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Please Help! I Need Some Clear Cut Answers

Purple Monkey Dishwasher
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Purple Monkey Dishwasher Enthusiast

Purple Monkey Dishwasher

Posted
Posted

Hello All

I have a 1995 GTS-t RB25DET Auto

with th following mods

3'' full exhaust with dump pipe

GCG 450hp Hi flow Turbo

Pod Filter

Hybrid FMIC

Splitfire Coils

FCD

10 PSi Boost

18 degrees timing

My tuner cant seem to get much more then 210hp at the wheels

my ecu is doing the Rich and Retard thing its driving me nuts

What is my options for a ECU for the AUTO or do i go for a full ecu and do a manual conversion.

I would prefer to keep the Auto cause its nice to drive (my missus has to drive it too....with kids....)

I was hoping with startard injectors to hit 250-300hp at the wheels

but it seems that the damm ecu wont let me.

I have been searching the forums for weeks trying to find a clear cut answer to no avail.

Guys i know someone out there can help me

no matter what it still has to retain drivibilty.

HELLLLLLLLLLLLP!

Miller the hoon Rising Star

Miller the hoon

Posted
Posted

Champ get a compresion test some thing is wrong

i get 242rwhp @ 8psi

mods i have

3' exhaust with hiflow cat hiflow turbo

pod

fmic with plumb back

eboost 2 at 10psi 250rwhp all day

tho my dyno guy was very suprised

you need a g reddy e manage with ignision harnes there is a good thread on hear

james

Purple Monkey Dishwasher Enthusiast

Purple Monkey Dishwasher

Posted
  • Author
Posted
Champ get a compresion test some thing is wrong

i get 242rwhp @ 8psi

mods i have

3' exhaust with hiflow cat hiflow turbo

pod

fmic with plumb back

eboost 2 at 10psi 250rwhp all day

tho my dyno guy was very suprised

you need a g reddy e manage with ignision harnes there is a good thread on hear

james

sorry wrong message quoted.

Can you point me to that thread mate I cant find much with the search funtionalty

cheers

CEF11E Veteran

CEF11E

Posted
Posted

Speak to a guy on these forums called toshi

He remaps rb25 ecu's. This means he will write a new map for your standard computer so you will retain factory auto settings.

cost is something like $300 + dyno time from memory :blink:

he has done heaps of ECUs and knows what he is doing

Cheers:)

Miller the hoon Rising Star

Miller the hoon

Posted
Posted

PMDW

some thing is wrong with your dyno results

they are soo low i hav less mods than you and push wat you are after without an ecu auto as well that is y your thread interests me

was the car in second gear wen dynoed?

is it serviced much?

is it a good operater?

how long have you had it?

james

james

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

he is running a bigger turbo... there is probably nothing wrong at all.

@ 10psi his bigger turbo is more than likely moving more air, spinning out the ECU more than yours.

I wouldnt worry about the figure at all.

Get an SAF-C II onto it and go from there

Miller the hoon Rising Star

Miller the hoon

Posted
Posted

R31Nismoid

Dont you think 210HP not KW is a little low for the mods he has

and will a bigger turbo lower the over all HP

I thought they just lagged more

210 hp =150 kw @rw

sorry i think some thing is up with that

james

Purple Monkey Dishwasher Enthusiast

Purple Monkey Dishwasher

Posted
  • Author
Posted
he is running a bigger turbo... there is probably nothing wrong at all.

@ 10psi his bigger turbo is more than likely moving more air, spinning out the ECU more than yours.

I wouldnt worry about the figure at all.

Get an SAF-C II onto it and go from there

Actually you are right on the money the more airflow is maxing out the ECU

I have pretty much decided to get my factory ECU remapped when the nismo injectors turn up that way i dont have to dick around with splicing looms and such and everything will work smiko i'm hoping for 230 to 240 rwkw fingers crossed and it will still look factory i'll keep everyone posted.

Thanks for pointing me to that e-manage thread mad34 and the factory ECU IS the way to go.CEF11E cheers mate its gunna save a lot of heartache

Cubes Grand Master

Cubes

Posted
Posted
R31Nismoid

Dont you think 210HP not KW is a little low for the mods he has

and will a bigger turbo lower the over all HP

I thought they just lagged more

210 hp =150 kw @rw

sorry i think some thing is up with that

james

Miller, the stock ecu sucks, they are not all equal.

Nothing is wrong with his car.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

plus its auto also... you loose a good 10rwkw in stock form... more power you put in the more your going to loose :P

but yeah, get some management and then re-asses whats going on as currently you cant really get a good idea.

If something is wrong you could spend ages looking and not find it as there are too many things with a bigger turbo and stock ECU.

Get tuning in there and post up the results.

I'd be interested to see what comes of it.

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