Making A Vented/slotted Spark Plug Cover

[r33cruiser]

hey guys, seen these around by tomei and stuff.

has anyone made a slotted/vented cover.

and if so do u have any pics

and how did u do it?

heres an e.g. it doesnt have to be this crazy

[Craved]

to get clean even vents/slots you would need to have the material milled or water cut to be consistent.

alternatively you could drill holes then cut them out and spend alot of time manually filing the holes down to be even.

pretty sure you would need a bend on either side of the valley cover to make the bolting surface flush with the cam covers. check out your local hotrod shop (if there is one near you) they may have a louvre die that can press out some old shool vent louvres to let the hot air out.

[Tee-CnC]

I've design and made a few of this for the SR20

im thinking of making it for the RB25.

pm me if you are interested

Edited September 30, 2007 by Tee-CnC

[Tee-CnC]

i mean RB25

Post edited

[LiQuid IcE]

http://www.skylinesaustralia.com/forums/t187319.html

[GTST98]

hey i made one for my rb25 motor and it was pretty dam simple all i did was get a bit of 4mm aluminium but lighter stainless or whatever u want woould do , i just measured in side on the cam covers with a set of verniers and then just measured the lenght with a tape and then marked out the holes by measurement for the bolts , got that to fit , and then just put it in the drill press and drilled a coulple of holes , then stuck it in the mill and completed the slots in the mill , if u havent got acesses to a mill you could do it with a jig saw or angle grinder and then tiny it up with a file ill post some pics of mine if i can took me about 2 hrs to make it up then fair bit or polishing , i hate polishing!

[r33cruiser]

hey i made one for my rb25 motor and it was pretty dam simple all i did was get a bit of 4mm aluminium but lighter stainless or whatever u want woould do , i just measured in side on the cam covers with a set of verniers and then just measured the lenght with a tape and then marked out the holes by measurement for the bolts , got that to fit , and then just put it in the drill press and drilled a coulple of holes , then stuck it in the mill and completed the slots in the mill , if u havent got acesses to a mill you could do it with a jig saw or angle grinder and then tiny it up with a file ill post some pics of mine if i can took me about 2 hrs to make it up then fair bit or polishing , i hate polishing!

hi mate could u pm me a pic, or post up a piccie.

also was urs just a fllat piece of steel, or did u put in the bends and humps that are on the stock cover?

[GTST98]

hi mate could u pm me a pic, or post up a piccie.

also was urs just a fllat piece of steel, or did u put in the bends and humps that are on the stock cover?

hey i put 2 small bends in it so it would sit there better there only pretty little though , i used to work in a steel fab shop as i fitter and turner so was easy but i would say the whole job if u got a steel shop to supply, cut it and put the folds would only cost bout 50-60 bucks , thats excluding the slots they would cost a fair bit to get done

[boot_it]

hey guys, seen these around by tomei and stuff.

has anyone made a slotted/vented cover.

and if so do u have any pics

and how did u do it?

heres an e.g. it doesnt have to be this crazy

just cut the centre out and put mesh in it heres some that ive done

ca18det

rb20det

rb26dett

[r33cruiser]

...THAT...IS...AWESOME...

[linedup33]

wat did u use to stick the mesh?

[ACTIV32]

my guess is that its tack welded on by tig

just one tack in each corner should do it

[r33cruiser]

i went with the slots. i just took an angle grinder to it.

but i did make 2, because the grinder cant make perfect cuts.

so yea, i have a mesh one aswell, ....just incase.

but i havent noticed any temp changes.

if the engine is hot=the hot air gets into the coilies.???

but it looks good

[Craved]

i went with the slots. i just took an angle grinder to it.

but i did make 2, because the grinder cant make perfect cuts.

so yea, i have a mesh one aswell, ....just incase.

but i havent noticed any temp changes.

if the engine is hot=the hot air gets into the coilies.???

but it looks good

how have you tried to monitor the temp changes?

the idea once you are moving is that the moving air within the low pressure area under the bonnet should move the air around and provide some cooling to the coil packs.

[dmr]

but i havent noticed any temp changes.

if the engine is hot=the hot air gets into the coilies.???

if you have the cover on, hot air will get trapped in there. whereas if you have mesh or no cover, air can circulate.

[mic_check_1_2]

that mesh idea would it be possible/safe to glue the mesh on?? as i dont have access to a welder

[Craved]

that mesh idea would it be possible/safe to glue the mesh on?? as i dont have access to a welder

if you use something that is heat resistant

maybe something like JB Weld would work

[Medium Dave]

Or mabey rivet the mesh on, with a washer on the other side of the mesh to help it hold - evenly spaced it might come up ok

[GTST98]

if you use something that is heat resistant

maybe something like JB Weld would work

You could use a 2 part system called devcon , its like the metal version of fibreglass or the alike , you would prob have to rough up the metal a bit to get it to stick though , not sure how dear it is though, or just drill for small holes in each corner and put some little stainless steel bolts though it that would look pretty neat

[r33cruiser]

Or mabey rivet the mesh on, with a washer on the other side of the mesh to help it hold - evenly spaced it might come up ok

copy that dave, i used rivvets. so u still see some rivets sticking out top, but looks good.

and craved, that does make sense, atleast the air is circulated. i will get some temps, after some runs with stock cover, and vented cover