Jump to content
SAU Community

Recommended Posts

Hey guys

Since I got my car a couple of years ago I have always wondered why I didnt get any boost while reving the car at idle. I originally thought this is normal due to the larger Garret TD-04 on my RB20 but I was never sure.

Anyways to put it simply, if I rev my car at idle (after being warmed up) the AVCR will never show positive boost (you can hear the turbo isnt spooling no BoV etc). I am running a Garret TD-04 with GTR frontmount, APexi Bov connected to a wastegate and screamer pipe. Is this normal? I can provide more details, pictures, video etc if any1 needs more info.

Cheers

Link to comment
https://www.sau.com.au/forums/topic/162250-no-boost-when-stationary-problem/
Share on other sites

engine load makes exhaust gas

exhaust gas drives the exhaust wheel

the exhaust wheel drives the compressor wheel

the compressor wheel drives boost pressure

as there is no engine load the exhaust wheel doesnt spin fast enough

which in turn doesnt drive the compressor fast enough

which in turn makes little or no positive manifold pressure

Ye, but the rear housing for the Mitsu's is not the same as what the skyline is going to use.

If someone has put a Mitsu turbo onto an RB... what a bloody headache that would have been.

Check the rear housing dude if you can.

See what it looks like ;)

I need a pic of the other side.

That looks like a T04E .5AR compressor housing to me. Seems to have a 2.5" inlet. That's the exact same compressor cover i had on my "50 trim" T3/T4 on my previous 4G63T Eclipse motor.

In the DSM side of things in the states in around 2003-2004 the big thing was to match T04E Compressor covers with TD05H turbine housings. You may have that type of turbo installed.

Can you clarify "When I bought the car it said it was a TD-04" (what is "IT") is that a sale description?, or is that what you see on the turbine housing?

Edited by silman
Ye, but the rear housing for the Mitsu's is not the same as what the skyline is going to use.

If someone has put a Mitsu turbo onto an RB... what a bloody headache that would have been.

Check the rear housing dude if you can.

See what it looks like ;)

Who said it was the same? you said that no TD turbo was manufactured by Garrett - Wrong.

What?, TD05H-20G AND TD06-20G turbo's are very common on Skylines.

Ok, so garrett saying they didnt make a TD04 was slightly incorrect.

My apologies. They made a few insignifgant models.

I know the whole TD0X range is common, but look who its made by, and look @ the rear housing.

Its not the mitsu rear housing is it? No.

Who said it was the same? you said that no TD turbo was manufactured by Garrett - Wrong.

What?, TD05H-20G AND TD06-20G turbo's are very common on Skylines.

You were right nismod, garrett didn't make any TD turbos, They made garrett turbos with oddball housings to suit mitsu flanges. The TD description cannot be applied to a garrett turbo as it describes a mitsu turbo

http://www.atpturbo.com/Merchant2/merchant...tegory_Code=BCS

hmmmmmm.......this looks like your turbo silman and the product description says t28. I also know that the comp wheel on your turbo is definately old 25 styles and looks very similar to the plain bearing sr turbos of the 90's.

What?, TD05H-20G AND TD06-20G made by mitsubishi with garrett style exhaust housings? That must make them mitsu manufactured garretts!

You were right nismod, garrett didn't make any TD turbos, They made garrett turbos with oddball housings to suit mitsu flanges. The TD description cannot be applied to a garrett turbo as it describes a mitsu turbo

http://www.atpturbo.com/Merchant2/merchant...tegory_Code=BCS

hmmmmmm.......this looks like your turbo silman and the product description says t28. I also know that the comp wheel on your turbo is definately old 25 styles and looks very similar to the plain bearing sr turbos of the 90's.

What?, TD05H-20G AND TD06-20G made by mitsubishi with garrett style exhaust housings? That must make them mitsu manufactured garretts!

Before you make more of an ass of yourself I suggest you go to www.dsmtalk.com and use the search button to look at what turbo came stock on the mitsubishi eclipse second generation - from 1995-1999. Perhaps you would most likely recognise this shape of car as the green eclipse from the fast and the furious, except the car in that movie was a non turbo 420a 2.4 non turbo fwd. The turbo i pictured is a TD04/T25G that was made by Garrett and assembled at Illinois on the 4G63T engines that were made in japan before being shipped to the usa to be assembled in the cars. they were all left hand drive vehicles. some made there way back to Japan, others made it to europe and even Taiwan. When turbo naming conventions are discussed the turbine side is always the denominator - eg T3/T4 or TD05H-20G. There is no difference here - TD04/T25G.

Where did i say that the TD05 AND TD06 was manufactured by mitsubishi with a garrett style housing? This was a turbo most notceably made by forced performance to cater for the aftermarket scene before they all decided to concentrate on going completely Garrett. If you actually read what I typed it said that the Garrett COMPRESSOR HOUSINGS were mated to the mitsubishi TURBINE HOUSINGS. IE on the 1st generation eclipse from 1989- 1994 the TD05-14B was modified to fit the garret cold side compressor wheel and compressor cover.

Thats real nice, we're already reverting to name calling :sick:

You said

What?, TD05H-20G AND TD06-20G turbo's are very common on Skylines.

I said

What?, TD05H-20G AND TD06-20G made by mitsubishi with garrett style exhaust housings? That must make them mitsu manufactured garretts!

How was your comment relevant? Other than to point out that mitsubishi do manufacture T3 flanged turbos in the same way that garrett manufacture oddballs, yet we dont call a t3 flanged TD05 a GT2871 and we dont call a TD06 a GT30. That was my point.

So i will say it again, just so that i can make a bigger ass of myself as you put it. I'll even put it in capitals.

GARRETT DO NOT MAKE TD04'S. MITSUBISHI MAKE TD04'S

The turbo pictured is a T25 with oddball housings (and core for that matter).

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 fab work can be as simple as a couple of silicon hoses and clamps to the factory piping. 
    • Just sounds like either way you need to do some fab work to get everything to fit, so why limit yourself at that point? If the GCG high flow option is zero effort in and out swap though I'd probably do that. It's almost certainly lowest risk, lowest cost, etc. The HKS GTIII-RS option that Kapr mentioned is laughably expensive for what it is, they charge the exact same for two turbos on the RB26 so their margins are off the charts on that thing.
    • Intake manifold is not a part of the issue. The turbo bolts to the exhaust manifold. That is easy. But close your eyes and picture the physical situation. That is a T3 flange on the manifold and a T3 flange on the turbo. As long as any new turbo has a T3 flange on the exhaust housing, that exhaust housing will bolt to the exhaust manifold. This places the exhaust housing in the same place as the stock one. But now move your mental attention a little further forward. The location of the compressor housing is set by the length of the turbo's core. The stock turbo had a long core. Let's say that it is..... 100mm long. So that would place the compressor housing 100mm forward of the exhaust housing. But a highflow, might well have a centre core that is shorter. Let's say that it is only 70mm long. Now the compressor housing will be 30mm further back in the engine bay than the stock one. This DOES move the turbo's compressor outlet backwards. It also moves the compressor's inlet backwards. You will very likely have to do some work to both the inlet and outlet piping to make everything connect again. I am not say this to make it out to be a bigger deal than it is. I am just pointing out that "bolt on" is sometimes not quite bolt on. The highflow from GCG that Murray linked above (https://gcg.com.au/turbo-charger-upgrade-skyline-gtst-2iu-xtrgts-s1.html ) uses a core that is the same length as the stock core, and so does not require this extra work. It will look very much like the stock turbo. No-one uses GTR turbos of any flavour (stock, or aftermarket) in a single turbo application on RB20/25. It's not a thing. Yes, people have been putting on GT3076, GTX3076 (and bigger and smaller versions of those) and G30s (of various sizes) onto RB20/25 since forever. But these are not "bolt on". Everything except the 4 bolts to the exhaust manifold change with these. And genuine Garretts are expensive. Non-gen, like Pulsar, etc, are cheaper, variously as good or nearly as good. But still not bolt on. No-one in the right mind would pay for an HKS turbo. Not in this modern day and age. Well, yes, the GCG highflow. You could ask HG what he can do to make the compressor housing sit in the original location. There are surely others doing highflows around the world. And some of the eBay/Temu ones (as reported by Dose) work and don't die. Bit of a lottery though. I would send your turbo to GCG (here in Oz) to be highflowed if you want a trivial no-extra-work option. But seriously, the work required to change inlet and outlet piping is not that hard. That's a boost control problem, not a turbo problem.
    • Thank you all for the replys 🙂 I know that intake would be different but that is one pipe at it is not that hard to get(custom one). I meant mainly bolt to the stock manifold and the turbo elbow. I looked and many sites/forums but they are just "old" with some old HKS turbos from GT-R i guess? What about some Garrets?  Or any other turbo? Is there even a turbo which i can just bolt on? 😄 And yeah i know about that new HKS but that is like 2000k USD without taxes/shipping in here   Iam getting a touch up tune but my "problem" is that on the "not" hot day iam getting peaks around 0,9 bar...and when it was around 15 Celsious i saw peak around 1 bar which is just too much for stock turbo. And of course turbo is old and i like to get some new one for a piece of mind 🙂 
    • I'm working on the assumption that our friend Jasmine here is a Russian (or, possibly Ukrainian) spammer/spambot, based purely on the number of such that I have been having to neuter in the last few weeks. IP address for the OP above was in WA. But that could have been via VPN. Posting at quarter to 4 in the morning is a good sign of being from somewhere in Europe. The last Jasmine that I kicked in the cooch was IP addressed in Ukraine. Even that could have been via VPN, and the bitchbot could have been from Russia, Serbia, China or anywhere. Regardless, was a spambot, so I killed it with fire. The fact that our new friend Jasmine here did not respond in any way to my tart query strongly suggests to me that this OP was just the establishment phase of a user able to be activated for spamming in a week, or 3 or 10.
×
×
  • Create New...