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Machine Shop Recommendations

lwells

By lwells,
in New South Wales

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lwells Grand Master

lwells

Posted
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Hi Guys,

Just wondering if anyone has recommendations for places to get some machining done, either in Sydney or Wollongong. I need to get the surfaces machined on my exhaust manifolds and the tongue removed on these Greddy/Trust split front/dumps....

Speaking of which, those of you who have used the Greddy/Trust extension pipes with turbos that already have a exhaust/wastegate split, how much did you have taken off?

Cheers,

Lucien.

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Beer Baron Grand Master

Beer Baron

Posted
Posted

lol

I had this thought when looking at the 34 N1s next to some seperated dumps. as your SS have the same exhaust housing as the 34 N1s with the integrated seperator I would take it all off.

lwells Grand Master

lwells

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lol

I had this thought when looking at the 34 N1s next to some seperated dumps. as your SS have the same exhaust housing as the 34 N1s with the integrated seperator I would take it all off.

Yes, I was thinking just to have the tongue machined flat. However, looking at the exhaust housing on the HKS's, the split finishes about 5mm from the top. I was just wondering (out loud) if its worth leaving a mm or two of the tongue sticking out of the front pipes for a closer fit. Obvious issue is that the metal is going to expand when its (very) hot...

lwells Grand Master

lwells

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yes, i thought about that too, but i think it's fine (and safer) to leave that little gap.

Yup, again, agreed, but thought I would throw it out there in case some wisen old sage knew better. I wonder how disruptive to flow having that gap will be? It interesting to note that there is a gap of about 1-2cm in the divider at one end on the exhaust housing to allow gasses to move from the exhaust wheel side to the wastegate side.

SW20-GT: Thanks tosh, I will call them tomorrow.

If anyone has any other recommendations, fire away.

wrxhoon Grand Master

wrxhoon

Posted
Posted

Depends on the turbos you have. If you have Hks GTSS's then just machine the lot out, thats what i did . I must warn you they are a bastard to fit on .... and you cant fit the turbo brackets on them either .

lwells Grand Master

lwells

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Depends on the turbos you have. If you have Hks GTSS's then just machine the lot out, thats what i did . I must warn you they are a bastard to fit on .... and you cant fit the turbo brackets on them either .

Yup, they are GT-SSs. I assume you mean have the tongue machined off the dump/front as opposed to machining out the exhaust cover.

I'd be interested to hear anything else you have to say about installing the GT-SSs (I was going to post a question about it anyway). By turbo brackets, I assume you mean the turbo support braces/brackets? Do the foul on something, or just not fit period? Any solutions/recommendations (or any other thoughts)?

Thanks :rolleyes:

wrxhoon Grand Master

wrxhoon

Posted
Posted
Yup, they are GT-SSs. I assume you mean have the tongue machined off the dump/front as opposed to machining out the exhaust cover.

I'd be interested to hear anything else you have to say about installing the GT-SSs (I was going to post a question about it anyway). By turbo brackets, I assume you mean the turbo support braces/brackets? Do the foul on something, or just not fit period? Any solutions/recommendations (or any other thoughts)?

Thanks :P

I assume you have a 32 gtr. If you are going to fit them on the car i dont know how hard it is but it wont be easy . I have fitted turbos many times on a gtr with engine in the car but never thses bastard dumps ( they are a bastard let me tell you ) . I fitted them on a 34 gtr but with engine off the car and with gtss turbos all i did was machine off the tongue of the dumps flat then bolted them on the turbos . When i tried to assemble the engine the o2 censor ( rear dump) was in the way of the coolant and vacium tubes so i had to mod the tubes to fit them on !! Depending on where your rear dump o2 bung is you may have to do the same too .

If you have a good look at your dumps you will see there is no place to bolt the turbo support brackets and unless you go to a lot of trouble to make some different bracket you cant bolt them on .

The best solution ? Sell them and use HKS dumps , they are a direct bolt on job and eveything fits on .

The other thing you will find is :The rear dump ( that bastard again ) will be touching your air cond discharge hose, if you leave it on it will melt it in about 5 minutes so make sure you remove it and replace it with a copper tube ( a bastard of a job on the car after you find out it touches ) so do it while the turbos are off the car and you have plenty room there .

The only advantage with these dumps, the front pipes are very easy to fit on !!

If you need to know anything else feel free to p.m.

lwells Grand Master

lwells

Posted
  • Author
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Have you talked to Nath about the machining? He can help you out, he has everything in house

No, it never crossed my mind he did this sort of thing in house? Thanks for the tip. I'll get on to all the recommended places on Monday; got distracted today :D

  • 1 month later...
lwells Grand Master

lwells

Posted
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I assume you have a 32 gtr. If you are going to fit them on the car i dont know how hard it is but it wont be easy . I have fitted turbos many times on a gtr with engine in the car but never thses bastard dumps ( they are a bastard let me tell you ) . I fitted them on a 34 gtr but with engine off the car and with gtss turbos all i did was machine off the tongue of the dumps flat then bolted them on the turbos . When i tried to assemble the engine the o2 censor ( rear dump) was in the way of the coolant and vacium tubes so i had to mod the tubes to fit them on !! Depending on where your rear dump o2 bung is you may have to do the same too .

If you have a good look at your dumps you will see there is no place to bolt the turbo support brackets and unless you go to a lot of trouble to make some different bracket you cant bolt them on .

The best solution ? Sell them and use HKS dumps , they are a direct bolt on job and eveything fits on .

The other thing you will find is :The rear dump ( that bastard again ) will be touching your air cond discharge hose, if you leave it on it will melt it in about 5 minutes so make sure you remove it and replace it with a copper tube ( a bastard of a job on the car after you find out it touches ) so do it while the turbos are off the car and you have plenty room there .

The only advantage with these dumps, the front pipes are very easy to fit on !!

If you need to know anything else feel free to p.m.

Just for those who are searching for info on the above, I have posted a reply here:

http://www.skylinesaustralia.com/forums/in...dpost&p=2124191

lwells Grand Master

lwells

Posted
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Posted
APM in Albion Park seem to do some pretty great work.

In case you didn't see in the post I linked to above, thanks for the recommendation to Oak Flats Muffler Men. 4PM on the day the Queen's birthday and they got the job done a treat :O

:)

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