The Legendary B303 Camshaft Rated - SN95 Owner's Guide #7
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- čas přidán 27. 08. 2024
- There perhaps nothing more glorious than the sound of a well cammed V8! But is that cammed sound doing anything good for your power production? In Owner's Guide #7 we explore just what gains are to be had with the Ford Racing B303 camshaft. Dyno charts inside!
This is the SN95 specific series you have been waiting for! No BS, just pure tech and experience, Darren is here to serve the SN95 community and help you get the most out of your 1994-1998 Mustang!
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ive seen alot of Bcam cars that ran freakishly good with GT40 irons and cobra/explorer intakes.beings that GT40 heads peak flow of around 195CFM comes in at around .450lift and stays consistant 195cfm to .500 lift the B cam falls on the higher side of these peak flow numbers for this particular head so it would stand to reason this would be a very nice power making cam for the GT40 head and intake family.The problem i see with the trick flow heads and this cam is that trick flows peak flow numbers come in at substantially higher lift and most likely are soggy down low with this cam due to lack of intake velocity stocl heads are designed for HIGH airflow velocity at low RPM with thier smaller port design thats why 5.0HO stock were so darn punchy just off idle the stock E7 heads were small and very high veliocity thus making butt loads of low speed torque but fall off at anything over 4500-5000.when choosing a cam look at your heads flow numbers and where in the lift range they flow best to choose your cam. if a GT40 head peaks out at 195CFM at .500 lift max then a .525 lift cam is not gonna do a thing other than beat the crap out of valve springs. if you run a Bcam with GT40 heads and either a cobra explorer or GT40 tubular intake with a 70mm TB 3.73-4.10 gears and 5 speed i guarantee you will not be disappointed also 24-30LB injectors and tune the Bcam will deliver i promise the stock E7 heads are to small for this cam and the trick flow heads are to big GT40s are about perfect for this camshaft
I remember the b303 was the 1st 5.0 cam that sounded like a hot rod.
b cam with 1.72 rockers is where its at
I love my Anderson N-41 cam, and am glad I didn't go with the B303. I was lucky enough to read a post in a thread about a guy that did the same thing. He had a fox, iron e7 heads, 24lb injectors and an intake (I wanna say it was a ported Explorer intake). After the B303 he was not happy. He ended up ordering a custom grind camshaft among other things in the end. But after I read that, I just had a feeling I didn't want to be another guy with a B303 fox. I know it's not the most extreme cam, but the N-41 works great with my setup.
For reference I have:
Original factory block
Anderson N-41 (Item #AFM-N41 MPN# N41) from LMR
Original factory pistons (did not need to be notched for clearance)
AFR 185cc heads (AFR1492 is how they are listed on the cj site, but they are 60cc combustion chamber 70cc exhaust, intake valve 2.020 and exhaust 1.600) from cjponyparts
ARP head bolts (HBK3701 on cjponypoarts, 154-3701 from ARP) from cjponyparts
Comp Cams hardened pushrods (Item 30151 MPN# 7826-16 ) from AmericanMuscle
Ford Racing hydraulic rollers (Item 50441 MPN# M-6500-R302H) from AmericanMuscle
Edelbrock Victor 5.0 intake manifold (EDL2945) from cjponyparts
SR Performance 75mm throttle body (Item 41101 MPN# 41101) from AmericanMuscle
SR Performance 75mm EGR spacer (Item 41102 MPN# 41102) from AmericanMuscle
SR Performance cold air intake (Item 41095 MPN# 41095, pulling air from the fender) from AmericanMuscle
Pro-M 75mm Mass Air Meter (MAM869350-V) calibrated by Pro-M from cjponyparts
30lb ACCEL fuel injectors (INJ30) from cjponyparts
Ford Motorsport timing chain set (M-6268-B302) from cjponyparts
Edelbrock water pump (not sure on the number but I think it's SKU: 8045) from Edelbrock
I'm sure I'm missing some stuff, but I hope this helps someone out there.
Give us more of these SN95 videos man....
You got it! Working hard to build you guys more!
Works well on my carbureted 5.0. Pulls strong at 3k rpms and up
@f150bft- The B303 cam works well with carbed intakes to 6500Rpm. Add 1.72 Roller Rocker's, Rpm Air Gap intake, with a 600 to 750 carb., and a set of high flow headers= a ripper, imo.
I loved my f cam. Good low end torque and top end power..
I want to install an F303 but what else do I have to change or modify to make it work correctly help me please, you already did it, thanks
@@omarracing67 nothin. Just put the cam in.. I was racing my car on the street back then.. My heads were shaved bigger valves port and polished. Port n polish lower gt40 intake.. But that cam really shines with a 5 speed..
@@MrCt302 But do you have to change rocker arms, springs and rods for that type of f303?
@@omarracing67 Yea i had 1.6 rocker and u must change valve springs to duel valve springs cause its a higher lift cam.. But u don't have to mess with bottom end..
@@MrCt302 thanks me ha sido de mucha ayuda gracias
im a fan of the "letter cams" ive been around cars with all them except the zcam….they are cheap and id installed correctly do their job....running the x in a mild h/c/I 357w in my 95gt....it sounds good and has a nice wide powerband......
The alphabet cams should have been split to give the exhaust more lift and duration.
That would have helped for sure. Interestingly David Vizard published a video where he was quite critical of the ramp rates being too slow to be very effective. I would recommend his video on that for a very qualified analysis of the letter cams beyond my scope. Thanks for commenting! - Darren
Just out of High School I ran a Fox Body with Dart 2.02 1.60 iron heads Edelbrock performer intake, 24lb injectors, running the old SVO extender chip on the computer, with a MotorSport X-Cam. On a 200 NOS shot the car was a beast. At idle Harley Davidson guys would break there necks trying to get a 2nd & 3rd look. But that car was a limp dog down low. But to be honest I would probably trade my 2003 Cobra even to have my 1988 GT back.
What about the E cam
The problem is that the alphabet cams are all single pattern cams. They have the same amount of duration for each valve. When doing research for my engine build, it seemed as if all the strong running mild 5.0 motors had dual pattern cams. Generally the fords perform much better with about ten more degrees of duration on the exhaust side to help the small exhaust ports. Additionally, the longer exhaust duration helps to pull in the incoming intake charge. They’re especially benefitted with longtube headers as well. I did a whole explorer junkyard 331 build that pulls incredibly well. Never had it on the dyno. I spent a couple days porting and polishing the heads. I also port matched the lower and straightened out some of the runners. Gt40p heads aren’t the best choice for all out power, but I was looking for a strong torque motor that would pull to 6k which it does without falling off. I run an Anderson n41 which is an amazing cam. It pulls very hard above 2000. Paired with 10.5:1 compression and she’s a mean little motor
Where did you buy that camshaft wife has a 95 svt cobra that I want to change the cam in it the wife wants good power and sound it's a five speed car
Why you stop uploading
I love this channel ❤️!!! I am looking to buy a Cobra. This channel has been a huge help in learning more about the SN95 chassis.
Just watched this vid again and realized that the yellow fox body doesn’t even sound like a b303 cam. Clearly the timing was wrong or the cam wasn’t installed properly with a degree wheel. That does not sound like a b303 whatsoever.
We built that engine from the ground up, and not only was it a genuine B303 cam, it was set up properly and degreed during assembly. The sound is probably more an effect of the crummy video camera (filmed circa 2008) and a speed density PCM. Thanks for watching and commenting. - Darren
I've had an F cam in my sn95 w SCT tune since 2011 love it.
I remember a guy running a B cam in a Ford Ranger back in the 80s.It was slow but sounded good
Great videos as always and love hearing the data. Mine has custom cam like e303 but with 115 degrees of lobe separation for boost and I love it. But I Also have trickflow heads, intake and all supporting mods with boost.
Wow, this is hilarious. I thought my B303 cam was my biggest and best mod in my 93 Notchback. I thought it gave like 25hp! Boy was I wrong, lol! Mine had B303 cam, 3:55gears, full exhaust, cold air intake, underdrive pullies... Not much, so I this is why I thought the cam was awesome! Haha! Woops...
You should do a series on the Fox body mustang
Can I use B303 cam in a GT 95 stock ?
Congratulations from Brazil
I loved mine
#bcammafia Great info! love the channel!
Thanks! Glad to have you onboard!
What would be your thoughts on the results of adding 1.7 rockers to the Bcam or even an Ecam?
really enjoy this series! would be interested in a video on pros/cons of egr delete as well as the proper way to do it since there is so much conflicting info out there.
Hi Nick, this one should be actually pretty easy to put together, I will set what I can do for you. Thanks for your support! - Darren
i agree on this also, more mustang videos!!!
I think the X cam was a great cam back in the day if you had the right heads and intake
It did certainly stand out in the crowd at idle, that is for sure. In Holdener's book he lists it in quite a few combinations. For very quick reference (single data point) on a GT40 build with extrude hone Dart Windsor heads, it the X303 made 341 HP peak as a comparison, that engine with a stock cam made 320, and the X303 nearly matched the Lunati 284/292 cam for average as well as peak.
I’m one of the rarities. Though I wouldn’t go B303 today (my coupe has a stage 1 Trick Flow), I did enjoy the B303 in my coupe back in 1993. My coupe went 8.58 in the 8th at 79 mph, with ONLY a B303 cam, Hurst short throw shifter, Mickey Thompson Sportsman street tires, 3:55 gears, Motorsport H-pipe and Borla mufflers (2.25). Bone stock air meter, T/B, intake and heads. The reason for the combination was I didn’t have much money and a buddy took his B cam out for an X cam and gave it to me. So, I put it in. I was lucky I guess.
Is the e cam this bad?
I own a 94 gt and decided to replace my cam when replacing my heads. I have cobra intake, alum edelbrock heads, 24 lb injectors with larger meter, cold air kit, shorty headers, 3.55 gears, cat back amongst other upgrades. After much research in 2011 I went with steeda cam #19. It's basically a crane cam. It was expensive at almost $300 in 2011 but I couldn't be happier. I have down low and high end power all through the band with no idle surge which is typical with the alpha cams in the SN95 models. Can you provide an episode on other cams like the E and hit on the idle surge issues.
any ptv issues?
also how`s the lugability with the steeda cam...say 1100-1300 rpm around town in 4 or 5th gear
Love my b303! I drift so im always in the high rpms hahaha!
Comp cam xe266hr IS THE CAM they should have came out... pull strong from idle to around 5700 rpm... on stock everything
I was considering that cam for my next build. 😄
Anything with a powerband greater than about 5800rpm is not good for the stock/cobra/gt40 long runner intakes. that makes sense. Might as well have a tight lsa to pump up the torque in that short power band.
I have the xe 264, with 165 afr heads. .030 flat top pistons . Pulls nice to 6,000 with a ported explorer intake. Idle is pretty smooth too. ,not too lumpy.
B303 sounds good and makes decent power
Do a vlog on a full led conversion for these cars,headlights,sidemarkers,sequentials, the works and how to make everything function
Do another video on the E303 CAM Since is 2nd most common of the alphabet cams!
I think I have some data to put one together, look for that in an upcoming video, and thanks for commenting!
@@GrandTouringConcepts The internet told me that the B and E cams are basically the same. However, the B is made for a manual trans and the E for an awwwwtomatic. You can run either despite which trans you have. Could be total BS though because internet...
Running a b303 in my saleen with HCI and 12lbs im putting down 505rwhp.
In my opinion the stock heads need help moving the air I would use a 218 232 on a 114 480 lift this should help create a vacuum to help pull air thru the iron heads but keep some drivability running equal number intake and exhaust on crappy heads chokes them up doesn’t give time for the exhaust to get out
in my case it was priced right being used and certainly hotter than the stock GT40P cam and I'm using Edelbrock Performer 5.0 heads so that doesn't hurt either
I have a 93 fox with the b303 gt40x heads gt40x intake 42pound injectors
1.7 rockers and a s trim blower on the dyno it made 500 at the tires but anything 1500 rpms and under it bucks pretty bad in any gear
With a tko500 373
Huh. Seems like legit info. Wonder if a E cam is better than stock?
Missed you
Glad to have some time to build another episode, thanks for the support! - Darren
i have no evidence of this, but i know a guy that used a "X" cam in his 93 which i think is a MAF car. he said it worked with no issues. either way you are right it's old tech. just get a custom grind can from Bullet Racing
Just got an 1986 5.0 Mustang, getting ready to switch to a GT40 intake. I was all sold on a B303 cam...until I saw this video. Any suggestions for a stock motor good cam.
I want to install an F303 but what else do I have to change or modify to make it work correctly help me please, you already did it, thanks
The B303 and E303 were my favorites! My buddy who has one of the cleanest LX Mustangs out there still runs his E303 cam to this day with no chance of changing it out. He also has a set of GT40X heads with a Trick Flow intake. Amazing little car!
Just think what a modern cam would do.
@@hotrodray6802 nothing! Maybe 5-10hp
What do you recommend instead of the b303
I have a sn95. 5.0 stock. Im thinking about converting it to a 347 stroker. But idk what kind of cam would work well with it. I drive the car everyday. So Drivability is my #1 concern. And ofcourse i want more HP and TQ
How about that steeds 19 cam?
Love my b303.. Its all about the sound. Its not a drag car.
The B303 has a very unique sound to it.
What's a good cam for a stock 5.0 f150 then. I was gona one in but idk how to find a good one for the truck an there is way to many videos that dont explain as well as you so if you have any advice for me plz help lol I wanna cam it but idk witch one to go with
What happened to the lada?
What cam would you recommend
I would love to give you a dead-on recommendation but, this is not a super straightforward kind of thing. Cams are specific to combinations, and honestly, anyone that gives a cam suggestion without knowing the full combo and use, is giving poor advice. That all said, I would recommend looking at a custom cam from any of the popular grinders. They will ask a series of questions about your exact combo, and intended usage. If a custom cam is outside the price range for a build, I would contact any of the big name manufacturers for their best pick, they will ask the same questions a custom grinder will to determine the best fit. One thing I must really stress when it comes to high-performance camshafts is springs and lifters. These are so often overlooked, and are somewhat expensive, but any good cam will give mediocre performance if the springs are not right, or the lifters are tired. For reference, in my experience stock valve springs were unsuitable to deal with a stock cam, (they float the valves before redline) and stock lifters began to collapse after 2 years of pushing a stock cam against a good spring. My best advice is to pick a cam matched to your combo and to not forget to consider new lifters and springs a mandatory item. Anything less and a guy is best suited to explore other power production options. Hopefully this helps. - Darren
Thanks for the advice. And I will do the research
jesse walker i had a trickflow stage 1 cam. Moved on to an N-41.
Trickflow is torquey’er
N-41 likes higher rpms and pulls harder up top
My two cents..✌🏽🤟🏽
When is the next video
What cam do you run in your GTS now Darren?
Hi Mike, the GTS still runs the stock cam, with the KB blower it still hasn't hit peak power and began to roll off by 6200 rpm. There is a bit of power left on the table, and I would like to add some more lift to the exhaust side of the pattern, but the good street manners and driveability are very hard to give up. I was looking at a Comp XE284 HR but really its not a huge priority more power is only a pulley swap away... - Darren
What’s the current power the car makes? I’m considering an NA build on my 94 cobra, but that KB blower does Peak my interest
To answer your question the car made 360 hp and 360 tq at 9 psi on a MD600 with the eddy brake loaded, this makes dynojet comparison numbers very difficult, maybe about ~ 395 rwhp dynojet (very rough estimate) with 11 psi of boost power and torque moved up to a tick past 380 on the MD600. (~418 Dynojet) there are a bunch of considerations (not all positive) with a KB which I have to break out into a separate video in the spring. - Darren
Ecam 1.7 rocker for stock motor stock heads. Bcam never liked. Xcam Good also for # cams.
Hey bro..Im 44 and I have had and STILL have ALL mustangs..All 9 which are all MANUALS.3 Fox Coupes 88,89,1991 I GOT FOR MY 16THBDAY,a 94 Gt Convertible,95 GTS,99 SALEEN S351 SC...99GT COYOTE/T56 Swap..,03&04 Cobras..03 is a Coupe and 04 is Convertible and they all vary in HP & trq from 425 to almost 1100..I am pretty knowledgeable andmay coukd help you if u have any questions..Take care man.Btw..I also have #22 1995 Crystal White REAL Cobra R but I dont really count it.. it has less than 1000 miles on it. If u want more info,pics..Hits me up man.As I said. ALL my cars are manuals and engines range from Stock Ford production blocks to Ford Racing long blocks,ROUSH all Aluminum Stroker motors and the Coyote which is VMP Supercharged along with 4 others which are also S/C..Take care..Colin
I like the steeda 18 cam better
Where can i find that supercharger or whats it called?
That is a Kenne Bell 2.2L twin screw supercharger, they are still available from Kenne Bell directly, or on the used market periodically. Expect to see a full break out video on this blower in the future. Thanks for watching and commenting! - Darren
The southern-sounding gentleman was dead on the money. $1.50 well spent.
Never tried a letter cam, as i read how “outdated” the tech was.
But my buddy has a budget 351w im helping him build and im curious to how a Z303 will perform ? 🤔
Z303???? No such cam..X303 which requires flycut or flycutting pistons..
@@connoisseurofcannabiscarsp3755 Yes it does exist, they just don't make any more. It was called cam zilla!!!(Z-cam).. Do your homework, homie!!!💯
Not a big fan of letter cams. But if I had to pick F and X
We have an upcoming video scheduled where we also compare those exact camshafts and their performance. Thanks for watching and commenting!
Dude no problem. Thanks for making 94 95 video. I have a 94 vert 5.0. I want to start a channel just about 94 95s and Honda lol IG drty_vert94
What is a good cam for my basically stock 94 5.0 with cold air intake , headers exhaust and 4:10 gears?????
Honestly if you have the stock heads and intake you are best served by a stock camshaft. The factory combo really doesn't give you much benefit with a cam swap for the price and work involved for a cam swap and nearly mandatory valve spring upgrade. Prioritize a set of heads first. - Darren
Grand Touring Concepts thanks 🙏
I'd do springs, 1.7 rollers, and advance the cam 4*. Start with 6* then the chain will stretch.
Watch the piston clearance.
Old Fox here.
The almighty b cam was crafted by Jesus himself
So I have a auto 95 gt. When it is completely cold when I start it (I let the fuel pump cycle) it runs really rough for a second then revs as it normally would warm However some times I have to tap the gas to get it to idle up and clear up. It seems as it has a slight miss fire almost barely noticeable. It idles just above 1k like a hair. And every once in a blue moon will randomly die idling or going from reverse to drive. Seems like it has more power at 1/4 to 1/2 throttle than 3/4 or full throttle. It has a new fuel filter so don't think that has anything to do with it. I'm leaning towards the distributor. Any opinions? I'd be more than happy to make a video on it if required.
Hello and thanks for your comment, as you may know it is very difficult to do diagnosis over the web, but your issue sounds very similar to my own experiences with a bad dizzy. It is not a certain conclusion but it might put you on the right track to look there. Please keep us posted and thanks for watching! -Darren
Grand Touring Concepts sure thing love the videos by the way
Grand Touring Concepts Update the car still acts the same did the distributor cap and rotor plug wires and ignition coil no change! Gonna try spark plugs next. If that don't fix it I'm going to go out on a limb and say injectors.
What i mean is that they were clogged .They only have 96k on them but the injector components are about 24 years old so thats why i rebuilt them using a rebuild kit from The Injector Shop on ebay.Also clean out your throttle body, maf sensor and iat sensor and most of all you IAC valve.All these things are not expensive to do and not vert much time consuming.
Victor G can't see your other comment but I did clean mass air flow sensor and a new air intake temp sensor. I just broke down yesterday. I am not exactly sure what happened but I'm pretty sure it's my cats. The only 2 I got left. And smoke was coming off my passenger side cat when I broke down so... Idk imma hollow them out Friday can't pay 200 to cut them out
More IVAN2104!
F cam Powah!
30 year old tech. Period.
Damn hard to beat the stock cam on the street.
Pop in 1.7 rollers and the exhaust and later heads and Explorer intake.
If you're desperate, call Comp, etc and stay conservative.
Matt King made 400 hp carbed with the stock 5.0 roller cam in his road race car.