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Home > Technical > 4.2 Supercharged remap |
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carlos50 Member Since: 04 Oct 2010 Location: North East Posts: 396 |
Push the gear stick to the left, SPORT mode. |
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Wed Dec 22 2010 9:41am |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
Pulley is around £300 from what I have read and I will get the remap from the guy who used to supply me with files when i was remapping cars.
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Wed Dec 22 2010 4:06pm |
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ciaa Member Since: 31 Mar 2009 Location: Dubai Posts: 70 |
I used a kit from a company called eurotoys in the states and had it installed locally... its a 2.5psi pulley,.with all other pulleys and tensioners modified .. good value imo http://eurotoysltd.com/catalog/product_inf...ts_id=1143 2006 RRS Supercharged Hawke Saker 22" rims Nitto Tires Larini exhaust System ECU remap Modified and ported supercharger with 3lb pulley |
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Wed Dec 22 2010 7:36pm |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
Did it make a did difference?? Cayenne Turbo "S" 521bhp Standard
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Wed Dec 22 2010 8:44pm |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
Not sure, I am a turbo man usually, +2.5psi extra is nothing for a turbo but not sure on a supercharger. I doubt it will cause any issues though.
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Thu Dec 23 2010 2:13pm |
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avos Member Since: 26 Aug 2008 Location: Belgium Posts: 106 |
Don’t expect a linear power improvement with increasing the psi, the eaton is already it its maximum efficiency, and increasing the speed will take more power form your engine and also increase heat which works contra productive to the power delivered to the wheels. Lower end you will get more power, and the car picks up earlier (*as the supercharger is turning quicker), but top end you will not gain that much if at all. But low-end/mid range is of course already good.
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Thu Dec 23 2010 3:49pm |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
Going from my old cossie days 3 psi will easy make 50 or 60bhp extra on a 4200cc engine but it is prob going to take and extra 20bhp to turn the charger faster higher up the rev range. As you rightly say the compressor is more or less flat out in terms of efficience and turning it faster has a huge effect on charge temperature.
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Thu Dec 23 2010 6:28pm |
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avos Member Since: 26 Aug 2008 Location: Belgium Posts: 106 |
Turbos do require less engine power than the superchargers, so there (if your engine (/cams) are designed for it) a turbo will easier add power. But there are some better superchargers then the eatons roots one like the twin-screws that require less power from the engine up to very high boost levels. The benifit in general of superchargers is that they provide already good boost at low rpm ranges.
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Thu Dec 23 2010 7:50pm |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
I also have that graphs from the m112, handy to have.
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Thu Dec 23 2010 8:01pm |
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avos Member Since: 26 Aug 2008 Location: Belgium Posts: 106 |
These are not exact figures, but it does illustrate what happens. Lower end the gains are more. I also think a package like je engineering has (so pulley, exhaust, high flow cats and a custom tune) could maybe add 40 or 50 bhp as they claim, just gets pricy. RRS SDV6 HEV Dynamic
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Thu Dec 23 2010 8:26pm |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
i wont be using high flow cats. i will remove the cats and get de-cat pipes made and put the cats back on for the MOT. Depending on how good or bad the standard exhaust looks i will either get a new one made or just fit better back boxes. I have a 4 post ramp at my house so easy enough job. I can also get a remap pretty cheap from my tuner guy. Cayenne Turbo "S" 521bhp Standard
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Thu Dec 23 2010 8:33pm |
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ciaa Member Since: 31 Mar 2009 Location: Dubai Posts: 70 |
Is there a direct replacement twin screw supercharger to replace the roots type available ? I see you have one on your Jag .. this could be a better option if the price is right 2006 RRS Supercharged Hawke Saker 22" rims Nitto Tires Larini exhaust System ECU remap Modified and ported supercharger with 3lb pulley |
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Tue Jan 11 2011 5:15pm |
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paulmc Member Since: 07 Sep 2010 Location: Aberdeenshire Posts: 25 |
Yes he does but kit is Round £4500gbp. The supercharger is not that expensive but all the fabricated bits to make it fit cost the money Cayenne Turbo "S" 521bhp Standard
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Tue Jan 11 2011 7:23pm |
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Buster007 Member Since: 02 Dec 2010 Location: Essex Posts: 649 |
It's more £4800 if you want the bigger better Supercharger! But from what I understand it will leave the new 5.0Ltr S/C RRs for dead - I'm saving up!! Cheers Laurence. |
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Tue Jan 11 2011 8:22pm |
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