Search found 799 matches

by motzingg
Wed Oct 07, 2015 11:57 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240/300 turbo in a 1979 RX7
Replies: 55
Views: 6561

Re: 240/300 turbo in a 1979 RX7

Yeah great idea, i've had the same one myself! We've discussed the 'turbo 300 maverick' on here before and he might be running stock cast crank and rods but he is almost certainly running the hypereutectic pistons from the 95/96 truck, and ARP rod bolts, and most likely has polished and shot peened ...
by motzingg
Mon Sep 28, 2015 2:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Timelines for Carbs, EFI and O2 sensors?
Replies: 11
Views: 1550

Re: Timelines for Carbs, EFI and O2 sensors?

https://books.google.com/books?id=EgEAAAAAMBAJ&pg=PA78&lpg=PA78&dq=ford+vv+carburetor&source=bl&ots=IZxtofYaz-&sig=6cWmjjuZ8Pc-LmK5fwZUIQVfGts&hl=en&sa=X&ved=0CFAQ6AEwCWoVChMIk_Gw3KmayAIVzgeSCh1wRQQ9#v=onepage&q&f=false Here's a good article, carb looks p...
by motzingg
Mon Sep 28, 2015 2:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Timelines for Carbs, EFI and O2 sensors?
Replies: 11
Views: 1550

Re: Timelines for Carbs, EFI and O2 sensors?

yeah, you woudn't even need the megasquirt, any small microcontroller would probably do it. arduino is just one that happens to be very easy to work with. for an 'all out economy' effort, carbs have some advantages in terms of manifold heating and more even fuel distrbution than EFI. The VV carbs as...
by motzingg
Mon Sep 28, 2015 2:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Initial timing for Isky 331-M?
Replies: 8
Views: 1409

Re: Initial timing for Isky 331-M?

yeah the other thing i was thinking of, was that if the knock sensor is picking up imperceptible knock events it might throw it into some kind of limp home mode which retards timing even more than stock. You could in theory never even know, you'd just have terrible gas mileage.
by motzingg
Mon Sep 28, 2015 11:46 am
Forum: 240-300 "Big Block" Six Performance
Topic: Timelines for Carbs, EFI and O2 sensors?
Replies: 11
Views: 1550

Re: Timelines for Carbs, EFI and O2 sensors?

PWM solenoid valve I stand corrected, thanks! Never really knew what was going on in there, VW and Honda were using PWM, I assumed it was the same. Now that i know more about stuff in general i've wanted to grab one of those out of a junkyard and dig around just to see what makes it tick. In theory...
by motzingg
Mon Sep 28, 2015 11:32 am
Forum: 240-300 "Big Block" Six Performance
Topic: Initial timing for Isky 331-M?
Replies: 8
Views: 1409

Re: Initial timing for Isky 331-M?

Given that the computer is making its own decisions regarding timing, probably best to set it 'by the book' using a piston stop to find TDC and accurately marking the flywheel. The computer might do weird things if you set base by vacuum.
by motzingg
Mon Sep 28, 2015 11:30 am
Forum: 240-300 "Big Block" Six Performance
Topic: APR ROD BOLTS
Replies: 17
Views: 1684

Re: APR ROD BOLTS

^ well, that would obviously depend on the geometry and metallurgic properties of the rod, if you are taking it beyond its elastic limit or far enough for it to creep, you'll get plastic deformation. i bet the formula one rods are quite a bit more rigid relative to the top fuel one, after a 3 hour r...
by motzingg
Fri Sep 25, 2015 5:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Timelines for Carbs, EFI and O2 sensors?
Replies: 11
Views: 1550

Re: Timelines for Carbs, EFI and O2 sensors?

The short answer is, its complicated. I don't know the system that was on the ford 6 but it was probably pretty similar to what came on my '84 ranger, the carb had an enrichment circuit that was controlled by a PWM solenoid valve, kindof like a proportional electrically controlled 'power valve' ... ...
by motzingg
Fri Sep 25, 2015 5:19 pm
Forum: 240-300 "Big Block" Six Performance
Topic: APR ROD BOLTS
Replies: 17
Views: 1684

Re: APR ROD BOLTS

I'm convinced, it cant be too expensive- when i've seen them doing it in engine build videos it looks like it only takes a few minutes per rod. If you can take a stock (essentially free) connecting rod and put $20 worth of ARP hardware in it, and spend another 20 or so on having it re-sized, and get...
by motzingg
Fri Sep 25, 2015 12:37 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Re ring and bearing 200k engine?
Replies: 5
Views: 1059

Re: Re ring and bearing 200k engine?

The rings wont break in without a hone, at the bare minimum. So you're stuck doing that, it cost me 80 bucks to get 6 holes honed and the block cleaned, should be cheaper anywhere else in the world that isn't Austin, TX. Last time i had a 4 cylinder done i think it was 30 bucks, honed and cleaned. O...
by motzingg
Fri Sep 25, 2015 11:17 am
Forum: 240-300 "Big Block" Six Performance
Topic: APR ROD BOLTS
Replies: 17
Views: 1684

Re: APR ROD BOLTS

Thanks for the reply. Enlightening as usual.

Does that mean going to a +.010 bearing or do they grind the mating face off and cut it to +.000?

Does it automatically require going over(under)size on the crank or can you resize the rod without affecting the crank journal?
by motzingg
Thu Sep 24, 2015 6:49 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Water/Methanol injection location?
Replies: 5
Views: 877

Re: Water/Methanol injection location?

But with all those heat exchangers, i'm sure it will do an excellent job of heating your house this winter!
by motzingg
Thu Sep 24, 2015 6:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: A/C condenser
Replies: 6
Views: 1145

Re: A/C condenser

Having done quite a bit of research into the same in my '68, my conclusion has been 'the biggest one you can comfortably fit'

for my radiator that means 18x20 ish is about the best i can do unless i go to a bigger radiator, modify the core support, etc.
by motzingg
Thu Sep 24, 2015 6:36 pm
Forum: 240-300 "Big Block" Six Performance
Topic: APR ROD BOLTS
Replies: 17
Views: 1684

Re: APR ROD BOLTS

yeah, I didn't know that either.

i knew if you went from bolts to studs you had to, but i thought you could get away with it on rods where you don't screw into the rod itself.

at the very least this post saved me a big headache! thanks.
by motzingg
Wed Sep 23, 2015 2:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1966 Ford Falcon futura BIG SIX install questions
Replies: 3
Views: 961

Re: 1966 Ford Falcon futura BIG SIX install questions

The T-18 and NP-435 which may be what you are referring to by 'truck four speeds' are going to have the granny low, aside from that they are similar to the ranges in the Ford 3.03 aka 'three on the tree' they probably wouldn't be bad, per se, especially with a tall rear end ratio, but they probably ...
by motzingg
Tue Sep 22, 2015 6:09 pm
Forum: Orphan Inlines
Topic: 1984 Ford 2.3L powered Bronco II
Replies: 150
Views: 33730

Re: 1984 Ford 2.3L powered Bronco II

My own results were consistent with that, my first ranger was the '84. It had a '78 pinto motor in it with what i think was a 2100 carb. It had the 4 speed (4x4) and would do pretty decent considering it had big tires, 20 mpg or so, but it could hold an honest 85 on the highway in top gear, maybe ev...
by motzingg
Tue Sep 22, 2015 5:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Seriously thinking of propane...
Replies: 22
Views: 2480

Re: Seriously thinking of propane...

They need to read this book: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCIQFjABahUKEwjfr9Lo0YjIAhXDth4KHRxZA0I&url=http%3A%2F%2Fwww.amazon.com%2FTo-Engineer-Is-Human-Successful%2Fdp%2F0679734163&usg=AFQjCNGdZXknXjH1kL...
by motzingg
Tue Sep 22, 2015 10:47 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 in a model t
Replies: 146
Views: 32962

Re: 300 in a model t

Hello everyone, Are the 1.7:1 BBC roller rockers a direct bolt on like the L6 250 chebby? thanks. No, they will need the stud pedestals cast in the head machined down for the proper geometry and while you're at it, it makes sense to tap them out to a standard sized 3/8 stud. I don't know if the dim...
by motzingg
Mon Sep 21, 2015 3:29 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: 66sprint6's Boosted Inline still alive and doin well!
Replies: 131
Views: 19889

Re: 66sprint6's Boosted Inline still alive and doin well!

ps: can't wait to see this header!!
by motzingg
Mon Sep 21, 2015 3:04 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: 66sprint6's Boosted Inline still alive and doin well!
Replies: 131
Views: 19889

Re: 66sprint6's Boosted Inline still alive and doin well!

You might want to drill the hole bigger and put a grommet in it, on the cable bracket running along the back of your engine. Chances pretty good it will rub through the vinyl coating on the cable and let corrosion in.
by motzingg
Mon Sep 21, 2015 1:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: New engine, initial timing settings
Replies: 9
Views: 1430

Re: New engine, initial timing settings

I usually static advance them about 10 degrees from the spec before starting. For some reason, the static setting will be retarded with the engine running. I'm not sure what causes this. I've just noticed this on just about every engine I've rebuilt over the last 30 or so years. Once you get throug...
by motzingg
Mon Sep 21, 2015 11:16 am
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

I, for one, would be willing to spend a lot more money for a 'high port' version, i don't know if i'd be interested in paying what i'm sure will have to be a fairly high price for one like the classic inlines small six, with only moderate improvements.
by motzingg
Fri Sep 18, 2015 11:54 am
Forum: Orphan Inlines
Topic: 1984 Ford 2.3L powered Bronco II
Replies: 150
Views: 33730

Re: 1984 Ford 2.3L powered Bronco II

Yeah i'm thinking i'll go with the AEM one http://www.enjukuracing.com/products/aem-wideband-uego-gauge-digital-air-fuel-30-4110.html?gclid=CjwKEAjw7O6vBRDpi7O-8OWSkwESJACNFsgx57g-me8buhNmxjn_Cp0SXEUCMrP0phOvIbOwPV9FbBoCs3zw_wcB I don't recognize that brand you've got, was it a cheap one? hows it wo...
by motzingg
Fri Sep 18, 2015 11:50 am
Forum: Turbo, Supercharger, and Nitrous
Topic: 95 F150 Turbo 300
Replies: 114
Views: 28701

Re: 95 F150 Turbo 300

:hmmm: or you could pack it full of wheel bearing grease then use a close fitting rod and hammer and hydolically push it out! :nod: yeah someone, maybe you, posted that suggestion right after i posted about my struggles... i'll remember that for next time. I was just mocking up my turbo last night,...
by motzingg
Fri Sep 18, 2015 11:20 am
Forum: 240-300 "Big Block" Six Performance
Topic: Carter yf
Replies: 7
Views: 1476

Re: Carter yf

i think if you take manifold 'A' and cut off runners 1, 5, 6 and take manifold 'b' and cut off runners 1,2, and 6, you could make a pretty sweet setup.
by motzingg
Thu Sep 17, 2015 6:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

Yeah wow, likewise if you need a cad jockey to turn it into solidworks, i could help with that. I was thinking about silicone casting the port and bowl of my EFI head to digitize for CNC porting, but a print would be marvellous!
by motzingg
Thu Sep 17, 2015 6:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Seriously thinking of propane...
Replies: 22
Views: 2480

Re: Seriously thinking of propane...

Well, if you ever need to re use a propane tank, just unscrew the valve, after its empty of course. Its just in there with a 3/4" NPT or something to that effect. I've cut them up and used them for all sorts of things, good for auxillary air compressor tanks too, just keep them below 150. I thi...
by motzingg
Thu Sep 17, 2015 11:59 am
Forum: 240-300 "Big Block" Six Performance
Topic: Seriously thinking of propane...
Replies: 22
Views: 2480

Re: Seriously thinking of propane...

The wear thing is interesting, i wonder if on a non-optimized engine it is being caused by the slower frame front causing a more gradual rise in pressure in the cylinders, rather than the gasoline lighting off more quickly. You would certainly see more even fuel distribution and mixing and all that,...
by motzingg
Thu Sep 17, 2015 11:11 am
Forum: Orphan Inlines
Topic: 1984 Ford 2.3L powered Bronco II
Replies: 150
Views: 33730

Re: 1984 Ford 2.3L powered Bronco II

Nice work, I keep forgetting to check back on this thread.

If you can, do us a favor and post up all your jets and stuff once you get it dialed. For future reference I might want to build one of these someday but have no idea how to tune webers, they seem kinda mysterious to me.
by motzingg
Wed Sep 16, 2015 6:18 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: 95 F150 Turbo 300
Replies: 114
Views: 28701

Re: 95 F150 Turbo 300

^ Yeah... i went through that as well. Spent a good 3-4 hours trying to cut it out, cold chisel it, cave it in. Finally gave up and welded a nut in there, screwed the bolt through the nut, and kept turning until the bolt bottomed out and pushed out the bearing. Nothing like wasting the entire time a...
by motzingg
Wed Sep 16, 2015 6:15 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Building a 300 for truck pulling.
Replies: 53
Views: 7948

Re: Building a 300 for truck pulling.

WOWOWOW that is awesome, Truck sounds awesome loaded down and spinning, plus that is one of the most brutally destroyed pumpkins i've ever seen.

Kudos on you for managing to drag the engine down, obviously your traction setup is pretty well sorted.
by motzingg
Wed Sep 16, 2015 6:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Cam selection for 4.9L EFI
Replies: 4
Views: 1501

Re: Cam selection for 4.9L EFI

If you install an index-able timing gear, or a stock-replacement cam with neutral timing, you can set your timing back to 0. Stock on the EFI motors is 5 degrees retarded for emissions reasons, which leads to an increase in torque and a drop in power (theoretically) i'm not sure how much difference ...
by motzingg
Wed Sep 16, 2015 5:58 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Seriously thinking of propane...
Replies: 22
Views: 2480

Re: Seriously thinking of propane...

Resources for refueling for propane are pretty limited as well. Even here in Texas. Yeah I don't agree with this 100% one website is reporting 666 LPG stations in texas, with reported prices around $3 a gallon, although out of date. http://www.altfuelprices.com/stations/LPG/ BUT most places that se...
by motzingg
Wed Sep 16, 2015 5:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

yeah i was just thinking about it the other day... get anywhere with that?
by motzingg
Wed Sep 16, 2015 4:07 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

I've learned everything I know from the guys on this forum. I can't even imagine what it was like before the internet, going to swap meets, races, hanging out in the pits trying to figure out who was making what. So much stuff has been made in garages for a limited time and never made again, long lo...
by motzingg
Mon Sep 14, 2015 6:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Seriously thinking of propane...
Replies: 22
Views: 2480

Re: Seriously thinking of propane...

The propane prices seem more volatile state-to-state. I'd make the decision based on how often you plan to travel long distances. The setup i was looking at installing would use 3-4 45(43.5) pound propane tanks, the forklift ones, which would be easy to throw an extra tank or two in the bed if you p...
by motzingg
Mon Sep 14, 2015 6:05 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

what about making it capable of using the poly inserts from cranes guide plates Yeah i looked at that, those do travel in the slots, now that i think of it i cant remember why i decided that was a bad idea... hmmm. Maybe something i read say the poly ones wore out? I went through all this before bu...
by motzingg
Fri Sep 11, 2015 12:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Australia intake manifold for 300
Replies: 9
Views: 1798

Re: Australia intake manifold for 300

I am pleased and excited to see that there's still an active aftermarket for our beloved engines I haven't posted anything yet because i'm still working on it, but i've got a couple tasty projects in the works as well. I think the diversity of the 'rat rod' movement is going to provide more opportu...
by motzingg
Thu Sep 10, 2015 1:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Australia intake manifold for 300
Replies: 9
Views: 1798

Re: Australia intake manifold for 300

^ yeah that is crazy, I didn't even know australia had got any big 6's.
by motzingg
Thu Sep 10, 2015 12:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 exhaust header question
Replies: 8
Views: 1787

Re: 300 exhaust header question

I have built headers by measuring the perimeter of the rectangular exhaust port hole, converting that length into a perimeter of a circle, and buying the nearest diameter under that size. make a mandrel, which can be nearly anything from a small rod fit to the radius of the square, all the way up to...
by motzingg
Thu Sep 10, 2015 12:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Offenhauser heat plate
Replies: 20
Views: 3209

Re: Offenhauser heat plate

The tap will be much cheaper than buying all those fittings!!!

You could also weld nipples on there.
by motzingg
Thu Sep 10, 2015 10:37 am
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

Yeah i looked into the guide plate thing and decided it was too risky, i don't know enough about the metallurgy. It looks like the commercially available ones are stampings which could imply some level of cold work around the wearing edge. Waterjet of course would just be an abrasive cut, and laser ...
by motzingg
Wed Sep 09, 2015 2:55 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Stevens HD Exhaust Manifold/Port Alignment
Replies: 4
Views: 1464

Re: Stevens HD Exhaust Manifold/Port Alignment

yeah knowing what to look for, i can see that clearly now. the stock manifolds are on an angle, i assume to keep fuel puddling in the runners and to keep the carb flange mounting level. The ports aren't at a right angle and the carb flange isn't parellel to the heat riser plate. and the studs holdin...
by motzingg
Wed Sep 09, 2015 2:46 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

.... guide plates for a solid roller cam. Hey Mr CNCdude, what about the roller rockers that are self-aligning, with a bar/gusset type arrangement? The guide plate seems kindof cave-man to me, i would think it would eventually have some sort of wear or issues with friction? Seems like the SBC motor...
by motzingg
Tue Sep 08, 2015 6:08 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Coolant flow direction 4.9 300?
Replies: 3
Views: 958

Re: Coolant flow direction 4.9 300?

woah i've had that wrong this whole time!? damn.


nice scoots mr hooligan!
by motzingg
Tue Sep 08, 2015 6:01 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Stevens HD Exhaust Manifold/Port Alignment
Replies: 4
Views: 1464

Re: Stevens HD Exhaust Manifold/Port Alignment

I have nothing to contribute, but that is a really cool technique for checking the ports quickly and i will be copying it.

You should lay the gasket on there and see what lines up and where. Are the ports shifted down? do the bolt holes come together? It could just be the heat riser that is off.
by motzingg
Tue Sep 08, 2015 5:59 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

The guide slot pushrod holes went through '84, the casting for the bolt-down/pedestal mount rockers is '85. If you want a carb head with pedestal rockers, your only choice is 85 (which is what i have) but i don't think the pedestal rockers are very good, it was the only thing on my engine showing si...
by motzingg
Fri Sep 04, 2015 11:40 am
Forum: 240-300 "Big Block" Six Performance
Topic: Melling cam
Replies: 28
Views: 3720

Re: Melling cam

^That FTF, he's a class act, i tells ya!
by motzingg
Fri Sep 04, 2015 11:15 am
Forum: 240-300 "Big Block" Six Performance
Topic: Roller cams for 300 big six thread
Replies: 55
Views: 7028

Re: Roller cams for 300 big six thread

I can't find the exact article i was reading, I'm at work right now and i'm pretty sure that issue is at home. http://www.enginebuildermag.com/2013/02/top-reasons-and-causes-for-camshaft-failure/ This is from Crane. The article I read said that 3 or 4 manufacturers as of 2005 or so were making flat ...
by motzingg
Thu Sep 03, 2015 5:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Melling cam
Replies: 28
Views: 3720

Re: Melling cam

someone, is it frenchtown flyer? has a manifold made out of 3 intakes, using the center two cylinders and the stock carb flange. you could do the same with 2 one barrel carbs, using 3 runners on each manifold. It would look much more period correct than the EFI lower, but i can't say i wouldn't love...

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