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PWC Parts co.



Engine-Tech Water Jacket Kit for X-Charger Supercharger Housing ET-WJ


Engine-Tech Water Jacket Kit for X-Charger Supercharger Housing ET-WJ

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Product Description

Engine-Tech Water Jacket Cooling System

Fits: 255/260hp SC Models with 4 posts

ET is proud to announce this new innovative fully Billet O-ringed water cooler Cover.

The back side of ET Water Cooler is CNC machined to the contour of the OEM housing using surfacing also O-ringed.

Made from 6061-T6 Aluminum, Anodized black for corrosion resistance.

Safely used with all OEM and ET Chargers, we use spacers so that ensures that the casting is thick and strong, 7mm thick or .275 thow.

It's easy to install without any modifications to the OEM Front housing.

Comes with bolts, fittings and orings.

The results are better then expected! Dropped the housing temp by 45 deg in a 20lb setup. 

Less boost fade. Improve bearing and seal life also less under hood heat


Very important : Requires a RESTRICTOR before the inlet down to 1/4 or 6.5mm. Out has to be 1/2 id or 12mm all way through out the hull. This is to keep preasure down less than half but good volume.

The Restrictor will be supplied.

Other Aftermarket Superchargers that machine the housing without spacer may have thinner housings.

In that case you will have to restrict the water more.

We At Engine-Technologies inc. are not responsible for any damage that is caused by adding this product to other Chargers on the market. Recommend 3/16 or 5mm restricter before the ET Water Cooler.

You may want to contact your Charger Manufacturer for their recommendations.

Important: In order to use this Product you will have to have the posts, most of the 255 have them. Make sure you have them before ordering!

Patent Pending - On the 2 stage o-ring  groove technology

Instructions for installation:

1 Apply grease over the OD of the S/C flange.

2- Install the 2 thick O-rings supplied. This is for corrosion purposes.

3- Install the outer O-ring into ET Water Cover. Make sure it is seated in the grove.

4- Install or make sure the Inner O-ring is seated in deep in the grove this may take some force.

5- Inspect your Supercharger housing for any casting slag.

6- Make sure you S/C cover is not corroded. It should have paint to prevent corrosion down the road.

If it corrodes through water may enter the engine and cause damage.

7- Now add more grease around the SC Flange and on the inner o-ring this is going to help slid the

cover over the hump.

8- Slid the ET Billet Cover on the first part of the flange before the hump.

9- Now you want to push on one side of the cover over the hump and then once you are mostly

over then push the other side on

this will take some force. Grease is your friend.

10- Make sure the outer O-Ring is in it's grove. Add a thin layer of silicon around the outer o-ring face.

after the O-ring is in place and under the for bolts

Then align the bolt holes the match the ET Cover and push into place.

Make sure the outer o-ring has not popped out if so use a blunt flat head screwdriver to push back into place.

Apply blue loc-tite to the 4 bolts and install them but do not tighten.

torque the 4 bolts to 12 foot lbs and use the sequence that is engrave on the Cover.

This is to ensure a good seal

"There is 2 fittings make sure the smaller one goes in the bottom one,"

The water routing can be T'ed before Intercooler Do not exceed 20-30 psi. 3/8 barb and 3/8 hose.

Important: you want to run a 1/2 line to the top of the ET cooler straight out the hull no restrictions.

This is to keep the pressure down on the face of your S/C Housing.

If you have ET or stock Chargers this Applies.

If you have other S/c from other manufactures then you may want to lower the pressure

using a smaller restrictor.

Last thing to do is do a pressure leak test.

Engine-Technologies inc. is not responsible for any damages inflicted by using this Race product.

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