Jump to content
SAU Community

Power Differences Between 4wd/rwd Etc?

AhhBurt

By AhhBurt,
in Engines & Forced Induction

 Share

Recommended Posts

AhhBurt Contributor

AhhBurt

Posted
Posted

Obviously you get a lower hp reading running 4wd rather than rwd and so forth, but are there any estimate formulas on the differences?

My car makes roughly 460hp at all 4, but would be curious to know roughly what that would make in rwd (as thats pretty much how it drives anyway) and what power the engine itself would be producing.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

As posed by a number of users, there is little difference from their actual results.

DirtGarage was one user who posted up about it

Have a search, been covered a fair bit now... couple of people disagree with the real world however ;)

rb26s13 Mentor

rb26s13

Posted
Posted (edited)
i have a custmors gtr at work it 1113hp in rwd and 998hp in fwd

thats interesting.. couldnt imagine anyone really wanting to turn a gtr into front wheel drive only... sure you dont mean 4wd? :D

edit: fixxed typo lack of sleep kicking in

Edited by rb26s13

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      Nismo GT Pro LSD configurations

      By GTSBoy · Posted

      Well, the trouble with that ^^ is: The configuration shown is absolutely a 1-way, not a 1.5-way. There is no way that a 1.5-way can be said to offer LSD action only on acceleration. If Nismo cannot get that right, then it is impossible to believe their documentation. That ^ is not a 1.5 way setup. That is a 1-way.   And so now I have allowed all doubts to flourish and have gone back to look at the MotoIQ video. I originally made the mistake of believing him when he said "this is a 1.5-way" at the ~6:10 mark. Because what he did was take the gear assembly out of the 2-way opening and just rotate it one place to the left to drop it into the 1-way opening. When he dropped it in there, the cam was "backwards" compared to the correct orientation shown in all other photos of that config. The flat shold have been facing the 1° ramp side of the opening, not the 55° ramp side. And I thought, "gee that's cute", but I was concerned at the time, when he put the other ring back on, that the gap between the rings looked like it was wider then in the 2-way config. And then I said a lot of things in my long post on Tuesday that could only make sense if the guy from MotoIQ was correct about what he'd done. BUT... I have now done my homework. I grabbed a frame of the video with the 2-way config, and then grabbed another with the "1.5-way" config, snipped out the cam and opening of that frame and just pasted it direct on top of the 2-way config. I scaled it so that the triangular opening was almost exactly the same height in both. AND.... the gap between the plates is wider with the cam installed in the triangualr opening backwards. That is.... it cannot go together that way. There would be massive force on the plates all the time, if you could even reassemble it.  So, My statement on the matter? The Nismo diff is actually only a 2-way and 1-way. There is no 1.5-way option in it, regardless of what they say. Here's a photo of a real 1.5-way ramp opening from Cusco (along with the 1 way option). And the full set of 1 through 2 way options from their racing diff, which is not same-same as what we'd typically be using, but...the cams work the same. A little blurry, but it comes from this Cusco doc, which is quite helpful. AND.... Cusco do in fact do what I suggested would be sensible, which is to have rings that do 1 and 1.5, and 1.5 and 2. Separately.  
    • PranK
      Hello sau 👋

      By PranK · Posted

      Welcome Adam. Car looks great!
    • Kinkstaah
      Nismo GT Pro LSD configurations

      By Kinkstaah · Posted

      "With a 1.5-WAY, the LSD is effective only during acceleration."
    • TurboTapin
      Nismo GT Pro LSD configurations

      By TurboTapin · Posted

      Well it wasn't as easy as I thought.... and it also wasn't in my original manual which I did end up finding. They discuss the process in the Nismo catalogue though and it requires slight machining. Page 145.  NISMO PARTS CATALOGUE 2020
    • TurboTapin
      Why am I hitting a power wall with my stroked RB25?

      By TurboTapin · Posted

      I'm an idiot, my intercooler is rated for 1000hp. I had clicked on the wrong product. Knowing the delta P would be nice, but I'm doubtful I'll do it. Now as for an EMAP, that would be great and I'll get around to it eventually but from my findings in my last post, I'm considering a turbo swap now. 
×
×
  • Create New...