[DeTomaso] Engine Install Picts

[Thomas Tornblom]

GW skrev:
> HP = (RPM X Torque) / 5252    This means when RPM = 5252 HP and TQ are 
> the same. If you google Dyno graph (image) you will see all dyno graphs 
> intersect at 5252 RPM.

That is not the issue here. The issue is that max TQ and max HP are not 
normally at the same rpm, unless the torque falls drastically at that 
rpm, like when an RPM limiter kicks in.

If you look at Brents curves you see that the TQ curve is very flat, 
which means that HP is more or less proportional to RPM. When the TQ 
starts falling, the power increase with rpm starts to go down until at 
one point TQ has fallen to the point where you will have max HP, and 
anything above that results in both power and TQ falling.

The 5252 figure is a constant to correct for the torque and power units. 
If you use the metric system you will not have any such constant, all 
the units will already fit without any need for them.

Thomas

> 
> Gary
> /http://www.rc-tech.net/pantera1/index.htm/
> 
> Thomas Tornblom wrote:
>> Brent Stewart skrev:
>>  
>>> Hi Thomas,
>>> It was tested up to 6800. I don't quite understand it either, but do 
>>> take a look at the graph of HP vs TQ - make sense? comments?
>>>     
>>
>> Ah, I see there is a TQ spike at 5800, and also one at around 5200. 
>> Either a dyno fluke or possibly some resonance in the induction or 
>> exhaust that makes it spike there.
>>
>> Removing them, max TQ appears around 5600 and max HP around 6000, 
>> which sounds more normal.
>>
>> A stout motor in any case!
>>
>> Cheers,
>> Thomas
>>
>>
>>  
>>> http://www.poca.com/index.php/gallery/?g2_itemId=19634
>>>
>>> thanks,
>>> brent
>>>
>>> ------------------------------------------------------------------------
>>> *From:* Thomas Tornblom <thomas at hax.se>
>>> *To:* DeTomaso at realbig.com
>>> *Sent:* Mon, April 26, 2010 8:32:23 PM
>>> *Subject:* Re: [DeTomaso] Engine Install Picts
>>>
>>> Brent Stewart skrev:
>>>  > Well, if I must :-)
>>>  >
>>>  > Dyno shows max 571 HP @ 5800 rpm, max 517 TQ at 5800 rpm as well.
>>>
>>> Very nice!
>>>
>>> Did you stop the dyno run at 5800? I don't see how you could have max HP
>>> and max TQ at the same rpm otherwise.
>>>
>>> Cheers,
>>> Thomas
>>>
>>>  >
>>>  >
>>>  >
>>>  > OEM 351C
>>>  > SCAT 3.85 CRANKSHAFT-INTERNAL BALANCED
>>>  > SCAT H BEAM RODS
>>>  > CUSTOM ROSS PISTONS
>>>  > CUSTOM BENNETT HYDRAULIC ROLLER CAM
>>>  > FORD MOTORSPORT TIMING CHAIN
>>>  > ATI BALANCER
>>>  > ARP HEAD BOLTS
>>>  > CRANE LINK BAR HYDRAULIC ROLLER
>>>  > LIFTERS
>>>  > COMP CAMS PUSHRODS
>>>  > HARLAND sharp ROLLER ROCKERS
>>>  > CHI 228 ALUMINUM 351c HEADS
>>>  > CHI INTAKE
>>>  > MSD BILLET DISTRIBUTOR
>>>  >  > Specs from the build:
>>>  >  > Bore: 4.030
>>>  > Crank: Scat 3.850 9000 series
>>>  > Balance: internal zero
>>>  > Cam: 3018F-3039B 112
>>>  > Intake Lobe: 242 @ .050 .366 LL
>>>  > Exhaust Lobe: 250 @ .050 .363 LL
>>>  > Lobe separation: 112
>>>  > Pistons: Ross
>>>  > Rods: Scat 6.00 H beam
>>>  > Lifters: Crane link bar hydraulic
>>>  > roller
>>>  > Heads: CHI 228 3V
>>>  > Pushrods: 7.850 Com cams HD
>>>  > Rocker Arms: Harland sharp 4005
>>>  > If this doesn't work out,  I go Windsor :-)
>>>  >
>>>  >
>>>  >
>>>  >
>>>  > ________________________________
>>>  > From: "MikeLDrew at aol.com <mailto:MikeLDrew at aol.com>" 
>>> <MikeLDrew at aol.com <mailto:MikeLDrew at aol.com>>
>>>  > To: bjbstewart at yahoo.com <mailto:bjbstewart at yahoo.com>; 
>>> DeTomaso at realbig.com <mailto:DeTomaso at realbig.com>
>>>  > Sent: Mon, April 26, 2010 3:07:31 PM
>>>  > Subject: Re: [DeTomaso] Engine Install Picts
>>>  >
>>>  >
>>>  > In a message dated 4/25/10 22 04 18, bjbstewart at yahoo.com 
>>> <mailto:bjbstewart at yahoo.com> writes:
>>>  >
>>>  >
>>>  >
>>>  > Just wanted to share a few pictures - I had a few of the PCNC guys 
>>> over to help me put my new stroked Cleveland in.
>>>  >
>>>  > Brent--tell us about the engine.  Specs/dyno numbers etc.?
>>>  >
>>>  > Mike
>>>  > _______________________________________________
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