Destroying Dyno Myths... 56K Beware!

88TempoGLS · October 4th, 2009, 03:51 AM

awesome info. it should help with my build although its not even half of a 5.0

Trick Tuners · October 4th, 2009, 11:51 AM

Well i'm not a fan of copying a book to paste the info online, i will say that i have read his 4.6L on the dyno book and it totally kicks ass. Instead of posting the pages, i suggest you buy the book. Its a great book for hanging out with friends and BS'ing about cars.

McMustang5.0 · December 23rd, 2009, 12:23 PM

Will some of these numbers work for a Carb'd 5.0. If I put Synthetic oil and a advanced my timing 15* I would get 10-15 HP?

Trick Tuners · December 23rd, 2009, 12:31 PM

Originally Posted by McMustang5.0

If I put Synthetic oil and a advanced my timing 15* I would get 10-15 HP?

LOL! If you advance your timing 15* you are asking for trouble!!

dynamic_stang · April 19th, 2010, 12:05 AM

1989 5.0 gt mustang h.o. 24 lb injecters edlebrock performane manifold 70 mm, 70 mm throttle body, hi end race cam, bored out engine 30 over or so? ford racing shorty headers, full tuned exhaust.

1slo5.0 · April 19th, 2010, 12:34 PM

Originally Posted by dynamic_stang

1989 5.0 gt mustang h.o. 24 lb injecters edlebrock performane manifold 70 mm, 70 mm throttle body, hi end race cam, bored out engine 30 over or so? ford racing shorty headers, full tuned exhaust.

I guess I don't understand the question here. However, I will say that you will be in trouble with a "hi end race cam" with that close to stock engine....

tmoss · April 24th, 2010, 11:40 AM

The posted tests are only good for the specific engine combinations used. For example, they use an essentially stock engine and test a 60mm and a 65mm TB which shows the larger TB has not real gains - but only because the stock parts didn't need it. To generalize any of these tests would be a BIG mistake.

beamer814 · August 16th, 2010, 06:41 PM

anyone else suprised at the hp being high and tq numbers being so low

candcperformance · September 5th, 2010, 06:43 PM

depending on the dyno i own one a 2008 dynojet and it reads right on the money , some read low, like mustang dyno's

1slo5.0 · September 5th, 2010, 10:12 PM

Originally Posted by candcperformance

depending on the dyno i own one a 2008 dynojet and it reads right on the money , some read low, like mustang dyno's

A chassis dyno that reads right on the money? Lol!

candcperformance · September 5th, 2010, 10:34 PM

yes with the drivetrain loss it's pretty closs hell nascar uses one just like it, lol

Trick Tuners · September 6th, 2010, 12:36 PM

Originally Posted by candcperformance

depending on the dyno i own one a 2008 dynojet and it reads right on the money , some read low, like mustang dyno's

How do you know this? Remember that DJs measure actual TQ not hp, unless you have the calibrated load cell and the load control. Even then somebody is still wrong. The DJ load cell "calibration" method is crude at best. What if the MD reads the "real" power output and the DJs read high? There are also MANY variables that will effect the power measurements. IMO the only way to get "accurate" readings is on an engine dyno using a NIST calibrated load cell. These dynos out there in the performance world are "crude" tools compared to some of the stuff out there. I do not consider the output of the dyno to be dead on the money, i just want it repeatable so that i can see my tuning effects on the output. I could care less if it outputs 50hp or 5000hp, as long as its repeatable. This is a case were precision is far more important than accuracy.

My real job is in an industry where calibration are a big part of everything. We have a calibration department and all of our equipment need to be regularly calibrated to the NIST standard. If a simple tool like a pipette (small volume liquid measuring tool) is out of cal it could easily cost $100K+ in scrap material.

oldstang50 · September 29th, 2010, 04:30 PM

Wish I had this when I built my engine. Good Stuff!

skatz420 · September 30th, 2010, 09:00 PM

what is the best dyno in the NH area south?

junkman306 · December 21st, 2010, 02:10 PM

Superb thread! I'm glad someone does dyno comparisons!!!

ShadowFox · December 27th, 2010, 01:03 PM

hmmmmm

sicknotch · December 27th, 2010, 10:42 PM

very useful info
thanks!

johnGT · January 26th, 2011, 06:06 PM

I'm really surprised that 1.7 rockers made the HP worse with a little more mods but made it better in stock form. Would a hotter cam be in order to compensate for the larger rockers?

Also, I read somewhere that with the air silencer delete improved horsepower (thats obviously not a myth) but it also increased the peak power at 4800rpm rather than at 4500. This data seems to contradict that, but I have mine removed and I can say without a doubt that it definitely helped to free up some HP at the higher RPMs. Mine used to hit a wall at about 4500~ and now it pulls strong up to about 5000~. I plan on getting a gt40 upper and lower intake and a Steeda No.18 cam to free up the last 1000rpm. I'm pretty hesitant to go for the 1.7 rockers at this point though.

johnGT · January 26th, 2011, 06:07 PM

I'm really surprised that 1.7 rockers made the HP worse with a little more mods but made it better in stock form. Would a hotter cam be in order to compensate for the larger rockers?

Also, I read somewhere that with the air silencer delete improved horsepower (thats obviously not a myth) but it also increased the peak power at 4800rpm rather than at 4500. This data seems to contradict that, but I have mine removed and I can say without a doubt that it definitely helped to free up some HP at the higher RPMs. Mine used to hit a wall at about 4500~ and now it pulls strong up to about 5000~. I plan on getting a gt40 upper and lower intake and a Steeda No.18 cam to free up the last 1000rpm. I'm pretty hesitant to go for the 1.7 rockers at this point though.

MustangLaunch · February 20th, 2011, 11:47 PM

Check it out...Mustang Street Launch - Ocean City, MD

YouTube - Ford Mustang Launch (street)

October 4th, 2009, 11:51 AM	#42
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	Well i'm not a fan of copying a book to paste the info online, i will say that i have read his 4.6L on the dyno book and it totally kicks ass. Instead of posting the pages, i suggest you buy the book. Its a great book for hanging out with friends and BS'ing about cars. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

April 24th, 2010, 11:40 AM	#47
tmoss Regular Join Date: Jan 2007 Location: St Louis, Mo Posts: 382 iTrader: 0 reviews	The posted tests are only good for the specific engine combinations used. For example, they use an essentially stock engine and test a 60mm and a 65mm TB which shows the larger TB has not real gains - but only because the stock parts didn't need it. To generalize any of these tests would be a BIG mistake. __________________ 88 GT Vert 5spd, 3:73 gears, Explorer intake/65mm TB, Explorer Ps, Manley race 1.85/1.55 valves, 1.7/1.6 stud rockers, stock cam +4 degrees, MAC Jet-Hot coated shorties. 277RWHP/330RWTQ www.fastlanecars.com http://tmossporting.0catch.com/

September 29th, 2010, 04:30 PM	#53
oldstang50 Newbie Join Date: Sep 2010 Posts: 2 iTrader: 0 reviews	Excellent Information Wish I had this when I built my engine. Good Stuff!

December 21st, 2010, 02:10 PM	#55
junkman306 Newbie 1989 Mustang LX Join Date: Dec 2010 Location: Sparta, MO Posts: 17 iTrader: 1 reviews	Superb thread! I'm glad someone does dyno comparisons!!! __________________ 1989 LX- Let the 302 swap begin.

January 26th, 2011, 06:06 PM	#58
johnGT Regular 1995 Mustang GT vert Join Date: Jan 2011 Location: GA Posts: 363 iTrader: 0 reviews	I'm really surprised that 1.7 rockers made the HP worse with a little more mods but made it better in stock form. Would a hotter cam be in order to compensate for the larger rockers? Also, I read somewhere that with the air silencer delete improved horsepower (thats obviously not a myth) but it also increased the peak power at 4800rpm rather than at 4500. This data seems to contradict that, but I have mine removed and I can say without a doubt that it definitely helped to free up some HP at the higher RPMs. Mine used to hit a wall at about 4500~ and now it pulls strong up to about 5000~. I plan on getting a gt40 upper and lower intake and a Steeda No.18 cam to free up the last 1000rpm. I'm pretty hesitant to go for the 1.7 rockers at this point though. __________________ 1995 Mustang GT convertible: STOCK, AODE (B&M shift kit), 2.73 gears, red leather interior, all white exterior, appx. 400,000~ miles. 2007 Mustang GT premium. 4.6, 5-speed, 3.55 gears black on black exterior/interior. (dads car ) 70,000~ miles.

October 4th, 2009, 03:51 AM	#41
88TempoGLS Hardcore Enthusiast 2000 Ford Contour SVT somewhere in the mid 14's Join Date: Oct 2009 Location: Middletown, Pa Posts: 2,385 iTrader: 0 reviews	awesome info. it should help with my build although its not even half of a 5.0

December 23rd, 2009, 12:23 PM	#43
McMustang5.0 Banned Join Date: Oct 2009 Posts: 595 iTrader: 0 reviews	Will some of these numbers work for a Carb'd 5.0. If I put Synthetic oil and a advanced my timing 15* I would get 10-15 HP?

April 19th, 2010, 12:05 AM	#45
dynamic_stang Look Ma! My First Post! Join Date: Apr 2010 Posts: 1 iTrader: 0 reviews	1989 5.0 gt mustang h.o. 24 lb injecters edlebrock performane manifold 70 mm, 70 mm throttle body, hi end race cam, bored out engine 30 over or so? ford racing shorty headers, full tuned exhaust.

August 16th, 2010, 06:41 PM	#48
beamer814 Regular 1990, GT, 5 speed I Dont Wanna Know :( Join Date: Jun 2010 Location: Zion, IL Posts: 111 iTrader: 0 reviews	anyone else suprised at the hp being high and tq numbers being so low

September 5th, 2010, 06:43 PM	#49
candcperformance Newbie Join Date: Sep 2010 Posts: 4 iTrader: 0 reviews	depending on the dyno i own one a 2008 dynojet and it reads right on the money , some read low, like mustang dyno's

September 5th, 2010, 10:34 PM	#51
candcperformance Newbie Join Date: Sep 2010 Posts: 4 iTrader: 0 reviews	yes with the drivetrain loss it's pretty closs hell nascar uses one just like it, lol

September 30th, 2010, 09:00 PM	#54
skatz420 Newbie Join Date: Sep 2010 Posts: 5 iTrader: 0 reviews	what is the best dyno in the NH area south?

December 27th, 2010, 01:03 PM	#56
ShadowFox Newbie Join Date: Feb 2010 Posts: 16 iTrader: 0 reviews	hmmmmm

December 27th, 2010, 10:42 PM	#57
sicknotch Look Ma! My First Post! 1988 mustang gt vert n/a Join Date: Dec 2010 Location: las vegas, nevada Posts: 1 iTrader: 0 reviews	very useful info thanks!

January 26th, 2011, 06:07 PM	#59
johnGT Regular 1995 Mustang GT vert Join Date: Jan 2011 Location: GA Posts: 363 iTrader: 0 reviews	I'm really surprised that 1.7 rockers made the HP worse with a little more mods but made it better in stock form. Would a hotter cam be in order to compensate for the larger rockers? Also, I read somewhere that with the air silencer delete improved horsepower (thats obviously not a myth) but it also increased the peak power at 4800rpm rather than at 4500. This data seems to contradict that, but I have mine removed and I can say without a doubt that it definitely helped to free up some HP at the higher RPMs. Mine used to hit a wall at about 4500~ and now it pulls strong up to about 5000~. I plan on getting a gt40 upper and lower intake and a Steeda No.18 cam to free up the last 1000rpm. I'm pretty hesitant to go for the 1.7 rockers at this point though. __________________ 1995 Mustang GT convertible: STOCK, AODE (B&M shift kit), 2.73 gears, red leather interior, all white exterior, appx. 400,000~ miles. 2007 Mustang GT premium. 4.6, 5-speed, 3.55 gears black on black exterior/interior. (dads car ) 70,000~ miles.

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Destroying Dyno Myths... 56K Beware!

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