Hey Guys Im New To The Rb26

[hesh12445]

hye guys just purchased my 1996 series 2 r33 gtr vspec, im new to the nissans as i had a supra and know all about the 2jz but nothing about the rb26 lol so my car is white its a vspec following mods are

3inch exhaust blitz

hks boost controller

hks turbo timer

hks pod filters

boost setup from .7 to .9

ok now the problems im starting to see are the folwing

1)when you start the car after its already warmed up it starts and then drops dramatically in idle to about 2-300rpm hunts between there for 3-5seconds and then idles up at 900rpm sometimes its revs up between 900 - 1100rpm back and forth hunting and then when driven seems to be fine, the boost hold at .7 or .9 so i dont think a boost leak? but when its in vacuum i can see the needle going up and down a little bit...

2)when going in 1st and 2nd with foot lightly under acceleration it seems to backfire and missfire, and then when going full throttle the car will rev fine and then missfire/backfire through the rpm range and it looks to me like the car doesnt want to go past 5000rpm in 3rd or 4th i really have to push it but boost hold at .9

it seems its running alot rich because ive been told it spits out black smoke when driving and i can actually smell the fuel from the exhaust while driving, then all of a sudden the car starts to go hard and actually pushes and goes fine through the rpm range with no missfires or backfires?

any keen to lend a hand???

[StevenCJR31]

could be any number of things wrong with it

start with the ignition system?

[Josh080691]

As above^ replace plugs Then check coil packs then let us know if it continues .

[hesh12445]

ok sweet car has done 107000kms the recent owner changed the timing belt and the sparkplugs?

also one more issue i just remembered, these brembo brakes are meant to brake pretty hard i imagine? well on this car i have 10.5 inch rims all round with 275 tires and when braking it doesnt have a stop it just continues to slow down like some sort of brake fade? example when going about 30-40kms and u hit the brake hard i imagine it should stop on the spot? well it just slows down it doesnt just have that hard braking power, recent owner said he changed the pads without machining disc i imagine these are throw out disc can only be used once? well im not sure but for a gtr im sure if u hit the brake as hard as u can the car should come to a quick stop? this one doesnt

[Sinista32]

Do you have an aftermarket ECU ?

- Take it in for a check tune

- Have the rotors machined and system bled (while their there I'm sure they will pick up any anomolies.

use trusted mechanic/shop.

First thing I do with any cars new to me is a major service (unless I have evidence it has had one recently).

Edit: Brembo's are good calipers BUT good braking requires more than just good calipers. Pads, Fluid, Rotors and bleed.

107,000kms - true or not it indicates Major Service should have occured and should have paperwork for it with your GTR.

Edited August 22, 2013 by Sinista32

[Josh080691]

^^ to true. I'd be double checking the plugs. And i would def give it a service.

[niZmO_Man]

2) sounds like AFMs, look up the soldering fix or try a set of known working ones.

Do you know what brake pads are on there? As mentioned, machine the rotors, full fluid flush and probably look at getting new pads (QFM HPX at a mimimum, I would get A1RM as GT-Rs are 'heavy').

[hesh12445]

thankyou guys much better then the supra forums they mock your supra and mock you a a person for not being as smart as them

i had a 500hp supra im a licensed mechanic but not in performance as its a different field just a general mechanic, im very keen on the 2jz but thought id test the rb26s man so ill do all those test and get back to you guys in the mean time if anyone lives in lugarno nsw sydney area and wants to come have a look and knows what there on about and knows the gtr 33s ver well and wouldnt mind coming to have a look at this then please let me know on inbox cheers thanks guys

regards

hesh

[vorse]

hye guys just purchased my 1996 series 2 r33 gtr vspec, im new to the nissans as i had a supra and know all about the 2jz but nothing about the rb26 lol so my car is white its a vspec following mods are

3inch exhaust blitz

hks boost controller

hks turbo timer

hks pod filters

boost setup from .7 to .9

ok now the problems im starting to see are the folwing

1)when you start the car after its already warmed up it starts and then drops dramatically in idle to about 2-300rpm hunts between there for 3-5seconds and then idles up at 900rpm sometimes its revs up between 900 - 1100rpm back and forth hunting and then when driven seems to be fine, the boost hold at .7 or .9 so i dont think a boost leak? but when its in vacuum i can see the needle going up and down a little bit...

2)when going in 1st and 2nd with foot lightly under acceleration it seems to backfire and missfire, and then when going full throttle the car will rev fine and then missfire/backfire through the rpm range and it looks to me like the car doesnt want to go past 5000rpm in 3rd or 4th i really have to push it but boost hold at .9

it seems its running alot rich because ive been told it spits out black smoke when driving and i can actually smell the fuel from the exhaust while driving, then all of a sudden the car starts to go hard and actually pushes and goes fine through the rpm range with no missfires or backfires?

any keen to lend a hand???

check to see what condition your blow off valve is in if its been dicked with and venting to atmo or leaking can cause these problems