turbochargers for 500hp

[Thuppu]

Sonic, you can get the same spoolup but with 600+hp/700+Nm with an HX40 Super. Seems that there arn't much competitors to Holset here.

[Sonic]

Yeah i'd agree with that, although im not convinced it's going to be any more impressive for street driving... in my experience you get to the point where the extra power has little or not return unless you're on a drag-strip or dual-carriageway

Also the kx500 i have is k26 flange... so nice and OEM

[S2central.net]

Indeed i find this about as good as you can probably get for street driving... 464bhp (without wmi) / 650Nm torque causing all hell-for-leather before 4500rpm. If you're in any doubt ask the chaps in the 550bhp c63 AMG, 997 GT3 RS and tuned Nissan GTR that were following me around Wales

448 pound foot = 607.406 Nm but who is counting it is undoubtedly rapid

[Sonic]

448 pound foot = 607.406 Nm but who is counting it is undoubtedly rapid

Uhhh yeah that's me being completely stupid and misreading the bloody chart

Who the hell makes a graph with a 16 point difference between each line anyway?!

[rst]

Has any of you used MasterPower Turbos? Or heared something good about them?
There is a lot of models and you can chose between variety of turbine housings. Also these turbos are dirty cheap, prices start for new turbos 600€.
Here is their product catalog:

http://www.hevosvoima.com/foorumi/files/mp/MasterpowerPerformanceKatalogi.pdf

[Albert]

Wishful thinking, the GT30 turbine maxes out at around 500hp.
Sticking a bigger comp wheel on that is a waste of time, which is why in independent tests a GTX3076R only delivers 5% power improvement, if even that. The GTX turbo to have with a GT30 turbine is the GTX3071R, as it is basically a GT3076R with better spool.

Easy to get lost in compressor maps, but there are always two halves to a turbocharger, and both have to flow. There is no sense in using a huge comp wheel when the turbine is choking.
A GTX3582 or GTX3576 are much better ideas.

Can you plase post link to independent tests ?

GT3076R vs GTX3076R hot side




GTX3076R 0.82 A/R has same peek power on 2.5L engine that GTX3082R 0.63 A/R - HP figure is HP on wheels



some other graphics



GTX3076R 0.82 A/R vs GTX3582 0.82 A/R - HP figure is HP on wheels



For me Holset is old turbo for trucks.

full test with more turbos Garrett is here http://forums.nasioc.com/forums/show....php?t=2110277

[Biturbo]

Don't forget 2.2t it is old school .Most engines have over 20 years.But is still good or event better than new cars.Old holset is same is better than more new modern turbos

[Error404]

Indeed i find this about as good as you can probably get for street driving... 464bhp (without wmi) / 650Nm torque causing all hell-for-leather before 4500rpm. If you're in any doubt ask the chaps in the 550bhp c63 AMG, 997 GT3 RS and tuned Nissan GTR that were following me around Wales

As I said on Saturday the speeds your car with achieve on a twisty B-road is offensive.

[quattro-nick]

for those who are interested,Tomorrow goes my car on the dyno
it's a coupe quattro b2 with AAN gt3076r A/R 0.82
if all goes well with no lumps, I will post the result so you have an extra picture what a GT3076R can accomplish(i hope a good 500hp )

[V6quattro]

for those who are interested,Tomorrow goes my car on the dyno
it's a coupe quattro b2 with AAN gt3076r A/R 0.82
if all goes well with no lumps, I will post the result so you have an extra picture what a GT3076R can accomplish(i hope a good 500hp )

Nice! Good luck! What dyno will you use?

[quattro-nick]

thanks v6quattro
i go to "duxe tuning" in merksplas belgium

[Jaswan]

no offence is meant by this but, why are you only comparing holset and garrett turbos? there a a hell of a lot more companies that make very good turbos, why get stuck on 2?

[nicksonmsport]

I just.mentioned the garret and holset options as I had the opportunity to purchase a used item of each at a good price. Im 100% open to any other suggestions of turbos to use!

Many thanks

[S2central.net]

I still like to see how the EFR turbos from BW fair up alongside others - in 2.5 or 2.2L guise... I would personally like to see more torque below 4krpm in deference to monster power on a drag strip...

[PRY4SNO]

I still like to see how the EFR turbos from BW fair up alongside others - in 2.5 or 2.2L guise... I would personally like to see more torque below 4krpm in deference to monster power on a drag strip...

I'll just leave this here.

Not coincidentally, these results were a major contributing factor in leading me to an EFR7163 instead of an HY/HX35 or 40 Super. Results gained swapping turbos using the same 2.5L Subaru on the same dyno.

Source:

http://blog.perrinperformance.com/borg-warner-efr-7163-test-and-tune/