Why Dyno numbers aren't gospel, and can you make ~500whp cam only? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

acammer · 07-20-2018, 07:07 AM

Quote:

Originally Posted by zz430camaro

I think "cam only" means no other internal engine modififications like ported heads.

That's kind of how I would understand it. Obviously, if you do a cam, you're doing valve-springs at a minimum, and probably a few other valve-train related components if you're wise. I have GPIs pushrods, timing gear/chain, and Smith Bros. bushed trunions for peace of mind.

My real point, when I say cam only, is that the heads are completely stock, and have never even been off the car. Untouched, and a factory full thickness head gasket.

2010reddevil · 07-20-2018, 09:46 AM

I dunno, but for me, when I see "cam only" I think of just a cam and that's it. If you have supporting mods to go along with it, then for me it should read as FBO and cam. That makes more sense to me. Just saying! Hehe

lazerlemonta · 07-20-2018, 10:38 AM

Quote:

Originally Posted by 2010reddevil

I dunno, but for me, when I see "cam only" I think of just a cam and that's it. If you have supporting mods to go along with it, then for me it should read as FBO and cam. That makes more sense to me. Just saying! Hehe

Cam only is and has been always CAM with stock heads and SBE with supporting mods. You have to have supporting mods to utilize the cam (stock intake is junk for most cams, stock exhaust is going to fight a cam, you need gear etc etc). Your not going to leave you stock valve springs and do cam only are you?

Avenging Orange · 07-20-2018, 11:52 AM

Wow, I'm stoked! Actually had some people agree with me.

QUICRNU · 07-20-2018, 12:18 PM

My car Dyno'd 584rwhp/520rwtq

It is such a slow dog of a car.

lazerlemonta · 07-20-2018, 12:22 PM

Quote:

Originally Posted by QUICRNU

My car Dyno'd 584rwhp/520rwtq

It is such a slow dog of a car.

You car is one of the better working set ups ive seen! Very nice ET and MPH sir

QUICRNU · 07-20-2018, 12:26 PM

Quote:

Originally Posted by lazerlemonta

You car is one of the better working set ups ive seen! Very nice ET and MPH sir

Shhhhhh, I like when I get called out because of my Dyno chart!!

Just adding to the OP's point!

And thank you.

KW Baraka · 07-20-2018, 12:26 PM

Quote:

Originally Posted by GONIF

DYNO'S are a tool that measures torque than converts to hp .

The results are good to know and aid in tuning the car to GO FAST........

If you can get dyno runs (baseline & after-mods) in approximately the same air quality.....the dyno is good for measuring the effect the mod(s) have on power (increase/decrease/etc).

Then, of course, there's the tuning benefit to get the car running fast/correctly.

Otherwise.....the dyno is just a toy for shits and grins.....and BS braggin' rights.

KW

acammer · 07-20-2018, 12:37 PM

Quote:

Originally Posted by KW Baraka

If you can get dyno runs (baseline & after-mods) in approximately the same air quality.....the dyno is good for measuring the effect the mod(s) have on power (increase/decrease/etc).

Then, of course, there's the tuning benefit to get the car running fast/correctly.

Otherwise.....the dyno is just a toy for shits and grins.....and BS braggin' rights.

KW

Exactly! So often somebody will post "I made xxx" like they made some incredible number, or will say "I only made xxx" like they were expecting more.

The point is - unless you have the same dyno, with the same car, same conditions, comparing dyno numbers is fairly pointless. It's just a tuning tool. It is, however, great fun to watch, and even more fun to do yourself!

lazerlemonta · 07-20-2018, 12:42 PM

Quote:

Originally Posted by acammer

Exactly! So often somebody will post "I made xxx" like they made some incredible number, or will say "I only made xxx" like they were expecting more.

The point is - unless you have the same dyno, with the same car, same conditions, comparing dyno numbers is fairly pointless. It's just a tuning tool. It is, however, great fun to watch, and even more fun to do yourself!

I dyno my 1LE in 3 totally different environments and the numbers where with in a few horsepower lol I got lucky I guess. Diabold motorsports we tuned my car on his in January. I swapped injectors and stuck it on the dyno at excessive motorsports in April. Then at a car shown in July. All with in single digit numbers difference.

SquawkVFR · 07-20-2018, 01:41 PM

Quote:

Originally Posted by QUICRNU

Shhhhhh, I like when I get called out because of my Dyno chart!!

You must be one of those that have it framed and display it at car shows and cruise ins.

zz430camaro · 07-20-2018, 02:18 PM

For me, I ususally use dynojet SAE to compare dyno numbers, most dynojets are pretty close. My 1LE made 484hp and 444tq SAE and it is quick, well I think it is. I need to take it to the track with some good rear tires and see what it does. In the end its only a number but if your dyno numbers are way off it would be a concern. We all here have seen so many freakin dyno charts that we know what these things do with certain mods, for me the dyno was just for tuning and verification it was working correctly. I knew what it was going to lay down and I was within 4 hp of what I thought.

QUICRNU · 07-20-2018, 02:42 PM

Quote:

Originally Posted by SquawkVFR

You must be one of those that have it framed and display it at car shows and cruise ins.

Nah, the license plate gets enough people upset, they always ask.

Taylortoons · 07-20-2018, 02:59 PM

Maybe share one of those time slips. Hehehe

07-20-2018, 09:46 AM	#16
2010reddevil Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015 Location: Gulf Coast, TX Posts: 1,424	I dunno, but for me, when I see "cam only" I think of just a cam and that's it. If you have supporting mods to go along with it, then for me it should read as FBO and cam. That makes more sense to me. Just saying! Hehe __________________ 2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI 12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten.

07-20-2018, 11:52 AM	#18
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Wow, I'm stoked! Actually had some people agree with me. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

07-20-2018, 12:18 PM	#19
QUICRNU Drives: Z06 wannabe Join Date: Feb 2015 Location: Daytona Beach, FL Posts: 1,200	My car Dyno'd 584rwhp/520rwtq It is such a slow dog of a car. __________________ Apex Focused

07-20-2018, 02:59 PM	#28
Taylortoons Drives: 2011 2SS/RS LS3 Join Date: Apr 2017 Location: Dallas Posts: 482	Maybe share one of those time slips. Hehehe __________________ GPI Built Procharger D-1/13 PSI/Race Intercooler/SS3 Cam Kit/Kooks LTH/X- pipe/FIC 1050/E85/3.91 gears/Centerforce Dual Disc clutch/Flowmaster Outlaw/775whp/680tqSOLD

07-20-2018, 02:18 PM	#26
zz430camaro Drives: 2015 1LE Join Date: Oct 2015 Location: Cleveland, OH Posts: 1,485	For me, I ususally use dynojet SAE to compare dyno numbers, most dynojets are pretty close. My 1LE made 484hp and 444tq SAE and it is quick, well I think it is. I need to take it to the track with some good rear tires and see what it does. In the end its only a number but if your dyno numbers are way off it would be a concern. We all here have seen so many freakin dyno charts that we know what these things do with certain mods, for me the dyno was just for tuning and verification it was working correctly. I knew what it was going to lay down and I was within 4 hp of what I thought.