Sliding Performance Hiflow Picks And Installationon Rb20det

[CEF11E]

not at the moment cubes.

I will see how power delivery is coming on. I need to change the timing belt soon anyway so I will atl east get an exhaust cam gear then.

The turbo seems to spool earlier and earlier every time I drive it. almost as if it needs to bed in.

I am starting to think I would really lke a 3lt bottom end.

Edited November 12, 2006 by CEF11E

[Cubes]

lol..

Compared to the rb20 a 3ltr bottom end will have the same turbo spooling ~2000rpm earlier.

[l0WRB]

im running the stage 3 rb25 hiflow from aaron on my rb25 and it spools quiet early i know im gettin 16psi around 3500rpm lacks the mid range atm but from 5800rpm-7000rpm its animal..maybe stock computer doesnt like the bigger turbo?

[fr0st]

im running the stage 3 rb25 hiflow from aaron on my rb25 and it spools quiet early i know im gettin 16psi around 3500rpm lacks the mid range atm but from 5800rpm-7000rpm its animal..maybe stock computer doesnt like the bigger turbo?

Definitely doesn't like the highflow, rich and retard would explain you lack of midrange. Fuel pump and injectors could also explain why its an animal after 5.8k (lean out) if your still using the stock items.

[l0WRB]

Definitely doesn't like the highflow, rich and retard would explain you lack of midrange. Fuel pump and injectors could also explain why its an animal after 5.8k (lean out) if your still using the stock items.

walbro intank pump but stock injectors and fuel reg! yeh i really need fc,z32,injectors and tune!

[LTHLRB]

l0wrd what power u making at the wheels without the ecu?

[Simon-S14]

well im book for proper tune on wed so i'll let uyou all know how i go then

[LTHLRB]

is this the max oversize rb25 turbo for the rb25 engine?

[mickr33]

is this the max oversize rb25 turbo for the rb25 engine?

Hey Phill. Yeah i'd think this would be the max oversize lowrb is talking about. I've just installed

one of the max oversize ones on my R33. Booked in for a retune in 3 weeks (as soon as i could).

Also will be changing from walbro to a 040, S15 injectors and Z32 AFM. Will let you know how it

goes if your interested. Also you work at Ford in Epping. Supprised i havent spotted you yet.

[LTHLRB]

how do u know who i am? PM we shal speak..

[l0WRB]

l0wrd what power u making at the wheels without the ecu?

on milanco dyno it made 279rwhp@12psi with stock turbo and standard coils

its got highflow and splitfire coils now oh boy did those coils fix ALOT of problems lol

[LTHLRB]

im going to use the max oversize rb25 highflow the 260kw rated one, with custom injectors and power fc also z32 on 18psi. What power will i be looking at?

[AzzurrA]

*subscribes to thread*

awesome work guys... keen to see some real-world results!

[CEF11E]

I have booked some dyno time on Wednesday as well. I only have an hour on the dyno so it will not be a complete tune. I will just be tuning the stock ECU at WOT and compensating for the GTR injectors. Mine is not the stage 3 max oversize turbo it is the straight rb25 hiflow.

[AzzurrA]

So, is the change in the oil feed necessary when switching from RB20 - RB25 turbo?

I had mine changed a while back (running a std R33 turbo at the moment on my RB20), and the workshop claimed that it all bolted straight up fine, no modifications required at all?

Or is it solely to get more oil flow to the turbo?

[DivHunter]

So, is the change in the oil feed necessary when switching from RB20 - RB25 turbo?

I had mine changed a while back (running a std R33 turbo at the moment on my RB20), and the workshop claimed that it all bolted straight up fine, no modifications required at all?

Or is it solely to get more oil flow to the turbo?

You have to modify it for the Slide hi-flo because it is journal and not ball bearing. The bearings need more oil and if you don't do it right you'll cook them.

[Cubes]

That depends if the rb25 turbo is a highflows bush type.

oil requirements only need to be changed if the turbo your bolting on isn't ball bearing. i.e journal bearing/bush

[Bass Junky]

looking

[CEF11E]

I have just gotten a bit further to getting some results.

I have just put in my GTR injectors and remapped the ecu to suit the bigger injectors and added fuel just for testing.

It is now spooling up quite a bit faster and I have set it to 14psi. it reaches full boost by around 4200rpm and feels very strong.

Cant wait to tune it tomorrow. it looks like it is going to be a good combination and may end up being quite streetable

[Craved]

so how did the tune go?