Skunk2 Racing Pro Stage 1+ Camshaft - B VTEC 305-05-5140
SKU: 96116480331

Skunk2 Racing Pro Stage 1+ Camshaft - B VTEC 305-05-5140

Sale price$246.60 Regular price$274.00
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Description

Skunk2 Racing Pro Stage 1+ Camshaft - B VTEC 305-05-5140Gain an extra 15 20 hp with Skunk2s Pro 1+ Camshafts, our professional line of high lift, racing camshafts for Hondas B16 B17 B18 VTEC engines. Pro 1+ Camshafts are designed to optimize mid range and top end horsepower and torque, with peak power realized at the factory redline. As a result, VTEC crossover is seamless, allowing for the broadest powerband possible. No other line of racing camshafts even comes close to Skunk2s Pro Series. What's more,

Gain an extra 15-20 hp with Skunk2’s Pro 1+ Camshafts, our professional line of high-lift, racing camshafts for Honda’s B16/ B17/ B18 VTEC engines. Pro 1+ Camshafts are designed to optimize mid-range and top-end horsepower and torque, with peak power realized at the factory redline. As a result, VTEC crossover is seamless, allowing for the broadest powerband possible. No other line of racing camshafts even comes close to Skunk2’s Pro Series. What's more, Pro 1+ Camshafts are also the perfect addition to any high-output, turbocharged engine.

 

Skunk2’s Pro Series Camshafts for Honda’s B-series engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response. Ideal for heavily modified engines, Pro Series Camshafts are manufactured from proprietary, high-quality cores, are CNC ground, and feature patent-pending profiles with unique lobe shapes and revolutionary lift, velocity, and acceleration characteristics.

 

Skunk2 camshafts deliver unparalleled power as a result of continual, extensive development and testing. By utilizing advanced manufacturing techniques and the latest computerized simulation and modeling equipment, Skunk2 camshafts are able to deliver maximum power across the entire powerband. Skunk2 designs and tests all of its camshafts in-house to ensure the highest quality and performance. Each camshaft is manufactured of newly revised chill-cast, billet camshaft blanks that have increased torsional strength, improved durability characteristics, and reduced frictional effects. All Skunk2 camshafts are ground to exact specifications using state-of-the-art CNC cam grinding machines equipped with cubic-boron grinding wheels and feature hardened, wear-resistant lobes and surfaces.

 

Skunk2’s Pro Series Camshafts also feature Fast Ramp and AMAX profile technology, which increases overall performance and results in unmatched response from idle to redline. AMAX technology simply maximizes the area under the lift curve but without compromising reliability or valvetrain stability. Skunk2’s profiles feature more duration than competitors’ at lifts above 1mm, resulting in greater efficiency and more power. And thanks to Fast Ramp, the same technology used in Formula One racing, seat timing is reduced, which results in additional cylinder pressure and more torque but without compromising valvetrain longevity.

 

Skunk2 camshafts designs are the direct result of our years of drag racing and road racing efforts. In addition to each Skunk2 project car and race vehicle, the world’s top road racing and drag racing teams have relied on Skunk2 camshafts for years.

REQUIREMENTS:
Adjustable Cam Gears
Alpha or Pro Series Valve Springs
Titanium Retainers
Cam Degreeing

 

RECOMMENDATIONS:
High Compression
Engine Management
Deep Valve Pockets
Lost Motion Assembly
Valve to Valve Clearance Inspection
Valve to Piston Clearance Inspection

 

CAM SPECS:

 

Intake Duration / Lift: 258° / .12.65mm lift @ 0.000” lash

Exhaust Duration / Lift: 260° / 11.90mm lift @ 0.000” lash 
Intake Centerline: 98° 
Exhaust Centerline: 105° 
Valve Clearance (Intake / Exhaust): .007” / .008” 
RPM Range: 1,500 - 9,000 rpm 
HP Gains: 15 - 20 hp 
Torque Gains: 18 - 22 lb-ft

 

NOTE: When using camshafts with greater than 12.6mm of lift, the following components must be used due to the stock lost motion assembly coil bind limits. Failure to do say may result in potential engine damage/ failure.

 

Skunk2 B-Series VTEC Lost Motion Assembly (P/N 312-05-0200)

Shipping Notes
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Exchange/Return Notes
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SKU: 96116480331

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4.1 ★★★★★
Based on 1166 reviews
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Steve L
Omaha, US
★★★★★ 5
Beautifully simple
Color: Black/Digital/Green
My son has worn a smaller version of this watch for a few years. After trying a different brand lately, which broke way too easily, I found this one on Amazon listed as "Used - Very Good" condition. I received what appeared to be simply an open box item, otherwise it looked brand new. This watch fits me really well, and is not clumsy on my wrist, it does not get in the way of everyday motions. For me, it's just the right size. It is also pretty intuitive to use and set the alarms, etc. It has 3 alarms, each with a different sound. It can be worn in the shower without issue, I have not tried a swimming pool, though. It feels tough and durable, as my son's has proven to be. I'm very happy with this purchase. *** Update: I spent considerable time in swimming pools recently while wearing the watch. It's still as good as when I opened it. Still 5 stars. *** Update 2: a year-and-a-half of wearing, and it is performing really well! All the buttons and words on the watch are still in very good shape and easy to read. I wear this every single day. I don't put it through the wringer every day. But, I did spend a full week sailing and snorkeling last summer in salt water with hours each day in the water. It still looks and works the same as the day I bought it.
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Reviewed in the United States on July 12, 2022
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Placeholder
Los Angeles, US
★★★★★ 5
So simple
Color: Black/Digital/Green
Love it So simple I don’t even think about it Ready to go every day Band is very comfortable
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Reviewed in the United States on May 15, 2026
A
Verified Purchase
ahkeongs
Louisville, US
★★★★★ 5
Good
Colour: Black/Silver-Tone
Like the look and functions
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Reviewed in Singapore on 12 January 2023
B
Verified Purchase
Bruno Freitas
Los Angeles, US
★★★★★ 5
Perfect for Training (Swimming) Purposes.... 5 Star for what it does as a training watch!
Color: Black/Yellow
This is already my 2nd TIMEX which I use for my swimming practices.. This one beats the older model (Timex 51931 Ironman Triathlon) with some interesting changes: 1) The larger digits on this model makes it easier to read the numbers (as some mentioned to do so when running) even when I am swimming, with a quick flick of the wrist at the turn, it's possible to see the minutes and the seconds.... The older model had smaller number, thus not making it possible to do this. 2) The navigation on this model became quite easier. It was already easy on the older model but this one included instructions on screen, such as NEXT, DONE, + or - in order to advance with your practices and training... Plus a chance to change the way you want to see the information of the your laps (Laps in the big digits and splits at the smaller one, or the oposite) A Real nice add on by TIMEX. 3) A simple but effective wrist band "clip" (the tiny piece of strap that attachs the "extra" wrist band that is left after you put the clock on) It has a piece of rubber on the inside that locks on at the wrist band and does not make it loose or even letting it go as some other watches do sometimes. This is more effective underwater I think, as it remains the way you set your wrist, as the older model I had did not quite held in place all the time. 4) Plenty of memory (100 laps is really a nice number), maybe more then most will need but, as a swimmer I use to count splits over 100m (or yards) with many laps during one training... It is quite usefull. I go easily on 10 to 15 laps of the memory in one training. And with the date feature, that reminds when you did these times, it is quite usefull to keep track on the training with a spreadsheet, for instance... (as I do !) 5) A really big START/SPLIT buttom that is great to press when I am swimming laps and have to press myself at each turn at the pool. Just perfect. Never a miss ! And the feature which was already at most of the models, of the repeat countdown, and the start of a chrono, or a repeat (what I use the most) in order race agains your average rhitym inside a certain time frame that you can set it up ! And of course the flix technology, which is very good to have it... Just flick your wrist (when you set it to ON) and it will show you at night all info that you need. It is another great watch from TIMEX and it deserves a look, specially for the price. It is worth to pay a bit more if you are like me and uses a lot of the memory for the laps on swimming pool. Maybe for runners it can be quite a lot of memory, but the price difference is worth the change, for some of the options mentioned at this review. This is a really good watch to have.. Will you definatelly like as we all are at these reviews. :-) It deserves the 5 stars rating !
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Reviewed in the United States on January 10, 2009
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Verified Purchase
William J Renfrow
Draper, US
★★★★★ 5
Great sports watch.
Color: Black/Yellow
I have to admit to being a bit of a watch fiend, having one for almost everything I do, but this is one of the most useful, yet cheaper priced items I've come to enjoy. When I work out I like as much information as I can get, so for running and biking I have a watch for that, but for swimming I needed a watch to help me count my laps and log my times. The Timex Ironman 100-lap watch does this quite well. I first got a Timex 50-Lap watch that I was able to find locally, but 50 laps is very limiting so when I found this watch for less money and a bigger face that had the lap/split time and lap number on the screen at all times I knew I had a great product. When you're finished with your laps just save your workout. The watch will then calculate some information like average lap time and best lap. I haven't completely messed with their data, but I think they average your times by throwing out the lap times that are the outliers, which is good for the accidental laps where you hit the wrong button, but it's not as great when you did a few sprint laps and they don't show up as your best time. If your best time isn't on there you can still recall it by going through each lap individually, but I think my sprint laps sometimes aren't listed as my best laps. I haven't messed with this feature much because it isn't important to me, and removing the outliers is good for looking at your actual pace. I have been able to push myself a bit more in the pool by having actual numbers to compare, which is very helpful. The other features on this watch I haven't used much, but for someone who can't afford a GPS watch and can use maps or a track this watch would be great for running or anything with laps or intervals. It has up to 9 interval timers and once finished it can either stop or repeat the sequence. It can do what's called chrono at the end, where it just switches to the chronograph feature after your timer or interval timers are finished. Overall this is a great watch and for most people who enjoy doing anything with laps look no further.
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Reviewed in the United States on July 5, 2012

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