De-capping injectors
 

I've heard someone talking about how they de-capped there 565cc sti pink injectors and making them 650cc and when flow tested there was only 5% difference in flow between them!!
This sounds very little difference and a good idea. Am I right in thinking this and how easy is it to do?

Thanks but is there a DIY method

Amazing thing google...........

http://club4g.org/board/tuning-elect...decapping.html


do a search on how to decap injectors lots of vids as well.

i've heard about a couple of people doing it too.

if you take the gauze off the end, how will the fuel be sprayed/atomised? it'll just squirt out in a jet, not a mist like it should be. so they will flow more fuel, but in a bad spray pattern, so it'll burn worse and lower bhp and mpg.

think of them like a hosepipe. if you water your garden, do you not fit an end on the hosepipe and get loads of water out and soak little bits, or fit a spray nossel, get less water through, but water the grass more efficiently?

You can de cap them but you lose some of the spray pattern
Best to open the holes in the end , you can then keep a nice spray pattern
I've modded stock bugeye by this method and they flow at 730cc
I did a thread on here a short while ago

Tony

How did you manage opening the holes up there so small lol :).
But even reading the link above proves good results in a certain way

Use a little modellers hand twist drill thingy and some small bits 0.2 / 0.3
Yeah they are small but it don't take much to make em flow more

I just wish I had the time to order the stuff needed to do this as I need some bigger cc injectors by the weekend :(
As anyone's reading this got any for sale?? Thanks