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Underbody braces, turbos and more!

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PostPosted: Tue Jan 08, 2008 2:34 am 
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Joined: Fri Dec 16, 2005 1:22 am
Posts: 470
Location: Holden Alberta
I absolutely have to agree with T3 ragtop on this one. Remove the IM, (do not just stuff it with a rag) and match both bores properly, with a rotary tool or file. Then clean it thoroughly. (I end up using lots of brake-clean and lots of paper towel most of the time…) :lol:
I know it sucks cuz there’s a lot of work involved, but when it comes to performance, the devil is in the details… So get yourself a file and a can of coffee, cuz you’re going to be there a while…
Ultimately the end product should have a nice, smooth transfer between both castings. That being said, any steps in the transfer, be it internal defects (burs and such), misaligned ports and or even excess gasket material (any little bit of the gasket that ends up protruding into the bore) should be removed to increase flow. Also, try to make the bore as straight as possible. No weird low spots or dips in the middle… and, do yourself a favor, take your time with it. No sense in wrecking a valuable intake cuz you got impatient. :roll:

Good luck!
:wink:

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The other 5% are good 'ol Alberta boys saying "Hear, hold my beer... NOW WATCH THIS!!!".
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PostPosted: Wed Jan 09, 2008 3:42 pm 
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Joined: Thu Dec 14, 2006 3:02 pm
Posts: 163
Location: Anchorage Alaska
ok, maybe some people got confused on what I was saying, im saying its one of the cheapest and easiest mods to do to these cars, porting and polishing the im is great, but weather you bore the im to the size of the tb, or larger then the tb, that dosent matter, just as long as you have bored it to at least the size of the tb, you will get the performance... im wondering, if you bore the intake ports on the head, can you still use the stock im gasket, and just cut part of it, or do you have to have one custome made, or buy the gasket material and make it....


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PostPosted: Wed Jan 09, 2008 6:29 pm 
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Joined: Fri Aug 11, 2006 1:29 am
Posts: 732
Location: Ottawa, ON
I think you can use the stock gasket, i think most guys just throw on the gasket and trace it on the manifold and thats what they port.


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PostPosted: Mon Jan 14, 2008 10:40 pm 
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Joined: Thu Oct 05, 2006 9:46 am
Posts: 116
Location: Singapore
metrojunction wrote:
lol, no 4banger, chroming does nothing to help the performance of the car, if your looking to loose some vibration in the upper rpm's then why dont you get some polyurethane motor mounts? headers can be a great improvement to the ride of thease cars, but I think there needs to be a balance between the amout thats coming into the intake, and the ammount thats going out the exaust...

i am using poly urethane mounts now....and it vibrates alot...esp when moving off @ biting point :lol: :lol:


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