Hi guys i'm facing a lil problem with my 1000 cc injectors on and the fule rails on once i put the lower intake manifold on its touching the injectors so to cut a story short i might even need to weld a lil of the lover intake manifold or a spacer that goes in between so i can lift the lower intake a lil any 1 experiance d this b 4? urgently help plz regards....

 

Are these HKS 1000cc injectors, or RC 1000cc injectors?

RC 1000cc injectors fit. I am running them on my car.


The HKS 1000cc injectors do require a modification to the lower plenum, or the rail, or run a bigger top 0-ring (Charles does this on his).

 

I am assuming your not using RC or HKS 1000cc??

Which ones are they?

I would take off the runners and see if you have room to machine the lower injector bosses to see if you can seat the injectors lower without the nozzle protruding too far into the airflow.

Also, since your trying to cram a tall injector in there, make sure that your not putting the injectors so deep into the rail that the inlet of the injector is too close to the ceiling of the rail bore, or you can block proper flow to the injectors inlet.

 

if you post pictures of your scenario, we can give you some better advice

 

Hi Guys,

it is a HKS 1000cc injectors. i saw it my self. i think it is doable but the mechanic needs to take some material of the fuel rail and the lower plenum.

Punk,
you have a good point about not putting the injectors so deep into the rail that the inlet of the injector is too close to the ceiling of the rail bore.

Husam

 

I have HKS 1000cc injectors and yes the lower plenum has to be modified. Sam from GTM sells modified lower plenums if you can't do the work yourself.

 

I am running HKS 1000cc without any modifications to the upper or lower plenum or the rails. I did do a little lathe work on the injectors tho

 

phunk do you still sell the modified HKS injectors?

 

No, but we could probably fix some up to work for you sometime if you need it - or I could just tell you what to have done.

Basically, all we do is machine the upper o-ring groove larger, to fit the stock injector o-rings. This way, it gets a proper seal in 350z fuel rail bores.

 

Hi Guys..
Well as Husam said befor they are HKS 1000 cc injectors and thanx alot for ur help sharif and phunk you where a lot of help at least i have several mod. options to do but i think phunk has a very valied point. SMS tuner we will disscuss and see whats the best to be done its ur call man I trust u.
Thanx a lot guys and regards will keep u posted and will show u some pics soon. Any other sugg. that coms to mind plz let me know.

 

ok so I made up my mind i will do a 1 or 2 mm spacer just to clear the injectors does any 1 think not ok to do so?