Guess the dyno result.. win a prize..

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Oct 17, 2008 | 10:15 AM

#21

WYATT318MOPAR

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From: Grayson, KY 41143

547 hp 516 ft lbs...Seems reasonable. what is the compression on the engine??

Oct 17, 2008 | 10:27 AM

#22

Stang's Bane

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From: Mont Belvieu, TX

Quote:

Originally Posted by wzup1000

I had a friend with a very similar setup make 575 at the wheels... so at the flywheel, wouldnt around 700 be about right???

If he made 575 at the wheels out of a 402 with afr 205s, a sub 240 cam and a fast 90, then he was on a happy dyno. That is about a 600 FWHP set up.

But yeah, 575 rwhp should be ~ 675 fwhp though.

Oct 17, 2008 | 10:31 AM

#23

ssman00

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From: spartanburg south carolina

657hp 642tq

Oct 17, 2008 | 12:00 PM

#24

wzup1000

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From: Somewhere, TX

Quote:

Originally Posted by Stang's Bane

If he made 575 at the wheels out of a 402 with afr 205s, a sub 240 cam and a fast 90, then he was on a happy dyno. That is about a 600 FWHP set up.

But yeah, 575 rwhp should be ~ 675 fwhp though.

damn, maybe so on the happy dyno part...lol...

Oct 17, 2008 | 12:31 PM

#25

bigwindsor

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577hp / 527tq

Oct 17, 2008 | 07:34 PM

#26

Steve1969LS1

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From: Anaheim Hills, CA

And the winner is???

Hell, I don't know.. who was closest. lol

We had some electronics issues but the best pull was 561/534

Less than I was hoping but no too shabby and the torque curve was pretty nice. I will post the graph in a bit.

I also want to re-calculate my compression..

-3cc piston
66cc chamber volume heads
Stock GM gasket
4.005 bore

Where is that calculator?

Oct 17, 2008 | 09:04 PM

#27

CalSpeedPerformance

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From: Bakersfield, CA

Guessing at the piston .007 out of the hole, that puts the compression at 11.05:1

Oct 17, 2008 | 09:11 PM

#28

Haans249

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From: Fort Worth, TX

posts 9 and 13 are tied with the same deviations, at a total of 25, so they are tied!

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Oct 17, 2008 | 10:01 PM

#29

DrkPhx

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From: St. Michael, MN.

I like this one: http://www.rbracing-rsr.com/compstaticcalc.html

Oct 17, 2008 | 10:43 PM

#30

cdubbzz

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From: NJ

Quote:

Originally Posted by Haans249

posts 9 and 13 are tied with the same deviations, at a total of 25, so they are tied!

woohoo, I'll take a hot brunette w/ big *****

Oct 17, 2008 | 11:30 PM

#31

LS1-Master

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565 hp - 546 lp

Oct 17, 2008 | 11:44 PM

#32

Steve1969LS1

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From: Anaheim Hills, CA

Quote:

Originally Posted by LS1-Master

565 hp - 546 lp

Wow.. you might have won if you had posted BEFORE I gave the results..

Oct 17, 2008 | 11:45 PM

#33

Steve1969LS1

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From: Anaheim Hills, CA

Quote:

Originally Posted by cdubbzz

woohoo, I'll take a hot brunette w/ big *****

PM me your name and address...

Oct 18, 2008 | 01:34 AM

#34

litemup02

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From: Central Illinois

Quote:

Originally Posted by Steve1969LS1

Wow.. you might have won if you had posted BEFORE I gave the results..

uuhhh 561/534 is my guess then

Oct 18, 2008 | 07:43 AM

#35

LSWONGTO

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From: Ramstein AB, Germany

Nice results for a mild cam. Why did you go with the 205 heads?

Oct 18, 2008 | 05:22 PM

#36

Steve1969LS1

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From: Anaheim Hills, CA

Quote:

Originally Posted by LSWONGTO

Nice results for a mild cam. Why did you go with the 205 heads?

Because they are the heads I had.. Mamo thought they would flow fine for this combo especially since they had been worked over a bit.

Best pull was 561/534

Was hoping for more but it's better than before. Notice that the curve is up everywhere except the very top. More toque is a good thing especially for what I'm doing.

Oct 18, 2008 | 05:55 PM

#37

1FASTBIRD

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From: San jose, CA

Quote:

Originally Posted by Steve1969LS1

That is some good number there bro

Oct 19, 2008 | 12:41 PM

#38

litemup02

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From: Central Illinois

I like that Katech set up.. wish it were cheaper

Oct 19, 2008 | 02:03 PM

#39

3timeracin

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From: 81 NY support

Actually it is pretty easy to figure out a 402ci engine moves 270cfm per cylinder at 6000rpm thats 540hp @ 6000 given your heads flow 270cfm wich they do then add 3% for every point of compression over 10.1 and your 556hp within 1%. If anyone is interested ? Stan Weiss offers some great calculation pages that will get you close if you have a build going use this link http://users.erols.com/srweiss/tablehdp.htm