Scott Bush & Relentless Autosports: Exposing the Hype, Lies, and Failure
make sure they change the name on the dynosheet first
Thread Starter
Joined: Nov 2004
Posts: 22,096
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From: San Diego 92111
guys don't take it out on the OP. He is brain washed by Scott. He was offered a truly generous offer to have his car inspected, rebuilt, retuned, and a REAL ems installed if need be. But alas, he is new to FI and thinks that Scott gave him the greatest thing.
maybe one day once he starts having issues with his car he will wake the F up and realize, no one was out to get him, just out to get the truth.
maybe one day once he starts having issues with his car he will wake the F up and realize, no one was out to get him, just out to get the truth.
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From: Texas, Arizona,Cayman Island
Oh ****...good point....It would have been harder to explain the wrong name than it would have been to explain how I got an 850bb to make 1000+ whp
Thanks for the heads up Romey
Well said
guys don't take it out on the OP. He is brain washed by Scott. He was offered a truly generous offer to have his car inspected, rebuilt, retuned, and a REAL ems installed if need be. But alas, he is new to FI and thinks that Scott gave him the greatest thing.
maybe one day once he starts having issues with his car he will wake the F up and realize, no one was out to get him, just out to get the truth.
maybe one day once he starts having issues with his car he will wake the F up and realize, no one was out to get him, just out to get the truth.
Thread Starter
Joined: Nov 2004
Posts: 22,096
Likes: 1
From: San Diego 92111
i really think the OP is clueless.. i'm willing to bet scott took the car to get it dyno'd without the OP and came back with the dyno sheets and gave him this BS info..
i've seen different graph's from different dyno's.. and i have seen high numbers and low numbers.. but one thing is for sure.. the HP and TQ are consistent.. either the HP is higher than the TQ or the TQ is higher than the HP.. but usually with the same setup.. its the same.. i don't know how you make more TQ than HP on one dyno then more HP than TQ on the other dyno with a considerable difference in number
i've seen different graph's from different dyno's.. and i have seen high numbers and low numbers.. but one thing is for sure.. the HP and TQ are consistent.. either the HP is higher than the TQ or the TQ is higher than the HP.. but usually with the same setup.. its the same.. i don't know how you make more TQ than HP on one dyno then more HP than TQ on the other dyno with a considerable difference in number
not even to change parts, but even shops I trust I would love to have someone go over and confirm I am right in trusting them. I am not an expert that can know for certainty my instincts and undersanding are right. there are lots of things a layman could never see.
and if it turns out to be all great, then my confidence is confirmed. there is literally no excuse OP can make for not wanting to do this amazing deal.
and if it turns out to be all great, then my confidence is confirmed. there is literally no excuse OP can make for not wanting to do this amazing deal.
Last edited by Motormouth; Apr 5, 2009 at 05:51 PM.
You need to understand that you dont have a proper fuel system and correctly sized injecors to run at 500 WHP safely let alone 562WHP.I wont even get into the EMS that you should have. 500CC injectors are incapable of supporting this horsepower at a low enough duty cycle to be considered safe. I am just getting down to the facts right now. Screw all the fun stuff like videos and hilarious black hole posts, this is pure facts.You dont have to beleive what many people have said and go on your merry way but dont come crying back when your engine blows up. And please dont deny the facts that have been presented here regarding Scott Bush and his shady operation Relentless Autosports.
Ok guys I've been gone for some time now because I've been working on moving to Florida but I finally got a break so i sat down and decided to scan and post the dynos. I went to JBA and The Dyno Shop and ran 13 lbs of boost, and also ran 15 lbs at The dyno shop. The numbers say it all, 500+ hp with 500cc injectors. The only reason the torque was off on the 15 lb run was because there was tire spinning. I hope this settles some issues!!
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I must say that I am impressed with your dyno results

I am from Singapore and I guess that we are a bit behind the times when it comes to technology. My engine builder has always got me to buy parts that I suspect are more than what I need for my requirements. And after seeing your dyno results, it just confirms that I don't need the 1000cc/min injectors that he got me to buy.
But before I go confront him, can you please let me know what fuel pressure you are running your system at? And what duty cycle are you running the injectors at?
Without taking fuel pressure into consideration, going by the calculations at this website, http://www.witchhunter.com/injectorcalc1.php4,
using crank HP of 585HP (509rwhp x 1.15, think 15% transmission loss is fair),
and BSFC of 0.6, I calculate that you need a fuel injector duty cycle of 123% if you are using 500cc/min injectors.
Is it safe to run injectors at 123% on a constant basis? My engine builder told me that a reasonable number is 85% at WOT or else I will blow my engine. Can you show me some literature so that I can call BS on him!
Or maybe you are running at 85% duty cycle and just increased the fuel pressure. But going by this calculations, http://www.rceng.com/technical.aspx, you need a fuel pressure of 130PSIG!! How did you manage to achieve such a high pressure? I don't think even my dual Sard 280L/min can do that? What fuel pumps are you using? Please don't say that you are using the stock fuel pump because I don't see a fuel pump upgrade on your build sheet. I am going to sue my builder if you are using the stock fuel pump and can get such high pressure

And you stated that you are not running a fuel return system? Again...I am mad. How did your engine builder manage to run such a high pressure fuel system without a fuel return system?
I hope that you will share the knowledge so that I can go confront my engine builder.
Hi,
I must say that I am impressed with your dyno results
I am from Singapore and I guess that we are a bit behind the times when it comes to technology. My engine builder has always got me to buy parts that I suspect are more than what I need for my requirements. And after seeing your dyno results, it just confirms that I don't need the 1000cc/min injectors that he got me to buy.
But before I go confront him, can you please let me know what fuel pressure you are running your system at? And what duty cycle are you running the injectors at?
Without taking fuel pressure into consideration, going by the calculations at this website, http://www.witchhunter.com/injectorcalc1.php4,
using crank HP of 585HP (509rwhp x 1.15, think 15% transmission loss is fair),
and BSFC of 0.6, I calculate that you need a fuel injector duty cycle of 123% if you are using 500cc/min injectors.
Is it safe to run injectors at 123% on a constant basis? My engine builder told me that a reasonable number is 85% at WOT or else I will blow my engine. Can you show me some literature so that I can call BS on him!
Or maybe you are running at 85% duty cycle and just increased the fuel pressure. But going by this calculations, http://www.rceng.com/technical.aspx, you need a fuel pressure of 130PSIG!! How did you manage to achieve such a high pressure? I don't think even my dual Sard 280L/min can do that? What fuel pumps are you using? Please don't say that you are using the stock fuel pump because I don't see a fuel pump upgrade on your build sheet. I am going to sue my builder if you are using the stock fuel pump and can get such high pressure
And you stated that you are not running a fuel return system? Again...I am mad. How did your engine builder manage to run such a high pressure fuel system without a fuel return system?
I hope that you will share the knowledge so that I can go confront my engine builder.
I must say that I am impressed with your dyno results

I am from Singapore and I guess that we are a bit behind the times when it comes to technology. My engine builder has always got me to buy parts that I suspect are more than what I need for my requirements. And after seeing your dyno results, it just confirms that I don't need the 1000cc/min injectors that he got me to buy.
But before I go confront him, can you please let me know what fuel pressure you are running your system at? And what duty cycle are you running the injectors at?
Without taking fuel pressure into consideration, going by the calculations at this website, http://www.witchhunter.com/injectorcalc1.php4,
using crank HP of 585HP (509rwhp x 1.15, think 15% transmission loss is fair),
and BSFC of 0.6, I calculate that you need a fuel injector duty cycle of 123% if you are using 500cc/min injectors.
Is it safe to run injectors at 123% on a constant basis? My engine builder told me that a reasonable number is 85% at WOT or else I will blow my engine. Can you show me some literature so that I can call BS on him!
Or maybe you are running at 85% duty cycle and just increased the fuel pressure. But going by this calculations, http://www.rceng.com/technical.aspx, you need a fuel pressure of 130PSIG!! How did you manage to achieve such a high pressure? I don't think even my dual Sard 280L/min can do that? What fuel pumps are you using? Please don't say that you are using the stock fuel pump because I don't see a fuel pump upgrade on your build sheet. I am going to sue my builder if you are using the stock fuel pump and can get such high pressure

And you stated that you are not running a fuel return system? Again...I am mad. How did your engine builder manage to run such a high pressure fuel system without a fuel return system?
I hope that you will share the knowledge so that I can go confront my engine builder.
Thread Starter
Joined: Nov 2004
Posts: 22,096
Likes: 1
From: San Diego 92111
give the OP a few days to confer with Scott, who in turn will confer with Mark (since Scott doesn't know ****), who will get the story straight with Jim Wolf and then it will reverse order until the story gets back to the OP so he can give you the answer.
owwwwwwwww, my head hurts thinking about that
owwwwwwwww, my head hurts thinking about that
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Joined: Sep 2007
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From: Texas, Arizona,Cayman Island
Hi,
I must say that I am impressed with your dyno results
I am from Singapore and I guess that we are a bit behind the times when it comes to technology. My engine builder has always got me to buy parts that I suspect are more than what I need for my requirements. And after seeing your dyno results, it just confirms that I don't need the 1000cc/min injectors that he got me to buy.
But before I go confront him, can you please let me know what fuel pressure you are running your system at? And what duty cycle are you running the injectors at?
Without taking fuel pressure into consideration, going by the calculations at this website, http://www.witchhunter.com/injectorcalc1.php4,
using crank HP of 585HP (509rwhp x 1.15, think 15% transmission loss is fair),
and BSFC of 0.6, I calculate that you need a fuel injector duty cycle of 123% if you are using 500cc/min injectors.
Is it safe to run injectors at 123% on a constant basis? My engine builder told me that a reasonable number is 85% at WOT or else I will blow my engine. Can you show me some literature so that I can call BS on him!
Or maybe you are running at 85% duty cycle and just increased the fuel pressure. But going by this calculations, http://www.rceng.com/technical.aspx, you need a fuel pressure of 130PSIG!! How did you manage to achieve such a high pressure? I don't think even my dual Sard 280L/min can do that? What fuel pumps are you using? Please don't say that you are using the stock fuel pump because I don't see a fuel pump upgrade on your build sheet. I am going to sue my builder if you are using the stock fuel pump and can get such high pressure
And you stated that you are not running a fuel return system? Again...I am mad. How did your engine builder manage to run such a high pressure fuel system without a fuel return system?
I hope that you will share the knowledge so that I can go confront my engine builder.
I must say that I am impressed with your dyno results

I am from Singapore and I guess that we are a bit behind the times when it comes to technology. My engine builder has always got me to buy parts that I suspect are more than what I need for my requirements. And after seeing your dyno results, it just confirms that I don't need the 1000cc/min injectors that he got me to buy.
But before I go confront him, can you please let me know what fuel pressure you are running your system at? And what duty cycle are you running the injectors at?
Without taking fuel pressure into consideration, going by the calculations at this website, http://www.witchhunter.com/injectorcalc1.php4,
using crank HP of 585HP (509rwhp x 1.15, think 15% transmission loss is fair),
and BSFC of 0.6, I calculate that you need a fuel injector duty cycle of 123% if you are using 500cc/min injectors.
Is it safe to run injectors at 123% on a constant basis? My engine builder told me that a reasonable number is 85% at WOT or else I will blow my engine. Can you show me some literature so that I can call BS on him!
Or maybe you are running at 85% duty cycle and just increased the fuel pressure. But going by this calculations, http://www.rceng.com/technical.aspx, you need a fuel pressure of 130PSIG!! How did you manage to achieve such a high pressure? I don't think even my dual Sard 280L/min can do that? What fuel pumps are you using? Please don't say that you are using the stock fuel pump because I don't see a fuel pump upgrade on your build sheet. I am going to sue my builder if you are using the stock fuel pump and can get such high pressure

And you stated that you are not running a fuel return system? Again...I am mad. How did your engine builder manage to run such a high pressure fuel system without a fuel return system?
I hope that you will share the knowledge so that I can go confront my engine builder.
BTW....I dont think scott/RA/VRT uses those calculations....He uses some sort of VooDoo (TM)calculation
Last edited by XKR; Apr 5, 2009 at 07:32 PM.
now you know damn well he wouldnt work on your car so why ask dumb questions. You dont fit the demographic. You are well informed, a advid forum poster, over 24 years old and not dumb with your money. Sorry dood you fail
Last edited by r0mey; Apr 5, 2009 at 07:50 PM.
Thread Starter
Joined: Nov 2004
Posts: 22,096
Likes: 1
From: San Diego 92111
I could have my wife bring the car to him....
Last edited by r0mey; Apr 5, 2009 at 07:50 PM.




