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Old 03-06-2012, 10:15 PM   #1
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What's your opionion on B303 cam

I was told by a respected tuner recently that he had never seen much power come from a B303 cam and to not bother installing it. I am not doubting his expertise, I am just wondering what kind of results others have had with them. I have one, that I got for free, and was considering putting it in. My car is a factory short block with GT40 heads and the bolt on supporting hardware. What kind of power could I expect from the B303?
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Old 03-06-2012, 10:22 PM   #2
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10-20hp easy. Trade is low end and loss of MPG.

Could use a modern cam and get the 10-20hp and not lose low end and not see a loss in MPG
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Old 03-06-2012, 10:45 PM   #3
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It sounds good and is better than a stock cam. The B cam was my first cam I upgraded to. My car ran 12.67@106 with a gt40 combo in the early 1990's. My gas mileage didn't suffer,but low end torque was horrible.
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Old 03-06-2012, 10:46 PM   #4
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I do not know anything much about Cams, but Roush Racing is telling me that the B-Cam is what I need to run on my 93 Cobra with AFR 185's. I have 355's and a Cobra upper & Lower Extrude Honed.
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Old 03-06-2012, 10:50 PM   #5
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a B cam is the pinacle of camshaft engineering. All other cams live in the shadow of the almighty B cam. Seriously though, sell it buy something better. for the time and cost of gaskets and other things to swap it you could get a used comp cam or something better.
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Old 03-06-2012, 11:07 PM   #6
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Too Easy.....
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Old 03-06-2012, 11:12 PM   #7
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Since you got it for free use it. If you haven't already done so,I would upgrade the spring package on your heads,gt40 hardware is usually junk. I know there are a lot af alphabet cam haters,but I have seen gt40 combos in the elevens with them. My best with my gt40/e-cam was 12.13@111. My good friend Craig Henrici raced for Anderson Ford in the early days went 11.84@112 with a stock bottom, Gt40 irons,b-cam,in a '88 GT.
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Old 03-07-2012, 12:00 AM   #8
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Walk with me my son.

I am so proud of you, yet envious at the same time. This will all be new to you, fresh and unblemished. Soon, you will be experiencing for the first time that which many others could hardly dare to fantasize about. You are so young in your quest for Ford Performance. So new and fresh in this endeavor yet you seek out The One. You truly show a wisdom far beyond your years. I know King Lord God Bcam's power and ferocity first hand. I know his kindness to the environment as well as his vengeful fury towards those who would blaspheme His glorious and exalted name, for they are fruitless in their endeavors of dethroning Him.

I am his humble messenger.

Let us reflect.

For I am victorious, only because He has made me so. He bringith us to victory for his own glory. We are merely stewards of his divine lobes.

You see, my son, there are no opinions of King Lord God Bcam. Only facts. He is the bringer of tears. Tears in the cries of victory for his followers. Tears in the grief stricken eyes of the defeated. Tears in the eyes of the girlfriend of the fallen, wiped away softly by the caring thumb of His disciple as she gets into his passenger seat and closes the door. She reaches over to pop the door from the inside for the victorious. The eyes of the fallen pour until dry.

Let us remember.

Before Him there was no Ford performance. Slow and feeble were the offerings of the Godless Ford.

He gave himself unto us.

Victory. Power. Glory.

All words which became synonymous with Ford.

Search, my son. Search within the annals of this hallowed internet forum and you will find his words and praises being sung for time eternal.

Search for Lord Bcam.

When you stare unto Lord Bcam, Lord Bcam stares back at you.

Praise be to Lord Bcam.
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Old 03-07-2012, 01:48 AM   #9
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I feel honored to have read this thread Cobra427.
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Old 03-07-2012, 04:42 AM   #10
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I have had ZERO troubles and do seem to glow when I'm around my B cam. My wife seems to like it too. It is slender but bumpy in all the right places.

Gaze upon this video and all of your doubts and fears will be washed away.

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Old 03-07-2012, 05:11 AM   #11
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Get something better, more power, better fuel and more low end tq...Technology is a wonderful thing, stop using stuff made in the 80's...
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Old 03-07-2012, 06:15 AM   #12
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I was in a simalar situation about having a B cam sitting on the shelve and considering throwing it in. I installed it and now wish I never had. Overall, the stock cam was much better IMO. I should have bought a different cam or had one made. FYI: the B cam came out on 1985 I believe. To me, that shows just how outdated that cam is.
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Old 03-07-2012, 07:39 AM   #13
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I have used the B-cam on a couple of my previous mustangs with good results. My last car made 260hp and 300lb torque at the wheels with just b-cam, cobra intake, shorty headers and exhaust.
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Old 03-07-2012, 07:41 AM   #14
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Quote:
Originally Posted by wheelhopper View Post
I have one, that I got for free
Then when you sell it, it will be a 100% margin sale for you. Get something better. I would look at what ever Lunati and Comp have for offerings for your combination.
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Old 03-07-2012, 08:32 AM   #15
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For 25 years Cam manufacturers have been trying to top the sheer awesomeness of the mighty B-cam , sadly none have succeeded...yet
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Old 03-07-2012, 08:42 AM   #16
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The B-cam is so good, Larry Morgan runs TWO of them in his Pro Stock Mustang!





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Old 03-07-2012, 08:57 AM   #17
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^^^


my car had one in it when i bought it. It really needed a 5pt harness from the surging and bucking--which could be fun if your wife/girlfriend is on your lap. it isn't worth the time and gaskets...My $.02.
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Old 03-07-2012, 02:37 PM   #18
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^^^


my car had one in it when i bought it. It really needed a 5pt harness from the surging and bucking--which could be fun if your wife/girlfriend is on your lap. it isn't worth the time and gaskets...My $.02.
+1
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Old 03-07-2012, 06:07 PM   #19
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"... time and gaskets..."

Is gasket slang for condom now? Are you saying you could not afford all the condoms you would have to buy because of the known effect Bcam has on females??

Maybe I am a little confused. I mean...why else would you own a... or have a..... They're cheap for crying out loud!! How effective has King lord God Bcam been for you in that aspect??

Oh Lord Bcam.... Why have you forsaken me?!?!?

Praise be to Bcam
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Old 03-07-2012, 08:35 PM   #20
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I don't think I have ever gotten such a response in such a short time. If I can get better with another cam, I'll hold off on installing the B cam. I race time trials and if I am going to take points for a cam, I might as well get as much power as I can.

Anybody want to buy a B303 cam? LOL
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Old 03-07-2012, 08:37 PM   #21
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I have no idea why that outdated pos B cam is still popular.

It may have been the first performance roller cam offered for the 302,but that doesn't make it good.
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Old 03-07-2012, 09:29 PM   #22
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Now thats some ridiculous sht!Nice video!
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Old 03-07-2012, 10:28 PM   #23
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Quote:
Originally Posted by 8950HO View Post
I have no idea why that outdated pos B cam is still popular.

It may have been the first performance roller cam offered for the 302,but that doesn't make it good.
I suppose I should actually answer the OP's question about opinions of the Bcam.

Because it has been sold since the invention of dirt does not mean that it is a pos.

I can understand why some have had issue with this cam. For starters the cam should be run with 1.7's. The lobes are, well, lazy is a kind way to put it. The lift value with 1.6's ( .480) is far shallow of what most modern aftermarket cams have to offer. In fact, it is the lowest lift value of any of the letter cam offerings. When paired with 1.7's the cam lift changes to a more logical and proper .510 and along with the higher lift gains a much needed ramp profile at the valves. Secondly, the cam should be installed 2* advanced to place the max intake event at 105*....Wait, let me stop right there.

Cam designs and profiles can and have been beaten to death forever. Facts is, there are plenty of guys who have run in the 11's with the B 303 naturally aspirated. I myself have run countless traction limited 12.40's with the combination in my signature. It's all about the combination.

Because of the lazy lobe profile (to a lesser extent with the 1.7's) This cam is kind to valve train components. My combination is coming up on TWELVE years old and has countless miles of Solo 1 and Solo 2 track time as well as, at last count, over 500 passes down the 1/4 mile. I'm not sure how many guys can brag on that level of durability of their combination... which bring me to my main point.

The B 303 is a fantastic HOBBY GRADE cam, which is what this is at the end of the day. Whether the car runs 13's or 10's it's still a pass time. ( I have seen Bcam combinations cover this spread) At the end of the day it is a very fun cam to own with the right combination. It sounds nice and it works very nicely with the stock electronics.

But I have to ask a question: If this cam is so terrible, why in the world am I still showing my tail lights to guys with (insert cam of choice here) combinations? I am laying down over 300rwhp, it passes a California sniffer, it is a riot to drive...

Would a custom cam give me better results??

Maybe.

How about another ots cam, could I get profoundly better results?

I doubt it. At least not enough to justify the switch.

Finally

It's got a Ford part number.....


Praise be to Lord Bcam.
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Old 03-07-2012, 11:18 PM   #24
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Well that info does provide some better insight. I run TT with NASA and some improvement in power that is also easy on parts is a good thing. If I gain 40hp from a cam, but grenade the motor from running 3500-6000 rpm for 25 minutes, then what good does it do me. I don't want to be rebuilding my motor 2-3 times a year. I also have 1.72 rocker arms I can use. Would that be a worth while combo? I saw that some mentioned a loss of low end torque. I currently run 3.55 gears, but could switch to 3.73 if that would help coming out of turns. Keep in mind my motor stays over 3000rpm the entire time.

My original thought was to get the TFS stage 1 cam, until I got this B303. Should I just stick with my original thought.
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Old 03-07-2012, 11:36 PM   #25
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Quote:
Originally Posted by wheelhopper View Post
Well that info does provide some better insight. I run TT with NASA and some improvement in power that is also easy on parts is a good thing. If I gain 40hp from a cam, but grenade the motor from running 3500-6000 rpm for 25 minutes, then what good does it do me. I don't want to be rebuilding my motor 2-3 times a year. I also have 1.72 rocker arms I can use. Would that be a worth while combo? I saw that some mentioned a loss of low end torque. I currently run 3.55 gears, but could switch to 3.73 if that would help coming out of turns. Keep in mind my motor stays over 3000rpm the entire time.

My original thought was to get the TFS stage 1 cam, until I got this B303. Should I just stick with my original thought.
A B303 with 1.7's vs a TFS1 with 1.7's is about a wash. I have seen some dyno more than mine, some less, never enough of a difference to run to the parts locker. With similar combinations to mine they both peaked around 5700 rpm. I have always liked the stage 1 for street applications and in truth it is a great cam. As with nearly any cam there will always be a trade off between low end torque and top end power production. If your combination will be living in the 3000-5500 rpm range for most of it's life the low rpm loss will not be an issue. As for gearing, my car actually liked 3.55's. I have thought of moving back to them a time or two. The 3.90's are fun on the street though and should I ever decide to start going back to the track again either 3.55's or 3.73's would get the nod.
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Old 03-07-2012, 11:46 PM   #26
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How would this came compare power wise with the Comp XE-266HR-12? I assume they would both pass ca smog what kind of power gains on a stock longblock??

Sent from my DROIDX using AutoGuide.com App
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Old 03-08-2012, 12:53 AM   #27
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How would this came compare power wise with the Comp XE-266HR-12? I assume they would both pass ca smog what kind of power gains on a stock longblock??

Sent from my DROIDX using AutoGuide.com App
Compared to the B or S1 that cam has much more aggressive lobe profile, would not be easy on valve train components and I would venture a guess and say it would probably require springs in the 150-400 lb range to work. It would peak at near the same RPM in a comparable combination (combinations like mine) (?). For the events that cam provides I would rather run a solid roller.

Still though, this is what I was talking about in terms of aggressive ramp rates. Duration of 216 @ .050 and an intake lift of .545. It looks great on paper but I have to ask some questions? I'm actually curious and I would really like some input on this subject. I have my own ideas but would enjoy the experiences of others.

Where is the line drawn? When does a HYD roller profile encroach on what is an acceptable solid roller profile?

Where is the line drawn between a hobby grade cam and a competition level cam?

What kind of durability will this profile provide long term?

More importantly;

Why in the world would Ford not offer a cam like this as available to the public?

Would the claims rate be too high?

Letter cams are made by Crane. Why not bring in some newer grinds?

Clearly, these are topics for their own thread...
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Old 03-08-2012, 05:32 AM   #28
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Letter cams are made by Crane. Why not bring in some newer grinds?
Because they sell the hell out of what they offer now. People can talk badly about the letter cams all they want but at the end of the day, people are still buying them by the truck load.

The B cam may be the ultimate Fairgrounds cam. It has a great sound and when used in the correct application with the correct parts and tuning, it's a great performer. BTW, I put mine in at + 4°. I got some great advice from Thumper460 on setting my whole combo up. He still highly recommends this cam.
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Old 03-08-2012, 07:58 AM   #29
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Bcam Fo Eva
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Best so far: 10.92 @ 123mph with a 1.49 60ft
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Old 03-08-2012, 08:17 AM   #30
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Because they sell the hell out of what they offer now. People can talk badly about the letter cams all they want but at the end of the day, people are still buying them by the truck load.
Actually, that's not true. There were only about a hundred of these "almighty" B-camshafts sold to the general public.

The original buyers of these "almighty" B-cams from the 80's removed them and installed more modern camshafts and always run faster. However, when they realized that they were lied to by the magazine writers and Ford Motorsports advertising, when they managed to sell them, they touted them as the "almighty" B-cam in order to preserve the tale of the "almighty" B-cam.

The second, third and even fourth owners of said "almighty" B-cams just passed on the tale of "mass quantities of horsepower generation" to the next buyer in order to keep the mystique of this "almighty" B-cam intact. In order to preserve the fabled history and swap meet value, these sellers never once told the newest owner of these "almighty" B-camshaft that it is truly a giant piece of crap.

All bow down and praise the "almighty" B-cam and its fabled history!




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Old 03-08-2012, 08:25 AM   #31
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The B-cam is so good, Larry Morgan runs TWO of them in his Pro Stock Mustang!





Ed, can you grind a custom B cam?
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Old 03-08-2012, 08:30 AM   #32
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all Ed's cams are b cams..he just grinds FTI on the end...
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Best so far: 10.92 @ 123mph with a 1.49 60ft
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Old 03-08-2012, 08:35 AM   #33
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That explains why FTI cams are so bad ass.
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Old 03-08-2012, 08:40 AM   #34
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yep. i just bought one from Ed for the new setup..you can see where he scratched out the m-6250-b303 with a sharpie...
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Best so far: 10.92 @ 123mph with a 1.49 60ft
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Old 03-08-2012, 09:22 AM   #35
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Compared to the B or S1 that cam has much more aggressive lobe profile, would not be easy on valve train components and I would venture a guess and say it would probably require springs in the 150-400 lb range to work. It would peak at near the same RPM in a comparable combination (combinations like mine) (?). For the events that cam provides I would rather run a solid roller.

Still though, this is what I was talking about in terms of aggressive ramp rates. Duration of 216 @ .050 and an intake lift of .545. It looks great on paper but I have to ask some questions? I'm actually curious and I would really like some input on this subject. I have my own ideas but would enjoy the experiences of others.

Where is the line drawn? When does a HYD roller profile encroach on what is an acceptable solid roller profile?

Where is the line drawn between a hobby grade cam and a competition level cam?

What kind of durability will this profile provide long term?

More importantly;

Why in the world would Ford not offer a cam like this as available to the public?

Would the claims rate be too high?

Letter cams are made by Crane. Why not bring in some newer grinds?

Clearly, these are topics for their own thread...


This was my question, I am sure it would provide better AVERAGE power as I have seen this in the LSX stuff I have built in the past, my question is, will the valvetrain handle it and will it really be much help with a 3000 stall? I mean with an auto the more I think about it, you will NEVER see below about 80% of the rated stall speed, so bottom end doesn't even matter right? Now as for the power curve from there up, would you say there would be any real noticeable gains or do you think they will be relatively close? I mean if we are talking 10hp difference, ill just save my $300.00 difference and get the B cam and cheaper springs! I have a feeling the gt40 heads die off much past .500" lift anyway even when ported...

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