[DeTomaso] Engine Choices

[Sean Korb]

Has anyone built variable valve timing into a Cleveland?  I imagine it
wouldn't be too hard, I just don't want to be the first.  I think a
looser timing chain with an actuator powered by oil pressure on one
side and a tensioner/guide on the other side.  If using an EFI
computer anyway you can build a daughter board to control it based on
timing and load.

It could solve my need for speed vs. my need for comfort at low speed.
I just bought a 18" mill drill, maybe I have a new project ;)

sean

On Mon, Jul 30, 2012 at 10:09 AM, Corey Price <coreyjprice at gmail.com> wrote:
> Yes, this question is circling in my mind.  I have considered many different things.  The current favorite is a 351w 9.2 deck Boss block with Trick Flow Cleveland 2V heads and a Trick Flow Track Heat 4 bbl intake (verified with TFS that it can be milled to fit a 9.2 deck Windsor block).  Stroked to over 400 cubes with no oiling issues, readily available Windsor parts, Cleveland heads, off-the-shelf headers, etc.
>
> The other favorite is a Coyote.  You can build them to 500 hp by just porting the heads, new cams and phaser limiters, and a Boss 302 intake.  Great power under the curve.  7000 RPM is no sweat.  The Boss version is verified stable to 8400 RPM but the computer apparently isn't fast enough to go much above 7500 RPM.  The Cobra Jet version apparently uses a different crank wheel with less teeth to go up to 8100 RPM.
>
> Gary, you need to drive a new Mustang GT.  The variable cam stuff makes that Coyote perform like a much bigger engine down low.  Pick a gear, and there's power available.  No, it's not 400 lb-ft at 2000 RPM, but it's not bad at all.
>
> The variable valve stuff can make the engines sound different, too.
>
>
>
> On Jul 30, 2012, at 7:12 AM, gow2 at rc-tech.net wrote:
>
>> I always think of the Pantera as an unrefined brute. I can't get my head
>> around a Pantera with a more modern V8. It's like when I see a 32 Ford
>> with an LS engine it begs the question why? It's kind of like water and
>> oil.
>>
>> I am a fan of cubic inches and the tq that comes with it. Cubic inches
>> allow you to make power at lower RPM's. This is great or many reasons.
>>
>> What good is a small engine which makes 400hp at 8,000 rpm but 150hp at
>> 4,000 rpm? It may be competitive for it's class and size at a large oval
>> but miserable to drive.
>>
>> Making power at lower RPM increases longevity of an engine as well.
>>
>> Common knowledge I am putting a Ford 400 in mine; been working on it way
>> to long. Re inventing the wheel at every corner. Everyone works a problem
>> with an angle; here is mine.
>>
>> The 400 has much in common with the Cleveland. It is the same bore spacing
>> which means it does not push the ZF back like the FE's. 400 stroked 434 or
>> cubes. Different bell housing and different engine mount on one side. You
>> would need probably need to build custom headers (although I have built
>> darn near everything on this car a little different).
>>
>> With aluminum heads weight is about the same as a Cleveland. Engine is a
>> mild build which is intentional for durability and valve health. High RPM
>> engines come with valve maintenance.
>>
>> Dino-ed at 500hp, 534lbs tq. The engine developed 434lbs of Tq at 2000rpm.
>> While that is not a monster by todays standards keep in mind the engine
>> has 434lbs of tq at 2000rpm where a mouse motor would not be making any
>> power to much higher RPM's.
>>
>> Not a exact bolt in replacement but not overly complicated to swap either:
>>
>> This is pictures from running the engine this weekend:
>>
>>
>> http://www.rc-tech.net/cars2/panttransam/434web.jpg
>> Gary
>>
>>
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-- 
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless.  They can only give you answers." -P. Picasso