#128238, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 0
Originally posted by 95_ESi_Person I dropped my intake manifold off at a local machine shop that I deal with on a regular basis and they are looking at it for me. Both I and the machine shop are concerned about the wall thickness after machining. Anybody that has had this done before have any pointers? Should this go in at an angle, or slighly undersized?
Mine is full 60mm.
I do not have an issue with thickness. I did mine by hand though.
#128239, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 1
I matched mine by hand on the Talon with no issues either. I'm looking to go for a smoother finish on this. Don't get me wrong, the last one I did was beautiful, but I'm just going to be lazy on this and have it done on a mill.
#128240, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 2
I ran into the same problem with my machine shop not to long ago. They didn't want to go straight through either, they kept wanting to taper it. I finally talked to another guy there and told him that I really didn't care if they fucked it up, it was a spare anyway, and that if it went through the side I wouldn't hold them responsible. He fixed me up and everything turned out fine. It is kinda thin in some areas(but not paper thin), how thick is your IC piping anyway right? Only cost me $30 bucks too lol. Haven't had a problem yet.
#128242, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 4 Oct-13-09 05:40 PM by 95_ESi_Person
Originally posted by BoostedEclipse What's the best way to do it yourself? Dremel?
I used a dremel with the metal cutting bit (acorn shaped with teeth) and smoothed it out with the rough sandpaper bit when done. I used the white lithium lubricant spray on the bit frequently to keep it from gumming up.
You know, I'll have them mic it out and see how thin it would be. How thin can you go on a cast stocker?
If need be, I'll suck it up and buy an aftermarket if it's messed up.
#128243, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 5
Originally posted by 95_ESi_Person
Originally posted by BoostedEclipse What's the best way to do it yourself? Dremel?
I used a dremel with the metal cutting bit (acorn shaped with teeth) and smoothed it out with the rough sandpaper bit when done. I used the white lithium lubricant spray on the bit frequently to keep it from gumming up. You know, I'll have them mic it out and see how thin it would be. How thin can you go on a cast stocker? If need be, I'll suck it up and buy an aftermarket if it's messed up.
#128246, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 2
Originally posted by 95_ESi_Person I matched mine by hand on the Talon with no issues either. I'm looking to go for a smoother finish on this. Don't get me wrong, the last one I did was beautiful, but I'm just going to be lazy on this and have it done on a mill.
You can get it as smooth as machining with skill and time.
#128255, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 8
It gets pretty thin if you go straight 60mm but I haven't had one crack yet. I had thought of filling it back in with JB weld or something where the manifold necks down, but I haven't had the need.
Erik P. Official 2GNT thread Hijacker Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be... All we know is, He's not The Stig... But he is The Stig's Spartan cousin!
#128263, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 9
How about 55mm? A lot of people say 55 is too much for N/A, but after cams and all the air I want to flow Im going to go with it anyway. Should I have it done 55mm or like 52?
95 Eclipse GS: 10.5:1, Crower 2's and MSII 186 WHP - 150 WTQ 14.697 @ 93.85 MPH......Gone, but not forgotten 99 420A Avenger: Given to my sister 99 GS OZ: Sold 03 Evo 8: Family Car with balls
#128266, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 10
Originally posted by 740 turbo brick How about 55mm? A lot of people say 55 is too much for N/A, but after cams and all the air I want to flow Im going to go with it anyway. Should I have it done 55mm or like 52?
Stock diameter on mine was measured at 53.64mm.
I'm having to have it bored to 57mm as the thinnest outer measures at 59.62mm, and using a couple different degree cutters to match the 60mm OD at the inlet and smooth it into the 57mm bore.
#128270, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 10
Originally posted by 740 turbo brick How about 55mm? A lot of people say 55 is too much for N/A, but after cams and all the air I want to flow Im going to go with it anyway. Should I have it done 55mm or like 52?
If 55mm is too big for NA then why are stock honda TB's bigger than that?
Erik P. Official 2GNT thread Hijacker Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be... All we know is, He's not The Stig... But he is The Stig's Spartan cousin!
#128273, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 13 Oct-15-09 12:08 PM by RoninEclipse2G
Originally posted by BoostedEclipse yeah if I remember right stock Type R t/b's are 68 or 70mm.
I want to say 70mm, but I'm not sure. I do remember that the TB on the GSR I had was obviously bigger than a 420a TB
Erik P. Official 2GNT thread Hijacker Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be... All we know is, He's not The Stig... But he is The Stig's Spartan cousin!
#128274, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 14
Yeah they are way bigger. My buddy has a 99 SI and his is either 70mm or bigger. I meant our cars N/A though, not just in general, my bad. I read somewhere, I think on that place you send your stock TB to get bored out, that 55 is ideal, and 60 makes you lose a little velocity, and the throttle becomes a bit twitchy. I ignored all this and went straight for the MP 60mm though. Ill probably have mine done out to 57mm then, Ill have it there for PnP and injector hump removal anyway.
95 Eclipse GS: 10.5:1, Crower 2's and MSII 186 WHP - 150 WTQ 14.697 @ 93.85 MPH......Gone, but not forgotten 99 420A Avenger: Given to my sister 99 GS OZ: Sold 03 Evo 8: Family Car with balls
#128275, "RE: Intake Manifold Machining to fit 60mm TB" In response to Reply # 15
Originally posted by 740 turbo brick Ill probably have mine done out to 57mm then, Ill have it there for PnP and injector hump removal anyway.
You may luck out... Some people are able to get away with the full 60mm. I had more than enough material on the manifold on the Talon and really opened it up, but this one seems a little skimpy like it was the runt of the casting run.
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