Dynoed my engine today

Old 09-23-2007, 11:00 AM
  #1  
Blue68Camaro
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: Sep 2007
Location: Tacoma, WA
Posts: 79
Default Dynoed my engine today

OK so it was just a Virtual dyno but it dynoed at over 600HP Can this be even close? How accurite is a virtual dyno? The site says +/- 5%??

Here is what i got you tell me.

SBC 400 bored 40 over

Forged Crank/Pistons flat top

Brodix Track 1 mild port/complete port

Comp Cams:
Hydrolic Roller RPM RANGE 3000 TO 6500
PART # 12-460-8
CAM GRIND # 304HR
DURATION 304/304
DURATION @ 0.50 IS 244/244
VALVE LIFT WITH 1.5 ROCKERS IS .600/.600
LOBE SEPERATION ANGLE IS 110 DEGREES

Comp Cams Magnum Roller rockers

Brodix Dual Plane intake

Holley 4150 Pro Series 750

MSD Ignition:
6AL
Pro Billet Dist.
Blaster 2 coil

Edelbrock Gear drive

Holley Blue series fuel pump.


Well could it be close to 600HP??

I am in the middle of putting it in the car so i will know for sure in a week or 2 when i put it on the real dyno, but i am wondering.
Blue68Camaro is offline  
Old 09-23-2007, 11:11 AM
  #2  
chevguy65
Senior Member
RACING JUNKIE
 
Join Date: Sep 2005
Location: ID
Posts: 1,124
Default

I would say a virtual dyno is off by more like 10-15%.

At least that is what I have seen on other computer dyno software and been told.
chevguy65 is offline  
Old 09-23-2007, 01:27 PM
  #3  
bjuice
Administrator
RACING JUNKIE
 
bjuice's Avatar
 
Join Date: Apr 2003
Location: Greenville s.c.
Posts: 3,236
Default

as Carl said 10-15% off...but even then you still looking at 540hp..

remember what i told you about it probably capable of making 600 hp ..and no PROBLEMS MAKING 500 HP..

i did not pull these numbers out of the AIR or on a DESK top Dyno...this is real life expereience of running these 406ci motor over the past 10 years and testing them on real MOTOR DYNO'S..

as a said before my wife has a very,VERY mild 406ci I built her 3 yrs ago,out of the box steel Dart iron eagle heads, very small ( 520) flat tappet solid lift cam..off the shelf holley 750 carb....this motor dynoed 460hp at 6500 rpm..

you got a lot more 406ci then she has got trust me....

i had a very similer 406 in a 63 Bug..steel world heads ( bowl blended) and a slightly bigger cam with a 1000 silver claw carb aluminum rod motor..and it dynoed right at 620 hp...


So DO NOT be surprised at these numbers your stumbling on...

also sounds like your gonna put it on a chassis dyno..remember it will lose anywhere from 15% to 25/30% hp thru the chassis from the fly wheel


good luck.

Brian[/u]
__________________
Bjuice..

"I'M YOUR HUCKLEBERRY ! "
bjuice is offline  
Old 09-29-2007, 02:49 PM
  #4  
Blue68Camaro
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: Sep 2007
Location: Tacoma, WA
Posts: 79
Default

Well i will be happy with anything close to the 500HP mark.
Blue68Camaro is offline  
Old 09-29-2007, 03:53 PM
  #5  
margaritaman
Member
JUNIOR BUILDER
 
Join Date: Nov 2004
Location: Home of Bill and Ted
Posts: 92
Default

Is a virtual dyno anything like virtual sex?
margaritaman is offline  
Old 09-29-2007, 04:06 PM
  #6  
woodsman
Senior Member
DYNO OPERATOR
 
Join Date: Mar 2007
Location: Texas
Posts: 525
Default

Blue68Camaro what weight is your car. I just want to play around with the #'s an see what I come up with. If you don't know I can guess within 2 tenths.
woodsman is offline  
Old 09-29-2007, 04:10 PM
  #7  
chevguy65
Senior Member
RACING JUNKIE
 
Join Date: Sep 2005
Location: ID
Posts: 1,124
Default

Originally Posted by margaritaman
Is a virtual dyno anything like virtual sex?
Same only different :shock:
chevguy65 is offline  
Old 09-29-2007, 04:24 PM
  #8  
topsportsman1
Administrator
RACING JUNKIE
 
Join Date: Mar 2004
Location: Maine,USA
Posts: 1,204
Default

Originally Posted by margaritaman
Is a virtual dyno anything like virtual sex?
I wouldn't want to hold my breath on either one of them :P :P :P

Don't set yourself up for a big disapointment
__________________
There Is 1 Thing Better Than Cubic Inches,,,More Of Them
topsportsman1 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -