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> Gst Question Regarding Turbo Upgrades
fishloops1214
post Jul 4 2008, 10:14 AM
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okay the turbo i have is the stock turbo off of a gst i found out. i am having some clearance issues and i was wondering if i have to scrap my turbo and ext wastegate what other kinds of turbos bold directly up to a gst. this includes oil lines and coolant lines if applicable to the turbo. i have everything to match up to a stock gst turbo including the flange, downpipe, oil lines, and coolant lines. soo far if i understand this correctly a 16g will match up and i think the stock gst is a 14b(correct me if i am wrong so i dont sound like an ***** :banana: ) i also wasnt sure if all the oil and coolant lines are the same size fittings for most aftermarkets making turbos interchangable. never worked with turbos so please give me the run down. thanks :57:
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fishloops1214
post Jul 4 2008, 10:18 AM
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also has anyone heard of replacing the fans in rs and gs cars to free up some clearence. my 95 rs is getting packed and if there is an aftermarket fan that could fit and is smaller it would be helpful.
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bryan_root
post Jul 4 2008, 01:12 PM
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what manifold do you have??? is it stock off a gst or is it custom gs,rs turbo mani??? and everything is going to be cramped in there one of your fans is a/c the other on cools if you knew which was a/c im sure you could cut it off maybe.
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fishloops1214
post Jul 4 2008, 02:40 PM
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nah no cutting. its a cast mani off of ebay.
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Rob
post Jul 4 2008, 11:06 PM
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QUOTE(fishloops1214 @ Jul 4 2008, 10:14 AM)
okay the turbo i have is the stock turbo off of a gst i found out. i am having some clearance issues and i was wondering if i have to scrap my turbo and ext wastegate what other kinds of turbos bold directly up to a gst. this includes oil lines and coolant lines if applicable to the turbo. i have everything to match up to a stock gst turbo including the flange, downpipe, oil lines, and coolant lines. soo far if i understand this correctly a 16g will match up and i think the stock gst is a 14b(correct me if i am wrong so i dont sound like an *****  :banana: ) i also wasnt sure if all the oil and coolant lines are the same size fittings for most aftermarkets making turbos interchangable. never worked with turbos so please give me the run down. thanks  :57:
[right][snapback]179392[/snapback][/right]


Are you piecing together a turbo kit? You can't use the stock exhaust mani from a gs-t. The 14b is the stock turbo from a 5 speed 1st generation dsm.
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jonbonazza
post Jul 5 2008, 06:31 AM
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you have to know what flange is on the manifold. that will determine which turbos you can use.
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fishloops1214
post Jul 5 2008, 04:56 PM
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cast manifold off of ebay for a 420a. every mani on ebay thats a cast looks exactly like mine. the one i bought said its flange was for a 16g which i what i was told my turbo was until later when i was researching and found out i was tricked. i know the bolt pattern is completly different and the runners in no way come close to lining up. i have all the parts to my turbo kit. it just sucks cause my hood is getting in the way. i need to cut a hole in my hood to use my external wastegate which i think that would be silly lol :P
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jonbonazza
post Jul 5 2008, 05:29 PM
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So your "16g" really is not a 16g or your manifold really does not support a 16g? how mnay bolts are on the turbo flange on your manifold?
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fishloops1214
post Jul 5 2008, 06:03 PM
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there are 4 bolts. the bolts match the pattern of a stock 4g63 flange
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jonbonazza
post Jul 5 2008, 06:11 PM
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Then you will only be able to use MHI (Mitsubishi Heavy Industries) turbos, such as the 14b, 16g, t-28, etc...
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fishloops1214
post Jul 5 2008, 08:47 PM
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OKAY COOL THANKS MAN. :beer:
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Rob
post Jul 6 2008, 11:37 PM
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QUOTE(fishloops1214)
  i need to cut a hole in my hood to use my external wastegate which i think that would be silly lol  :P




Silly indeed. Sounds like you have a hack job set up.
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fishloops1214
post Jul 7 2008, 12:43 AM
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pretty much
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Rob
post Jul 7 2008, 01:08 AM
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I'd start over and follow a write up if i were you.
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Lewiman06
post Jul 7 2008, 01:50 AM
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from what i've gathered and from when we spoke in jax this is just a fun project and not really a serious build. pretty much just for experience right? to see what you can do on your own.

or did i completely miss something?
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fishloops1214
post Jul 7 2008, 09:38 PM
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pretty much. all in fun ;)

and i could start over but why. i am done. all i need is a turbo that will fit my manifold (most common cast on ebay) with an internal wastegate and tuning and i am done.
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pwee05
post Jul 8 2008, 07:21 AM
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