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EVOMS Diverter Valve Fitting

These are the components of your kit -

Step 1: assembling your kit.

Take your top hat (this will be the red or black anodized part with the evoms logo engraved) Fit the slightly smaller of the two largest o rings into the machined groove.

Step 2: Take the two small, fat, o rings and place them in the machined ridges in the piston housing. Take care to get them seated well.

Step 3: Take your piston and lubricate it, you dont need alot of grease - just enough to add a thin film to the outside.

And place the piston into the piston housing, move it in and out a few times to ensure a smooth operation.

Step 4: Now place the spring into its seat inside the piston.

Step 5: now mate the two halfs of the diverter valve

I find it easiest to grab three nuts to wind onto the bolts supplied just to give your hands a break, otherwise you have to keep the two halves together somehow.

With this done you can now fit the remaining two o rings. Be carefull as they might slip off as you carry the valve about, please ensure they are fitted when you come to fit the valve to the turbo!

Step 6: Fitting your diverter valve.

If you wanted this could be done before you assemble your EVOMS valve, just depends which way you would rather.

Use a 5mm allen key to remove the stock blow off valve.

With the valve removed you can see your old diaphragm design.

Step 7: With the valves side by side you can see the obvious advantages of the EVOMS diverter valve. Air is only vented by the piston in the direction of natural flow. This improves throttle response greatly!

Install your valve taking car to angle the diverter outlet 'up' the inlet pipe - towards the sky! (this is the pipe that attaches to your airbox/flowmaster)

Now fix it in place with the bolts.

And there you have it! Now go out and enjoy!

Note: Pictures are taken with turbocharger off the car, for photography purposes only - i would just like to make clear you should NOT take your turbo off to fit the EVOMS diverter valve.

Regal Autosport take no responsibility for any fitment issues due to following this guide. I have taken care to detail every step you need - if you have any further questions give us a call on 02380558636 and we can answer them

Corsa VXR Intercooler Fitting

Ive tried to write it with a little humor in mind, dont worry about rushing - if you set aside two hours on a nice afternoon you will easily complete the job with time to spare.....enjoy!

Step 1 - Get your car up on ramps if you are lucky enough to have them, or secure the car on axle stands. Its a good idea to get the car as high as is possibly safe. It makes life easier.

Step 2 - Unclip your foglight loom connections.

And undo the bolts that fix the air dam to the cross member...there are 5 T20 bolts here...

undo the two torx bolts that retain the bumper (again, two T20 bolts each side of the car)...

Step 3 - Now you can remove the 4 8mm grille bolts that fix the bumper assembly to the slam panel and take off the front bumper - pop the sides out and pull it forward, its possible by yourself, but a good idea to get a quick hand from a friend/long suffering other half/passer by .... just to make sure you dont scratch it.

Put the bumper somewhere safe for now. You wont need it for another 56 minuites

Make sure you unclip the ambient air temp sensor from the lower grille bar!

You will now be able to see the standard intercooler...

Step 4 - Now down to the nitty gritty. Begin to remove the intercooler hose retaining clips. There are 3

And unclip the intercooler pipe...

Step 5 - Now begin to remove the plastic crash bar. 2 13mm's each side...

and one rivet. dont totally remove the rivet, you can use this to help locate the bar later...

Step 6 - Remove the 2 8mm's that hold the OE intercooler in and disgard them, the intercooler is also held in with pins so dont worry - it wont drop!

you can now lift it out off the pins.

Step 7 - Now remove the rest of the intercooler hoses.

Step 8 - and remove the bayonet clips from the ends with a hacksaw, be careful not to cut through the hose.

Remember to remove ANY swarf!

Which will leave you with this...

Step 9 - Now remove the aluminium crash bar bolts to give you some working space, there are two nuts and bolts, one at each end with E12 and a 13mm heads.

Step 10 - push the intercooler onto the bottom mounts, its a nice snug fit so be brave

Note here the sweeping inlet pipe - one of the key reasons why the Blizzard cooler is so efficient - ALL of the bar and plate core is utilised

Step 11 - now put the crash bar back into position, with the bolts through it (but dont re-tighten at this point) and offer up the intercooler to the crash bar.

You can now drill the top mounts for the intercooler with an 8mm drill bit, be very very carefull her not to slip and go through the radiator or intercooler!!

you can now fix the intercooler to the crash bar with 2 M8 bolts.

You can now re-tighten the aluminium crash bar bolts and refit the lower crash bar.

Step 12 - With 20 mins left to go grab your modified boost hoses and refit them

You may have to heat them up a little - hot water from a kettle should be fine if you dont have access to a heat gun.

Step 13 - Now Check all the hoses for tightness and resecure the hoses with the hose clips.

Step 14 - Good job! Admire your work, make a cup of tea and gear yourself up to refit the bumper... in true Haynes style - refitting is the reverse of removal

Note: how the original lower crash bar acts as an air deflector, directing air throught the core of the intercooler.

This guide is for reference only, as much as i have tried to include everything possible Regal Autosport are not liable for any malfunction in common sense or disregard for personal safety

I hope those who use it find it helpful, and it makes the fitting of the intercooler even easier than it otherwise would be

Powerflex Bush Fitting/Removal

Click here to view the instructions.

Dbilas Flowmaster for Z20LET (and Astra VXR)

Some customers have asked us to compile a fitting guide for the Z20LET (And Astra VXR) Flow master Kits...here it is!

Not all Z20LET applications are the same, you have the Zafira, Coupe and Hatchback models which all need to be accommodated for.

This also largely applies to the Astra VXR kit, the method of filter mounting is the same however there are small hose route changes.

As such the brackets in the kit should be seen as a starting point, you must tailor the brackets to guarantee a perfect install. A simple twist of the filter housing is usually all that is needed to ensure a perfect fit.

This is your flow master kit.

Begin to remove the original air box and air hoses.

Now Trial fit your flow master housing with the brackets as they are supplied.

Now mock up the rest of the hoses, note the flexi hose coming off the filter housing - it is essential the hoses are in this order.

At this point, ensure the filter sits at around this angle and does not foul on the bonnet when closed. The filter housing may need to be 'twisted' on the brackets.

With the filter sat correctly it is now time to lengthen the loom to the AFM.

Simply extend the loom by soldering extra wire length and heat shrink the joints.

Now refit the loom tube and connect AFM, Fix all pipes with jubilee clips and route breather extension.

Online Catalogue > Fitting Instructions