NEW LS-R Edelbrock head?
11-29-2009, 07:50 AM
#41
How much "additional" NA power are we talking for a head like this over the less expensive current benchmark heads? I mean, if an all-pro set up is like 1/2 price or so of that, and this new set up only makes (for example) 100extra hp, is that really worth the extra $6-8K?
11-29-2009, 01:43 PM
#44
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I would like to know what they flow in the mid .5,.6,.7 range. In my opinion nobody ever built a real N/A motor out of the C-5R head to show its real potential. 500 ci small block isn't it either. Most small blocks in all out N/A dont need to be more than 390 ci cause you cant put enough head on them to feed them not even this one, i know Curtis knows that. I have a C-5R head that flows about 10 to 15 cfm less through the mid range than some of the meanst pro stock truck stuff that was ever out there so I'm curious. I like the head it looks like it has lots of potential and atleast you can get get it unlike some others 
And before anyone comments on this " 500 ci small block isn't it either." read my signature.
And before anyone comments on this " 500 ci small block isn't it either." read my signature.
11-29-2009, 03:06 PM
#45
How much "additional" NA power are we talking for a head like this over the less expensive current benchmark heads? I mean, if an all-pro set up is like 1/2 price or so of that, and this new set up only makes (for example) 100extra hp, is that really worth the extra $6-8K?
11-29-2009, 03:10 PM
#47
I would like to know what they flow in the mid .5,.6,.7 range. In my opinion nobody ever built a real N/A motor out of the C-5R head to show its real potential. 500 ci small block isn't it either. Most small blocks in all out N/A dont need to be more than 390 ci cause you cant put enough head on them to feed them not even this one, i know Curtis knows that. I have a C-5R head that flows about 10 to 15 cfm less through the mid range than some of the meanst pro stock truck stuff that was ever out there so I'm curious. I like the head it looks like it has lots of potential and atleast you can get get it unlike some others
And before anyone comments on this " 500 ci small block isn't it either." read my signature.
And before anyone comments on this " 500 ci small block isn't it either." read my signature.
11-29-2009, 04:00 PM
#48
I think what some people are looking to see is an LS race engine like we've seen from other small block racing engines such as SB2.2 , Splayed Valve , Little Chief , Glidden Fords , etc . There have been 1000hp small blocks for a while , I'd like to see a moderate displacement LS achieve that . I think it's great that we can have a 500 cube LS but I would like to see someone taking it to levels we've only seen from unrestricted race engines , the C5R was awesome but had to breath through 2 holes the size of a quarter .
11-29-2009, 04:12 PM
#49
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I think what some people are looking to see is an LS race engine like we've seen from other small block racing engines such as SB2.2 , Splayed Valve , Little Chief , Glidden Fords , etc . There have been 1000hp small blocks for a while , I'd like to see a moderate displacement LS achieve that . I think it's great that we can have a 500 cube LS but I would like to see someone taking it to levels we've only seen from unrestricted race engines , the C5R was awesome but had to breath through 2 holes the size of a quarter .
Read my signature.
SAM's 440 or whatever it is makes only 2.27
11-29-2009, 05:21 PM
#52
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Why on earth would a ps, nmca ps, or hs class car spend the $ to run ls stuff when traditional stuff is proven, reliable, and cheaper to build? Not that anything is cheap at that level.
This head may convert a few of these racers. While the hp/ci ratio thing is cute, I'll never get my 4th gen light enough to enjoy the weight brake of a 360ci motor.
This head may convert a few of these racers. While the hp/ci ratio thing is cute, I'll never get my 4th gen light enough to enjoy the weight brake of a 360ci motor.
11-29-2009, 10:16 PM
#53
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The mid numbers are going to vary depending on several things, ..
valve size, application and how the valve job is adapted to that, ..
I have one that's,
.5 - 356
.6 - 392
.7 - 418
But this is just with one of my standard flow bench valves, .. not something
made for the head, .. I'm sure there's more there.
BUT, .. just a flow number isn't everything, .. the port CSA, shape, aproach angles
to the back of the valve, bowl, chamber, .. all play into power.
I'd LOVE to see someone try and take this to the same level as a comp engine, ..
That's a bad *** C/A, ..
Curtis
valve size, application and how the valve job is adapted to that, ..
I have one that's,
.5 - 356
.6 - 392
.7 - 418
But this is just with one of my standard flow bench valves, .. not something
made for the head, .. I'm sure there's more there.
BUT, .. just a flow number isn't everything, .. the port CSA, shape, aproach angles
to the back of the valve, bowl, chamber, .. all play into power.
I'd LOVE to see someone try and take this to the same level as a comp engine, ..
That's a bad *** C/A, ..
Curtis
11-30-2009, 12:37 PM
#54
How much "additional" NA power are we talking for a head like this over the less expensive current benchmark heads? I mean, if an all-pro set up is like 1/2 price or so of that, and this new set up only makes (for example) 100extra hp, is that really worth the extra $6-8K?
So I think its waste of money, unless you're gonna use a different type of intake like a dual carb style or an ITB intake.
.
11-30-2009, 12:49 PM
#55
How much "additional" NA power are we talking for a head like this over the less expensive current benchmark heads? I mean, if an all-pro set up is like 1/2 price or so of that, and this new set up only makes (for example) 100extra hp, is that really worth the extra $6-8K?
These heads are meant for use with nothing less than a Prostock STYLE intake. Maybe a huge cast single plane, but only in a class that requires as such.
The people that have a problem with the price on heads like this really should go bog down another thread because they don't have a clue what it costs to really go fast.
11-30-2009, 06:31 PM
#56
I'm not saying that there have not been some "real" LS builds but the engine has some great features in it's original design and I believe that with some of the products available today a significantly higher level could be attained . I can't do it and I'm not saying who can or can't , I'd just like to see it done . The majority of extreme builds use forced induction as if there's no glory in achieving great results naturally aspirated . I'm blown away by Top Fuels outright power & extreme but I love seeing the competition in Pro Stock . I'm just fascinated by a high rpm naturally aspirated V8 . A properly designed intake would allow someone to use these heads from RFD to their potential . I don't think anyone considering them would use a sub standard intake , it'd be almost criminal and definitely dumb . How long before we have 500 cfm capable heads and someone using them ? I look foward to seeing these @ PRI .
12-01-2009, 09:24 AM
#57
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I think these things are awesome for N/A or nitrous car. Me personally, I will spend the money on a nice pair of twins and make 1600hp. Pro Stock and the high end Comp classes are amazing... but they are also for the person who has an infinite budget and doesnt mind spending it over and over in an effort to win.
By the way, awesome C/A you got there!!
By the way, awesome C/A you got there!!
12-02-2009, 02:46 AM
#58
The only thing in this thread I find amusing is the original post. It is kind of worded like they found something randomly searching the internet and is wondering about it. Then, you find that the person is someone who worked in designing them.
12-02-2009, 07:32 PM
#59
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We know Cary and recognize that ET makes a lot of good product. With that said, the Edelbrock LS-R is a unique product that was designed independent of anything, custom or production, on the market. We think that when you see the casting you will realize that the Edelbrock head is truly unique. Futhermore, we make the casting necessary to will support the talents of porting professionals like Curtis. We merely provide the blank canvas for them to deliver a finished product.
12-02-2009, 08:56 PM
#60
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No doubt these heads will be the real deal.
Who is gonna be the guinue pig and plop down 15k to work the bugs out of these for us?
Who is gonna be the guinue pig and plop down 15k to work the bugs out of these for us?
Last edited by JBM; 12-02-2009 at 10:39 PM.