Jump to content
SAU Community

Porsche Gt-3 Question

dineth

By dineth,
in General Automotive Discussion

 Share

Recommended Posts

dineth Proficient

dineth

Posted
Posted (edited)

Hey guys, was bored the other day and was looking at the R35 GTR specs and the GT2 specs etc...and i have always wanted to know....how the hell does the Porsche GT3 get 305 kw's out of a flat 6?? from what i could understand its the same basic engine as the GT2 but less 2 turbo's, yet still manage 'only' 50 less kw's at the engine? i find it quite extrodinary!

Edited by dineth
Link to comment
https://www.sau.com.au/forums/topic/244307-porsche-gt-3-question/
Share on other sites
scathing Grand Master

scathing

Posted
Posted

414hp out of 3.6L is about 115hp/L. For perspective, the full volume S2000 engine makes 119hp/L and the Autech limited edition (but road legal) SR16VE in the old N15 Pulsar made 125hp/L.

Neither of them would have the reasonably smooth torque curve of the GT3, but considering it's over a quarter of a million dollars you'd assume Porsche could afford to build the engine properly.

MP_R33 Mentor

MP_R33

Posted
Posted

Its basically because Porsche dont build some cars to the best of their abilities but just simply to slot them in between others.

Take the cayman for example it could have produced so much more power although it was built with that amount so it could slot between the boxster and the 911.

dineth Proficient

dineth

Posted
  • Author
Posted
Its basically because Porsche dont build some cars to the best of their abilities but just simply to slot them in between others.

Take the cayman for example it could have produced so much more power although it was built with that amount so it could slot between the boxster and the 911.

hmmm yes and no, i know that on top gear JC did say that the cayman could possibly be a better car than the 911 if they gave it more power, and thats prob true and i guess the caymen is made to get more sales for the company, but its not the hero car. I think something like a GT3 RS or a Carrera GT for example would be built to the best of their abilities because they are cars that you could take straight from the showroom to the track and they would be competing against other makes such as BMW (M models) / Audi (RS models) in the GT3's case and Ferrari and Lambo's in the Carrera GT's case.

MP_R33 Mentor

MP_R33

Posted
Posted
Its basically because Porsche dont build some cars to the best of their abilities but just simply to slot them in between others.

Take the cayman for example it could have produced so much more power although it was built with that amount so it could slot between the boxster and the 911.

I did say some cars, as you said like the gt3 it would obviously be built at its best although i was simply saying some models could be better.

the again i dont know too much about Porsche so i best just keep my mouth shut :blink:

mad082 Grand Master

mad082

Posted
Posted

the simple answer is........ money. they aren't building cars for the average family, who car about fuel economy, etc. they are building cars for rich pricks who will service the cars when they should, and don't really drive them every day of the week (although some would).

but now the gt3 has ceased production (probably because they weren't selling enough turbos). but i am glad that they replaced it with the gt2, a car that, even without the extra power over the turbo, would out perform the turbo due to being lighter than the turbo due to not being 4wd. i'm pretty sure that around a race track the gt3 is quicker than the 911 turbo

phunky_monkey Grand Master

phunky_monkey

Posted
Posted
the simple answer is........ money. they aren't building cars for the average family, who car about fuel economy, etc. they are building cars for rich pricks who will service the cars when they should, and don't really drive them every day of the week (although some would).

but now the gt3 has ceased production (probably because they weren't selling enough turbos). but i am glad that they replaced it with the gt2, a car that, even without the extra power over the turbo, would out perform the turbo due to being lighter than the turbo due to not being 4wd. i'm pretty sure that around a race track the gt3 is quicker than the 911 turbo

All GT3's have been limited production since their inception, definitely not that case, and it's not replaced with the GT2, they're parallel models despite not being on sale at the same time.

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

    • Kapr
      RB20DE NEO smallbox clutch.

      By Kapr · Posted

      For once a good news  It needed to be adjusted by that one nut and it is ok  At least something was easy But thank you very much for help. But a small issue is now(gearbox) that when the car is stationary you can hear "clinking" from gearbox so some of the bearing is 100% not that happy... It goes away once you push clutch so it is 100% gearbox. Just if you know...what that bearing could be? It sounding like "spun bearing" but it is louder.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      Yeah, that's fine**. But the numbers you came up with are just wrong. Try it for yourself. Put in any voltage from the possible range and see what result you get. You get nonsense. ** When I say "fine", I mean, it's still shit. The very simple linear formula (slope & intercept) is shit for a sensor with a non-linear response. This is the curve, from your data above. Look at the CURVE! It's only really linear between about 30 and 90 °C. And if you used only that range to define a curve, it would be great. But you would go more and more wrong as you went to higher temps. And that is why the slope & intercept found when you use 50 and 150 as the end points is so bad halfway between those points. The real curve is a long way below the linear curve which just zips straight between the end points, like this one. You could probably use the same slope and a lower intercept, to move that straight line down, and spread the error out. But you would 5-10°C off in a lot of places. You'd need to say what temperature range you really wanted to be most right - say, 100 to 130, and plop the line closest to teh real curve in that region, which would make it quite wrong down at the lower temperatures. Let me just say that HPTuners are not being realistic in only allowing for a simple linear curve. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      I feel I should re-iterate. The above picture is the only option available in the software and the blurb from HP Tuners I quoted earlier is the only way to add data to it and that's the description they offer as to how to figure it out. The only fields available is the blank box after (Input/ ) and the box right before = Output. Those are the only numbers that can be entered.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      No, your formula is arse backwards. Mine is totally different to yours, and is the one I said was bang on at 50 and 150. I'll put your data into Excel (actually it already is, chart it and fit a linear fit to it, aiming to make it evenly wrong across the whole span. But not now. Other things to do first.
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      God damnit. The only option I actually have in the software is the one that is screenshotted. I am glad that I at least got it right... for those two points. Would it actually change anything if I chose/used 80C and 120C as the two points instead? My brain wants to imagine the formula put into HPtuners would be the same equation, otherwise none of this makes sense to me, unless: 1) The formula you put into VCM Scanner/HPTuners is always linear 2) The two points/input pairs are only arbitrary to choose (as the documentation implies) IF the actual scaling of the sensor is linear. then 3) If the scaling is not linear, the two points you choose matter a great deal, because the formula will draw a line between those two points only.
×
×
  • Create New...