i hear everyone talking about the relief cuts where do i cut how far do i cut??? and what are the uprgraded studs and bolts everyone pushes to do before install read about it but cant see any direct info on how to do this

 

https://www.miataturbo.net/forums/sh...d+cuts+picture

 

The upgraded studs are for the mani-turbo bolts (and the turbo-DP bolts if you want to get fancy). IIRC they're 8x1.25 exhaust studs and the corresponding nut & lockwasher OR locknut.

 

what is the easiest way to make the cuts and what kind of saw works best????

 

A sawzall with a metal-cutting blade make the cuts pretty well, but for the corners I resorted to the hacksaw because the sawzall likes to jump out of the cut while you're making it.
I would go back and widen all the cuts to the width of the sawzall blade because I've been told of firsthand accounts where the cuts (made with just a hacksaw) were skinny enough that they fused together with heat.

Is the middle cut really only supposed to go halfwayish through in the link posted?

 

no, it's meant to go all the way through.

TBM - just use a sawzall. Get some earplugs too, it gets LOUD.

 

if it were me i'd just do in between 1 & 2 and 3 & 4 and call it a day....the rest is over the top.

 

also im dumb on the bolt sizes dont understand what 8x 1.25 means grade 8 im guess but what is the 1.25?

 

just take the stud to the hardware store, and find matching studs and nuts.

 

huh so if i am taking the stud to the hardware store than what am i gettting thats diff? im so confused

 

sorry to be so stupid just trying to understand

 

Wait. Im Sorry. I thouhgt you were replacing Studs and nuts. My Bad

 

no i have the greddy kit how it comes but everyone says to replace with upgraded **** the guy a few posts ago said the size but doesnt tell me anything really??? still confused i got the relief cuts figured out

 

If you are replacing the studs and nuts, just take one out and take it to the Hardware store with you, and get the same size stud, nut, and lockwasher, Or Stud and locknut

IIRC they're 8x1.25 exhaust studs and the corresponding nut & lockwasher OR locknut.

 

You go to the parts store and look for the exhaust studs that say "8x1.25" on the baggie. They're a little over an inch long.. and they'll probably be black...

If you can't figure that out, go to the guy behind the counter and ask him where the "grade eight, size eight by one-twenty-five millimeter exhaust studs" are.

 

Thats The Kind Of Answer Im Looking For Simple And To The Point Thanks!

 

M8 is the size of the threading.

You'd want (4) M10 studs for the manifold to turbo flange, IIRC.

1.25" is the tread pitch. So look for M10x1.25 Grade 8 Automotive Studs.

You'll want M8 for the turbo to downpipe.

Make sure they are long enough so you can fit your new nuts on them, but not too long that the stick out and get in the way of mounting things.

like this:


Dont take my word for the sizing, bring the manifold and turbo with you and make sure. ACE hardware sells everything you need.

 

Brain - the greddy uses the same diameter bolts/studs for mani-turbo and turbo-DP.

 

Since they are Metric, they will probably be rated as "Class 10.9" rather than Grade 8.

 

went to ace hardware today no luck at all the ppl working there didnt help at all either couldnt find the sizes i need or the grade i wanted they only had class 8.8 or something like that this is frustrating lol!