Big turbos anyone?

4.0 V8 40v biturbo TFSI - 553 bhp
4.0 V8 40v biturbo TFSI - 597 bhp (Performance)
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Paulm
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Big turbos anyone?

Post by Paulm » Thu Jan 10, 2019 2:03 pm

Very good price for around 850bhp??

http://www.turbo-upgrade.com/produse/jh ... tfsi/2157/
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

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MikeFish
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Re: Big turbos anyone?

Post by MikeFish » Thu Jan 10, 2019 11:22 pm

Do it!

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Paulm
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Re: Big turbos anyone?

Post by Paulm » Fri Jan 11, 2019 7:57 am

MikeFish wrote:
Thu Jan 10, 2019 11:22 pm
Do it!
I said no MODS, not sure that will last long :lol:
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

bam_bam
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Posts: 14436
Joined: Mon Jan 18, 2010 9:08 pm
Location: London

Re: Big turbos anyone?

Post by bam_bam » Fri Jan 11, 2019 3:57 pm

Paulm wrote:
Thu Jan 10, 2019 2:03 pm
Very good price for around 850bhp??

http://www.turbo-upgrade.com/produse/jh ... tfsi/2157/
Buying big turbos from the Russians... nope.
No matter where you go, there you are.

Tadass910
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Re: Big turbos anyone?

Post by Tadass910 » Wed Jan 16, 2019 5:41 pm

bam_bam wrote:
Fri Jan 11, 2019 3:57 pm
Paulm wrote:
Thu Jan 10, 2019 2:03 pm
Very good price for around 850bhp??

http://www.turbo-upgrade.com/produse/jh ... tfsi/2157/
Buying big turbos from the Russians... nope.
Russians do bigger turbos?

bam_bam
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Posts: 14436
Joined: Mon Jan 18, 2010 9:08 pm
Location: London

Re: Big turbos anyone?

Post by bam_bam » Wed Jan 16, 2019 7:44 pm

Tadass910 wrote:
Wed Jan 16, 2019 5:41 pm
bam_bam wrote:
Fri Jan 11, 2019 3:57 pm
Paulm wrote:
Thu Jan 10, 2019 2:03 pm
Very good price for around 850bhp??

http://www.turbo-upgrade.com/produse/jh ... tfsi/2157/
Buying big turbos from the Russians... nope.
Russians do bigger turbos?
I don't know but the ones posted by the OP are Russian, aren't they?
No matter where you go, there you are.

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Mr Footlong
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Re: Big turbos anyone?

Post by Mr Footlong » Wed Jan 16, 2019 8:48 pm

If they were any good, I would have poss taken a punt for a laugh at that price, but I already break traction on command at anything below 70 currently (really, really wish I was lying, can't put the power down properly...) when I mildly mash the pedal and the wandering torque steer that nobody can dial out at all tells me no way.
Current:

"Brutus"- C5 RS6 Avant - MRC stage 2 - Milltek non-res + 100 cell cats - Wagner ICs - PSS9 - H&R ARBs - OZ Superturismo LM - C6 Custom brakes - HD RNS-E - Various other bits - 555PS/832Nm

Gone:
"Taz"- C7 RS6 - MRC stage 2 - Milltek non-res + 100 cell cats, uprated fuel pumps, race plugs, 745PS/1095Nm
12' Cayenne Turbo, B7 RS4, S3, Cupra R, XJR, EVO VII, STI8,5,2&WRX, 106 GTI&XSI, other crap.

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Paulm
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Re: Big turbos anyone?

Post by Paulm » Wed Jan 16, 2019 9:18 pm

Mr Footlong wrote:
Wed Jan 16, 2019 8:48 pm
If they were any good, I would have poss taken a punt for a laugh at that price, but I already break traction on command at anything below 70 currently (really, really wish I was lying, can't put the power down properly...) when I mildly mash the pedal and the wandering torque steer that nobody can dial out at all tells me no way.
MPS4s is the way forward. Awesome grip. I had MPSS on my M5 (700bhp) then changed to MPS4s and could not believe the difference.
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

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Mr Footlong
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Posts: 4320
Joined: Thu Nov 10, 2011 12:07 pm
Location: Stalking Kate Beckinsale

Re: Big turbos anyone?

Post by Mr Footlong » Wed Jan 16, 2019 9:46 pm

They won't make any difference to the wandering steering and back squatting down/front lightening up when on any sort of power. Three different good alignments, MRC's experience with her and two different sets of tyres tell me that. Once I am back on summer tyres, they will be the 4s and we can at least see regarding breaking traction then.
Current:

"Brutus"- C5 RS6 Avant - MRC stage 2 - Milltek non-res + 100 cell cats - Wagner ICs - PSS9 - H&R ARBs - OZ Superturismo LM - C6 Custom brakes - HD RNS-E - Various other bits - 555PS/832Nm

Gone:
"Taz"- C7 RS6 - MRC stage 2 - Milltek non-res + 100 cell cats, uprated fuel pumps, race plugs, 745PS/1095Nm
12' Cayenne Turbo, B7 RS4, S3, Cupra R, XJR, EVO VII, STI8,5,2&WRX, 106 GTI&XSI, other crap.

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Paulm
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Location: Aberdeenshire

Re: Big turbos anyone?

Post by Paulm » Wed Jan 16, 2019 11:32 pm

Mr Footlong wrote:
Wed Jan 16, 2019 9:46 pm
They won't make any difference to the wandering steering and back squatting down/front lightening up when on any sort of power. Three different good alignments, MRC's experience with her and two different sets of tyres tell me that. Once I am back on summer tyres, they will be the 4s and we can at least see regarding breaking traction then.
I agree, in your post you said traction not torque steer, MPS4s will 100% improve traction.

I have had 2 with Air and my current one is DRC. Although DRC corners flatter there is little or no difference with torque steer. Pretty <beep> for cars costing over 80K. My RS6 was stage 1 and a bit of a handful. S7 was also stage 1 but behaved much better (RS6 was 2015, S7 was 2017). My current RS7 is stock and although it does not have that weird tail end squirm of the RS6 it deffo has torque steer. I hoped going DRC would eliminate much of the issues unfortunately it has made little difference.

DRC = flatter cornering. AIR = lovely comfort / drive. pity we could not get the best of both worlds :)
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

User avatar
Mr Footlong
Cruising
Posts: 4320
Joined: Thu Nov 10, 2011 12:07 pm
Location: Stalking Kate Beckinsale

Re: Big turbos anyone?

Post by Mr Footlong » Thu Jan 17, 2019 8:22 am

The squirming/torque steer is awful imo and not acceptable on a car like this. My C5 is absolutely planted when you mash the pedal.

My bum tells me it is down to down to the back dropping too much on hard acceleration, but if the DRC ones bloody do it too, then I don't think I can be bothered to throw out the air and try aftermarket. So disappointed, wish the bloody wife never crashed the Cayenne, wiped the floor with both 6's in the handling department :(.

Anyhoo, back to turbos.
Current:

"Brutus"- C5 RS6 Avant - MRC stage 2 - Milltek non-res + 100 cell cats - Wagner ICs - PSS9 - H&R ARBs - OZ Superturismo LM - C6 Custom brakes - HD RNS-E - Various other bits - 555PS/832Nm

Gone:
"Taz"- C7 RS6 - MRC stage 2 - Milltek non-res + 100 cell cats, uprated fuel pumps, race plugs, 745PS/1095Nm
12' Cayenne Turbo, B7 RS4, S3, Cupra R, XJR, EVO VII, STI8,5,2&WRX, 106 GTI&XSI, other crap.

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MikeFish
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Joined: Tue Aug 31, 2010 9:23 pm
Location: The Middle of Somewhere

Re: Big turbos anyone?

Post by MikeFish » Thu Jan 17, 2019 9:06 am

Nick, only 888nm here but mine doesn't have any noticeable squirming or torque steer. I have the little wobble when accelerating / overtaking and crossing over the middle of the road / camber change but totally in control on the straight.

Yossarian
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Re: Big turbos anyone?

Post by Yossarian » Thu Jan 17, 2019 9:53 am

Mr Footlong wrote:
Wed Jan 16, 2019 9:46 pm
They won't make any difference to the wandering steering and back squatting down/front lightening up when on any sort of power. Three different good alignments, MRC's experience with her and two different sets of tyres tell me that. Once I am back on summer tyres, they will be the 4s and we can at least see regarding breaking traction then.
Mine is a 2017 on air and I also experienced this quite bad, Center of Gravity have improved it greatly now. I still get a little wiggle when crossing the camber in the middle of the road but not at all on a straight. Front still gets light as back squats, but traction is absolute and I am on MPSS (will be swapping to 4S as needed and expect it to get better).

http://www.centregravity.co.uk/

Steve

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Paulm
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Location: Aberdeenshire

Re: Big turbos anyone?

Post by Paulm » Thu Jan 17, 2019 11:44 am

Mr Footlong wrote:
Thu Jan 17, 2019 8:22 am
The squirming/torque steer is awful imo and not acceptable on a car like this. My C5 is absolutely planted when you mash the pedal.

My bum tells me it is down to down to the back dropping too much on hard acceleration, but if the DRC ones bloody do it too, then I don't think I can be bothered to throw out the air and try aftermarket. So disappointed, wish the bloody wife never crashed the Cayenne, wiped the floor with both 6's in the handling department :(.

Anyhoo, back to turbos.
Same here. I had a C6 mapped to around 700bhp. 100% planted, awesome car. in terms of dealing with the power these are definitely a step back. I wonder if a limited slip diff in the front would help things?? Not sure anyone even produces one?
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

User avatar
Paulm
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Posts: 1661
Joined: Tue Jan 06, 2004 12:23 pm
Location: Aberdeenshire

Re: Big turbos anyone?

Post by Paulm » Wed Jan 30, 2019 6:22 pm

Mr Footlong wrote:
Thu Jan 17, 2019 8:22 am
The squirming/torque steer is awful imo and not acceptable on a car like this. My C5 is absolutely planted when you mash the pedal.

My bum tells me it is down to down to the back dropping too much on hard acceleration, but if the DRC ones bloody do it too, then I don't think I can be bothered to throw out the air and try aftermarket. So disappointed, wish the bloody wife never crashed the Cayenne, wiped the floor with both 6's in the handling department :(.

Anyhoo, back to turbos.
Done a good bit of driving over the last week or so. My RS7 does not squirm around at the back like my RS6 but deffo has torque steer. What I have found is, if I put the rear diff in comfort it more or less eliminates the torque steer. Anyone else found this?? I am still stock, going stage 1 might out me back to square one though?
BMW 540i
2018 GTR
F90 M5
X3MC
RS3 Saloon
RS7 FL best car I've owned. No faith in turbo oil screen (turbos failing) or sticking oil scraper ring causing missfires.
F10 M5 LCI still no rear grip lol
S7 black Edition Too big and heavy
S3 8V FL DSG 310ps, road noise is a joke
RS3 8P Rubbish
C7 RS6 Fantastic car but missed playing
GTR R35 800bhp, too extreme, crazy fast though
911 Turbo Remapped. Hated it
F10 M5, awesome but no rear grip
RS6 V10 700BHP crazy
Porsche Cayenne Turbo S 600bhp

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