LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

500 rwhp

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Old Mar 12, 2005 | 12:09 AM
  #76  
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Re: 500 rwhp

mindgame,

what is needed to run the raised runner head vs. standard port head? and what do "machining/tolerances" have to do with HP?
Old Mar 12, 2005 | 05:54 PM
  #77  
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Re: 500 rwhp

Originally Posted by marshall93z
mindgame,

what is needed to run the raised runner head vs. standard port head?
You'll need a raised runner intake that matches up to your RR heads. You can go with a Brodix, Dart, Edelbrock cast intake or the other way... have a custom intake built.

and what do "machining/tolerances" have to do with HP?
Everything!

Bad machining and lack of blueprinting effect every aspect of a build and poor machining will kill even the best of parts. Longevity and reliability go hand in hand with good machining. Bores that aren't round, don't seal... cranks that aren't straight are hard on bearings, rod bolts that aren't stretched to spec are down on clamping load. See my point?

Bret is absolutely right. I don't know how anyone could build engines for a living as he does and being as **** as he and I are about things. For me, this is a hobby but if time were money (and it is) I'd be better off working at a Mc Donalds than building engines for people.

-Mindgame
Old Mar 13, 2005 | 01:33 AM
  #78  
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Re: 500 rwhp

will the victor(E,junior, and super) work with RR heads?
Old Mar 13, 2005 | 09:51 AM
  #79  
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Re: 500 rwhp

Originally Posted by marshall93z
will the victor(E,junior, and super) work with RR heads?
Yes, the ones specifically designed for RR heads will.

Don't remember the exact part #s but I figure if you're really interested you can look them up as easily as I can.
If you go to AFR's site and look at the 215RR they even mention an Edelbrock PN but it's for the Victor. Edelbrock has the Super Vic now... Brodix and Dart also have RR intakes.

Good luck.

-Mindgame
Old Mar 13, 2005 | 11:38 AM
  #80  
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Re: 500 rwhp

Originally Posted by Mindgame
Yes, the ones specifically designed for RR heads will.

Don't remember the exact part #s but I figure if you're really interested you can look them up as easily as I can.
If you go to AFR's site and look at the 215RR they even mention an Edelbrock PN but it's for the Victor. Edelbrock has the Super Vic now... Brodix and Dart also have RR intakes.

Good luck.

-Mindgame
I was thumbing thru the 2005 Edelbrock catalog just yesterday:

Edelbrock SBC Super Victor for 4150 carb:

#2925 for standard ports (2.80 in^2 cross-section)
#2926 for raised port heads like E'brock Victor 23* high port CNC. (2.80 in^2 X-section)

#29785 Victor EFI (or Vic E #2978) is a strange duck; a larger plenum Jr, so it has smaller, shorter, flatter runners than the Super Vic. It has a LOT of extra aluminum in the top of the runners and weighs maybe 4-5 lbs. more than a Super Vic.

FWIW, I had always associated "Victor" in Edelbrock's marketing as a "winner" of a competition, and not necessarily with O. Victor Edelbrock, Jr.'s middle name. Duh! Typing Vic E gave me the clue. Does anyone know what the "O" stands for, BTW? Also, did you notice that he bought back all of the outstanding stock ($40mil) last year to make it a privately held company again?
Old Mar 13, 2005 | 02:12 PM
  #81  
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Re: 500 rwhp

it would be a lot easier to an LS motor. If you drop in a ls1 your going to have different issues to address(wiring harness,lid,etc) but as far as the putting down the numbers, the LS motor would have a much easier time.
Old Mar 13, 2005 | 02:38 PM
  #82  
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Re: 500 rwhp

Originally Posted by OldSStroker
I was thumbing thru the 2005 Edelbrock catalog just yesterday:

Edelbrock SBC Super Victor for 4150 carb:

#2925 for standard ports (2.80 in^2 cross-section)
#2926 for raised port heads like E'brock Victor 23* high port CNC. (2.80 in^2 X-section)

#29785 Victor EFI (or Vic E #2978) is a strange duck; a larger plenum Jr, so it has smaller, shorter, flatter runners than the Super Vic. It has a LOT of extra aluminum in the top of the runners and weighs maybe 4-5 lbs. more than a Super Vic.

FWIW, I had always associated "Victor" in Edelbrock's marketing as a "winner" of a competition, and not necessarily with O. Victor Edelbrock, Jr.'s middle name. Duh! Typing Vic E gave me the clue. Does anyone know what the "O" stands for, BTW? Also, did you notice that he bought back all of the outstanding stock ($40mil) last year to make it a privately held company again?
Maybe Orville.

I say that cause I'd just use the "O" too if it WERE Orville.

Yeah, I remember Edelbrock doing that, saying that they felt private ownership better suited their goals for the future. I can understand that to some extent.

On the Edelbrock note... they've been one of those companies I really admire and I think a lot of US companies could learn a great deal from them. Proudly made in the USA does mean something at Edelbrock!

BTW: Aren't you missing the NASCAR race?

-Mindgame

Last edited by Mindgame; Mar 13, 2005 at 02:43 PM.
Old Mar 13, 2005 | 08:22 PM
  #83  
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Re: 500 rwhp

Originally Posted by Mindgame
Maybe Orville.

I say that cause I'd just use the "O" too if it WERE Orville.

Yeah, I remember Edelbrock doing that, saying that they felt private ownership better suited their goals for the future. I can understand that to some extent.

On the Edelbrock note... they've been one of those companies I really admire and I think a lot of US companies could learn a great deal from them. Proudly made in the USA does mean something at Edelbrock!

BTW: Aren't you missing the NASCAR race?

-Mindgame
Otto would be my guess. It fits the Germanic surname, which means something like "swamp water" very loosely translated. If course, my last name means "peasant" in German.

As a manufacturer, I am always impressed by the quality of Edelbrock's aluminum castings, as is Bret who machines and welds on a lot of them. None of the other aftermarket manifolds I've seen are in the same league.

From what I know O.V.E., Jr. is a VERY astute businessman. I congratulate him and his succes. That he lost his dad to cancer at 49 and took over Edelbrock at Bret's age says a lot.

BTW, the race was in PST, so it hadn't stared yet.

It looked like about a 2200 rpm band for the Cup cars; 74-9600 or so. What's the magic number for NASCAR's gear-rule/rpm limit? Anyone?
Old Mar 13, 2005 | 09:11 PM
  #84  
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Re: 500 rwhp

Originally Posted by Mindgame
Yes, the ones specifically designed for RR heads will.

Don't remember the exact part #s but I figure if you're really interested you can look them up as easily as I can.
If you go to AFR's site and look at the 215RR they even mention an Edelbrock PN but it's for the Victor. Edelbrock has the Super Vic now... Brodix and Dart also have RR intakes.

Good luck.

-Mindgame
lol...ok, thanks!

yeah, i guess i do need to do some reasearch!


you wouldnt happen to have some footage of your car running would you? or hell, even an idle clip would work! i have always wondered what it sounds/looks like...
Old Mar 13, 2005 | 10:12 PM
  #85  
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Re: 500 rwhp

Originally Posted by OldSStroker
Edelbrock SBC Super Victor for 4150 carb:

#2925 for standard ports (2.80 in^2 cross-section)
#2926 for raised port heads like E'brock Victor 23* high port CNC. (2.80 in^2 X-section)

#29785 Victor EFI (or Vic E #2978) is a strange duck; a larger plenum Jr, so it has smaller, shorter, flatter runners than the Super Vic. It has a LOT of extra aluminum in the top of the runners and weighs maybe 4-5 lbs. more than a Super Vic.
The Victor E/EFI is about 25lbs bare.... Needs lots more porting work than the other single planes Edelbrock offers. Only thing I see it having as an advantage is the small runners for matching to small heads and a large pleanum. I'm sure guys like Joe O can attest to not having a huge amount of pleanum volume in high RPM stroker EFI motors.

I like the Super Vics much better when they are converted to EFI. I just weighed one at the shop, 16 1/2 lbs when you care to take the things off that need to be taken off for a LT1. 9 lbs less on top of the motor is good to me. That cross section is pretty good for a stroker street motor. I've epoxied some up to reduce the cross section for some midrange gains, but for a 7,000rpm or higher 383/396 they are a really good intake. Also the longer runners are about optimum here too.


Originally Posted by Mindgame
Bret is absolutely right. I don't know how anyone could build engines for a living as he does and being as **** as he and I are about things. For me, this is a hobby but if time were money (and it is) I'd be better off working at a Mc Donalds than building engines for people.
Tell me about it. Time is money and I always figure on a assembly I get about $2 an hour when it's all said and done.

Bret

Last edited by SStrokerAce; Mar 14, 2005 at 12:43 AM.
Old Mar 13, 2005 | 11:21 PM
  #86  
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Re: 500 rwhp

Originally Posted by SStrokerAce
Time is money and I always figure on a assembly I get about $2 an hour when it's all said and done.

Bret

Bret
damn that!!

which of the mentioned edelbrocks would be the best on a "hot" street 355?
Old Mar 14, 2005 | 12:44 AM
  #87  
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Re: 500 rwhp

I use the Super Vic on almost everything. I've always had good results with it.

Bret
Old Mar 14, 2005 | 03:16 AM
  #88  
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Re: 500 rwhp

Originally Posted by SStrokerAce
The Victor E/EFI is about 25lbs bare.... I like the Super Vics much better when they are converted to EFI. I just weighed one at the shop, 16 1/2 lbs when you care to take the things off that need to be taken off for a LT1.
I don't suppose you have the weight of the stock LT1 manifold handy for reference, would ya?
Old Mar 14, 2005 | 06:20 AM
  #89  
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Re: 500 rwhp

I've noticed a lot of posts in this thread claiming that there is some need for LS1 heads or massive displacement in order to hit this power number... here's a bit of food for thought. In the early 90's, a well-known F-body shop was cranking out LT1 race motors pushing 480 rwhp out of 355 ci with ported stock 23 degree castings.

I wasn't privy to additional specifics so I can't give you a magic formula, but I'm going to guess it was dry sump'ed, solid roller and a single plane intake. The point being that if you have a bulging pocket book and do some digging around for a head porter who's done race circuit stuff, you can make some downright terrifying numbers come out of a motor with stock stroke.


Last edited by trax; Mar 14, 2005 at 06:22 AM.
Old Mar 14, 2005 | 12:31 PM
  #90  
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Re: 500 rwhp

Jon,

I think a stock one can tip the scales at 25lbs and i've lightened them down to 13-14lbs.

Trax,

I think it can be done on a 355 as well too. With all the same things you mentioned except the dry sump.

Bret



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