Another guess the Dyno Numbers

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Kammers Dyno is known for being a "hearbreaker". It is stingy and they tell me that most are disappointed. SuperFlow v3.2, J-607 Corrected values.

My guess was 415-420 hp and 450 lbs per my bench race dyno lol. Was not the best air and they do not play games with the Engine Temp. Like other Tubers and others running at 135 deg to get a number emptying the oil pan of a few quarts etc. The car will go on e85 when it is returned.
I would much rather get honest numbers from a stingy dyno, than inflated numbers from a "happy" dyno.
Which feels better, running mid twelves with a 350hp engine.....or running mid twelves with an engine you think makes 550?
 
I would much rather get honest numbers from a stingy dyno, than inflated numbers from a "happy" dyno.
Which feels better, running mid twelves with a 350hp engine.....or running mid twelves with an engine you think makes 550?

Absolutely! There are plenty of guys who boast big numbers but get their hearts broken when they go to the track.
 
Absolutely! There are plenty of guys who boast big numbers but get their hearts broken when they go to the track.
Well, a big part of that is car setup, but i definately agree, i would rather run better with less, than brag about a dyno number for a car that wont fall out of a tree.
 
I was hoping to see some air flow and bsfc numbers, but figured they may not be on the sheets since they were running the EFI.

The curve looks pretty good, and hangs on better up top than I would have expected from that cam.
 
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This guy got 225 hp baseline out of a stock low compression van 360 2bbl motor log exhausts and all.

Happy dyno?


If you look I posted the dyno chart with all the mods from this episode. His same engine with way less compression and a smaller 268 cam, got 30 more ft lbs @ 4100 and approx same hp............. maybe 375 @ 5250 rpm. They did put in big valves and a port job on open chamber stock heads I believe.
 
Well, a big part of that is car setup, but i definately agree, i would rather run better with less, than brag about a dyno number for a car that wont fall out of a tree.
Bob Kammer said his Stock Class NHRA Volare ran 11.80's with a 4.xx gear with this power band.
 
I was hoping to see some air flow and bsfc numbers, but figured they may not be on the sheets since they were running the EFI.

The curve looks pretty good, and hangs on better up top than I would have expected from that cam.
I can see what they have if you will share your thoughts! I go back in 2 days.
 
ir3333 We Salute You! :usflag:

Great Job on the Win. Let me know if you want any of the stuff. Trying to have a little fun with the birth of my new 367. What was your thought process and or experience?

Thanks,
Marion
 
If you look I posted the dyno chart with all the mods from this episode. His same engine with way less compression and a smaller 268 cam, got 30 more ft lbs @ 4100 and approx same hp............. maybe 375 @ 5250 rpm.

Yes. Noticed.

That’s why I mentioned the stock 2bbl low compression 360 van motor pulling 225 hp.

seems high? Wonder if all results are shifted to the high side.
 
I can see what they have if you will share your thoughts! I go back in 2 days.

In the beginning of your video, the side shot of the engine on the dyno........ there is no air turbine installed, so there won’t be any air flow numbers.

Depending on how they ran the fuel system for the EFI, there may or may not be any bsfc numbers.

I know it shouldn’t need to be said, but as a reminder........

Never try and compare dyno results from different dynos as “apples to apples”.
Same goes for flow numbers from different benches.
 
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I often look closely at builds and graphs posted by competent manufacturers like Mopar or Comp.
...Don't believe all the Cruz night / internet chest puffing or magazines. You have very strong realistic numbers.With the correct gears and tire I'm betting you'll be very happy!
 
That wouldn't surprise me a bit. I think an average stock eliminator car is at least a second faster than the average street car with the same power, maybe more.

To your point I found this pretty easily.
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1-10-2001, 02:38 PM
Warren J
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I remember some people from Indiana use to run a 360 in J/SA, Bob Kammer, and Jay and Pam Sanders. Don McElroy out of Mich use to build their engines. You will need to run a lot faster than 12.50, at least 8/10th's under the index. Most of the stockers run 1 second under. You will need to find someone that is good with cyl heads for mopar stockers. Camshaft selection is critical to go fast, along with a good trans and convertor. You will need to relace the rear end with a 8 1/4, less hp to turn, and less unsprung weight. You will start looking for hundrenths to be in the hunt. You have picked a good combination, it will take time to be competative. The 318 is not a good combination to run NHRA stock.
 
I often look closely at builds and graphs posted by competent manufacturers like Mopar or Comp.
...Don't believe all the Cruz night / internet chest puffing or magazines. You have very strong realistic numbers.With the correct gears and tire I'm betting you'll be very happy!
I have some new 3.55's in a 489 case.
 
I’ve never run the LAX heads on anything myself, so for me....... those were the wild card on your build.

I guess I would have expected pretty similar dyno results out of some 360 heads outfitted with 2.02’s and reworked into the 240cfm range.

I don’t know if that build is “big enough” to really exploit the LAX heads.
 
I’ve never run the LAX heads on anything myself, so for me....... those were the wild card on your build.

I guess I would have expected pretty similar dyno results out of some 360 heads outfitted with 2.02’s and reworked into the 240cfm range.

I don’t know if that build is “big enough” to really exploit the LAX heads.
Per Indy they flow 263 cfm @ .500.
 
Per Indy they flow 263 cfm @ .500.

Which was basically my point.
You don’t need heads flowing 263 to make 385hp.

That build isn’t going to show what LAX heads are capable of.

For lack of a better way of putting it...... they’re a bit “overkill” on a mild 360(IMO).
Sometimes when the heads are too much overkill, they can cost you power.
I’m saying, it doesn’t really look like they cost any power in this case.
 
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This is a good thread for the young guys who believe it's very easy to get 425 hp and 420 ft. lbs. out of a 318.
The magazine guys can, but you and I can't.
 
This is a good thread for the young guys who believe it's very easy to get 425 hp and 420 ft. lbs. out of a 318.
The magazine guys can, but you and I can't.

Maybe a oval track car on the floor all the time @ 7500 lol.

Thanks, I tried to make it a bit fun but maybe some could find later with some real objective evidence.

Love Me some Steve "Dulcheck" but when I hear him talk about a 500+hp 318 I cringe.
 
Do I get extra points for getting within 300 rpm of the peaks ? :p
 
This article was an engine we did for Mopar Muscle a few years ago, right before they got canned:
Build Your Own 455HP Pump-Gas Magnum V8 For Around $4,000!

That's my dad doing the work in the article...he really didn't want to be in the pics, but I thought it was cool to have these memories. So we typically dyno at 140 water temp and 140 oil temp to speed up the dyno testing process and save fuel...so at 170° I'd say we would lose about 20HP! And we have almost a half point more compression, about 10-12HP...a lot of people talk **** about the Thumper line of cams, but they can make power. And it's very possible that their dyno shows less power than ours or others. If your happy, that's really all that matters....well and that you got your moneys worth on the build!!
 
This is a good thread for the young guys who believe it's very easy to get 425 hp and 420 ft. lbs. out of a 318.
The magazine guys can, but you and I can't.

That's exactly right IR!
I remember, back in the 80s, one of the brand X leaning monthly publications that did a 3 month installment, featuring their favorite golden child SB.
They covered teardown to dyno. The article was full of theory and puff-phrases, and they never missed an opportunity to stroke the ego of their loyal subscribers.
On dyno day, it crapped a bone, but that's not how the article read. You see they fudged the hp numbers. It just didn't look right. Torque and HP didn't intersect at 5252 rpm! It was higher and there was a crazy lump in the hp curve.
So I got out my Radio Shack calculator. Everything was fine to 4000rpm. I found an incremental embellishment of hp.
In reality, they were 80hp shy of their hp goal.
Because they used the honest torque numbers, I was able to calculate the honest hp.
Note to the youngins... publications paperback, or internet is a sales tool.
If it were not for some honest brokers out there (Brian), we may never be able to tell truth from fiction.
 
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