Re: BB Rocker Arms?
[Re: CompWedgeEngines]
#182825
01/03/09 10:12 PM
01/03/09 10:12 PM
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Joined: Jul 2005
Posts: 8,647 ELYRIA,OH
blownzoom440
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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Quote:
The -1s will obviously make more power if that is in the plans later on.
isnt that what almost any racer has in mind. the heads he has now dont thay flow good?to make it worth the upgrade sounds like a big step $$ wise.
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Re: BB Rocker Arms?
[Re: AndyF]
#182828
01/04/09 10:35 AM
01/04/09 10:35 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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if you want a head that you can kind of "grow in to", the 440-1 is the way to go IMO. those big peak horsepower numbers from magazine dyno mules means absolutely nothing until it's backed up at the race track. the simple truth is that the 440-1 head will make more power at any and every point in the rpm band on the dyno AND at the race track. they've been a proven cylinder head combo for over 20 years, why reinvent the wheel. that extra power is especially useful for the bracket and class racers that need the consistent E.T. and also want the big MPH. the -1 heads can really shine in that scenario. for the guys with aftermarket blocks it's a no brainer over the EZ heads.
even though they cost a little more, they're much more cost efficient in the long run, even with the more expensive rockers. now, with that being said, if your really budget limited, the EZ head "might" be a good choice, but the 440-1 isn't really that much more money. to the statement of "blowing the bottom end out, that could happen on a stock block at 700 hp too, it just depends on the block and the combination of other factors. guy's have been succesfully making 850+ HP with -1 heads for a very long time. in any event, the Harland Sharp rockers have served us very well over the last 15+ years and cost a bit less that some of the other offerings out there. i've never personally had one break although over time, any rocker will finally give way when the spring pressures and cycles exceed a certain point. i replaced a set earlier this year that were running on -1 heads for the last 12 years with 1.625 O.D, 850 lb springs. their was no appreciable wear on the shafts or the bearings. we put the old ones on a backup combo with less spring (650 lbs.) the change was made just to be on the safe side. one other point, the HS rockers clear a 1.625 spring on -1 heads without any clearancing of the rocker. the same can't always be said for one of the other popular rocker choices available, even ones that cost more. sorry this was so long winded. i just felt it needed to be said.
Last edited by DRAM_Perf_Only; 01/04/09 11:28 AM.
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Re: BB Rocker Arms?
[Re: blownzoom440]
#182829
01/04/09 10:48 AM
01/04/09 10:48 AM
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Joined: Nov 2004
Posts: 3,547 Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,547
Syracuse,NY
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Quote:
Quote:
The -1s will obviously make more power if that is in the plans later on.
isnt that what almost any racer has in mind. the heads he has now dont thay flow good?to make it worth the upgrade sounds like a big step $$ wise.
Thats not true at all. I do many engines that are not set on kill, are not looking for maximum power from their combination. Serious bracket racers want repeatability, consistency, forgiving packages that are also capable of going hundreds and hundreds of runs. One of my customers just sold his Duster, which was a 9.00 footbrake car. Could we have made it faster? Absolutely. Did he NEED or WANT to go faster? No. The class break was at 9.00 anyhow, so faster wasnt an advantage. The hardcore bracket guys look for reliable combinations, The street/strip crowd like typically likes to weekend warrior race. Many have there own goals, that sometimes is max ET, toehr times to beat there friend, and others just want it to stay together.
The challenge of building engines for customers is that you have to use your own intuition to determine what the customer tells you he wants, and what they really need and can afford. The two are quite often different. Not flaming you here, just explaining it is not always about maxed out combos. Many other things come into play.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: BB Rocker Arms?
[Re: CompWedgeEngines]
#182830
01/04/09 11:17 AM
01/04/09 11:17 AM
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Joined: Jul 2005
Posts: 8,647 ELYRIA,OH
blownzoom440
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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Quote:
Quote:
Quote:
The -1s will obviously make more power if that is in the plans later on.
isnt that what almost any racer has in mind. the heads he has now dont thay flow good?to make it worth the upgrade sounds like a big step $$ wise.
Thats not true at all. I do many engines that are not set on kill, are not looking for maximum power from their combination. Serious bracket racers want repeatability, consistency, forgiving packages that are also capable of going hundreds and hundreds of runs. One of my customers just sold his Duster, which was a 9.00 footbrake car. Could we have made it faster? Absolutely. Did he NEED or WANT to go faster? No. The class break was at 9.00 anyhow, so faster wasnt an advantage. The hardcore bracket guys look for reliable combinations, The street/strip crowd like typically likes to weekend warrior race. Many have there own goals, that sometimes is max ET, toehr times to beat there friend, and others just want it to stay together.
The challenge of building engines for customers is that you have to use your own intuition to determine what the customer tells you he wants, and what they really need and can afford. The two are quite often different. Not flaming you here, just explaining it is not always about maxed out combos. Many other things come into play.
i understand. it is hard to judge people even when thay say thay want it a certain way things change.my brother had a motorcycle shop for over 10 yrs doing tire sales to 700HP turbo kits.i helped around any way i could and have seen life from both sides.anyways i was just trying to coax him along.
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