Most RWHP from P1SC-1?
Adam of RPM (see sig if ya don't know) made 633RWHP during the dead-dog heat of summer with his stock bottom-end and heads!!! MM has a video of the pull that he's posted here at least twice before; maybe he will again...
-edit- g5x3 cam, QTP headers, M6 (duh), obx-style FMIC, and on a dynojet dyno
-edit- g5x3 cam, QTP headers, M6 (duh), obx-style FMIC, and on a dynojet dyno
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Not trying to be funny but all these rwhp numbers are total BOLLOX.
500rwhp on a dyno jet doesn't mean jack when comparing to how much the engine started with at the flywheel. So it also means you can't directly compare the numbers with any other dyno either.
Was the 500rwhp corrected, is it to STD or SAE standards, was it smoothed and corrected for errors and spikes? Not to mention a Dynojet is a non load bearing dyno. If you take into account all the factors the number is probably nearer to 460-480rwhp at best. Nearly ALL the quoted rwhp numbers for any of the cars out there are usually over optimistic when comparing to stock engine output.
If you put the same car under the same conditions on to a Dynojet, Mustang, Dynodynamics or Roto Sound rolling road dyno you would get DIFFERENT numbers from all of them, possibly ranging between 40+rwhp difference.
500rwhp on a dyno jet doesn't mean jack when comparing to how much the engine started with at the flywheel. So it also means you can't directly compare the numbers with any other dyno either.
Was the 500rwhp corrected, is it to STD or SAE standards, was it smoothed and corrected for errors and spikes? Not to mention a Dynojet is a non load bearing dyno. If you take into account all the factors the number is probably nearer to 460-480rwhp at best. Nearly ALL the quoted rwhp numbers for any of the cars out there are usually over optimistic when comparing to stock engine output.
If you put the same car under the same conditions on to a Dynojet, Mustang, Dynodynamics or Roto Sound rolling road dyno you would get DIFFERENT numbers from all of them, possibly ranging between 40+rwhp difference.
Originally Posted by 300bhp/ton
Not trying to be funny but all these rwhp numbers are total BOLLOX.
Just curious as to how you would have members compare their results then? The original poster is obvously interested in getting a P1SC charger and was looking to see what type of limits it would have.
We are all aware that dyno numbers are not the same as track times, and even track times get the same arguement of corrected to sea level and all the other bullshit that goes with comparing cars and egos. I guess from now on we should just all say, " Its real fast or really really fast" that way we are all on the same page?? 
OK .. Rant completed ... Sorry for the interuption. Now back to the thread at hand.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by Spurtle
Just curious as to how you would have members compare their results then? The original poster is obvously interested in getting a P1SC charger and was looking to see what type of limits it would have.
We are all aware that dyno numbers are not the same as track times, and even track times get the same arguement of corrected to sea level and all the other bullshit that goes with comparing cars and egos. I guess from now on we should just all say, " Its real fast or really really fast" that way we are all on the same page?? OK .. Rant completed ... Sorry for the interuption. Now back to the thread at hand.
As for comparing, well if one person has a dyno sheet of 480rwhp and another person with the exact same setup has a dyno sheet of 500rwhp. What does it prove?
Is one car under performing? Are they the same? What?
In all reality the higher nummbered result could actually be making less power. But without all of the facts on how and where it was dyno'd and on what, they are just numbers and no more.
So what I'm saying is, yes dyno numbers are fun. But take them all with a very large pinch of salt.
Originally Posted by JESTERSS
How much RWHP have you managed to squeeze out of your P1SC-1 on your LS1?
Last time the car was on the dynojet it was at 500 RWHP, and I'm wondering how much more hp can be gotten out of my P1SC-1.
Thanks, Matt.
Last time the car was on the dynojet it was at 500 RWHP, and I'm wondering how much more hp can be gotten out of my P1SC-1.
Thanks, Matt.
Originally Posted by 300bhp/ton
no I think far too many people READ far too much into dyno numbers. When most of the time they are almost meaingless as a directly comparative meausre.
So what I'm saying is, yes dyno numbers are fun. But take them all with a very large pinch of salt.
So what I'm saying is, yes dyno numbers are fun. But take them all with a very large pinch of salt.
So you answered his question HOW??? If he is asking for dyno numbers from others, and your answer is that they dont mean squat, how are you helping the original poster? If he had asked, "How reliable are dyno numbers?" I could understand your original response.
Sorry .. just tired of reading a nice thread only to see someone jump in with nothing but negative to say and now I have been lowered to do the same.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by Spurtle
So you answered his question HOW??? If he is asking for dyno numbers from others, and your answer is that they dont mean squat, how are you helping the original poster? If he had asked, "How reliable are dyno numbers?" I could understand your original response.
Sorry .. just tired of reading a nice thread only to see someone jump in with nothing but negative to say and now I have been lowered to do the same.
Sorry .. just tired of reading a nice thread only to see someone jump in with nothing but negative to say and now I have been lowered to do the same.
And generally the only time people get upset about it, is the realisation of what it all means. That many of these 500rwhp cars, are not really 500rwhp cars at all.
Originally Posted by 300bhp/ton
My apologies, but I felt it was appropriate.
And generally the only time people get upset about it, is the realisation of what it all means. That many of these 500rwhp cars, are not really 500rwhp cars at all.
And generally the only time people get upset about it, is the realisation of what it all means. That many of these 500rwhp cars, are not really 500rwhp cars at all.
Seriously ... sorry for all the ranting. I apologize to everyone involved and for the waste of bandwidth.
Peace out!
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by Spurtle
I will ask one more question though. If you dont believe in dyno numbers .. Why is your screen name 300bhp/ton? Isn't that a dreaded dyno number?
As for the name, well it's a kind of a personal goal. There are many out there that beleive serious performance cars have a power to weight ratio of 300bhp per metric tonne. As power to weight often has more bearing on potential than rwhp.
An Fbody weighs ~1650kg, so to achieve my aim I need to be looking at 495bhp at the engine.
Apart from that, it's just a name and no more. But power to weight is an interesting thing. A 230bhp Caterham Superlight has a power to weight ratio of 500bhp/ton, but then again it is rather quick.
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