels will fit and clear on 1980 f100??

The F100 has the 5 on 4.5 pattern rather than 5 on 5.5? Don't know for a fact but that sounds like way too much backspacing; I'm guessing stock is in the 4-4.5" range. What do your original wheels measure? Bolt them up and turn the steering from full lock to full lock with the weight of the tru...
by StrangeRanger
Sat Jun 14, 2014 9:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: exhaust manifold hardware questions
Replies: 15
Views: 1174

Re: exhaust manifold hardware questions

Typically threaded rod has the cheapest metallurgy possible, no heat treating whatsoever and minimal strength when compared to real fasteners.

Are you hanging Venetian blinds or engine manifolds?
by StrangeRanger
Sat Jun 14, 2014 10:08 am
Forum: Brakes, Wheels, and Tires
Topic: wheels
Replies: 4
Views: 1366

Re: wheels

IIRC the later trucks have something between 1/2" positive and zero offset wheels. (I've changed mine to 16 x 8 wheels with zero offset and they fit perfectly).

This will explain offset vs. backspacing
http://www.tirerack.com/wheels/tech/tec ... techid=101
by StrangeRanger
Fri Jun 13, 2014 4:46 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Eaton Posi or Detroit Truetrac?
Replies: 6
Views: 934

Re: Eaton Posi or Detroit Truetrac?

One thing to be aware of: If you rock crawl or the like do not use a True-Trac in the rear. They work beautifully as long as both wheels are in contact with the ground. If you hang either one in the air, it acts exactly like an open diff and puts 100% of the torque to the unladen wheel. That may be ...
by StrangeRanger
Fri Jun 13, 2014 11:47 am
Forum: 240-300 "Big Block" Six Performance
Topic: exhaust manifold hardware questions
Replies: 15
Views: 1174

Re: exhaust manifold hardware questions

Paint sludge? Seriously? :roll: Use a gasket or if you prefer the high-temperature (orange) silicone sealant but don't waste your time and effort with redneck remedies :bang: As for SS vs. carbon steel on the studs, if you use SS you have to use high temp never-seize or it will never come apart agai...
by StrangeRanger
Mon Jun 09, 2014 2:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Comp 268 cam and chevy inline rockers together peacefully???
Replies: 9
Views: 777

Re: Comp 268 cam and chevy inline rockers together peacefull

Your valve lift with the Chevy rockers would be about .495. There aren't many cams with comparable lifts out there and at you duration, the ramps are going to be pretty steep. If you're going to try this combination you'd probably want roller rockers to reduce the side loading. I've always considere...
by StrangeRanger
Sat Jun 07, 2014 6:49 am
Forum: 240-300 "Big Block" Six Performance
Topic: Injectors for 1996?
Replies: 10
Views: 794

Re: Injectors for 1996?

Those numbers are flywheel HP A 96 has a single high pressure pump in each tank The EFI system will call for as much fuel as it needs, that could be 80%, 90% or 100% and the injectors will attempt to keep up. When the EFI system asks for 110% bad things can happen. Running the injectors harder than ...
by StrangeRanger
Fri Jun 06, 2014 9:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Injectors for 1996?
Replies: 10
Views: 794

Re: Injectors for 1996?

If you plug 17lbs/hr (which is what the 14 lb injectors flow at the higher pressure of the 300's system) into that calculator, it gives an output of 163 HP @ 80% duty cycle, just about perfect for a stock 300. They will also work with a mildly modified 300 if the mods are selected to increase power ...
by StrangeRanger
Fri Jun 06, 2014 6:28 am
Forum: 240-300 "Big Block" Six Performance
Topic: Injectors for 1996?
Replies: 10
Views: 794

Re: Injectors for 1996?

The stock injectors are rated for 14 lbs/min @ 39 PSI not 12.
At the 55-58 PSI in the 300, they flow about 17lbs/min
by StrangeRanger
Mon May 19, 2014 6:57 am
Forum: 240-300 "Big Block" Six Performance
Topic: Exhaust back pressure clarification
Replies: 17
Views: 1349

Re: Exhaust back pressure clarification

As you reduce the diameter of the tube, the velocity increases by a factor of dia^2 but the backpressure increases by a factor of dia^4. Gains in velocity can be offset pretty quickly by increases in backpressure. I have never found an equation or set of equations that provide a method for sizing th...
by StrangeRanger
Sun May 18, 2014 10:22 am
Forum: 240-300 "Big Block" Six Performance
Topic: 1980 F-100 3 speed to 5 speed questions.
Replies: 29
Views: 2503

Re: 1980 F-100 3 speed to 5 speed questions.

From the description the seller gives, it would appear so.
by StrangeRanger
Sun May 18, 2014 6:18 am
Forum: 240-300 "Big Block" Six Performance
Topic: 1980 F-100 3 speed to 5 speed questions.
Replies: 29
Views: 2503

Re: 1980 F-100 3 speed to 5 speed questions.

With a 2.75 final drive, forget about an OD tranny, you want a 1:1 top gear
Look for a T-19 which is very similar to a T-18 except that it has a synchronized 1st gear.
by StrangeRanger
Fri May 16, 2014 4:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1980 F-100 3 speed to 5 speed questions.
Replies: 29
Views: 2503

Re: 1980 F-100 3 speed to 5 speed questions.

The 3.03 three speed, 4 speed toploader, T170 3+OD, T-18, T-19, NP435 and Tremec 3550/TKO all mount to the bellhousing with the same pilot diameter and the same bolt pattern. The T-5 is different. So a T-5 will not fit your bellhousing without an adaptor or some machining work and your clutch linkag...
by StrangeRanger
Fri May 16, 2014 12:31 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1980 F-100 3 speed to 5 speed questions.
Replies: 29
Views: 2503

Re: 1980 F-100 3 speed to 5 speed questions.

The T-5 is not an overly robust transmission. It does not bolt up to your bellhousing but can be adapted if you have access to a machine shop A conventional T-5 bellhousing from a Fox body is set up for a cable clutch not a mechanical linkage. IIRC the GM S-10 version puts the shifter closest to whe...
by StrangeRanger
Thu May 15, 2014 8:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1980 F-100 3 speed to 5 speed questions.
Replies: 29
Views: 2503

Re: 1980 F-100 3 speed to 5 speed questions.

Everybody is overlooking the Tremec 3550. It's an aftermarket tranny and new ones weren't cheap but a lot of them have been replaced with the newer, stronger TKOs. Used ones can sometimes be had at a reasonable price. Ratios are very nearly the same as a T-5 but it's about 25% stronger. Most importa...
by StrangeRanger
Mon May 12, 2014 7:15 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Transmission swap
Replies: 23
Views: 1101

Re: Transmission swap

But you cannot use the SBF flexplate with a 300. The 300 requires one with a zero imbalance
by StrangeRanger
Tue May 06, 2014 7:36 am
Forum: 240-300 "Big Block" Six Performance
Topic: Change gearing or differential?
Replies: 9
Views: 723

Re: Change gearing or differential?

The Mazdog tranny is not a wise swap.
It is way weaker than the near-bulletproof T18, the reverse gearing is insanely high and you have to convert to Ford's idiotic annular throwout assembly. Stick with the T18 and re-gear the diff.

Go to advanced search