Whats Next?

[centrifugal]

Hey all just a quik question What should i be looking at for my next mod i've got:

Small pod filter Restricted due to space from modified intake pieping

3" Dump pipe into Stock cat into 3" catback exhaust system <~~ 2 mufflers

garret T04E turbo .60A/R compresser dunno exhaust but full boost by 5000RPM

HKS exhaust manifold low mount

HKS external wastegate

bleed type boost controller

Made 227HP@14PSI at wheels im looking for 300HP and some more mid range pull.

dyno graph in attachments.

so far ive thaught of changeing the intake to run a full size pod filter and getting a 3" high flow cat and removing 1 muffler to increase flow. ive since turnd down boost to 12 cause the guy from the dyno said it was leaning out a bit at top end no detonation YET afr's get too 14:1 at top end on 14psi (yaay go stock computer and fuel system!!) any other suggestions?

money has run dry atm but just wanna plan ahead save spending money on things i dont need.

[iandawsonwa]

head work and some after market cams?

But i would get fuel pump and ems first.

[silver gts-t]

-engine management

-injectors

-Z32 AFM

-Electronic boost controller

these are going to be a MUST as your car is not running safe at all.

and your car doesnt seem fun to drive at all....

[nissan_280zx]

how about a FMIC!!!!!

if you dont have one get one now.

Then go with Fuel pump, injectors and a ECU, and you will be laughing

[jazza08]

Im not sure how ur standard ecu is running the car... but before you do ANYTHING go get an ECU and get it tuned! Even if its with standard injectors/afm/fuel system blah blah as slapping a big turbo on and raising boost without any form of tune is just asking to blow the motor!

[_8OO5TED_]

front mount, Power FC and atleast a GTR fuel pump!

your motor must be HATING you right now.....

[centrifugal]

yea woops i forgot im runnin a 600x300x76 hybrid FMIC and remacarbly the car is smoth to drive you just have to wait for the power. but yea i think after i get rid of the intake and exhaust restrictions ill get that computer it needs and a electronic boost controller cause as you can see on the dyno chart it really dosnt know what its doing with the fuel. thanks for the input guys!

[joh21m]

yeh like wat everyone else said...

i cant believe you didnt at least upgrade your fuel pump and get an fmic...

i wouldnt even dream of putting a bigger turbo without those.

or maybe you just forgot to add it to your list of mods coz they are such obvious things to do

Edited March 19, 2006 by joh21m

[jazza08]

Personally id never ever use the person who put that turbo on ur car without telling you that you HAVE to have an ecu to tune it with...

most people dont like driving to the dyno place with a bigger un-tuned turbo on lol

[Craved]

im stunned that its no pinging at 14:1 AFR up top end ..

usually can run 14:1 down low before boost kicks in, but then it should be 11.5 to 12:1 ..

first thing if ECU is out of the quetion, rising rate FPR 2:1 rating, to get the injectors flowing that little bit more.. just to get that AFR a bit better....

like $200 and will be alot safer than what your doing now.

[centrifugal]

woh i really didnt think that it was that bad but yea since the guy at the dyno told me i droped the boost to 12 psi and was talking to some people and they mentioned and apexi safc or something i think its just a chip but do you reckon that would at least fix up the fuel a bit combined with an upgraded fuel pressuer regulator and where do you think i should look to maby pick up a second hand one??

[Craved]

SAFC is a piggy back fuel controller..

but i wouldn't spend money on that if your gonna keep that turbo..

get theECU remapped or buy a new ECU...

the adjustable fuel pressure regulator is simply a bandaid.

[MerlinTheHapyPig]

if you keep running it like that without a tune, you're gonna blow an engine.

your afr's are all over the place, you are running dangerously lean at the top end of the graph where it peaks at 14:1, i'm suprised you haven't done some serious damage... I guess this is what an afr graph looks like when you slap on a turbo kit, boost controller and just go for glory!

I would also argue your turbo is very laggy, the car musn't feel very drivable, you could consider changing turbo's, a tune will improve your low end response, so will cams but only to a certain extent.

as far as mods go (apart from a remap or aftermarket ecu - don't get an SAFC, stock remap is better if you wanna do it on the cheap)

i wouldn't worry about z32 afm or electronic boost controller, your tuner will be able to tell if it's spiking or your current afm is maxing out, and the manual boost controllers some dude is selling here (there is a big topic about it somewhere on the forum, search) are great.

- Fuel pump & injectors

- high flow cat + air filter

- cams

- head work (porting etc.)

- bottom end (pistons, rods etc.)

and also have a think about how long you're gonna keep the rb20det for, and if it might be worthwhile sticking an rb25det in it. Also consider "safety" mods such as oil cooler, aftermarket radiator

Edited March 20, 2006 by MerlinTheHapyPig

[undertoe]

after reading this thread im freaking out now I have a r32gtst with a HKSGT2540 and apexi FMIC , i have no idea if the ECU has been remapped or is stock. I got the car from japan and have no info on this. It has a manual boot controller and it is set at 14psi , thats the way it came. I surpose i should get it on a dyno to know.

[Cubes]

Undertoe, its always a good idea to get the car on the dyno for a power run at least every 6months to a year to check afr's IF its running a nice turbo.

Fuel pumps/injectors can and do get tired/clagged.

Back to the origional question.......

This would be the plan of action if it was mine...

1. Fuel pump

2. Cat converter sorted

3. Fuel pressure reg

4. Adj. cam gears to help spool

5. PowerFC (Possibly including the pfc boost control kit if the current setup has issues holding boost)

6. Tune it and wind the boost up until she doesn't make anymore power or if injectors are limited which should be with a bit of fuel pressure some where around 200-220.

[undertoe]

Undertoe, its always a good idea to get the car on the dyno for a power run at least every 6months to a year to check afr's IF its running a nice turbo.

Fuel pumps/injectors can and do get tired/clagged.

Back to the origional question.......

This would be the plan of action if it was mine...

1. Fuel pump

2. Cat converter sorted

3. Fuel pressure reg

4. Adj. cam gears to help spool

5. PowerFC (Possibly including the pfc boost control kit if the current setup has issues holding boost)

6. Tune it and wind the boost up until she doesn't make anymore power or if injectors are limited which should be with a bit of fuel pressure some where around 200-220.

Thanks mate , im going to get a whole new exhaust system , should i go 3.5 inch or is 3in fine with this size turbo. Also by sorting out the cat do you mean a highflow unit?

[centrifugal]

Thanks for the info guys yea where on the northside of brizzy would be a good place to get the ecu re-programed and what is the normal cost for this?

I have thought of doing the rb25 conversion and now that i look at it i probly shoulda done it instead of putting this turbo on but all aside whats done is done and now i dont have the money to do it so ill try fix what i started so do u think if I can get it retuned with a fuel pressuer reg. it would at least be safe and then ill start saveing for that ecu!

Once again thanks for the heads up and hopfully i havnt dammaged anything!

[D-limo]

DR Drift (son of rajab of re-tuning stock ecu's) is making a trip up to Nerang in the very near future.. Check the QLD section.

Rising rate regulator and a big in tank pump... Plus the cat and inake and you should be set for some decent figures, with the re-tune of course.

If your smart you could have all this done for a little over $1000

[Savage Bliss]

how about a FMIC!!!!!

if you dont have one get one now.

Then go with Fuel pump, injectors and a ECU, and you will be laughing

Yep, good point. You'll start maxing your injectors and fuel pump soon. So get all that out of the way.