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Author Topic: Yosh, Mega's, Webb's or Brock's cams  (Read 6474 times)

Offline 2fast4ubusa

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Yosh, Mega's, Webb's or Brock's cams
« on: May 28, 2005, 08:18:29 PM »
I've searched every cam post to no avail and I'm hoping you guys can assist me. I have a 2000 Busa with BDE, small box, PAIR removal, PCII w/ Brocks map. I am currently looking to upgrade my stock cams with drop in cams.  Which would be the best option for horsepower increase and what would be the cam timing and degree for them.  I do not drag race just aggressive sport riding.
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2000 Blue/Silver Busa, BDE Gen III titanium exh, PCII, MC 385 cams,air box mod, ram air seals, billet short stacks, stock filter, PAIR removal, Muzzy fan, 16/42 sprockets, EK ZZZ chain, RC Triton wheels, ceramic wheel bearings, Michelin Pilot Power

Offline The Olde King

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Yosh, Mega's, Webb's or Brock's cams
« Reply #1 on: May 28, 2005, 08:34:43 PM »
.385/252 Megacycles on both sides. 104/106 - 105/107 lobe centers.
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Offline SLOWBUSA

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Yosh, Mega's, Webb's or Brock's cams
« Reply #2 on: May 28, 2005, 08:53:45 PM »
TMH made 189hp with 385's, small box, and pipe. :wink:
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Offline BUDDY

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Yosh, Mega's, Webb's or Brock's cams
« Reply #3 on: May 28, 2005, 10:14:16 PM »
385/252 IS TOO MUCH DURATION FOR THE EXHAUST SIDE....

IVE HAD THE CAMS AND WENT BACK TO YOSH .. PICKED UP POWER..

RUN THE 385/252 ON THE INT.. AND BROCKS SMALL EXH CAM..

THATS THE COMBO I AM GOING TO TRY THIS WINTER..
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BUDDY

Offline The Olde King

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Yosh, Mega's, Webb's or Brock's cams
« Reply #4 on: May 29, 2005, 05:46:49 AM »
Buddy, what's the duration of Brock's exhaust cam you refer to?
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Offline DarkFalcon

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Yosh, Mega's, Webb's or Brock's cams
« Reply #5 on: May 29, 2005, 06:23:43 AM »
Brock's exhaust cam is made by Web and is remarkable similar to the stock intake cam in terms of lift and duration. I agree with Buddy in saying the .385/252 is simply too much cam for the exhaust side particularly on a mild stock bore. If the motor spun to 13K, it could be a different story.
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Offline BUDDY

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Yosh, Mega's, Webb's or Brock's cams
« Reply #6 on: May 29, 2005, 03:45:42 PM »
BROCKS SMALL EXH IS .348 LIFT / 235 DUR. AT .050

 IT IS VERY SIMILAR .. I JUST DONT LIKE HOW THE STOCK INTAKE ON THE EXH SIDE DOES NOT RIDE RIGHT.. I KNOW THERE HAS BEEN ALOT OF PEOPLE RUN THEM LIKE THAT FOR A LONG TIME .. I JUST WANT TO BE SAFE..
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BUDDY

Offline DarkFalcon

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Yosh, Mega's, Webb's or Brock's cams
« Reply #7 on: May 29, 2005, 04:21:31 PM »
In comparing grinds measured at different specs, you can add 5 degrees to a .05 and get close to a .04 (1mm). So in the above, it would turn out to be 240 degrees @ .04 which is the duration of a stock intake.
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Offline gazza414

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Yosh, Mega's, Webb's or Brock's cams
« Reply #8 on: May 29, 2005, 04:50:19 PM »
Or maybe run a Web 378 Inlet with  a stock inlet on the Exhaust with higher than std CR? and extended ECU?
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Offline mike45

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Yosh, Mega's, Webb's or Brock's cams
« Reply #9 on: May 29, 2005, 07:47:32 PM »
Quote from: gazza414
Or maybe run a Web 378 Inlet with  a stock inlet on the Exhaust with higher than std CR? and extended ECU?
How about the way the intake cam runs on the exhaust side. It has to be different. Nobody talks about that(at least recently) :lol: I like those Yosh for sure with mild motors. :wink:
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Offline SLOWBUSA

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Yosh, Mega's, Webb's or Brock's cams
« Reply #10 on: May 29, 2005, 08:26:51 PM »
TMH talks about the negatives of the intake on exhaust mod whenever it is discussed. It is a cheap mod and makes pretty good power.
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Offline FASBUS

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Yosh, Mega's, Webb's or Brock's cams
« Reply #11 on: May 30, 2005, 01:24:32 PM »
Quote from: DarkFalcon
Brock's exhaust cam is made by Web and is remarkable similar to the stock intake cam in terms of lift and duration. I agree with Buddy in saying the .385/252 is simply too much cam for the exhaust side particularly on a mild stock bore. If the motor spun to 13K, it could be a different story.

 TRUE...DONT FORGET IF YOU USE LARGE  LIFT/DURATION CAMS EVEN W/LARGE BORE YOU STILL NEED A HEAD TO COMPLIMENT IT OR POWER WILL STILL FALL OFF W/REVS.        Caps :oops:
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Offline DarkFalcon

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Yosh, Mega's, Webb's or Brock's cams
« Reply #12 on: May 30, 2005, 07:09:46 PM »
True enough. On the other hand, a good head with smaller cams can outperform a marginal head with bigger cams. I geuss you really have to have a handle on the flow characteristics of the head and engine requirements to make wise/informed decisions on camshafts.
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Offline gazza414

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Yosh, Mega's, Webb's or Brock's cams
« Reply #13 on: May 30, 2005, 09:32:14 PM »
:thumb: thanks
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Offline 2fast4ubusa

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And the final choice is
« Reply #14 on: May 30, 2005, 10:10:12 PM »
Thanks for all the great input....I think it looks like the Yoshi's...Anyone know where to get a good deal on them
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2000 Blue/Silver Busa, BDE Gen III titanium exh, PCII, MC 385 cams,air box mod, ram air seals, billet short stacks, stock filter, PAIR removal, Muzzy fan, 16/42 sprockets, EK ZZZ chain, RC Triton wheels, ceramic wheel bearings, Michelin Pilot Power

Offline FASBUS

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Yosh, Mega's, Webb's or Brock's cams
« Reply #15 on: May 31, 2005, 08:08:32 AM »
Quote from: DarkFalcon
True enough. On the other hand, a good head with smaller cams can outperform a marginal head with bigger cams. I geuss you really have to have a handle on the flow characteristics of the head and engine requirements to make wise/informed decisions on camshafts.

 Yep...combinations are important :thumb:
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Offline The Olde King

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Yosh, Mega's, Webb's or Brock's cams
« Reply #16 on: June 02, 2005, 11:47:16 PM »
Spaz, is that intake duration less than 250 degrees?
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THEMOTORHEAD

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Yosh, Mega's, Webb's or Brock's cams
« Reply #17 on: June 04, 2005, 07:28:41 AM »
Quote from: BUDDY
385/252 IS TOO MUCH DURATION FOR THE EXHAUST SIDE....

IVE HAD THE CAMS AND WENT BACK TO YOSH .. PICKED UP POWER..

RUN THE 385/252 ON THE INT.. AND BROCKS SMALL EXH CAM..

THATS THE COMBO I AM GOING TO TRY THIS WINTER..
YA YOU HAD A STOCK HEAD TOO :wink:
AND ALWAYS SEEMED A LIL WEEK  :?
AND SOMETHING WRONG  :(
REMEMBER ONCE YOU SUBTRACT 008-.010 CLEARANCE ON THE EXH THERE NOT AS MUCH DURATIONMANY CUSTOMES WENT 880S 890S WEIGHING 175 - 210# RIDERS
BETWEN 157 AND 161 MPH WITH THAT SETUP
ID SAY DO THE HEAD IF YER DOIN BIGGER CAMS FOR FULL BENEFIT
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Offline SLOWBUSA

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Yosh, Mega's, Webb's or Brock's cams
« Reply #18 on: June 04, 2005, 01:37:24 PM »
Anyone tested the HP gain of a good street ported head? Just the HP with the head and no other parts added at the time. I usually hear of head and cams increase or head and pistons. :?
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Offline BUDDY

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Yosh, Mega's, Webb's or Brock's cams
« Reply #19 on: June 04, 2005, 10:59:42 PM »
the head is now ported with .010 off
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BUDDY

THEMOTORHEAD

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Yosh, Mega's, Webb's or Brock's cams
« Reply #20 on: June 09, 2005, 08:40:31 PM »
that should put ya in the 880-890  range at 158-161 mph :wink:
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Offline gnd111

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Yosh, Mega's, Webb's or Brock's cams
« Reply #21 on: June 14, 2005, 09:47:49 PM »
DarkFalcon...  My MTC 1397 is advertised at 13.5 to 1...

Should i still go small on the exhaust cam???
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