View Poll Results: Guess the RWHP for the current setup
under 470rwhp
3
5.66%
470-480rwhp
5
9.43%
480-490rwhp
7
13.21%
490-500rwhp
5
9.43%
500-510rwhp
9
16.98%
510-520rwhp
7
13.21%
520-530rwhp
5
9.43%
over 530rwhp
12
22.64%
Voters: 53. You may not vote on this poll
Guess my RWHP!!! (poll inside)
5/24/14, 10:25 AM
#62
Burton,
If I were you I'd toss this out to experience and start over on a Dyno jet or Mustang dyno. Your result sheet is not what it should look like. The HP and torque should converge at 5252 RPM's. I've done dyno's on my previous cars in the past and have had the Mustang dyno'ed 3 different times (stock, Roush tune & Brenspeed tune) and the HP / torque always converge at the 5252 RPM point.
Here is an article of why that happens (do some web searching there's plenty of these articles out there).
http://www.roushperformance.com/blog...er-and-torque/
So don't be disappointed I think you have at lest 20 more HP on a Mustang dyno and 30 on a dynojet.
I agree dyno's are just numbers, but I personally like to know what I'm running. Everyone can say dyno's don't matter but I think anyone that comes away from a dyno with bad numbers is bummed out and anyone that walks away with good numbers is phys'ed.
If I were you I'd toss this out to experience and start over on a Dyno jet or Mustang dyno. Your result sheet is not what it should look like. The HP and torque should converge at 5252 RPM's. I've done dyno's on my previous cars in the past and have had the Mustang dyno'ed 3 different times (stock, Roush tune & Brenspeed tune) and the HP / torque always converge at the 5252 RPM point.
Here is an article of why that happens (do some web searching there's plenty of these articles out there).
http://www.roushperformance.com/blog...er-and-torque/
So don't be disappointed I think you have at lest 20 more HP on a Mustang dyno and 30 on a dynojet.
I agree dyno's are just numbers, but I personally like to know what I'm running. Everyone can say dyno's don't matter but I think anyone that comes away from a dyno with bad numbers is bummed out and anyone that walks away with good numbers is phys'ed.
5/24/14, 10:54 AM
#63
I Have No Life
Thread Starter
I know right? That's at least the good news.
Thomas, no Af ratio info. I didn't know the shop enough to trust him to have him hook up electronic info on my car. As far as Dynojet, yes... I will take her to Karl performance in Des Moines some time with Sean (mjj).
You know, after I looked at the graph more, yes, my engineering hat is coming back on. 5252 is the basic constant of where hp and tq converge. I should have known that. I am not sure what's up with that dyno place or how he set it up. That's weird.
So all the wasted "warmup" runs, plus the shoddy results, I knew I was wayyy too low in results. I know folks with the same setup as mine and not even with a full catback like I do, and they put down 520-530whp. So weird. I don't trust these results and will get it done somewhere else. Lesson learned and money wasted
Thomas, no Af ratio info. I didn't know the shop enough to trust him to have him hook up electronic info on my car. As far as Dynojet, yes... I will take her to Karl performance in Des Moines some time with Sean (mjj).
Burton, If I were you I'd toss this out to experience and start over on a Dyno jet or Mustang dyno. Your result sheet is not what it should look like. The HP and torque should converge at 5252 RPM's. I've done dyno's on my previous cars in the past and have had the Mustang dyno'ed 3 different times (stock, Roush tune & Brenspeed tune) and the HP / torque always converge at the 5252 RPM point. Here is an article of why that happens (do some web searching there's plenty of these articles out there). http://www.roushperformance.com/blog...er-and-torque/ So don't be disappointed I think you have at lest 20 more HP on a Mustang dyno and 30 on a dynojet. I agree dyno's are just numbers, but I personally like to know what I'm running. Everyone can say dyno's don't matter but I think anyone that comes away from a dyno with bad numbers is bummed out and anyone that walks away with good numbers is phys'ed.
So all the wasted "warmup" runs, plus the shoddy results, I knew I was wayyy too low in results. I know folks with the same setup as mine and not even with a full catback like I do, and they put down 520-530whp. So weird. I don't trust these results and will get it done somewhere else. Lesson learned and money wasted
5/24/14, 11:04 AM
#64
I Have No Life
Thread Starter
FYI... He also asked for the tire diameter before we started, and after a quick search, I told him 28.41". Not sure if that plays a factor in the skewed results at all or not. Mine are 305 35 20
5/24/14, 12:11 PM
#65
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Ace... I don't have a "never ending quest" for more hp. Period. And my Maggie is indeed "tuned just right", directly from Maggie for a nice conservative tune. I don't plan on making many changes, if at all. Just because I got a lower number than I expected from a weird dyno and dyno operator, doesn't mean I'll run off the end of bridge and start changing tunes, pulleys, etc.
I merely wanted to finally, for the first time ever in my limited automotive dreams, get on a dyno to see what hp and tq my car put down. I think you and a few others are reading FAR too much into this.
I got my results. Ok. It's done. Was it as high as I thought it would be? No. Ok so that means I'm going to have a never ending quest for more hp or I wanted to get dyno'd so I can beat my chest to the world? No. I could care less. The numbers were for me. And I wanted to involved buddies from this forum in a fun event. What's wrong with that?
Lol... I'm not going to start switching out my setup in hopes of getting better numbers.
I love my Maggie for its reliability, driveability, usability, and looks.
I merely wanted to finally, for the first time ever in my limited automotive dreams, get on a dyno to see what hp and tq my car put down. I think you and a few others are reading FAR too much into this.
I got my results. Ok. It's done. Was it as high as I thought it would be? No. Ok so that means I'm going to have a never ending quest for more hp or I wanted to get dyno'd so I can beat my chest to the world? No. I could care less. The numbers were for me. And I wanted to involved buddies from this forum in a fun event. What's wrong with that?
Lol... I'm not going to start switching out my setup in hopes of getting better numbers.
I love my Maggie for its reliability, driveability, usability, and looks.
The point of my post in this thread was not to get hung up on the final number, but to be aware that the Dyno is only a tool, and it's value wholly depends on the skill of those who wield it.
I thought the tone of my post was such that it would not induce a defensive response. I was incorrect. Best of luck with the remainder of the fine tuning and results.
5/24/14, 08:38 PM
#66
V6 Member
Join Date: May 31, 2013
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Burton,
If I were you I'd toss this out to experience and start over on a Dyno jet or Mustang dyno. Your result sheet is not what it should look like. The HP and torque should converge at 5252 RPM's. I've done dyno's on my previous cars in the past and have had the Mustang dyno'ed 3 different times (stock, Roush tune & Brenspeed tune) and the HP / torque always converge at the 5252 RPM point.
Here is an article of why that happens (do some web searching there's plenty of these articles out there).
http://www.roushperformance.com/blog...er-and-torque/
So don't be disappointed I think you have at lest 20 more HP on a Mustang dyno and 30 on a dynojet.
I agree dyno's are just numbers, but I personally like to know what I'm running. Everyone can say dyno's don't matter but I think anyone that comes away from a dyno with bad numbers is bummed out and anyone that walks away with good numbers is phys'ed.
If I were you I'd toss this out to experience and start over on a Dyno jet or Mustang dyno. Your result sheet is not what it should look like. The HP and torque should converge at 5252 RPM's. I've done dyno's on my previous cars in the past and have had the Mustang dyno'ed 3 different times (stock, Roush tune & Brenspeed tune) and the HP / torque always converge at the 5252 RPM point.
Here is an article of why that happens (do some web searching there's plenty of these articles out there).
http://www.roushperformance.com/blog...er-and-torque/
So don't be disappointed I think you have at lest 20 more HP on a Mustang dyno and 30 on a dynojet.
I agree dyno's are just numbers, but I personally like to know what I'm running. Everyone can say dyno's don't matter but I think anyone that comes away from a dyno with bad numbers is bummed out and anyone that walks away with good numbers is phys'ed.
5/25/14, 05:50 AM
#67
I Have No Life
Thread Starter
The y axis scale is irrelevant. The x axis (rpm) is constant for both and should converge at 5252.
5/25/14, 06:12 PM
#68
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That's kinda low numbers but safe if the tune is good.
Do you have long tubes it would help to get your HP up if you don't.
Do you have long tubes it would help to get your HP up if you don't.
Last edited by racksteris; 5/25/14 at 06:30 PM.
5/25/14, 07:23 PM
#69
I Have No Life
Thread Starter
5/25/14, 08:59 PM
#70
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5/25/14, 10:31 PM
#71
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There are 2 separate y axis. At 5252 rpm, while the lines don't converge, the values do. I drew some lines, its not the most accurate because MSpaint, but the different y axis match up at about 420tq and 420hp at 5252rpm.
7/28/14, 10:10 AM
#72
I Have No Life
Thread Starter
I'm bringing this thread back to life. I made an appointment at a DIFFERENT dyno, for this Thursday. Should be a better shop than before (knock on wood). It's a mustang dyno, and I'll get measurements for hp, tq, wide O2, AFR, etc... also he'll be using engine rpm (hooking up to coils) rather than the goofy wheel diameter calculations the other guy did (I'm guessing this is what contributed to the weird numbers).
Anyways, I "hope" my numbers are better this time, esp with my latest updates, being the smaller 3.6 pulley, intake, and JDM Engineering tune.
I won't even venture to guess how much whp I'll be making now. To be safe, I'll say 500. LOL. How's that?
Stay tuned. Y'all can still guess if you want.... but now I know to aim LOWWWWWWWWWWWWWWWWWWW lol.... then it won't hurt that bad. haha
Anyways, I "hope" my numbers are better this time, esp with my latest updates, being the smaller 3.6 pulley, intake, and JDM Engineering tune.
I won't even venture to guess how much whp I'll be making now. To be safe, I'll say 500. LOL. How's that?
Stay tuned. Y'all can still guess if you want.... but now I know to aim LOWWWWWWWWWWWWWWWWWWW lol.... then it won't hurt that bad. haha
Last edited by FromZto5; 7/28/14 at 10:15 AM.
7/28/14, 11:08 AM
#74
I Have No Life
Thread Starter
7/28/14, 11:40 AM
#75
Legacy TMS Member
Mustang dynos usually are about 10% lower than Dynojet
A local place with a Mustang dyno told me the 5.0's usually put down about 335 rwhp on their dyno.
A local Dynojet operator/tuner said the 5.0 usually puts down about 365-370 on his dyno
A local place with a Mustang dyno told me the 5.0's usually put down about 335 rwhp on their dyno.
A local Dynojet operator/tuner said the 5.0 usually puts down about 365-370 on his dyno
7/28/14, 12:29 PM
#76
I Have No Life
Thread Starter
7/28/14, 02:38 PM
#77
Roush Forum Stalker
I'll say about 515 HP and about 425 on the TQ number. Rear wheel numbers of course.
Good luck Burton!!
Good luck Burton!!
7/29/14, 07:30 AM
#78
Cobra R Member
I hope someone can chime in but why are there big differences in dyno's an the numbers they kick out? If they know they produce lower numbers why not fix it or go with a dyno that does?
i hate guessing torque so ill just give the HP numbers and im feeling spunky today so im going to go 525WHP.
i hate guessing torque so ill just give the HP numbers and im feeling spunky today so im going to go 525WHP.
7/29/14, 11:43 AM
#79
I Have No Life
Thread Starter
I hope someone can chime in but why are there big differences in dyno's an the numbers they kick out? If they know they produce lower numbers why not fix it or go with a dyno that does?
i hate guessing torque so ill just give the HP numbers and im feeling spunky today so im going to go 525WHP.
i hate guessing torque so ill just give the HP numbers and im feeling spunky today so im going to go 525WHP.
7/29/14, 11:49 AM
#80
I Have No Life
Thread Starter
So currently... my plan for Thursday:
- Get there at 8:30, cool down for an appointment at 9.
- Get strapped on the dyno (PROPERLY... apparently my previous session with the other dyno was not that ideal)
- Plan is for me to hook up my SCT, and laptop, with LiveLink and set up with the configuration I already have from JDM.
- The dyno shop will hook up everything else which includes engine rpm (through the spark plug/coil - - btw, this was NEVER done in my last dyno. I can't trust that previous accuracy.) and manifold pressure.
- Record data after the 1st run, making sure all is well and AFR's are between 11 and 11.9. Send data to JDM on the fly.
- Proceed with 2nd and 3rd runs when allowed.
- Cry (again) if #'s are too low.
What y'all think? Good plan?
- Get there at 8:30, cool down for an appointment at 9.
- Get strapped on the dyno (PROPERLY... apparently my previous session with the other dyno was not that ideal)
- Plan is for me to hook up my SCT, and laptop, with LiveLink and set up with the configuration I already have from JDM.
- The dyno shop will hook up everything else which includes engine rpm (through the spark plug/coil - - btw, this was NEVER done in my last dyno. I can't trust that previous accuracy.) and manifold pressure.
- Record data after the 1st run, making sure all is well and AFR's are between 11 and 11.9. Send data to JDM on the fly.
- Proceed with 2nd and 3rd runs when allowed.
- Cry (again) if #'s are too low.
What y'all think? Good plan?
Last edited by FromZto5; 7/29/14 at 11:54 AM.