Gt3076r - Iw Sizing

[huddy]

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

[Simon-S14]

yeah it has -M on the end of the part number....

and its bigger then 1inch thats for sure. Looks like if you got the normal sized gate, then your going to have to bore it out and fit a bigger flaper

[huddy]

anyone got pics?

or had this before???

[Cubes]

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]

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...

[huddy]

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