Injectors.

[skylinecouple]

Got another tune at Hitmans and with the hiflow turbo by GCG should be able to get 230rwkw at least.Matt seems to think it`s the injectors not having a good spray pattern but I`ve seen others with hiflowed injectors get the power they want.We thought at first it may have been the cat but I`ve since changed it to a metal 3" and although I got an extra half pound boost he still can`t add more than 15 deg. total timing. Is that normal for the following setup?

Front mount

Split dump,3" all the way back and metal cat.

K&N panel.

GCG hiflow

Hiflow AVO injectors.(must admit they did look sus.Holes looked butchered but he says he flowed them twice to check)

18lbs boost to get 216rwkw.

I have an almost new set of injectors from a motor that had 32,000k`s on it so was thinking to put them in and run a bit more rail pressure but if that doesn`t work then I`ll have to buy new injectors anyway.

Any suggestions?

Edited January 16, 2007 by skylinecouple

[BAMR33]

What ecu/afm/fuel pump are you running? could have something to do with it.

Edited January 16, 2007 by BAMR33

[paulr33]

if it was the injectors it would just lean out and be an uncontrollable lean

it sounds like he is having problems making power, check the cat

try and drop the dump pipe and leave the exhaust open mouthed. see what power comes out

[skylinecouple]

Have all the good stuff.Nismo pump,Z32 afm,PFC.Sorry,I`ve had them so long I keep forgetting to mention.

[skylinecouple]

Have changed the cat as I mentioned.Plugs are brand new NGK iridiums PFR7. Gapped .8.

[BAMR33]

Intake pipe sucking closed, just something to check probably not the cause.

[discopotato03]

I think the Piper Cross panel filter is supposed to be better . You don't mention details about the intercooler and pipe work . Also what fuel do you use ? Long shot but make sure the turbos exhaust housing is not from an R32GTST .

Cheers .

[skylinecouple]

The intercooler is good front mount and have fitted cold air intake to air box and small hole facing headlight.Besides,we took the air box and filter out and made 2kw.I know the turbine housing is R33 because I just took it off to look,thats why it took so long to get back to the forum.Something I noticed though,the housing doesn`t seem as opened up as one of Slides.The turbo is maybe four years old now but making 18lbs.Only just turned it up in the last three months and rarely hit boost anyway.Besides,I`ve never felt totally confident is those hiflowed injectors so will change them anyway.Slide can do me a set for $940 for Nismo 555`s.At the same time will get him to redo the rear housing.

Edited January 18, 2007 by skylinecouple