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My supercharger story
- Worcester_spoon
- Senior Member
- Posts: 1544
- Joined: Sat Apr 30, 2011 5:53 pm
- Location: Basingstoke, Hampshire
My supercharger story
So, as some may know, I was part of the group buy for the Infinitas/GPower supercharger a few months ago. It’s been a bit of a journey, but today, we finally have an MOT!
Here is a brief history of my life for the past few months
Supercharger arrives - super excited
Off to Ross at RBM to have it installed
Install all good (Ross and his team are awesome)
After a little bit of driving, gets a misfire
Back to RBM to check coils, plugs etc - all good, but new plugs installed
Still misfiring
Change MAF
Still misfiring
MOT due, so off for its inspection (in hope). Fails badly on emissions
Decide it must be a map issue - Inifintas swear it isn’t, but aren’t much help TBH
Contact Josh at Severn Tuning. Long chat, decide to upgrade injectors ahead of custom map
Injectors arrive - some install challenges but go in ok
New map from Severn Tuning - still running rich and very smoky
Replaced pre cat o2 sensors, start thinking about new cat…
Lots of diagnostics runs/tests and some head scratching with Josh
Josh works his magic, 2nd new map installed
Seems to be running ok so…
… off for MOT - gets a perfect emissions test score!
We’re back and legal again!
Now just need to start driving it - have run it around a bit during the process and it feels like it just has so much power on tap and urgency right through the rev range, so looking forward to giving it a proper test.
The injectors were 365cc (stock is around 240) so we should be getting somewhere around 340/350bhp, and at some point I’ll dyno it to find out.
Suffice to say, after a long 3 months working through the issues and spending way more money than originally planned, I’m a happy man. Huge thanks to Josh at Severn Tuning and Ross at RBM, recommend both highly.
Off to the Alps in July for a 6 day road trip including Furka, Stelvio and Grossglocker to play with all that power, and my new LSD.
Here is a brief history of my life for the past few months
Supercharger arrives - super excited
Off to Ross at RBM to have it installed
Install all good (Ross and his team are awesome)
After a little bit of driving, gets a misfire
Back to RBM to check coils, plugs etc - all good, but new plugs installed
Still misfiring
Change MAF
Still misfiring
MOT due, so off for its inspection (in hope). Fails badly on emissions
Decide it must be a map issue - Inifintas swear it isn’t, but aren’t much help TBH
Contact Josh at Severn Tuning. Long chat, decide to upgrade injectors ahead of custom map
Injectors arrive - some install challenges but go in ok
New map from Severn Tuning - still running rich and very smoky
Replaced pre cat o2 sensors, start thinking about new cat…
Lots of diagnostics runs/tests and some head scratching with Josh
Josh works his magic, 2nd new map installed
Seems to be running ok so…
… off for MOT - gets a perfect emissions test score!
We’re back and legal again!
Now just need to start driving it - have run it around a bit during the process and it feels like it just has so much power on tap and urgency right through the rev range, so looking forward to giving it a proper test.
The injectors were 365cc (stock is around 240) so we should be getting somewhere around 340/350bhp, and at some point I’ll dyno it to find out.
Suffice to say, after a long 3 months working through the issues and spending way more money than originally planned, I’m a happy man. Huge thanks to Josh at Severn Tuning and Ross at RBM, recommend both highly.
Off to the Alps in July for a 6 day road trip including Furka, Stelvio and Grossglocker to play with all that power, and my new LSD.
03 Z4R 3.0i/Silver/custom quad/330d brake upgrade/LSD/G-Power supercharger/FIC 365cc injectors/Severn Tuning map
- Zulu4
- Member
- Posts: 838
- Joined: Tue Mar 16, 2021 1:22 pm
- Location: Lincolnshire
My supercharger story
Cool
2007 3.0si Auto Sport Roadster. Whippy.
Previous:
2003 3.0i SE Roadster. Whippy.
Previous:
2003 3.0i SE Roadster. Whippy.
- 1536Z4
- Senior Member
- Posts: 1667
- Joined: Thu Nov 19, 2020 9:37 pm
- Location: North Shropshire
My supercharger story
Great news that you have hopefully got it all sorted . That drive through the Alps will definitely give it a good test . Don`t forget to take some photos .Worcester_spoon wrote: ↑Sat Apr 09, 2022 9:28 am Off to the Alps in July for a 6 day road trip including Furka, Stelvio and Grossglocker
Montego Blue E86 . MILV`s . Simpson Custom Manifold Race Exhaust . xHP transmission stage 3 . VT engine mounts . BC RA coilovers . H&R arbs . Adjustable rear camber arms . Ultra Racing front strut brace . Drexler LSD .
- Mr Tidy
- Legend
- Posts: 24001
- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
My supercharger story
Good to know you finally got there.
340 bhp and an LSD work pretty well in a Z4!
340 bhp and an LSD work pretty well in a Z4!
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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OnlineBarty
- Senior Member
- Posts: 1059
- Joined: Mon Aug 09, 2021 5:02 pm
- Location: Netherlands
My supercharger story
Awesome write-up, thanks for sharing. Keep those experiences coming, they’re extremely valuable to dreamers such as myself
Four Alfa's and a Ducati later, I've turned to the dark side...
"Drive German, wear Italian, kiss French"
Z4: Tiefgrüen Metallic E86 3.0Si / Insta @bartsbuilds
"Drive German, wear Italian, kiss French"
Z4: Tiefgrüen Metallic E86 3.0Si / Insta @bartsbuilds
- sars
- Lifer
- Posts: 7046
- Joined: Sun Feb 21, 2010 11:37 am
- Location: East Yorkshire
My supercharger story
Awesome mod and well done for persevering
Gorgeous SFR Z4 M40i
Gone 2017 Iridium SL400, 2015 435d xDrive Convertible, 2012 E350 CDi Convertible, 2010 DSB Z4 sdrive30i, 2008 Audi A4 Cabriolet, 2006 Phoenix Yellow Z4 2.5Si, 2003 Saab 9-3 Convertible
Gone 2017 Iridium SL400, 2015 435d xDrive Convertible, 2012 E350 CDi Convertible, 2010 DSB Z4 sdrive30i, 2008 Audi A4 Cabriolet, 2006 Phoenix Yellow Z4 2.5Si, 2003 Saab 9-3 Convertible
- buzyg
- Legend
- Posts: 26598
- Joined: Fri May 20, 2011 6:11 pm
- Location: Cornwall
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- Lifer
- Posts: 6401
- Joined: Fri Jun 05, 2009 11:36 pm
- Location: Ayrshire,Scotland
My supercharger story
Good result,and glad it got sorted.
Good work by Rbm and Severn tuning by the sounds of it.
Enjoy
I just wish someone with an M would post from the group buy,on their installs.
Good work by Rbm and Severn tuning by the sounds of it.
Enjoy
I just wish someone with an M would post from the group buy,on their installs.
Interlagos Blue M RDSTR,2008. Logic7 dsp Hifi;satnav,stubby,htd seats,etc,etc.
Black 2005 3.0i NOW SOLD(and missed)
-
- Member
- Posts: 534
- Joined: Thu Nov 12, 2015 11:40 pm
My supercharger story
I bet that’s going to be fun to drive, time to enjoy
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- Member
- Posts: 424
- Joined: Sun May 16, 2021 8:01 am
My supercharger story
Nice job what was the final bill
Did you do any brake or suspension upgrades to cope with the extra horses
Did you do any brake or suspension upgrades to cope with the extra horses
2004 z4 3.0i Sterling silver
x5 40d m sport black sapphire metallic
Transit custom
x5 40d m sport black sapphire metallic
Transit custom
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- Lifer
- Posts: 3437
- Joined: Tue Sep 29, 2020 10:37 pm
- Location: North Hampshire
My supercharger story
I was lucky enough to see this car in the metal today. What a beast! The supercharger kit seems like a quality piece of engineering and works very effectively
Always good to see another forum enthusiast too.
Always good to see another forum enthusiast too.
2003 Maldives Blue 3.0i auto
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
- mac27040
- Lifer
- Posts: 3511
- Joined: Wed Oct 26, 2011 5:17 pm
- Location: Shepshed
My supercharger story
What boost does that kit make ?
3.0i SMG Supercharged,19" CSL, AvinUSA android 10.25” screen,DSP,M6 gearknob,Coilovers,Aero F-bumper,M r-bumper,Aero skirts,Facelift front & rear lights,M sports seats,Carbon Steering wheel,Intravee,Rervese cam,Hydrographics
- mac27040
- Lifer
- Posts: 3511
- Joined: Wed Oct 26, 2011 5:17 pm
- Location: Shepshed
My supercharger story
What boost does that kit make ?
3.0i SMG Supercharged,19" CSL, AvinUSA android 10.25” screen,DSP,M6 gearknob,Coilovers,Aero F-bumper,M r-bumper,Aero skirts,Facelift front & rear lights,M sports seats,Carbon Steering wheel,Intravee,Rervese cam,Hydrographics
- mac27040
- Lifer
- Posts: 3511
- Joined: Wed Oct 26, 2011 5:17 pm
- Location: Shepshed
My supercharger story
G-power state 310bhp for your kit
3.0i SMG Supercharged,19" CSL, AvinUSA android 10.25” screen,DSP,M6 gearknob,Coilovers,Aero F-bumper,M r-bumper,Aero skirts,Facelift front & rear lights,M sports seats,Carbon Steering wheel,Intravee,Rervese cam,Hydrographics
- Worcester_spoon
- Senior Member
- Posts: 1544
- Joined: Sat Apr 30, 2011 5:53 pm
- Location: Basingstoke, Hampshire
My supercharger story
But G Power don’t take into consideration the upgraded injectors and custom map… Trust me, it’s way more the 310.
03 Z4R 3.0i/Silver/custom quad/330d brake upgrade/LSD/G-Power supercharger/FIC 365cc injectors/Severn Tuning map