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Tech Talk => Engine Mechanical / Electrical => Topic started by: chrisx2 on March 07, 2018, 07:56:34 AM

Title: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 07, 2018, 07:56:34 AM
Well, it lights, now to haul it off to dyno, hopefully within 2 weeks.

I hope this YouTube link works.

https://youtu.be/qqAn5W_BaeI


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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: aquaholic72 on March 07, 2018, 11:01:10 PM
Sounds good bud! 👍👍👍

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: 96Laveycraft21Xt on March 08, 2018, 07:20:51 AM
Sounds crisp!!  Havent tried a Lunati in and Olds yet.  What aluminum heads are those?


What numbers are you hoping for to turn that AA?
Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 04:33:03 AM
ProComp. I bought bare and built them. The motor is projected to be in the 670hp/700lbft area. I'm doing an all day at the shop.


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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: 96Laveycraft21Xt on March 09, 2018, 07:27:47 AM
Best wishes to you!  Love to see olds power! wish my 442 was in that HP ballpark....  8)


It will be pretty tough to hit that number with that valve size though... Do you mind giving out the cam specs?

Is it really a 457 or is that a typo?
Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 11:00:39 AM
It's only. 010 over. Cam is 241I/249E  @.050". .600" lift. On 110 lobe sep.  11.93:1 effective compression.

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: 69kona on March 09, 2018, 12:19:36 PM
Nice build
My 472 stroker Olds made 586 hp at 5400rpm and 667hp at 5750rpm on the bottle..  Edelbrock heads . Offset ground crank and icon pistons . 10.75 to 1 comp . 
Your 670 hp is Impressive on a N/A Olds ..


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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 03:41:12 PM
All numbers above 600 I'm calling theoretical due to Desktop dyno. With that being said, we'll see. In talks with Dick & Andy Miller (personally), dealing with people atMondello (won't do that again), and many conversations with Bill Travato, I've been assured higher numbers. We'll see. I can always throw giggle gas at it.

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 03:47:55 PM
Build pics
Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 03:57:44 PM
Deck plate bored & honed, 1-4 new billet steel mains studded(align honed), Eagle 6.735" H beam rods, Diamond pistons 1.1cc relief, heads studded modified port matched Pro comps, Victor Dominator port matched with heads (both opened up). All bearing clearances have been blue printed (both mains & rods opened and equal clearances on all), screw oil restrictors, Melling HV blueprinted pump
Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 04:00:09 PM
The headers are from Hi-Tech out of Australia, only people that make custom Olds wet manifolds. 2-1/4" primaries into 4" collector.  Damn things were ungodly expensive. The cost was around 2300.00.
Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 07:35:36 PM
I had a motor similar to this with a 400 2 stage fogger pulling around 1100 in a 76 cutlass full chassised that ran high 9's but because of my naievity broke often.

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 07:36:31 PM
N2O does weird things though

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 07:53:10 PM
The cam profile will present itself with a little load .

It'll push an induced AAmag bronze impeller.

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 09, 2018, 07:57:15 PM
Now if I could find a good useable Oldsmobile DRCE, that'd be another story.

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: 69kona on March 09, 2018, 09:07:42 PM
Love to see another guy building a bad ass Oldsmobile ... 


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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: quick olds on March 10, 2018, 07:29:19 PM
Love seeing more olds making good numbers. I'll get back on mine eventually. Been slammed with work

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Title: Re: Leviathans heart beats! Ready to dyno now
Post by: chrisx2 on March 11, 2018, 06:31:52 AM
This has been going on 6+ years.


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