Just Put A Turbo On My Na Got Some Problems

[666DAN]

GRRRRRR im really really f*ing pissed off my microtech didnt turn up now i had to cancel my tune till it comes in i been waiting 3 weeks for it grrrrr, and another thing to top the list i put a gtst ecu in to drive it to work today and the car is running rough as guts on start up it seems to run rich and retard for the first like 2 minutes then when you driving it sometimes it feels as if the car is being really restricted like a blocked exhaust or the boost is leaking out somewhere but it doesnt look like either are happing just feels like it hope its just cause its not tunned but i duno now grrr

Hmm bizzaro, you've got GTSt injectors + pump?

[unarmed_skyline]

i got a 600hp fuel pump, i havent upgraded the injectors but when it went for the first tune the place said they wernt maxed out, although for safty i bought a fuel reg to go in when i get the microtech, i was thinking it could be a fueling issue but i wont really know until i tune it, althought the car very occasionaly searched for idle like up to 1500 then bak down do 800 a few times so it could be the idle control valve being dirty i might try and clean it and see tomorrow,

also cant remember if i mentioned it but the car idels really low with the gtst idle like 500rpm and on cold start up to like mabye 900 so i rekon that could be a little bit of the problem ill see what happenes

[unarmed_skyline]

ok just pulled off and cleaned my idle control valve was pretty dirty but it didnt seem like it helped at all with anything so i took out the gtst ecu which the car was running like shit on and put my na ecu back on just to test the idle and everything and guess what the car ran perfect so i'd say all it was that the gtst ecu may be damaged or mabye they are not compatable but i doubt that cause the car ran just didnt run to well, oh just means ill have to wait till the microtech comes in put it in then drive the car to the dyno with the base microtech tune no real big loss only that i cant pre book my tune just incase it doesnt show up for a little while hope someones got a spare dyno time next week when it comes in

[Cubes]

What size injectors do the N/A R33's run?

Surely not 370cc's like the turbo's?

[unarmed_skyline]

i think they are 280ish cant remember exactly

[unarmed_skyline]

MICROTECH just turned up grr a week late oh well, cars booked in for the tune on friday yay ill let you know how it all goes then

[666DAN]

yeah would have thought the 280's would shit themselves...they did on my car

[unarmed_skyline]

well ill c how it goes

[Sean'O]

Sounds Good man, shoot us a sms when its all running sweet

Sean'O

[unarmed_skyline]

hey ok microtech is in and running ohh yay, took all day to get the thing to sensible settings cause supposible microtech loaded the wrong maps on it so the place its at spent all day fiddling with all the settings to get it to a safe drivably setting but they ran out of time to weed out a flat spot threw the middle to high power band so they havent done the final tune and power run, its going back in on tuesday and finilizing the injector pulses and the fuel reg settings and a few other things, then he said he's got to leave the car over night till its dead cold to set the cold start and if he can get it right first go which he only has one chance at he'll give me the car bak wed if not he's got to leave it overnight agian and finilize it on thursday, they are doing an extreemly professional job going threw everything helps that they deal with my work so im getting good prices plus they not stuffing me over cause they do then we stuff em over you know what i mean lol, anyways the place is called mahnkens autotune in moorabbin they do excellent work will let you all know the figures when i get em but omg the car already is driving like a dream

[unarmed_skyline]

hey didnt end up getting a dyno printout cause the printer was broken lol

ended up getting less power than i was expecting got 130rwkw at 6.5psi with the 32 turbo fuel reg stock side mount cooler 600hp fuel pump and microtech, the biggest thing holding it bak is the turbo being way to small it starts to run outa puff around 5200 rpm and drops back to around 5psi boost,

[Cubes]

Hrmm.. the dyno must read way low or the car has issues.

I ran an rb20det turbo on my rb30det (25 head) and that made 176rwkw on 9psi, boost peaked to 12psi and then tapered off to 9psi by peak power. No boost control just straight off the actuator. Peak power was made at ~4800rpm. It was all over by 5500rpm. :S

It won't matter if its an rb20,25,26 or 30. The rb20det turbos will always make 165-180rwkw when tuned depending on motor condition, exhaust, cat convertor etc.

The rb20det requires ~1bar where as the rb25head requires ~9psi to make that power.

[linedup33]

hows it feel driving around now - after the tune n with the turbo conversion all done

[unarmed_skyline]

yeh the cars way more fun to drive second gear put the foot down and wheels start spinning

Yea i think the dyno was running quite low because the previous dyno tune it was 150 at the wheels at a different place, the exhaust is pretty much stock so thats restricting it and its running only 6.5 psi boost stock r33 actuator on 32 turbo, im getting an avo front mount fit for it soon and then i might up the boost and get a full print out.

the car sounds soo nice, instant boost pulls like a train cant feel any lag way better feel than the n/a now just got to do some subsids and ge the power up a bit