E92 335i Handling Upgrades
By Thorney Motorsport

Thorney Motorsport 335i Handling Upgrades
For the 335i we will be offering a wide range of chassis upgrades. The chassis is already a very good one, but as with the E92 M3 as soon as you tease it with a track session it falls apart.
Thorney Motorsport BMW E90/91/92/93 335i Stage 1 Handling Upgrades
Fast Road Geometry Setup
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Vehicles arrive from the factory with fairly benign settings. The manufacturers don't want hundreds of people throwing themselves into hedgerows at every corner. This does mean that handling is compromised. With standard suspension we are obviously limited by what we can do, but we can certainly extract the some more fun from the chassis. We have a complete 4-Wheel alignment rig at HQ in Milton Keynes. To progress further you'd need to introduce suspension changes, either springs or fully adjustable coilovers from Nitron or Moton. See details below. Fast Road Geometry setup prices are based upon our hourly rate. It usually takes 60-90 minutes to complete. |
Price List Fast Road Geometry Setup: £150 |
Thorney Motorsport BMW E90/91/92/93 335i - Stage 2 Handling Upgrades
Eibach Pro Kit Lowering Springs & Fast Road Geometry Setup
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The results from our stage 2 are pretty impressive, the car is 40mm lower and combined with more aggressive toe and camber settings front and rear the handling is dramatically improved. Turn in on corners and roundabouts has less roll and bounce and mid corner grip is enhanced by less loading up of the dampers due to overly soft springs. Ride is harder but its not harsh and overall the car looks and drives better in every regards; not bad for a few hundred quid. |
Price List Fast Road Geometry Setup: £150 |
Thorney Motorsport BMW E90/91/92/93 335i - Stage 3 Handling Upgrades
Bilstein B14/B16 Suspension Kit Upgrades
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The Bilstein kit is the first step in adjustable ride height suspension. The B14 is only ride height adjustable, and has set bump & rebound settings. They are surface coated to prevent corrosion, and have Bilstein's infamous mono-tube technology. The ride height adjustment is -30 to -50mm from standard ride height. As with all Bilstein products, they are TUV approved. The B16 kit takes the car one step further by adding adjustable damper settings. Ranging from 1-10, the car's dynamics can be adjusted by a dial at the foot of the shock body. A further option for the B16 kit (which we run in our 335i Demonstrator) is the 'Ridecontrol' feature. With a touch of the 'Sport' button placed at the drivers chosen location, instant firming of the dampers occurs. |
Price List Bilstein B14 Suspension Kit: £1,240.00 |
Thorney Motorsport BMW E90/91/92/93 335i Stage 4 Handling Upgrades
Nitron & Moton Coilover Suspension Kit Upgrades
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Fully adjustable suspension is the only way to truly transform the handling of your 335i. Using either Nitron or Moton coilovers (as we use on our CSL Cup cars) we are able to tailor your car to your track / road needs. Monotube shocks are as it sounds, they have a single tube in the construction, this means that they can run larger diameter piston which allows for a larger volume of oil in the shock. The more oil used means the less the shock is affected by heat build up and so the damping retains consistency in its use, it also means the shock is a lot lighter than a dual tube design (which has another tube inside the outer). However the best attribute about monotube shocks is that their adjustment is very sensitive, a single click on the adjustment can make a huge difference to how the shock feels on the car, thats very different to dual tube where you really are limited to how much adjustment you can really get. All F1 cars use monotube shocks.
£1,735 Supplied The first step in the coilover ladder. The Sport kit is a 1-Way bump & rebound adjustable kit fitted with TMS specified Eibach Springs. The single adjuster sets bump & rebound together for a more road-based setup. Nitron NTRSport+ Coilover Kit: £2,060 Supplied The NTRSport+ kit is as per the NTRSport kit but adds adjustable front top mounts. These are camber & caster adjustable. If you're serious about taking your 335i on track then the Sport+ kit is the way to go. Nitron NTRTrack Coilover Kit: £3,356 Supplied The ultimate in Track-Day spec 335i Suspension by Nitron. Adding stainless steel ball bearing top mounts, Independant Bump & Rebound adjustment & remote "piggy-back" reservoirs on the shock bodies. These are for circuit oriented cars, they come preset with C-Spanners, bearing spacers & Eibach springs. Moton SS 1-Way Coilover Kit £2,958 Supplied Offering a single adjuster for both Bump & Rebound the SS1 is perfect for on-road and on-track usage. The SS1 utilises your standard BMW top mounts also. |
Price List Nitron NTRSport Suspension Kit: £1,735.00 |
Thorney Motorsport BMW E90/91/92/93 335i Stage 5 Handling Upgrades
Moton & Nitron Competition Coilover Suspension Kit Upgrades
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Nitron NTRRace Coilover Kit £4,004 Supplied Top dog Nitron – fully three way adjustable remote reservoir suitable for racing and used to great effect by Dan Stringfellow in the CSL Cup. Moton Competition Kit From: £4,495 Supplied Please contact us for more information and to discuss your requirements on the Moton Competition application for the E9X 3-Series. There are 2, 3 and 4-Way kits available. Prices start at £4,495 + VAT for the 2-Way kit. |
Price List Nitron NTRRace Suspension Kit: £4,004.00 |

