Highflowing Injectors

[Trozzle]

EDIT COMPLETE, here's my consumption

And I didn't drive it like a grandma. Keep in mind I said standard....so it was 190rwkw with standard everything except for FMIC, pod filter, JJR coilpacks, and 11psi

[MrStabby]

I had my injectors hi flowed to 600cc, all flowed with in 2cc of each other when flow tested, they are really pretty good

Who did the highflow? Was the flow test done independently?

[Moodles2]

When highflowing an injector, cc doesn't really matter awhole lot, it's the spray pattern that matters. Do you want a fine mist or is a leaky tap that flows 800cc

[omy-33]

Who did the highflow? Was the flow test done independently?

I am also interested in knowing this.

[rad100]

i had mine done by cef1ie on here!

[Crans]

i had mine done by cef1ie on here!

What do you think of the hiflows? Idle quality, cold start, power making ability?

[rad100]

well atm i have had them for year. car idles fine, cold start always been good, makes 282rwkw on 15psi

mind u thats on a rich (11.5afr) e85 tune! re tune in a week or two for 25psi.

[boostn0199]

What Ive heard is it all depends on who does it. If they do a good job then it should be fine but also if its dodgy can be a disaster. Ive even heard of some guys freind doing it for him in hes own garage and aparently no complaints lol.

But personally I like to spend the extra and know 100percent I know what is in there is quality so in my book nismos ftw,

[l0WRB]

mine and 3 other mates rb25's have been done by a friend in his backyard and all cars run perfect and around 400rwhp mark or more..

[wolverine]

Deatschwerks supply a flow test at 70% and 100% (or thereabouts) for each individual injector.

[MUMBO]

I just picked up from the guys at PRO-RACE a set of seimens 650cc injectors $492 ret, a top feed rail $290 ret, and a set if injector plugs from Coventrys $50 ret. I think its the cheapest way and its all brand new so you should not have any problems.

[Dose Pipe Sutututu]

I'm personally not a fan of hi-flowed injectors, probably from one bad experience. A friend of mine had hi-flowed injectors on his 200SX and no matter what I did on the PowerFC I couldn't get A/F on idle or light cruise.

I suspect bad spray pattern, yes it will flow what you want, but it's pretty much acting like a hose spraying petrol instead of misting it.

Please note, I said from "bad experience".

[Trozzle]

Yeah, it's all about the spray pattern. That's the reason I forked out the somewhat large price for the Nismo 740cc side-feeds. They have a 4 hole spray, so are quite efficient.

[dori34]

i got my injectors hi-flowed by PJ Quick bits.

600cc @ 43psi

850cc @ 60psi

all flowed within 1-2cc of each other.

no issues yet with run in tune, pulled around 180rwkw @ 8psi, full tune in 1.5wks so i will report back with any issues.

[GTScotT]

I also had a set done by cef1ie and found them to work fine. Later sold them to another member and never heard back on a complaint. Cef1ie also ran the same thing in his own car to great results.

In the end I got a set of injectors back with one hole rather than 4, so it seems consistent with what was mentioned in the thread above.

[Rolls]

no doubt that they work, just the doubts are with idle stability and fuel economy.

[bsd-gtst]

ive got 740cc hi flowed injectors, not long after installing them my car developed a bad misfire from idle to 2000rpm, turned out to be inferior quality pindle caps fitted when they were high flowed, quite annoying that a 2c part ended up costing quite a bit in labour to have fixed.

my mechanic isnt a big fan of the high flows, as mentioned he reckons that when they are high flowed the spray pattern is pretty much wrecked. Idle and cold start isnt the best either, once its warm though its fine, apart from that though they do the job.

car is 214rwkw@10psi

Edited January 8, 2011 by bsd-gtst

[HG20DET]

just out of curiosity, can this be done to rb20det injectors? And does anyone know how what sort of flow you can get?

[Dose Pipe Sutututu]

just out of curiosity, can this be done to rb20det injectors? And does anyone know how what sort of flow you can get?

Don't waste your time, go get 6x GT-R Injectors

[luvpsi]

i spoke to cef1ie and he said he doesnt touch the pindle at all just the screen so incorrect fitted pindle caps is a load of s*** so in saying that the spray pattern is not changed because the pindle is not touched

Edited January 11, 2011 by luvpsi