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I Solve Problems
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my buddy and I didn't have such good luck with them. With a freshly recalibrated Craftsman torque wrench, I had brass inserts pull out under the target torque setting and we both had at least one of the tgv-to-head bolt holes collapse, also under the target torque.

I sent an email to TiC/MAW about the issues I had. They sent me a new set and I sent my defective set back to them. I'm glad TiC/MAW has great customer service. :)
maybe use an inch lbs wrench instead to help avoid over torquing.
 

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Thanks. Unfortunately I had the intake manifold off and the MAW TGV connected to it at all 4 corners. The center don't even line up that way. =\

Also instead of bolts I actually had studs at two places on each TGV.

Thanks for the confirmation of torque specs.

Here's a pic of the passenger side. EJ207. STI Version 7 intake manifold

Image Link
Are the other holes between the IM and TGV MAW riser lined up in this picture?
 

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I Solve Problems
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18,254 Posts

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Premium Member
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727 Posts
I have the Cosworth set. Mine came on the car I just bought.
Can anyone post the sizes of the o-rings they have used? One place offering o-rings looks like they are selling blue o-rings. They are very pricey!
The round, top one I have is light blue and the bottom one is darker. They have both taken a permanent set so I have no interest in trying to reuse them. I am ordering Chemical Resistant, Super-Resilient, O-Ring Viton(R) from McMaster-Carr. Sizes 035 and 036.
Update: These o-rings fit perfectly on the Cosworth TGV deletes!
 
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