Hi all,

The selection of the cams is making me crazy. There are to many and i don't know what to do. Maybe some of u do.

Building a high rpm N/A B16A1 engine.
Specs:

CORE ----BUILD-----
*Darton Mid sleeves 84mm Big bore B16
*Cp pistons race 11,5:1 84mm B16
*Eagle H-beam rods B16

HEAD B16A1 (Ported)
*Ferrea dual valve springs endurance
*Ferrea titanium valve retainers
*Ferrea competition plus valves
*Crower adjustable cam gears
*Aebs ported intake manifold
*Dh-racing taperbore throttle body 69-75mm
*Dc-sport header 4-2-1 ceramic
*Rc fuel injectors 370cc high resistance
*Cnc'd intake wedge +...° gr

TRANSMISSION
(Superfastminis final 3,42 or Mfactory setup)

TUNING
*ECtune
*P28 chipped
Specs:

Picca:


Engine goes in this car:

 

Nice...can't help, but gotta let you know that that is...cool...

 

Have a couple of cams seen.

-Buddy club spec IV
-Brian crower stage 3

And a couple of brands donno what cam yet to choose.

-Ferrea
-Jun

 

I eliminated all the parts you listed that really don't factor in when trying to decide what cams to go with. Listing every part in the build leads to information overload for people trying to help when it's not required.

Some important information you left out was the type of head you're running and if it has been ported. You also did not tell us what your intended use for the car was either which is critical in selecting cams. That header you chose will also hold back some power as well.

There are a number of cams that would work well in your build and no one will be able to say with any amount of certainty which exact set of cams would be "best".

Some cams that I would personally suggest would be RM M22x, Skunk2 stage 2, Skunk 2 pro 1's, Jun 3's, BC 4's, Toda B's.

Depending on the abilities of your tuner and the intended use of your car, some of those cams may be better suited than others. The Pro 1's, BC 4's and Toda B's all have larger than stock primary lobes which will make more power before VTEC but can be a little tricky to tune. The other cams have stockish primary lobes which will make good power below VTEC, be easier to tune and give comparable power in VTEC. It would be safe to say that any one of the cams mentioned would make good power in that car. The rest is up to you to research and decide for yourself.

Good luck and nice build!

 

Here are some more to look at.
Jun 3
Toda B, maybe Toda C
Skunk2 Stage 2, Skunk2 Pro1, Skunk2 Pro2

Cool car.
The header you have listed will restrict your engine a ton, 10-15hp I bet.

 

junIII camshafts or toda C!!

 

toda b's for my opinion

 

Brian Crower Stage 3

 

That header is definitely a big restriction but not much else will fit under the nose of a mini. A Toda header may be the only choice that will make good power. Everything 00Redsir said is spot on, listen to him.

Remco, are you running an extended front? What subframe? Is your mini chopped? I have a 77 clubman myself that will eventually get a Honda engine. Love these cars.

 

hallo remco,
grappig om een mede-nederlander hier te zien.

sick setup btw, wanting to do something similair for my girlfriend. she digs the oldschool mini, but wants power also

cam selection for that setup is huge tough!!!

you've got to decide wich way you'll want to head.
circuit racing, drag racing or just a fun streetcar

last thing you'll want in that ultra light car on the street is torque
you'll be spinning your *** of at any legal speed, i'd say for the street a skunk2 stage 2 or a M22X will make you very happy

for anything track related (drag or circuit with big slicks or semi's) i'd say skunk2 PRO1 or M22XX

trouwens, ga je deze laten opnieuw laten keuren bij de RDW als hij de weg op gaat?

 

Thanx........

Changed original post.

Aditional information.
-B16A1 ported head
-Intended use for the car, donno yet. Trying to get as many hp out of a N/A engine as possible. (No hobby in turbo use)

Will look into that, but haven't got that much room to do something else. Can change it in the future.

Subframe: Custom Watson setup based on Rover 114gti subframe. Nose extention around 4-6cm.
Mini is chopped 17cm in the front, some more in the back to give it a hotrod look.

Keuren, nee. Apk, all-risk met taxatie rapport. En alle honda logo's van het blok af.

 

Some info found:

-Skunk2 Stage 2
Int-275 dur. / 12.4mm lift
Exh-270 dur. / 11.9mm lift
Valve Springs to be used: Skunk2 preferred but Port Flow will work as well. These cams are wild enough that you should not be using the low 8200rpms rev limit.
Description: The new top dog of the cam world. This will become the most common aftermarket (non OEM) cam in the US when they start getting distributed more. These have a very similar power band as the JUN Type 3, with less cost and better reliability (I said the “r” word). Not huge midrange but very good gains from 7000rpms all the way to 9000rpms(peak is usually around 8200rpms). These cams have stock idle characteristics, thus making them the ultimate street/strip cam. I recommend using Skunk2 cam gears with these cams.

-JUN Type 3
Int-265 dur. / 12.0mm lift
Exh-265 dur. / 11.5mm lift
Valve Springs to be used: JUN preferred but Port Flow works as well. These cams are wild enough that you should not be using the low 8200rpms rev limit.
Description: Until the Skunk2 Stage 3 this was the best high-end performing cam on the market. The JUN 3 and Toda B were the two fighting out for the top dog when it was just JUN and Toda (ahh the old days). Again, like the Skunk2 Stage 2, not huge midrange but very good gains from 7000rpms all the way to 9000rpms. These cams have stock idle characteristics, thus making them another ultimate street/strip cam. I recommend using JUN cam gears with these cams.

-Toda Spec B
Int-295 dur. / 12.0mm lift
Exh-285 dur. / 12.0mm lift
Valve Springs to be used: Toda but Port Flow will work well too.
Description: My personal pick for overall street/autocross use. These cams have the most midrange gains out of any B-Series cam when they are tuned right. They have the same midrange gains of a Toda Spec C and the same top end pull as the Toda Spec A, but a little more peak power. They are in tight competition with the Skunk2 Stage 2 and JUN Type 3. Those care are more concentrated on top-end, peak power gains. The Toda B is more concentrated on midrange power with the tradeoff of a little top-end power. Toda B’s have great gains from 4500rpms all the way to 8800rpms. Power does start to dip off quickly at around 8400rpms though. Due to the wild off-VTEC profiles, these cams do have a “bumpier” idle than stock. I recommend using Toda cam gears with these cams along with a Toda or Power Enterprises timing belt.

-Toda Spec C
Int-295 dur. / 12.5mm lift
Exh-295 dur. / 12.5mm lift
Valve Springs to be used: Toda
Description: The ultimate cam. This cam mixes the midrange power of the Toda B cam with the top end of similar to that of the JUN Type 3 and Skunk2 Stage 2. Power gains from 4500rpms all the way to 9000rpms. This is truly, the best overall cam for both midrange and top-end power. They might not give the top-end gains of the Skunk2 Stage 3 but you get more midrange and these cams can be used on the street with the right set-up and the deep pocketbook. Due to the crazy off-VTEC lobes the idle is rougher than stock, just like the Toda B cam. I recommend using Toda cam gears with these cams along with a Toda or Power Enterprises timing belt.

-Skunk2 Pro 1
Int-264 dur. / 12.6mm lift
Exh-264 dur. / 11.9mm lift

-Skunk2 Pro 2
Int-270 dur. / 12.8mm lift
Exh-276 dur. / 12.0mm lift

-Buddy club spec IV
Int-306 dur. / 12.3mm lift
Exh-302 dur. / 11.8mm lift

-Brian crower Stage 3
Int-310 dur. / 12.6mm lift
Exh-308 dur. / 12.6mm lift

 

Narrowing the cams for my setup to:

-Toda spec C
-Buddy club spec IV

Correct me if i'm wrong.

 

Cool. Watson's frame seem to work well, I just don't like the widened track.

Look into the Toda header. It is a similar design to the dc but will support much more power.

I would look into cams that have a mid-high power curve, for a traction limited mini. Skunk2 stage2, Buddy Club 4, or Toda C's would all work well I think.

 

I would go with the Toda B's vs C's in your build.

 

i agree as well. i just sold my spec B's fo 3 bills good luck finding some and great build

 

There is a bit of misleading information in this post. The Toda B's do not have the most mid range gains of any B series cam on the market. The line of Skunk2 Pro series cams have taller primary and secondary lobes than most, if not all cams on the market. Not to mention they utilize Fast Ramp and Amax profiles.
Fast Ramp technology / more area under the curve results in greater torque and horsepower at ALL rpm ranges and lower emissions.
Amax profile designed to maximize area under the lift curve without compromising reliability and valvetrain stability. The Skunk2 profile has more duration than competitors at lifts above 1mm resulting in greater efficiency and power.

The fast ramp technology is designed to reduce seat timing and build more torque and allows the engine to build additional cylinder pressure. With all this being said, my recommendation would be either Pro 1's or Pro 2's.

I know you listed the specs on the V-Tec lobes for the Toda, Buddlyclub, and Jun cams, but I would like to see the lift on the primary and secondary lobes for those cams.