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View Poll Results: Horse Power at Crank
800 - 825 Horse Power 0 0%
826 - 850 Horse Power 1 16.67%
851 - 875 Horse Power 0 0%
876 - 900 Horse Power 0 0%
901 - 925 Horse Power 1 16.67%
926 - 950 Horse Power 1 16.67%
951 - 975 Horse Power 0 0%
976 - 1000 Horse Power 1 16.67%
1000+ Horse Power 1 16.67%
Good forbid - Engine Failure... 1 16.67%
Voters: 6. You may not vote on this poll

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Old 09-25-2021, 12:37 PM   #225
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Originally Posted by FasNuf View Post
Great numbers for only pump gas Vic. Sounds real nice.
Thanks Bro, I will running the same fuel for the 427ci engine. Think I will use this pump from Magna for my bypass system, I will set it up to activate at 5psi boost and if fuel pressure drops below 55psi to support the dual pumps(will add indicator light and override switch to turn it on when I want to and to run system checks).

It will be kind of like the systems from DSX or Fore Innovations .
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Last edited by Vicster; 09-26-2021 at 12:19 PM.
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Old 09-25-2021, 12:55 PM   #226
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I'm sending you a PM
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Old 09-25-2021, 01:05 PM   #227
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Talking Dyno Compare

Does the Dyno Dynamics dyno read low?
The Dyno Dynamics is known throughout the industry as being the "heartbreaker" dyno - because it breaks the heart of every man that thinks he has 500 hp when he really has 350. The Dyno Dynamics reads lower than the Mustang. It reads WAY lower than a Dynojet.

When Ken told me it reads lower I did not think it was that bad...

How do I compare my pulls to Mustang Dyno, or a Dynojet, or a Dynapack? Every dyno is different. If you want dynojet or mustang-ish #s you have to multiply by 1.18 or so, 1.25+ for DynaPack. But remember, this is just ballpark, as it is not linear.
(So to make it linear we divide by .82%)

So, Mustang dyno is 15% lower and the Dyno Dynamics is 18% lower than a a DynoJet dyno. So the math look something like this?
(So to make it linear we divide by .82%)

765/.82=933 (equals Dynojet dyno)
So if I was to run my car on a DynoJet dyno my HP at the wheels would be 933hp.

Then to get crank HP I need to multiply by 1.15% for drivetrain losses.
(So to make it linear we divide by .85%)
933/.85=1,098
So if I was to run my car on a DynoJet dyno my HP at the crank would be 1,098hp.

So even if the numbers are off, it is still Freakin AWESOME!!!!!

So the Winner of my poll is 1COR.1:18 at 1,100hp at the crank, send me a PM with your E-mail address and I will send you a $25.00 Amazon gift card! Thanks for Voting!

I am sure someone will have more to input on my numbers, please feel free, all I ask is that you include how or why you came to your conclusion.

The dyno difference info was taken from:
https://www.m5board.com/threads/inte...dynojet.95056/

My research on the web supports these numbers as being the most consistent.

.

Last edited by Vicster; 11-02-2021 at 07:06 AM. Reason: Update the math
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Old 09-25-2021, 08:23 PM   #228
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From my calculations, you did well buddy!
Currently this is setup to mock the DynoJet. Mustang is available.
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Old 09-26-2021, 02:09 AM   #229
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Originally Posted by FasNuf View Post
From my calculations, you did well buddy!
Currently this is setup to mock the DynoJet. Mustang is available.
WoW, it really shows the belt slippage! I am glad you were able to run it for me! It comes really close to what I figured it would be. But this is not the 427ci engine, it is the LSA that came with the car, the one I rebuilt. Which makes it even more impressive!!!
The 427 block is still at the machine shop, they should get to it in a couple of weeks.
Thanks again for checking this for me!

Last edited by Vicster; 09-26-2021 at 12:20 PM.
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Old 09-26-2021, 02:20 AM   #230
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Very impressive Vic. I'm just wondering what you would have made if not for the belt slippage. Seems like it had a little more left in it.
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Old 09-26-2021, 03:20 AM   #231
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It should be fairly accurate as long as the car was in 4th gear, tire diameter is stock height and the rearend ratio is 3.73:1


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Old 09-26-2021, 08:47 AM   #232
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Originally Posted by FasNuf View Post


It shold be fairly accurate as long as the car was in 4th gear, tire diameter is stock height and the rearend ratio is 3.73:1

Yes, all of that is correct!

Just didn't want you to think that is all I could get out of my 427ci build. I expect to get around 1,600hp from it!

Last edited by Vicster; 09-26-2021 at 09:22 AM.
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Old 09-27-2021, 06:21 AM   #233
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Shattered...

Quote:
Originally Posted by RobZL1 View Post
Awesome work,, and awesome build!!

Fwiw, these ZL1 6spd drivelines only lose about 12-13%. So 850rwhp is maybe 970 at the flywheel. To get to 1100 flywheel, you'd need to put down about 960rwhp, and a 1900 isn't gonna get there.

With your current mods on 93 octane, I'd guess 760 or so at the wheels, or about 870 motor.

Hope you shatter my guess on the dyno, though! Keep up the good work!!
So if we use the industry standard for dyno HP ratings the Dynojet, I made 1,100hp at the crank, if my issues did not exist and I spun it up to 7,200rpm I am confident that I would be closer to 1,175hp at the crank and 1,000hp at the rear wheels.

Thanks for your input and I have not heard from you in awhile, hope you are still on the forums!

Last edited by Vicster; 09-30-2021 at 04:20 PM.
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Old 11-12-2021, 01:28 PM   #234
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Quote:
Originally Posted by Vicster View Post
Does the Dyno Dynamics dyno read low?
The Dyno Dynamics is known throughout the industry as being the "heartbreaker" dyno - because it breaks the heart of every man that thinks he has 500 hp when he really has 350. The Dyno Dynamics reads lower than the Mustang. It reads WAY lower than a Dynojet.

When Ken told me it reads lower I did not think it was that bad...

How do I compare my pulls to Mustang Dyno, or a Dynojet, or a Dynapack? Every dyno is different. If you want dynojet or mustang-ish #s you have to multiply by 1.18 or so, 1.25+ for DynaPack. But remember, this is just ballpark, as it is not linear.
(So to make it linear we divide by .82%)

So, Mustang dyno is 15% lower and the Dyno Dynamics is 18% lower than a a DynoJet dyno. So the math look something like this?
(So to make it linear we divide by .82%)

765/.82=933 (equals Dynojet dyno)
So if I was to run my car on a DynoJet dyno my HP at the wheels would be 933hp.


Then to get crank HP I need to multiply by 1.15% for drivetrain losses.
(So to make it linear we divide by .85%)
933/.85=1,098
So if I was to run my car on a DynoJet dyno my HP at the crank would be 1,098hp.

So even if the numbers are off, it is still Freakin AWESOME!!!!!

So the Winner of my poll is 1COR.1:18 at 1,100hp at the crank, send me a PM with your E-mail address and I will send you a $25.00 Amazon gift card! Thanks for Voting!

I am sure someone will have more to input on my numbers, please feel free, all I ask is that you include how or why you came to your conclusion.

The dyno difference info was taken from:
https://www.m5board.com/threads/inte...dynojet.95056/

My research on the web supports these numbers as being the most consistent.

.
Hey Vic, I love your optimism, but i think you're reaching here.

If you want to know what it would make on a dynojet, well then put it on a dynojet. I dyno'd HIGHER on both a mustang dyno and a Land and Sea Dyno-mite dyno. Search the internet and they will tell you both of those dynos read lower. Guess what, they were wrong. On that given day, using the correct weather station and correction factor, the dyno jet read LOWER. and even lower yet using SAE.

You have a beautiful build going (2 actually), and I'm sure your 427 with a 2650 will easily make 1000+whp, but not this one. I will have to respectfully disagree with the BMW M5 forum math. All I can share is my own personally real experience.

Curious though... even if you did make 933whp, why the thread title reads Exceeded 1000whp?
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Old 11-12-2021, 09:43 PM   #235
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The best practice on any dyno is to get a baseline number before mods, then after the build, get the new HP on the same dyno The same atmospheric conditions as the baseline run would help consistency. The delta is what we're all really going for.
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Old 11-13-2021, 10:32 AM   #236
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Quote:
Originally Posted by eLeSthree View Post
Curious though... even if you did make 933whp, why the thread title reads Exceeded 1000whp?
I was told by many people here that I would not even make 800hp at the crank, also if I wanted to make any serious power I needed to run E-85.

I put it in the title as a jab to those who said I could not do it. If I corrected the belt slippage and fuel issue so I could hit my targeted rpm of 7,800 instead of 6,500. I am pretty sure I would be past 1,000whp, as we did not add any spark to what I have been running. When I could not run over 6,500 rpm I called it quits and came home.

Doubters will doubt and haters will hate... I am happy that I did everything to this engine (except the block machine work and porting the heads ( I did open the exhaust ports more)) I designed the cam (Comp. Cams ground it to my specs) and picked all the parts and assembled it with my own hands! I am happy with the engine and it has blown away my expectations, it is only my 2nd engine build and it was done in my living room. I know a lot of shop built engines do not run this well!
So, I am proud of what I have accomplished and my Little Engine that could!

Last edited by Vicster; 11-27-2021 at 07:53 AM.
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Old 11-13-2021, 11:20 AM   #237
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Quote:
Originally Posted by Vicster View Post
Curious though... even if you did make 933whp, why the thread title reads Exceeded 1000whp?
I was told by many people here that I would not even make 800hp at the crank, also if I wanted to make any serious power I needed to run E-85.

I put it in the title as a jab to those who said I could not do it. If I corrected the belt slippage and fuel issue so I could hit my targeted rpm of 7,800 instead of 6,500. I am pretty sure I would be past 1,000whp, as we did not add any spark to what I have been running. When I could not run over 6,500 rpm I called it quits and came home.

Doubters will doubt and haters will hate... I am happy that I did everything to this engine (except the block machine work and porting the heads ( I did open the exhaust ports more)) I designed the cam (Comp. Cams ground it to my specks) and picked all the parts and assembled it with my own hands! I am happy with the engine and it has blown away my expectations, it is only my 2nd engine build and it was done in my living room. I know a lot of shop built engines do not run this well!
So, I am proud of what I have accomplished and my Little Engine that could!
[/QUOTE]

You have my admiration and respect buddy
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Old 11-14-2021, 06:51 AM   #238
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You have my admiration and respect buddy
THANK YOU!

IT MEANS ALLOT!


Last edited by Vicster; 11-17-2021 at 10:22 AM.
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