Click Here -> Please Consider Making a PayPal Contribution to the FordSix Forum!
2019 Contributors:
NJwpod, 1strodeo, mightynorseman, maxtrux, 6d7coupe, broncr, Phase3, 68Flareside240, bmbm40,
mustang6, WorldChampGramp, justintendo, BigBlue94, ags290, motorsickle1130, Rooster, ousooner919, ethanperry
rzcrisis, DoctorC, jamyers, Motorboy, fastpat, Silverback280, chad


<<< New Site Update >>>

Search found 674 matches

by cr_bobcat
Fri Sep 06, 2019 8:35 pm
Forum: 144-250 "Small Block" Six Performance
Topic: College Senior Design Project for the 200
Replies: 19
Views: 647

Re: College Senior Design Project for the 200

Chad - I should have been more clear. Only the adapter would be welded together. The goal is something that is bolt on: assuming you've milled the log off the same way I do and drill and tap the appropriate holes in the head.
by cr_bobcat
Fri Sep 06, 2019 9:58 am
Forum: 144-250 "Small Block" Six Performance
Topic: College Senior Design Project for the 200
Replies: 19
Views: 647

Re: College Senior Design Project for the 200

I actually have a small log head at the machine shop getting the whole side of the head cut off. The guy said he'd do it for $100. Once I have it back, I'm going to start taking measurements. I'm going to take a sheet of plexiglass to start laying out an adapter plate design. I have a 3x HS6 Lynx in...
by cr_bobcat
Tue Jul 09, 2019 11:54 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Final Dynamic Compression Ration Check Assistance
Replies: 38
Views: 1526

Re: Final Dynamic Compression Ration Check Assistance

I can run the numbers for you again if you'd like. Or I can just post the script. It runs on a freeware version of an engineering program called Octave. Well, I wrote it on Matlab, but Octave runs most Matlab scripts. I ran it on both to ensure I got consistent results.
by cr_bobcat
Fri May 10, 2019 3:17 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Final Dynamic Compression Ration Check Assistance
Replies: 38
Views: 1526

Re: Final Dynamic Compression Ration Check Assistance

And here is what I come up with if the machinist only does a 0.020" overbore for a 3.70" bore. Not significantly different, but here they are anyway :beer: ================================================ INPUT - BUILD PARAMETERS ================================================ Block Speci...
by cr_bobcat
Fri May 10, 2019 3:15 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Final Dynamic Compression Ration Check Assistance
Replies: 38
Views: 1526

Re: Final Dynamic Compression Ration Check Assistance

Minor correction. I forgot to adjust for the piston compression height. Most the new pistons come with a 1.500" compression height. The numbers don't actually change, but here is the output for the corrected calculation. This is with the same 0.030" overbore that I forgot to mention previo...
by cr_bobcat
Fri May 10, 2019 3:08 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Final Dynamic Compression Ration Check Assistance
Replies: 38
Views: 1526

Re: Final Dynamic Compression Ration Check Assistance

Double check what I put in for the inputs, but this is what my handy-dandy little homebrew tool came up with. Oh, I ran it the first time with the ground-in advance set to 0deg. Assuming the cam card gave you the intake closing value, it would appear that there is 2 deg of advance ground in. I'll as...
by cr_bobcat
Fri Apr 26, 2019 12:35 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Order of execution on a build
Replies: 45
Views: 3275

Re: Order of execution on a build

If you have a 0.030" clearance, then someone put in new pistons. The original stock ones had a compression height of 1.511" and resulted in a 0.019" deck height. The replacement pistons are 1.500" compression height. So with the replacement pistons in there and no deck milling, y...
by cr_bobcat
Tue Mar 19, 2019 10:03 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Best 2100 size to use
Replies: 29
Views: 1324

Re: Best 2100 size to use

I would go with the 1.08. I loved the 1.14 I had on mine, right up until I cracked one of the feet off. Don't over tighten those old carb bodies....
by cr_bobcat
Thu Feb 28, 2019 4:57 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Piston Selection - Hypereutectic vs Cast
Replies: 18
Views: 1079

Re: Piston Selection - Hypereutectic vs Cast

I changed the compression height for the new computations, I just didn't copy/paste in the new input data, just the outputs. Here is the output for the 7.7cc dish, 1.530" compression height. ================================================ INPUT - BUILD PARAMETERS ==============================...
by cr_bobcat
Thu Feb 28, 2019 1:19 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Piston Selection - Hypereutectic vs Cast
Replies: 18
Views: 1079

Re: Piston Selection - Hypereutectic vs Cast

Interesting find. I think I've heard about these before but thanks for bringing it up. I might need a bottom end rebuild if my suspicions of bad rings is correct and this would be a great route as my block is uncut and standard bore. Bottom Line Up Front: I could use these pistons and a modern gaske...
by cr_bobcat
Wed Feb 27, 2019 2:35 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Home Exhaust Porting
Replies: 5
Views: 586

Re: Home Exhaust Porting

I used a dremel with an assortment of burrs, stones, and sanders. I also used the aforementioned HF electric die grinder and electric motor control. I only have a little 5 or 6 gal pancake compressor and I didn't feel like listening to it run all the time. I got a die grinder sanding kit from HF as ...
by cr_bobcat
Thu Feb 07, 2019 11:10 am
Forum: 144-250 "Small Block" Six Performance
Topic: Oil Leaks from Too Much Crankcase Pressure
Replies: 8
Views: 708

Re: Oil Leaks from Too Much Crankcase Pressure

Interesting. I wonder if this has been my issue all along. I still plan on running a leakdown test at some point here, but I'll order one of these bad boys in the mean time. Thanks for the tip!
by cr_bobcat
Fri Jan 18, 2019 10:40 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Need an engine
Replies: 13
Views: 1135

Re: Need an engine

Welcome back Charles! How is the LH6 doing?
by cr_bobcat
Wed Sep 12, 2018 7:15 am
Forum: 144-250 "Small Block" Six Performance
Topic: 221 Stroked 200 - Myth or Reality
Replies: 22
Views: 2664

Re: 221 Stroked 200 - Myth or Reality

I would be interested too!
by cr_bobcat
Tue Aug 07, 2018 9:46 am
Forum: 144-250 "Small Block" Six Performance
Topic: Autolite 2100 or 2150?
Replies: 11
Views: 1426

Re: Autolite 2100 or 2150?

A 1.21 could be used depending on how you have your engine set up. If you've ported a large log head and intend to run higher RPMs, then it'll work fine. Otherwise you could go with a 1.08 or 1.14. I ran a 1.14 and it worked great.
by cr_bobcat
Wed Jul 18, 2018 11:07 am
Forum: 144-250 "Small Block" Six Performance
Topic: Alternative 200 six connecting rod
Replies: 37
Views: 6205

Re: Alternative 200 six connecting rod

So has there been any movement here on someone trying one of these alternatives yet? Just curious.
by cr_bobcat
Mon Jun 25, 2018 8:23 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Cool little engine
Replies: 10
Views: 1224

Re: Cool little engine

Any of the stock manifolds will mate up. There is an oddball one that mates to a catalytic converter or something like that. Probably not what you are looking for. I do have a couple, but I'm here in IA.
by cr_bobcat
Mon Jun 25, 2018 1:31 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Cool little engine
Replies: 10
Views: 1224

Re: Cool little engine

Where are you at?
by cr_bobcat
Mon Jun 25, 2018 1:30 pm
Forum: 144-250 "Small Block" Six Performance
Topic: high ratio rocker arms
Replies: 137
Views: 20529

Re: high ratio rocker arms

I haven't seen him on here for a couple of years. Not sure what ended up going down.
by cr_bobcat
Thu Apr 26, 2018 11:50 am
Forum: 144-250 "Small Block" Six Performance
Topic: Changing rockers out
Replies: 19
Views: 2448

Re: Changing rockers out

I'm running 1.65 rockers with a larger lift cam and don't have any issues with the 0.495" lift on the exhaust side. Intake is a slightly smaller 0.485". Nothing ever really surprises me, but you should be good to go. :beer:
by cr_bobcat
Wed Apr 11, 2018 9:05 am
Forum: 144-250 "Small Block" Six Performance
Topic: Good news and bad news
Replies: 15
Views: 1731

Re: Good news and bad news

Those little 144s were used in hydroplanes and rev'ed through the roof. There's a lot of hidden potential there if one has the patience to tease it out. There are little known toys out there like this https://bangshift.com/bangshift1320/cool-parts-we-found-this-old-ford-inline-six-hilborn-injector-f...
by cr_bobcat
Tue Apr 10, 2018 1:47 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Crank Scraper ????
Replies: 14
Views: 2256

Re: Crank Scraper ????

Was thinking about this today. Curious to see if there's been any further follow-up with the manufacturer. :beer:
by cr_bobcat
Fri Apr 06, 2018 9:32 am
Forum: 144-250 "Small Block" Six Performance
Topic: Ford Six HotRod Articles
Replies: 25
Views: 5122

Re: Ford Six HotRod Articles

Fantastic stuff! Thank you for uploading!
by cr_bobcat
Mon Apr 02, 2018 9:23 am
Forum: 144-250 "Small Block" Six Performance
Topic: Going for 150 rear wheel hp...
Replies: 20
Views: 2736

Re: Going for 150 rear wheel hp...

Just get one of these... http://www.aussiespeedshop.com/product/ford-6-cylinder-250-2v-dual-4-barrel-manifold-as0032as0139/ The VI intake can be made to work. Based upon what I've read, 2hen Mike originally had the heads cast, he tried to get the intake to match up with the 2V. He got close, but not...
by cr_bobcat
Fri Mar 16, 2018 11:21 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Push rod Length Checking Tool.
Replies: 6
Views: 839

Re: Push rod Length Checking Tool.

RAU does make a 1.65 rocker that is shaft mounted, but it's not cheap. If you call and talk to Gary, he should know the setup.
by cr_bobcat
Thu Mar 15, 2018 10:30 am
Forum: 144-250 "Small Block" Six Performance
Topic: Vintage Inlines 32/36 Weber Swap Kit?
Replies: 18
Views: 2601

Re: Vintage Inlines 32/36 Weber Swap Kit?

You'll want to double check the installed height of whatever choice you make. Matt might be able to give you this information. I know that I have slightly more room with my Holley than I did with the Autolite 2100. I don't think you'll have to run a spacer if you use the 2 bbl adapter. If you do go ...
by cr_bobcat
Tue Mar 13, 2018 2:39 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Alternative 200 six connecting rod
Replies: 37
Views: 6205

Re: Alternative 200 six connecting rod

Dagnabbit....eBay just ran a 20% off deal a few days ago. If I were on top of things I would have snagged a set... :bang:
by cr_bobcat
Tue Mar 13, 2018 9:35 am
Forum: 144-250 "Small Block" Six Performance
Topic: Free Head
Replies: 14
Views: 1689

Re: Free Head

Well, I would say any head from 69 and up will work, from a 2bbl adapter standpoint. I think a multi-carb setup is another story. Plenty have made that work successfully.
by cr_bobcat
Wed Mar 07, 2018 3:41 pm
Forum: 144-250 "Small Block" Six Performance
Topic: The Legend of Dyno #2A
Replies: 30
Views: 4162

Re: The Legend of Dyno #2A

Here is the link https://fordsix.com/ci/Dyno2.html " Mike Raley has dyno'd most of his upgrades while building his motor in stages. This is actually quite interesting and a good comparison of the various upgrades. Dyno test on a stock 200ci motor with a 1V carb, stock dizzy, and stock exhaust. ...
by cr_bobcat
Wed Mar 07, 2018 10:30 am
Forum: Transmission & Drivetrain
Topic: And it Chatters
Replies: 47
Views: 4682

Re: And it Chatters

I didn't hear any ticking noises. What I did hear sounded like a flex fan though.
by cr_bobcat
Mon Feb 19, 2018 11:20 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Another header question... Mustangs Unlimited
Replies: 4
Views: 854

Re: Another header question... Mustangs Unlimited

Looks like the Scott Drake dual out header. I've read bad things about that header from a fitment standpoint. The single out version from Scott Drake doesn't serum to suffer the same issues though.
by cr_bobcat
Mon Feb 12, 2018 9:33 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Help on 2V conversion
Replies: 3
Views: 637

Re: Help on 2V conversion

Yeah, double check the piston shortfall. Stock is 0.019" but that is with taller pistons than what is out there in the aftermarket. Replacementposton (that I've found anyway) have a compression height of 1.500" as opposed to stock at 1.511". So who knows if the PO milled the deck. I'm...
by cr_bobcat
Mon Feb 12, 2018 7:39 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Help on 2V conversion
Replies: 3
Views: 637

Re: Help on 2V conversion

Well, before you get too far, make sure you cc the head before you mill it. You'll reduce the chamber volume by roughly 2cc per 0.010" of mill (give or take). If you mill it 0.075" and it's already been milled 0.020" by the PO, you're going to run into issues with thin walls on the he...
by cr_bobcat
Wed Feb 07, 2018 12:05 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Help finding my compression ratio.
Replies: 20
Views: 2635

Re: Help finding my compression ratio.

A 0.030" deck mill will get you here. Note the ~0.040" squish. This puts you in the right zone. I'd have to go back and read again on what is allowable for aluminum vs cast iron. You might be able to go with even further of a mill and have the piston reach TDC slightly proud of the deck su...
by cr_bobcat
Wed Feb 07, 2018 11:57 am
Forum: 144-250 "Small Block" Six Performance
Topic: Help finding my compression ratio.
Replies: 20
Views: 2635

Re: Help finding my compression ratio.

So I think I got the block and head data in there correctly. I don't know about the camshaft profile though. I assumed you have a 110* lobe separation angle. Didn't even take a guess at the lift numbers so I've left in the ones I have on my cam. ================================================ INPUT...
by cr_bobcat
Wed Feb 07, 2018 7:17 am
Forum: 144-250 "Small Block" Six Performance
Topic: Help finding my compression ratio.
Replies: 20
Views: 2635

Re: Help finding my compression ratio.

Been busy lately. I'll try running your numbers later today and see what I come up with. That Pat Kelly article looks like he's using the exact same research article I found for computing DCR. The wording is extremely close.
by cr_bobcat
Wed Feb 07, 2018 7:11 am
Forum: 144-250 "Small Block" Six Performance
Topic: Piston identification
Replies: 8
Views: 1504

Re: Piston identification

I had the head milled 0.070". I started by measuring the combustion chambers <- critical first step! My C9 casting log head started off with 61-61.5 cc chambers. I read a few articles here and figured out what to expect in terms of volume reduction per 0.010" of mill. My goal was 48cc cham...
by cr_bobcat
Mon Feb 05, 2018 10:03 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Piston identification
Replies: 8
Views: 1504

Re: Piston identification

I'm at 9.45:1 with stock pistons. I have 48cc chambers and am using a gasket with a thickness of 0.035"
by cr_bobcat
Fri Feb 02, 2018 6:43 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Coat my headers?
Replies: 4
Views: 690

Re: Coat my headers?

I did and love it!

I had then done locally. I had them coated inside and out. Did not do a polish but had them left with a silver color. I just know that there is no way I would spend the time to clean and polish them regularly since I have 4 kids under 8 yr old....
by cr_bobcat
Wed Jan 24, 2018 9:53 am
Forum: 144-250 "Small Block" Six Performance
Topic: Genius idea or insane.
Replies: 11
Views: 1816

Re: Genius idea or insane.

There are a few safety related links around. Here is one from the Mustang section of the forum. Go check it out.

https://fordsix.com/viewtopic.php?f=11&t=75965
by cr_bobcat
Sun Jan 14, 2018 9:29 am
Forum: 144-250 "Small Block" Six Performance
Topic: Weber DCOE?
Replies: 26
Views: 4358

Re: Weber DCOE?

Here is another interesting approach. Not period correct, but pretty slick.

http://www.v-performance.com/products/air_fuel.html
by cr_bobcat
Sun Jan 14, 2018 9:26 am
Forum: 144-250 "Small Block" Six Performance
Topic: HEI Distributor Installation
Replies: 27
Views: 2989

Re: HEI Distributor Installation

The wrong PCV valve can make your idle rough. Different valves open with different pressure so you have to make sure you have the correct one for your setup. I know they aren't cheap, but an adjustable one would solve that part of the equation.

http://mewagner.com/?p=444
by cr_bobcat
Sat Jan 13, 2018 8:08 am
Forum: 144-250 "Small Block" Six Performance
Topic: Weber DCOE?
Replies: 26
Views: 4358

Re: Weber DCOE?

I've seen pictures but haven't seen one in action. I've also loved the look of that configuration
by cr_bobcat
Thu Jan 11, 2018 4:39 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Who has the Offenhauser 3x1 aluminum intake?
Replies: 25
Views: 2815

Re: Who has the Offenhauser 3x1 aluminum intake?

That covers it. As mentioned earlier though, there are different castings of the head. You'll need a different setup based upon what head you have. In 1969, the log got bigger and wider, so you would need the Offy manifold designed to fit the smaller diameter log. I would recommend calling Matt at V...
by cr_bobcat
Thu Jan 11, 2018 7:08 am
Forum: 144-250 "Small Block" Six Performance
Topic: Placement of Performance Muffler
Replies: 8
Views: 1253

Re: Placement of Performance Muffler

I'm not sure to be honest. Maybe go to VintageInlines website and look at the kits for ideas. Or buy the kit!

http://www.vintageinlines.com
by cr_bobcat
Thu Jan 11, 2018 7:00 am
Forum: 144-250 "Small Block" Six Performance
Topic: Who has the Offenhauser 3x1 aluminum intake?
Replies: 25
Views: 2815

Re: Who has the Offenhauser 3x1 aluminum intake?

It's an aluminum plate that mounts over the log. I would recommend VintageInlines. This way you are sure to get all the mounting hardware and the linkages.

https://www.vintageinlines.com/product-page/offenhauser-triple-manifold-adapter-1960-1968
by cr_bobcat
Wed Jan 10, 2018 8:46 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Finding a large log cylinder head?
Replies: 46
Views: 6203

Re: Finding a large log cylinder head?

FWIW, I did not have mine grazed and it worked out just fine. If you're set on brazing, talk to 1hotvega on here. He is in Cali but does great work from the pictures I've seen.
by cr_bobcat
Tue Jan 09, 2018 7:41 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Power saving options
Replies: 9
Views: 984

Re: Power saving options

I've also been researching the Davies Craig one. You will need a strongeralternator though to run all this. The higher output alternator do take more power to turn, so it's not all "free".

Go to advanced search