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Gt3076r - Iw Sizing

huddy

By huddy,
in Engines & Forced Induction

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huddy Veteran

huddy

Posted
Posted

sorry to have another 3076r thread.

before i ordered my 3076r i did some research and i remember someone saying that when ordering the IW option, make sure you get the over 1" size wastegate rear housing.

my rear housing is a .63 IW however the wastegate hole is 1".

drumaddict on here has the same turbo but on a rb20 and first testing shows that it has ridiculous over boosting problems...

AM I CRAZY??? or is there a wastegate hole that is larger than the 1" like i first thought?

i have the option of getting mine ported out with a new flap welded on for a couple hundred bucks... but realistically i'd prefer to get the correct exhaust housing like i was after...

thanks in advance

-Huddy

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Cubes Grand Master

Cubes

Posted
Posted

The M version has the larger flapper from garrett of which is ~$100 more than the std.

They do nothing more than port out the hole and then shove a larger flapper on it. So for a couple hundred get the same done from the local turbo shop. Its really not worth wasting $$ on selling and buying the M version. Get yours modded; its the same thing.

Then... Ensure you run a bell mouth dump; don't go with a split unless the setup/inlet flange section is the same as the HKS split dump.

If you want a pic of the HKS dump I have a pic I saved from a kind person who posted pics of the HKSGT3037ProS :)

huddy Veteran

huddy

Posted
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Posted

ooh yes please post the pic up

i'm hoping that i can get it exchanged and only pay the extra $100 rather than get mine modified - as this was what i requested initially (specifically larger than 1", i just didn't state that is was the 'm' version...)

*waits for pic... :)

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