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Proven Engine Combinations Engine combinations, and the resultant HP and/or E.T.s

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Old 04-26-12, 09:44PM   #1
Mr. PBody
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Default 467 dyno results

We built a 467 (455, .030" over, crank offset to 4.25) for a customer in Minnesota. He picked it up as a "family outing". Nice to meet folks face-to-face!

So, he takes his engine home and to a dyno shop near him.

Eagle 6.8" rods, Icon pistons, Comp solid roller (236@.050), KRE 85 CC d-ports (ported by Dave Wilcox), T-2, AED 950HOM, etc... Nice engine.

He wanted mid-range power and lots of torque. Not interested in high-end power. So the porting was done accordingly, peaking flow right under 280 @ .500". But well over 200 @ .300...(:-

The dyno operator refused to take it to the power peak because it was a Pontiac "over 5,200 RPM". The guy builds small blocks...

It made 507 HP @ 5,200. 559 lb. ft. @ 3,800... That was the best of 4 pulls, but all were right up there. A little tuning made the difference!

The sheets are posted over on PSP. He's applying for Bill's "1 to 1 Club".

You guys usually appreciate good power numbers, so I thought I'd share them. I suspect, if "run all the way up", it would crack 530 around 5,800. The peak torque assures a wild ride! It goes in a '69 GTO. I also thought you might like some "real world" results from something other than the cookie-cutter CNC heads out there. Those heads are capable of serious torque!

NOTE: This is not "mind-boggling power" or CVMS searching for accolades. This is simply an illustration of our product. Having come under attack in the past for not "testing" enough, and laying claim to 500-pus HP engines, when one of my customers DID "spring" for the dyno test, the results are consistent with our expectations, and more importantly, what the customer WANTED. In truth, most aren't willing to add $1K to price of their engine just to know the numbers.

Jim
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Old 04-27-12, 12:40PM   #2
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Quote:
Originally Posted by Mr. PBody View Post
In truth, most aren't willing to add $1K to price of their engine just to know the numbers.

Jim
A few passes down the track could get you numbers for far less than $1k
Just sayin
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Old 04-27-12, 02:31PM   #3
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Perfect motor for a a nice street car. Yeah allot of street motor guys are reluctant to spend the 1k to dyno their motors.
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Old 04-28-12, 02:48AM   #4
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But the good part is engine break in and some idea of A/f ratio before bolting in the car.
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Old 04-28-12, 06:09PM   #5
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It's true. Both the reluctance and the benefits. We've found a "middle ground" with the chassis dyno. In the proper hands, it only takes one base-line pull and one after the changes, to get it right, for a WHOLE LOT less money. There's a good one in Richmond, AED. There's another in Louisa County, where Steve Prudhomme has set up the machine he got from Reality Dyno (Orange, VA, Greg Miller). There's a couple engine dynos around here, too, but only one man that will put a Pontiac on his. That's Chester Houghtaling, and he knows how to tune ANYTHING! AED no longer uses theirs for customer work, just "in house" testing.

Jim
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Old 04-28-12, 07:21PM   #6
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Had a guy here i know recently run a car on a chassis dyno, the HP numbers at the tire were just under 400 and the Torque was over 400.
Ran the car at the track and it went high 13's at a best of 101 MPH, something is not right for a 3600 LB race weight car.
Needless to say this engine is now out of the car and apart.
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Old 05-01-12, 06:27PM   #7
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Expensive dyno sessions out there ! A few years ago the first time we dyno tested my current 505 the cost was $500, we made 16 pulls. At that shop, and others in the past, the fee does not do include any labor by the dyno operator toward setting up the engine on the dyno cart. Engine set-up on the cart is up to the customer, the operator only assists as necessary.
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Old 05-23-12, 09:45PM   #8
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Nice sounding engine combo. Good job as usual Mr. P Body! With the new rods and the careful building you do, everyone needs to "rethink" this "Pontiacs are limited to 5000 rpms" philosophy when doing dyno pulls on these custom rebuilt engines. Especially for the costs of putting it on the dyno.
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Old 05-24-12, 12:40PM   #9
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nice strong street combo. Love the 467 Ci combo ran it for years.
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Old 04-01-17, 04:39PM   #10
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Out most respect for the guy but after 2 emails and no replys i guess he,s to busy to build me a motor. I understand!!
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Old 04-01-17, 05:47PM   #11
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I think he's had health issues. Keep trying
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Old 04-01-17, 08:33PM   #12
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Is he still building engines?Thought he was not?Tom
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Old 04-01-17, 09:45PM   #13
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I really don't know,
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