VR injectors into VS

I've been wanting to replace/clean my injectors and rang a few places and spoke to a few ppl in the know. I found out that the VR injectors are better than the vs/vt & vn/vp injectors. They reckon the VR are the best and the worst are the VT ones.
Apparently the VR ones have better flow, more efficient and are better designed than the rest. So i ordered a set of Bosch VR injectors for my car for $300 from my mate who owns a spare parts place ($50 each!!compared to $110each from holden). I thought better off buying new ones than paying $200 to get mine cleaned(car done 219,000km). Once i put them in I'll let you's no how they perform. Hopefully they will make my car start better and stop the hesitating when cold; as ive allready changed fuel pump, leads(coils are fine), sparkys,fuel filter, cleaned:tb,plenum and iacv and run the car always on BPultimate.
I even got advised by Holden & Powerflow to get the VR ones instead of VS/VT ones. Everyone i spoke to reccomended the VR ones on the rest.

Has anyone else done this?

Is it hard to replace injectors? If it not too complicated i will do it myself on saturday , if too hard then ill just get my mech to put em in when i get the trans serviced.

Thanks
Jamie:thumbsup:

 

yeah ive got an ellery's one i think, i wanted a gregorys but no-one sold it around my area, my dad reckons it easy, ill have alook at the workshop manual and see how i go, hope it makes a difference!

 

yeah no prob, im picking them up on way home from work tonight, ill give it a go tomorrow, if its too hard ill have to go down and see my mechanic.

 

I am surprised by the claim that VR injectors are better than later ones.

Somewhere along the track, they were changed to what I think is called director plate injectors, which are supposedly dramatically less likely to cause problems through clogging.

My VSII is now only six months from ten years old (I bought it new), only very rarely gets an injector cleaner added to the tank (probably one every two years) and I have seen no indication that the injectors are anywhere near needing cleaning or changing. Performance is still good, and it still gives 35 MPG or better on a trip.

I have a spare set of new VY injectors I bought for $100 off Ebay if I ever need them, but I doubt that I will.

will let u all know outcome after i put them in and take for a drive, see if i notice any difference.

It is true that earlier Commodores had more urge at low throttle settings, which gave them a tendency to spin rear wheels during acceleration. That was "corrected" by throttle body and computer mapping changes I believe, not by less capable injectors.

Still, I await your findings with interest.

Fekason,
i have done a bit of homework before i made the decision to buy them, according to powerflow & holden,the VS/VT injectors are more of an older style injector and not as effieicnt as VR injectors, apparently the VS/Vt injectors are based on an 1980's design, where as VR injectors are based on a 90's design.Im still wondering why holden went to an older design injector for the VS/VT.
Im not changing the injectors for power, im changing them becuase of the problem i have with my car as stated in above post. Im just eliminating each which could cause my problem.
The earlier model commodores had more punch off the line as they were a different engine, the torque range was different and the cars weighed less. The Vn-Vr motors had more torque down low(making them quick off the line) ,vs onwards dont have the same torque at the lower rpm. But this is also due to different gearing, transmissions, weight etc. I find the VS motor has more high rpm power than the buick motors, but the buick motor was definetly quicker off the line,I had a vp before the vs.
With the weelspin in the vn,apart from re mapping etc it was also fixed via adding a bellmouth to the intake which helped distribute the air evenly into each cylinder , due to owners also complaining of rough idle with series1 vn's.

Your lucky u have had ur car since new so u know how its been treated etc... whereas i bought my car last year, i dnt no how many ppl have had it or what fuel they gave it, how often serviced etc... but as i eliminate probably causes the car keep running better and better. So it seems im slowly fixing the problem.

i will let u all know how it goes, and if it makes a difference.

Regards
jamie

 

Thanks for the below info, i geuss it will only tell when i put them in , as i havnt put them in yet as they parts shop gave me wrong ones!!! i will be putting them in this weekend, will post up if any difference.

 

Done!

I got the VR injectors put in yesterday with good results. , takes off alot better, and the cold starting problem has been fixed.Waiting to see how fuel economy goes. Only down side is the vr injectors are a bit noisier than the vs ones. Other then that im loving the way it takes off now. Also note that when u take off intake plenum if u gonna do them check the 3 seals around the intake port holes are sealing properly,as mine werent and when i replaced them, made my idle better as was a bit of vacuum leak. Also found out yesterday my balance shaft is going, mymech could hear it when i ws revving it:bang:
Fix one prob and anoither one comes. Overall im happy with the outcome, definite difference from my old injectors!

 

I doubt they would have performed better, the old ones have been in there since new(cars done 220000km, so id bet they be pretty worn), plus why clean my old ones when i got brand new oes for $100 extra. $300 for set of new ones, while my average quote to get cleaned was $180-200

 

sorry mate i have no clue what the dimensions ae, i geuss u could ring up holden for them or something , or ask at a wreckers or something