Jump to content
SAU Community

Recommended Posts

Hi all,

Went for quick drive this morning, I noticed it's overboosting now (usually read 0.6 kg/cm boost on Nismo Combination meter), it is overboosting to 0.65 kg/cm roughly cos I backed off the second i see the needle went over 0.6.

So my question, would leaking exhaust manifold gasket cause overboosting?

Cheers

Grant

unlikely. The noise is normally more noticable when its cold due to expansion when it gets hot.

As for broken studs, its unlikely on a GTR. GTSt's do it as the manifold is one piece and they warp causing the studs to snap. Given GTR's have 2 manifolds its a lot less common. BUT, the studs on GTR turbo's do loosen themselves off and cause the turbo to come loose on the manifold. If one is loose you will be able to move it around with a little help from a prybar. But obviosuly be careful what you lever off.

We had this problem a while ago at work and i cant for the life of me remember what caused it.....

About these, should I worry too much or?

Will have a look @ exhaust area later and check.

If all else fails, off to mechanic I go.

edit: Just had a look at engine bay for manifold bolts, can't see any cos the heat shields are covering whole area.

I'm still baffled at this problem... And I've run out of things to look out for.

unlikely. The noise is normally more noticable when its cold due to expansion when it gets hot.

As for broken studs, its unlikely on a GTR. GTSt's do it as the manifold is one piece and they warp causing the studs to snap. Given GTR's have 2 manifolds its a lot less common. BUT, the studs on GTR turbo's do loosen themselves off and cause the turbo to come loose on the manifold. If one is loose you will be able to move it around with a little help from a prybar. But obviosuly be careful what you lever off.

We had this problem a while ago at work and i cant for the life of me remember what caused it.....

Damnit, i remembered the 2 manifolds today...lol...but you corrected me b4 i had a chance to redeem myself... :bunny:

Hi all,

I just got home from Status today, Trent (who is a champ once again!) couldn't determine if I've blown a turbo wheel or not cos I don't have a cataylic converter to catch the shredding metal though.

Last night, I popped in, Trent went through the cramped engine bay, disconnecting one wastegate and see if it's over boosting or not. Rear turbo did but front didn't.

Trent listened to whole engine bay, plugged consult port to read AFM voltage, it appears all is dandy except for a whining sound from the turbos.

In conculson, Trent thinks front turbo may be broken, so I won't be driving this money pit for a while until I source replacment turbo (hopefully 34 N1), so will be buying new gaskets, studs and 100,000km service kit at same as turbo replacment.

Lastly, I'd like to say thanks to all whoever helped me in this thread, also many thanks to Trent @ Status for squeezing me in on his busy schedule.

Now, I'm going to put my wallet on diet!

Cheers

Grant

In conculson, Trent thinks front turbo may be broken, so I won't be driving this money pit for a while until I source replacment turbo (hopefully 34 N1), so will be buying new gaskets, studs and 100,000km service kit at same as turbo replacment.

http://www.skylinesaustralia.com/forums/R3...je-t323388.html

Brett,

Seen these, I am in negotiation with a pair of N1s from QLD at the moment.

Thanks for the link anyway, will keep these in mind if it falls through.

Cheers

Grant

Hi all,

Bit of a update, I decided to start it today.

On the start up, I noticed it is bit too loud (or I haven't started it since last Tuesday and forgotten what it sounds like?), on idle, it reads at 1,300rpm. After few minutes, I noticed white smoke coming out of the exhaust I turned the car off straightway idle speed went down to 1,100rpm.

So, white smoke coming out from exhaust means the turbo is shot?

Cheers

Grant

wanna swap, i have a nice simple gtst, i'll even throw in the 3540 set up that i cbf putting on atm :(

I think between what happened and trents thoughts i think its time for a new turbo, personaly i think that the lack of oil smoke at start up is because oil is thicker when cold, after warming up it would flow more freely throw worn bearings and seals.

Edited by W0rp3D
wanna swap, i have a nice simple gtst, i'll even throw in the 3540 set up that i cbf putting on atm :(

I think between what happened and trents thoughts i think its time for a new turbo, personaly i think that the lack of oil smoke at start up is because oil is thicker when cold, after warming up it would flow more freely throw worn bearings and seals.

Hmm... That does make sense.

I have pair of N1 on way to me and still hunting for PFC. Also buy new gaskets + studs and 100k service kit while I'm at it.

Anyone have PFC (would be nice to have HC) want to sell it to me?

And thanks to whoever posted on this topic.

Cheers

Grant

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
    • I've managed to find this: Nissan_Stagea_AutechVersion260RS (1).pdf
×
×
  • Create New...