Desk top Dyno Who uses it and believes it - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dean23 · 11-08-2004, 09:46 PM

who uses desktop dyno and do they believe the numbers

Super Duck · 11-08-2004, 10:28 PM

I have used it and also have seen articals about real motors that were dynoed with both. they are as advatised with in 5%

junkyardjohn · 11-08-2004, 10:37 PM

THEY ARE FANTASTIC TOOLS..... I ONCE BUILT A 2300 H/P NATURELY ASPIRATED SMALL BLOCK CHEVY, THAT RAN ON PUMP GAS, ON A FRIENDS DESK TOP DYNO.

JOHN

rin68 · 11-08-2004, 11:25 PM

it's a good tool for relative comparisons, getting an idea of how much gain could be realized from a change. DD tends to be optimistic in my experience, it assumes everything is set up perfectly (ignition, fuel curve, etc.) Also, good cylinder head flow data is essential for accurate results. just like any computer program it's only as good as the data put into it "garbage in, garbage out"

pissonNOS · 11-08-2004, 11:26 PM

Deleted by moderator.

DO NOT ASK FOR ILLEGAL SOFTWARE COPYING ON THIS BOARD!

jhwkns · 11-08-2004, 11:38 PM

How does it work? ... Does my computer race yours?

Brainchild · 11-08-2004, 11:42 PM

I have a copy of it,I use it some,but find it really making me wanna go shopping,so I try to stay away from it:p

It's a good tool though.Kinda hard to get the hang of.

LONGHAIR · 11-09-2004, 07:31 AM

pissonNOS............That's illegal, it can get you a temporary ban. It just happend to a few others.......

inline6Bill · 11-10-2004, 10:52 PM

The Desktop Dyno is not as accurate as it could be; it does not allow you to design the exhaust headers, which has a TREMENDOUS effect on horsepower and torque output, and does not allow you to input head flow numbers. For the price, it does an average job.

cableguy0 · 11-10-2004, 11:23 PM

desktop dyno in my experience is off one way or the other every time there are better programs available they just arent on the mainstream market. i have one used by engine builders which keith black had a hand in putting together.it is damn accurate. been within 5 horsepower on every motor that was ran through it compared to actual dyno number so i trust it and like was mentioned the info that comes out is only as good as whats put in. but ya gotta take dyno numbers with a grain of salt. dyno numbers are great for bragging but thats about it. dyno rooms are normally climate controlled with perfect atmostpheric conditions and stuff never seen in the real world.

lukecp · 11-11-2004, 01:47 AM

inline6bill: You can enter your own head flow numbers, in DD2000 at least.

I bought it a few years ago to play with....fun program, but not accurate IMO. The low end tourqe seems pretty far exaggerated. But it does provide a nice program to select cams and heads, and is kinda fun to use. I wouldn't trust it as very accurate though.

View Poll Results: What Do you think of desktop dyno
Swear by it	2	7.41%
Swear about it	7	25.93%
never tried	10	37.04%
close but not perfect	8	29.63%
Voters: 27. You may not vote on this poll

11-08-2004, 09:46 PM	#1
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	Desk top Dyno Who uses it and believes it who uses desktop dyno and do they believe the numbers __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

11-08-2004, 10:28 PM	#2
Super Duck Chevy Nuttttt Join Date: Sep 2004 Location: Santa Maria Ca. Posts: 568	desk top dyno I have used it and also have seen articals about real motors that were dynoed with both. they are as advatised with in 5% __________________ 67' Chev swb step side 69' SS elky 03' Chev ext cab 4X4 hey who lernt me to spell is there anything else?

11-08-2004, 10:37 PM	#3
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	THEY ARE FANTASTIC TOOLS..... I ONCE BUILT A 2300 H/P NATURELY ASPIRATED SMALL BLOCK CHEVY, THAT RAN ON PUMP GAS, ON A FRIENDS DESK TOP DYNO. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

11-08-2004, 11:25 PM	#4
rin68 Senior Member Join Date: Mar 2000 Location: East Peoria, IL Posts: 600	it's a good tool for relative comparisons, getting an idea of how much gain could be realized from a change. DD tends to be optimistic in my experience, it assumes everything is set up perfectly (ignition, fuel curve, etc.) Also, good cylinder head flow data is essential for accurate results. just like any computer program it's only as good as the data put into it "garbage in, garbage out" __________________ 1968 C10 - 383, non-stop project 1969 Camaro - 327, bone stock family heirloom...soon to be LS/T56, Ridetech, all the goodies

11-08-2004, 11:26 PM	#5
pissonNOS senior member Join Date: Feb 2003 Location: fort macleod alberta Posts: 2,770	Deleted by moderator. DO NOT ASK FOR ILLEGAL SOFTWARE COPYING ON THIS BOARD! __________________ 69 GMC bagged Last edited by Tx Firefighter; 11-11-2004 at 08:25 AM.

11-08-2004, 11:38 PM	#6
jhwkns Registered Cruiser Join Date: May 2002 Location: Las Vegas NV Posts: 2,230	How does it work? ... Does my computer race yours? __________________ I intend to live forever. So far, so good.

11-08-2004, 11:42 PM	#7
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	I have a copy of it,I use it some,but find it really making me wanna go shopping,so I try to stay away from it:p It's a good tool though.Kinda hard to get the hang of. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

11-09-2004, 07:31 AM	#8
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	pissonNOS............That's illegal, it can get you a temporary ban. It just happend to a few others.......

11-10-2004, 10:52 PM	#9
inline6Bill A classic GM kinda guy Join Date: Mar 2004 Location: Phoenix, Arizona Posts: 296	The Desktop Dyno is not as accurate as it could be; it does not allow you to design the exhaust headers, which has a TREMENDOUS effect on horsepower and torque output, and does not allow you to input head flow numbers. For the price, it does an average job. __________________ Old school rap music: a dual exhausted GM 6 with no mufflers. "If you can find a better vehicle, buy it" Lee Iacocca, Chrysler commercials of the '80s. "I did. They are called Classic GM pickups !!!"

11-10-2004, 11:23 PM	#10
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	desktop dyno in my experience is off one way or the other every time there are better programs available they just arent on the mainstream market. i have one used by engine builders which keith black had a hand in putting together.it is damn accurate. been within 5 horsepower on every motor that was ran through it compared to actual dyno number so i trust it and like was mentioned the info that comes out is only as good as whats put in. but ya gotta take dyno numbers with a grain of salt. dyno numbers are great for bragging but thats about it. dyno rooms are normally climate controlled with perfect atmostpheric conditions and stuff never seen in the real world. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

11-11-2004, 01:47 AM	#11
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	inline6bill: You can enter your own head flow numbers, in DD2000 at least. I bought it a few years ago to play with....fun program, but not accurate IMO. The low end tourqe seems pretty far exaggerated. But it does provide a nice program to select cams and heads, and is kinda fun to use. I wouldn't trust it as very accurate though. __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg



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