R34 Gtt Build

[r34unit]

Can any one recommend where I can get a .82 rear housing internal gate that bolts up to standard rb25 standard dump pipe flange ?

[r34unit]

going for my tune very soon so i need some tips and advice.

i have my gt30 on my manifold with external gate welded off it. Runs ok but stalls if i hit boost then back off, it does no stall if i down gear.

any one else had this trouble ?
do i keep my airflow meter in the stock position ?
and the injectors im looking at buying are bosch1000cc. if they are 14mm top 48mm in length and 14mm bottom they should drop straight in to the standard r34 fuel rail true or false ?

[scotty nm35]

You have a GT30 externally gated and haven't tuned the car yet?

Sounds like afm reversion, can you post pics of the intake setup?

I would love to help you out with the injectors but the guy supplying them should be doing that, surely.

[AngryRB]

ive had that problem of the stalling so will be interested to hear if you fix it, once you get it tuned you'll be loving it, nothing like an angry rb and E85 is a must

also talk to injectorsonline, they'll help you... another great supplier

Edited July 12, 2013 by AngryRB

[r34unit]

It's a 4 inch to 3inch with a 90 degree bend off the turbo, going into the pink label afm.

No oil return lines or blow by lines going back into the intake like the standard one.

[GTSBoy]

So, what's the BOV situation then? It would be best if you had a recirculating BOV aimed back at the turbo inlet like the original. Without, you'll get reversion that you otherwise wouldn't have had.

[urtwhistle]

AFM needs to be moved as far away as possible. I had similar problems.

[scotty nm35]

Haha, atmo BOV needs to go, or perhaps a good tuner could tune around the fuel dump?

[r34unit]

When I bought the car the bov was to atmo and never had a problem stalling.

[r34unit]

Can I test if its the bov if I disconnect it? Or does it have to plum backed though the standard pipe

[Hanaldo]

Can I test if its the bov if I disconnect it? Or does it have to plum backed though the standard pipe

Needs to be plumb back, flutter is still going to cause issues with air flow.

I think the issue will be with reversion though. That AFM is too close to the turbo there, and your intake pipe only has one bend in it. An 'S' shape would be better, and the AFM should be a bit further away from the turbo. Really you should be extending that intake pipe anyway, you've got that pod filter sitting right in the hottest part of the engine bay.

[r34unit]

My plan is to reuse the standard air box. The pod set up is just temporary. I want it to be clean and easy for my tuner to work with, and the more stock looking the better.

[Hanaldo]

My plan is to reuse the standard air box. The pod set up is just temporary. I want it to be clean and easy for my tuner to work with, and the more stock looking the better.

Best to fix the reversion issue before giving it to the tuner. Shouldn't be too hard to setup so that it can still be temporary, that intake clearly isn't going to work with the standard air box as it is anyway. I would suggest welding another 90 degree bend onto that intake pipe, one that positions the intake so that it can still work with the standard air box. Or at the very least, buy a 90 degree silicon joiner and use that for now.

With any luck, that will position the AFM far enough away from the turbo, and the two bends in the intake pipe should help prevent any reversion as well.

[GTSBoy]

You should never tune teh car with one type of filter on it (pod) and then change to another sort (airbox). The airflow pattern into the AFM will differ between the two giving slightly different signals for the same quantity of air (or the other way of looking at it, at the same AFM signal you'll have a different amount of air flowing). This is of course completely mental. The only way to do it is to keep the same filter setup.

[r34unit]

Sorry guys you miss under stood me.

Like you guys have said I do want to fix the stalling problem and mont the air box be for I go for a tune.

Ill fit this back on and try to plum back the bov. See if it helps

[r34unit]

When I first turn on the car it idles and runs fine. But let's just say if I go shopping and come back after 30 mins the car runs really bad. It seems like if the car is flooding or the plugs are fouling up !

Any ideas? it's just started last night !

Change the plugs about 3weeks ago