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Last updated 02/06/2013 – Prices updated


DVA Power is a small company setup and run by Dave Andrews undertaking engine tuning and building, it is sited in Milton Keynes. Most popular engines are catered for but it specialises in the Rover K series engine as fitted to the Caterham Se7en, Lotus Elise, MGF and Rover saloon cars. DVA Power offers a number of off the shelf K series upgrade packages  from 135 to 190BHP. Bespoke tuning work with a proven track record  to over 280BHP is also available at reasonable prices.

DVAPower currently holds the outright power records for K series engines at the Emerald rolling road at 1700, 1800 and 1900cc, the DVAPower entry in the TunerGP for 2005 won the NA class outright in both mile and circuit. In 2006 the same car was the fastest NA car on the circuit.

In addition all types of engine work are undertaken including fitting and timing of cams and verniers, fitting of ECUs, fitting of throttle bodies and airbox kits, fitting of proven engine upgrades, fitting of forged pistons, full engine rebuilds and tried and tested cylinder head porting for bespoke upgrades.

All prices shown on these pages are what you pay, there is no VAT to add although there will be some postage and packing.

Some of you may have already seen the K series engine page.

All cylinder heads prepared by me are hardness tested and carefully peened on the fire ring before skimming to eradicate porosity. I normally provide modified heads on an exchange basis, if a customers head proves to be soft or unservicable then a surcharge will be made. VHPD heads are not available for exchange, only customer heads will be modified.

Below are links to two articles which have been heavily requested that are now available online

Fitting of Jenvey Throttle bodies

Fitting of verniers and timing cams

K series engine upgrade kits


For Caterham , Elise and MGF

135BHP K series kit
145BHP K series kit (SS alternative)
150BHP K series kit
155BHP K series kit
160BHP K series kit
170BHP K series kit
180BHP K series kit

For higher outputs please call.

For Caterham Supersport

SS drivability kit
SS 150BHP kit
SS Throttle body 160 kit


For Elise S2/S1 Caterham EU2/EU3 and MGF

S2 135BHP K series kit
S2 150BHP K series kit
S2 155BHP K series kit


For higher outputs please call.

For Elise S135

145BHP kit
170BHP kit

For Elise S160

S160 drivability kit
S160 175BHP kit

For Caterham SLR / Elise VHPD

VHPD Drivability kit

For Caterham VVC / Elise 111S VVC / MGF VVC

VVC 170BHP kit
VVC 185BHP kit


Other products/services


M3DK engine management
Jenvey DTH throttle bodies
Catertham/Elise cold airbox kit
Pricelist for parts and services




K01 - 135BHP kit, (gives 135BHP+ on 1800K, 130BHP+ on 1600K)

Comprises

Pair of Piper fast-road cams(choice of 3 profiles), pair of verniers,cam oil seals, cam lube and sealant

Price of Kit 610
Fitting above kit to Caterham seven 250
Fitting above kit to Lotus Elise 300
Fitting above kit to MGF/ZR 310
Supply and fit optional 52mm TF160 TB 130



K02 - 145BHP kit, (gives 145BHP+ on 1800K , 140BHP+ on 1600K)

An alternative to the Caterham Supersport kit but with user programmable Emerald K6 ECU. Provides a useful power boost throughout the rev range and greatly improved driveability, although the kit is supplied with a suitable map the ECU  is entirely user programmable for any future upgrades.

Comprises

Pair Piper fast-road cams (choice of 3 profiles),
Emerald 32bit K6  ECU with suitable map (ECU comes with manual software and cable and has map switching capability)
Cam oil seals, cam lube and cam ladder sealant

Price of Kit 1120
Fitting above kit to EU2 Caterham seven 320
Fitting above kit to EU2 Lotus Elise 330
Fitting above kit to MGF/ZR 355
For EU3 engines add 120 to fitting costs
Verniers for above kit 260 (includes fitting and setting cam timing if kit being fitted)
Supply and fit optional 52mm TF160 TB 130


K03 - 160BHP kit (gives 160BHP on 1800K, 155BHP+ on 1600K)

Similar to the 145BHP kit but including work to your cylinder head to improve volumetric efficiency. Gives large gains in torque and much better drivability. Kit comes ready mapped but the ECU is entirely user programmable. Head retains standard valve sizes and is on an exchange basis.

Comprises

Pair Piper fast-road cams (choice of 4 profiles)
Emerald 32bit K6 ECU (ECU comes with manual software and cable and has map switching capability)
Porting work to your cylinder head
Appropriate oil seals, sealants etc.
Latest type head gasket, head bolts and manifold gaskets

Price of Kit 1850
Fitting above kit to EU2 Caterham seven 425
Fitting above kit to EU2 Lotus Elise 465
Fitting above kit to MGF/ZR 495
For Elise/MGF/ZR with air conditioning add 100 to fitting costs
For EU3 engines add 120 to fitting costs
Verniers for above kit 260 (includes fitting and setting cam timing if kit being fitted)




K04 - 165BHP kit (Gives 165BHP+ on 1800K, 160BHP+ on 1600K) 

Originally developed by Dave Walker at Emerald. Gives excellent power increase across the range and much improved drivability and throttle response comprising Jenvey DTH throttle bodies with composite trumpets and fuel rail mountings, Pair Piper fast road cams(choice of 3 profiles), Emerald K6 ECU with suitable map and all gaskets and oil seals necessary to fit

Click here for dyno comparison between stock 1800 and K04 kit
Click here for dyno comparison between  Caterham 1800 SS and k04 kit

Price of Kit 1860
Fitting above kit to EU2 Caterham seven 425
Fitting above kit to EU2 Lotus Elise 490
Fitting above kit to MGF/ZR 520
For Elise/MGF/ZR with air conditioning add 100 to fitting costs
For EU3 engines add 120 to fitting costs
Verniers for above kit 260 (includes fitting and setting cam timing if kit being fitted)
Optional airbox kit with 90mm trumpets for Caterham seven 365 50  fitting
Optional airbox kit with 90mm trumpets for Lotus Elise 395 75  fitting
Optional airbox kit with 90mm trumpets for MGF 395 85  fitting



K05 - 185BHP kit (Gives 185BHP on 1800K, 175BHP+ on 1600K)

Gives massive gains in power and torque through the rev range and fantastic throttle response. Comprising Jenvey DTH throttle bodies with composite trumpets and fuel rail mountings, pair BP285H cams, Emerald K6 ECU with suitable map, all gaskets, oils seals, heads bolts and including extensive cylinder head work with big inlet valves and piper springs.
Click here for dyno comparison between stock 1800 and k05 kit
Click here for dyno comparison between Caterham SS 1800 and K05 kit
Click here for dyno comparison between Caterham R400 and K05 kit.

 

Price of Kit 2800
Fitting above kit to EU2 Caterham seven 590
Fitting above kit to EU2 Lotus Elise 625
Fitting above kit to MGF/ZR 675
For Elise/MGF/ZR with air conditioning add 100 to fitting costs
For EU3 engines add 120 to fitting costs
Verniers for above kit 260 (includes fitting and setting cam timing if kit being fitted)
Optional airbox kit with 90mm trumpets for Caterham seven 365 50  fitting
Optional airbox kit with 90mm trumpets for Lotus Elise 395 75  fitting
Optional airbox kit with 90mm trumpets for MGF 395 85  fitting



K06 - 185BHP kit for VVC engines, gives 185BHP+

Gives excellent power increase across the range and much improved drivability and throttle response comprising Jenvey DTH throttle bodies with composite trumpets and fuel rail mountings, Pair Piper fast road cams for VVC engine, VVC blanking kit, Emerald K6 ECU with suitable map and all gaskets and oil seals necessary to fit. This kit replaces the VVC mechanisms and cams with solid camshafts and blanks off the VVC mechanisms

Price of Kit 2000
Fitting above kit to EU2 Caterham seven 445
Fitting above kit to EU2 Lotus Elise 500
Fitting above kit to MGF/ZR 525
For Elise/MGF/ZR with air conditioning add 100 to fitting costs
For EU3 engines add 120 to fitting costs
Verniers for above kit 260 (includes fitting and setting cam timing if kit being fitted)
Optional airbox kit with 90mm trumpets for Caterham seven 365 50  fitting
Optional airbox kit with 90mm trumpets for Lotus Elise 395 75  fitting
Optional airbox kit with 90mm trumpets for MGF 395 85  fitting


K06a - 170BHP kit for VVC engines, gives 170BHP+

Gives a very useful power and torque increase across the range and especially between 4500 and 7200, comprising a fully ported cylinder head, retiming of the VVC inlet camshafts and improved exhaust camshaft  together with all gaskets, oil seals and head bolts necessary to fit. This kit retains the original VVC mechanisms and standard ECU. The head is provided on an exchange basis. Fitting includes work to your exhaust manifold and inlet plenum.

Recent examples have given 175BHP and 179BHP/140ft/lb respectively

Click here for dyno comparison between stock VVC Elise and K06A kit

Price of Kit 1050
Fitting above kit to EU2 Caterham seven 495
Fitting above kit to EU2 Lotus Elise 545
Fitting above kit to MGF/ZR 575
For Elise/MGF/ZR with air conditioning add 100 to fitting costs
Supply and fit optional 52mm TF160 TB 130


K07 - Drivability upgrade for Lotus Elise S160

Improves road manners very markedly. Comprises Piper vernier pulleys which allow the cams to be properly timed and an Emerald  K6 ECU with suitable map. The K6 is user programmable and comes complete with software and comms cable.

Price of Kit 900
Fitting above kit to EU2 Lotus Elise 240
Supply and fit optional 52mm TF160 TB 130


K08 - Upgrade kit for Lotus Elise S160, gives 175BHP+ and much improved road manners.

Comprising Jenvey DTH throttle bodies with composite trumpets and fuel rail mountings, pair Piper verniers, Emerald K6 ECU with suitable map, and all gaskets required

Price of Kit 1650
Fitting above kit to EU2 Lotus Elise(includes cam timing) 400
Optional airbox kit with 90mm trumpets for Lotus Elise 395 75  fitting




K09 - Upgrade kit for Lotus Elise S135/PTP140, gives 145BHP+ and improved torque.

Comprises a pair of Piper fast road cams (choice of 3 profiles) , a pair of verniers, oil seals, cam lube and sealant.

Price of Kit 610
Fitting above kit to Lotus Elise 135 300
Supply and fit optional 52mm TF160 TB 130



K10 - Upgrade kit for Lotus Elise S135/PTP140, gives 170BHP+ and improved torque

Gives excellent power increase across the range and much improved drivability and throttle response comprising Jenvey DTH throttle bodies with composite trumpets and fuel rail mountings, Pair Piper fast road cams(choice of 3 profiles), Emerald K6 ECU with suitable map and all gaskets and oil seals necessary to fit

Price of Kit 1860
Fitting above kit to S1 EU2 135 Lotus Elise 490
For EU3 engines add 120 to fitting costs
Verniers for above kit 260 (includes fitting and setting cam timing if kit being fitted)
Optional airbox kit with 90mm trumpets for Lotus Elise 395 75  fitting


K11 - Upgrade/drivability kit For VHPD engine

The VHPD engine suffers with bad cam timing and less than optimum mapping. This kit comprises a fully programmable Emerald K6 ECU with suitable map and a pair of Piper verniers. This greatly improves idle and progression together with much improved mid range torque, and lifts the engine to a proper 190BHP

Price of Kit 900
Fitting to EU2 Caterham Seven (includes cam timing) 200
Fitting to EU2 Lotus Elise (includes cam timing) 260
Fitting to Lotus Exige (includes cam timing) 395



K12 - S2 Elise/EU3 Caterham 135BHP kit

Comprises pair of Piper fast-road cams(choice of 3 profiles), a pair  verniers,cam oil seals, cam lube and sealant

Price of Kit 610
Fitting above kit to Caterham seven 250
Fitting above kit to Lotus Elise 300
Fitting above kit to MGF/ZR 310
Supply and fit optional 52mm TF160 TB 130



K13 - S2/S1 Elise . MGF and Caterham 155BHP kit

Includes a fully ported big valve cylinder head with larger REC inlet and exhaust valves , the head is fitted with Piper fast road cams and Piper springs with Piper steel caps to allow later fitment of more aggressive cams later if desired. The head  as modified  flows enough air for 200BHP so is ideal when later upgrades are planned. Gives large gains in torque and much better drivability. Works with the standard EU2 and EU3 ECU.

Work to the cylinder head includes extensive porting to both inlet and exhaust ports, heavy modification to the combustion chamber , radiused valve seats and tapered guides. The valves are stainless steel and tufftrided and fully lapped to the seats. Inlet valve size is 29.5mm and exhaust size is 26mm. The valve springs will accomodate all cams up to 11.5mm lift.

Recent examples have given more than 160BHP and over 140lb/ft of torque.

Comprises

Pair Piper fast-road cams
Extensive porting work to your cylinder head including REC valves / new guides and Piper springs
Modification work to your plenum and exhaust manifold (included in fitting)

Price of Kit 1600
Installation kit (head gasket, bolts, gaskets and oil seals) 130
Fitting above kit to Caterham seven 400
Or fitting above kit to S1/S2 Lotus Elise 450
Or fitting above kit to MGF/ZR 470
Verniers for above kit (includes fitting and setting cam timing 260
For Elise with air conditioning add 100
Supply and fit optional 52mm TF160 TB 130
Supply  fit and calibrate optional Emerald K6 ECU to EU2 engine 740
For emerald install to EU3 engines add 125


K13A - S2/S1 Elise, MGF and Caterham 150BHP kit

Includes a  ported cylinder head with standard sized inlet and exhaust valves, the head is fitted with Piper fast road cams . The head must be provided by the customer and as modified  flows enough air for 175BHP so is ideal when later upgrades are planned. Gives large gains in torque and much better drivability. Works with the standard S1 and S2 ECU.

Unlike other conversions head work includes full porting to both inlet and exhaust ports, modification of exhaust valves to improve airflow ,tapering of inlet valve guides and work to the combustion chamber to improve airflow and combustion.

Recent examples on 1800K series Elise have given up to 159BHP and 138lb/ft.

Click here for dyno comparison between stock Elise and K13A kit

Comprises

Pair Piper fast-road cams (choice of 3 profiles)
Extensive porting work to your cylinder head
Modification work to your plenum and exhaust manifold (included in fitting)

Price of Kit 1050
Installation kit (head gasket, bolts, gaskets and oil seals) 130
Fitting above kit to Caterham seven 400
Or fitting above kit to S1/S2 Lotus Elise 450
Or fitting above kit to MGF/ZR 470
Verniers for above kit (includes fitting and setting cam timing 260
For Elise with air conditioning add 100
Supply and fit optional 52mm TF160 TB 130
Supply  fit and calibrate optional Emerald K6 ECU to EU2 engine 740
For emerald install to EU3 engines add 125


K14 - Caterham Supersport drivability kit

The Caterham superport cams are very rarely properly timed which gives bad road manners and poor drivability, typically the inlet cam is retarded by up to 15 degrees which greatly reduces low and mid range torque. This kit comprises a pair of Piper verniers which when properly set can improve mid range torque substantially (up to 15lb/ft). Throttle response and drivability is markedly improved.

Price of Kit 200
Fitting to EU2 Caterham Seven (includes cam timing) 180
Supply and fit optional 52mm TF160 TB 130



K15 - Caterham Supersport 150 kit (Gives 150BHP+ on 1800SS, 145BHP+ on 1600SS)

Includes a  ported cylinder head with standard sized inlet and exhaust valves, the head is fitted with your existing SS cams . The head must be provided by the customer and as modified  flows enough air for 175BHP so is ideal when later upgrades are planned. Gives large gains in torque and much better drivability. Works with the standard SS ECU.

Unlike other conversions head work includes full porting to both inlet and exhaust ports, modification of exhaust valves to improve airflow ,tapering of inlet valve guides and work to the combustion chamber to improve airflow and combustion.

Recent examples on 1800K SS have given up to 157BHP and 140lb/ft.

Click here for dyno comparison between 1800 SS and K15 kit

Comprises

Extensive porting work to your cylinder head
Modification work to your plenum and if necessary your exhaust manifold (included in fitting)

Price of Kit 700
Installation kit (head gasket, bolts, gaskets and oil seals) 130
Fitting above kit to Caterham seven 425
Verniers for above kit (includes fitting and setting cam timing 260
Supply and fit optional 52mm TF160 TB 130
Supply  fit and calibrate optional Emerald K6 ECU to EU2 engine 740
For emerald install to EU3 engines add 125


K16 - Caterham Supersport TB kit (Gives 160BHP+ on 1800SS, 150BHP+ on 1600SS)

Gives excellent power increase across the range and vastly  improved idle, progression, drivability and throttle response; comprising Jenvey DTH throttle bodies with composite trumpets and fuel rail mountings, Emerald K6 ECU with suitable map and all gaskets/fittings necessary to fit

Price of Kit 1450
Fitting above kit to EU2 Caterham seven 400
For EU3 engines add 120 to fitting costs
Verniers for above kit 285 (includes fitting and setting cam timing if kit being fitted)
Optional airbox kit with 90mm trumpets for Caterham seven 365 50  fitting



Emerald M3D Engine Management system


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The Emerald M3DK is a plug compatible replacement ECU for the Rover MEMS unit used on the K series, it utilises the existing engine sensors and works with distributor based systems and distributorless 'wasted spark' systems . It is compatible with the immobiliser as fitted to Elises and Caterhams.  It is fully programmable and comes complete with software, manual, comms cable and example maps. It has user tailorable soft and hard cut rev-limits and a user programmable shift light.

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Example screenshot from Emerald Software.

DVAPower are Agents for Emerald electronics

Emerald M3DK ECU  654

Emeralds Website

Jenvey Dynamics direct to head (DTH) throttle bodies

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Jenvey now to produce dual throttle bodies which bolt directly the the 'K' series cylinder head, the barrel spacing is the same as the port spacing on the head so they offer perfect port alignment and also do away with the need for a manifold. These are absolutely ideal for the engine and with a little modification and some small brackets can take the standard fuel rail pressure regulator and injectors. They are 42mm in size which has proved adequate for over 250BHP. They offer the simplest, cheapest and most suitable induction system for the 'K' series engine. They offer far better idle and progression than some other direct to head systems due to the very short distance between the throttle plate and the inlet port.



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Shown below is a picture of a pair of the bodies attached to a 'K' cylinder head, the only modification necessary is the mounting of the water jacket takeoff on the front body.

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Jenvey dual TB kit  560

Jenvey Dynamics website

Cold airbox kit for direct to head bodies


To complement the direct to head throttle bodies Auto-Teknix (Bernard Scouse0 have produced a complete cold airbox kit to fit the Lotus Elise / Exige and the Caterham seven which allows retention of the standard fuel rail and pressure regulator, or fitment of the Jenvey Fuel rail without needing spacers. it contains everything you need including the airbox, a throttle linkage, trumpets, backplate, trunking , large Pipercross cone filter(Elise/Exige only) and all fixings, it works out around half the cost of the equivalents. Below is a photograph of the Elise airbox kit fitted to the DTH bodies, it could be adapted if necessary to fit individual TBs or other types. The details of the kit are shown below the picture. The Caterham version has the air pickup facing in the other direction and has mouldings to clear the chassis member and clutch cable but is otherwise identical.


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The main features

Complete kit, includes air box, air filter (Elise/Exige version only), GRP trumpets , backplate fuel rail mounting, throttle linkage bracket, trunking and all fixings required.

Enables the standard K series fuel rail, fuel pressure regulator and injectors to be used without needing an external pressure regulator, which is adequate for engines up to about 210 BHP. Can also be used with the Jenvey fuel rail with minor modification, and does not need the 20 mm spacers.
I
n the Elise/Exige  installation, ducts cold air from the wheel arch intake directly to the engine and only intrudes 10 mm into the boot space.

The airboxes clever design allows retention of the existing fuel rail and integral pressure regulator thereby saving the cost of a new fuel rail (48+VAT) and pressure regulator (50). The throttle cable mount bracket (free with the kit) saves the cost of a throttle linkage and mount (103+ VAT) and the composite trumpets supplied with the kit would be approximately 100 to buy separately making the kit extremely good value for money.

Appearance is excellent. and it can be removed in a couple of minutes.


The kit consists of



Price for Elise/Exige kit 395

Price for Elise/Exige kit less filter and trunking 360
Price for Caterham kit 350



Auto-Teknix website


Parts and services price list

All prices are fully inclusive, no VAT will be added

 

 

 

Cylinder head porting

 

K series standard head

 

Quick and dirty port

300

Porting std valves

600

Porting big valve - inlet

80

Porting big valve - exhaust

80

 

 

 

 

K series VVC/VHPD head

 

Quick and dirty port

300

Porting std valves

600

Porting big valve - inlet

80

Porting big valve - exhaust

80

 

 

1800 or 2000 Zetec

 

Porting std valves

600

 

 

C20xe or C20let Vauxhall

 

Porting std valves

600

 

 

YB Cosworth 2 & 4wd

 

Porting for turbo applications

600

Porting Naturally aspirated, std valved

700

 

 

K series

 

 

 

Set Colsibro guides to suit K heads(not currently available)

POA

Set VHPD guides to suit K heads

POA

 

 

Set REC 29.5mm inlet valves (will fit modifed std insert)

POA

Set REC 26mm exhaust valves (will fit modifed std insert)

POA

 

 

Set REC 31.5mm (std VVC size) inlet valves

POA

Set REC 27.3mm (std VVC size) exhaust valves

POA

 

 

Set REC 32.5mm inlet valves (will fit modified VVC std insert)

POA

Set REC 28.3mm exhaust valves (will fit modified VVC std insert)

POA

 

 

Set shims to convert hydraulic followers to solid

64

Set shims to convert VVC hydraulic followers to solid

64

Set shims for Piper or similar solid followers

64

 

 

Shim solid cams

100

Strip clean and linish followers

32

 

 

Assemble head complete

65

Assemble VVC head including timing VVC mechs

85

Strip head complete and clean

50

 

 

 

 

Strip head, peen, skim, clean and re-assemble (includes cam seals and gloop)

160

 

 

Remove old guides, taper and fit new guides, remake seats

125

 

 

Emerald K6 ECU

699

 

 

Jenvey DTH bodies 42mm with fitting kit

625

Jenvey DTH bodies 45mm with fitting kit

625

 

 

Set Omega forged pistons with rings and circlips, xylon coated with larger reliefs

565

 

 

Airbox kit Elise with 90mm trumpets

420

Airbox kit Elise - no filter or adapter

385

Airbox kit Caterham

375

 

 

Latest Rover head gasket (Payen BW750)

34

Latest Land Rover Multi Layer steel head gasket with shim

38

Latest Land Rover uprated oil rail

55

Head gasket set, latest Payen gasket, steel dowels, cam seals, stem seals

 

in & ex gaskets (suitable for throttle bodies) etc.

90

Conversion set

33

Set of 10 OE head bolts

58

Set cam oil seals

16

 

 

Head skim

32

Peen fire ring area of head to minimise voids and porosity prior to skim

32

 

 

Supply pair of K series Piper cams

400

Supply pair of K series VVC cams

415

Supply pair of K series verniers

200

Supply VVC blanking kit

140

Piper single springs (for cams up to BP285H)

98

Piper double springs

150

Piper cambelt long or short type

33

Piper steel caps (will accept single or double springs)

78

 

 

Supply and fit pair of hydraulic cams (Caterham)

700

Supply and fit pair of verniers including retiming cams (Caterham)

360

Supply and fit hydraulic cams and verniers and time cams (Caterham)

960

 

 

Replace head gasket (Caterham, head peen and skim, add 150)

425

Replace head gasket (Elise, no A/C, head peen and skim add 150)

475

 

 



If you wish to speak to us about any of the above, or just want to discuss your options or ask advice, please email us at  Dave@DVApower.com    or 'phone on 01908 322652, please 'phone at a reasonable hour since the business line is in my home.