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How to: Remove A-Spec GT35/500R?

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Old Apr 7, 2007 | 10:18 PM
  #1  
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From: My 350Z Roadster kicks my RX7's butt
Unhappy How to: Remove A-Spec GT35/500R?

Well I decided to ditch the bitch air pump and ACV. I removed the entension manifold and tried to remove the ACV but lost my socket trying to reach the bottom nut. So I tried to loosen the intake manifold but that can't be done without removing the turbo. So I tried removing the trubo from the manifold but that can't be done because two nuts can't be reached. So now i'm thinking maybe if I rebmove the exhaust manifold with the turbo I can then lift them upwards and out but I can't get the v-band off. I have the nut loosened allmost off but that thing doesn't move or pop off. Is it stuck on from heat or is there a trick to unlock and/or re,ove it? If I disconect the manifold, DP and WG, could I lift the turbo up?
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Old Apr 7, 2007 | 10:49 PM
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When I removed mine I had to take the manifold and turbo out as one unit. It was such a tight fit that the turbo couldn't come off of the manifold while they were both attached in the car. I would just disconnect the wastegate and the DP, undo the four manifold bolts and lift it out....
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Old Apr 7, 2007 | 11:03 PM
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From: In A Disfunctional World
If you lost your socket under there, can't you afford to buy another one. Then after all is removed, use a stick magnet to retrieve the lost socket.

You are heading in the wrong direction and making things more difficult.
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Old Apr 7, 2007 | 11:27 PM
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I was able to R&R my 500R (that rhymes, heh) with the turbo manifold still in place. You just have to be inventive in the method of getting at those two back nuts with the wrench
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Old Apr 8, 2007 | 12:53 AM
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From: My 350Z Roadster kicks my RX7's butt
CewRx7R1 - I'm not removing the intake manifold because of the lost socket. I'm removing it so I can take out the ACV and install bops. Once that is done my large Sard race fpr will mount perfectly where the AWS used to mount. My socket is from my Metrench kit, can't buy those seperate. I don't understand your reply "heading in wrong direction andmaking things more difficult". The 500R will not fir with the EGR and to have the EGR work requires an AEM EMS. I could get a .85 A/R turbine to fit with the EGR most likely but I am not willing to spend another $2k or more to do so. On top of that, I would need a custom M2 type intake box, so add at least another $1k. For what? I allready pissed away $2k on custom smog **** that I didn't have to.

GoodFella's - You must have special flexi tools and small hands.

So, how do you remove the V-band thing? Maybe it's just be stuck on/seized from the heat?
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Old Apr 8, 2007 | 08:43 AM
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Your prices are a little out of whack----a different a/r turbine housing is around 100-200 bucks, and the M2 boxes used are around 400 bucks.

Use a rubber mallet to persuade the v-band to pop loose, it's just stuck.
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Old Apr 8, 2007 | 10:51 AM
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^ ok thanks, wack a mole it is.

Nope prices are an estimate but pretty close. Intake box would have to be custom made. Only said M2 as an example of what would be considered legal. BOV has to return to intake (so no Tial) just like OEM, as well as air pump intake and ACV blow off, hence the reason for the M2 example. So custom intake + .85 snail = at least $500, then add AEM $1k + tune = $2k sub total and that is being very conservative considering what fabricators charge.
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Old Apr 8, 2007 | 10:56 AM
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Question

Originally Posted by GoRacer
Well I decided to ditch the bitch air pump and ACV. I removed the entension manifold and tried to remove the ACV but lost my socket trying to reach the bottom nut. So I tried to loosen the intake manifold but that can't be done without removing the turbo. So I tried removing the trubo from the manifold but that can't be done because two nuts can't be reached. So now i'm thinking maybe if I rebmove the exhaust manifold with the turbo I can then lift them upwards and out but I can't get the v-band off. I have the nut loosened allmost off but that thing doesn't move or pop off. Is it stuck on from heat or is there a trick to unlock and/or re,ove it? If I disconect the manifold, DP and WG, could I lift the turbo up?
Let's brake down your first post:
(1) I decided to ditch the bitch air pump and ACV. I removed the entension manifold and tried to remove the ACV but lost my socket trying to reach the bottom nut.

(2) I tried to loosen the intake manifold but that can't be done without removing the turbo.

(3) I tried removing the trubo from the manifold but that can't be done because two nuts can't be reached.

(4) Now i'm thinking maybe if I rebmove the exhaust manifold with the turbo I can then lift them upwards and out but I can't get the v-band off. I have the nut loosened allmost off but that thing doesn't move or pop off. Is it stuck on from heat or is there a trick to unlock and/or re,ove it?


Look at this whole sequence of events caused by you loosing the socket. You only mention wanting to remove the ACV and air pump. After the fact, you bring in other changes. You need to organize and explain your TOTAL situation better, which you did not originally do.
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Old Apr 8, 2007 | 04:08 PM
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^lol, well I was "hoping" that I could remove the ACV without removing the intake manifold. It's not a strait shot to that bottm nut. I didn't want to have to remove everything. I didn't think it would take me two hours and certainly not two days. The air pump is simple, have the pullys and belt installed to bypass it.

After teaking a long break and walking the doggie I need to get back at it. I have the nuts off the manifold. I can not fit my hands or tools to seperate teh turbo, so that's fine (next time I know). Wastegate is accessable from below. I can't seperate the waterline, may have to cut it off. V-Flange is still stuck even after wacking it. When I put it back together i'm using antiseize.

I know the sequence looks backwards the inteded changes are the same. To remove and bypass the air pump and ACV, also giving room to mount the FPR under the UIM. It sounded very simple and easy. I thought I could avoid the whole sequence of events but removing only the ACV but it wasn't possible.
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Old Apr 8, 2007 | 11:43 PM
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Originally Posted by GoodfellaFD3S
I was able to R&R my 500R (that rhymes, heh) with the turbo manifold still in place. You just have to be inventive in the method of getting at those two back nuts with the wrench
mine would NOT come out without leaving the turbo attached to the manifold, no way, shape or form about it. I contacted ASpec on that issue and I apparently had a very early production model that didn't fit quite right. They wouldn't send me a new later production manifold and instead milled some, part of one of the flanges to get it to fit...but it only fit with the turbo attached to the manifold outside of the car...and dropped in...and could only come out of the car as one piece.

ASpec continuously insisted that my car was probably in an accident and that was why it didn't fit...this is NOT the case...everything is OE smooth in there and has never been hit (one lucky break). The fitment was not perfect on it. IT did however work...and was a decent setup when it was all installed and the headaches were relieved. I decided that leaving the airpump and a low mount manifold were just not the way to go...so I ditched the whole thing and went totally custom.

GoRacer got the first low mount manifold...I got the second...so there was no wonder that we both had fitment issues.
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Old Apr 9, 2007 | 03:16 AM
  #11  
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From: My 350Z Roadster kicks my RX7's butt
My fitment issue was resolved by welding a spacer flange in between the manifold and turbo. The compressor still hits but it fits. So if I switch to a smaller .85 A/R that will bring the compressor closer and there's no way it will fit. ...unless I have that backwards?

I was not able to remove the turbo. Any way I looked at it there was a problem. I couldn't get the v-band flange off. Would have to leave wastegate on, can't acces other bolts to remove it. Couldn't see any posibility of removing manifold with turbo because of clearance isssues. Couldn't access tuebo studs. yada yada yada

I also have to figure out what i'm going to do with the down pipe. The return is too low and I originally got stuck on a speed bump. Raised the car but still it scrapes and it almost has worn through the bellows thing as it's not round any more it's flat.
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