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| Z51L9889 | Ported FIRST Intake -- Progress thread w/ pics | ||
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Guru Newb
 
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I've begun porting my FIRST intake for my 383 build. I will be gasket matching the base to a FelPro 1205 and opening up the base and runners such that the passage tapers from the inlet at the plenum to the minimum area at the intake manifold exit.
Here are some pictures of the intake parts before porting and my initial (very) rough-in of the first runner. As the pictures show, I've got a fair amount of material to remove, but these things have plenty of meat for porting. To give an idea of the size, the wooden balls shown in the porting pictures are 1.75" in diameter. A stock TPI base and runners have a diameter of 1.47". The goal is to get the runners sized to pass a 1.875" ball through the runner all the way into the manifold where the shape transitions to a rectangle. I'm at about 1.86" now -- I'm sneaking up on it so I don't break through. I'll post more progress pics as I go. Enjoy. http://s137.photobucket.com/albums/q224/z51l9889/FIRST%20Intake/ |
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Posted on: 2008/11/26 3:34
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| Randyj75 | Re: Ported FIRST Intake -- Progress thread w/ pics | ||
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Guru Newb
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Looks good, keep us posted.
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Posted on: 2008/11/26 7:47
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'90 Corvette, M6,a few mods, more to come 
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| Matatk | Re: Ported FIRST Intake -- Progress thread w/ pics | ||
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Webmaster
 
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Looks like a good start. You can be the inspiration for my portwork over the winter.
Matthew |
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Posted on: 2008/11/26 13:31
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Ported FIRST Intake -- Progress thread w/ pics | ||
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Elite Guru
 
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OK - time to clue in the 'tard...
What is this? [img width=300]http://s137.photobucket.com/albums/q224/z51l9889/FIRST%20Intake/?action=view¤t=P1070010.jpg[/img] [img width=300]http://i137.photobucket.com/albums/q224/z51l9889/FIRST%20Intake/P1070010.jpg?t=1227708151[/img] My '87 plenum did not look like this nope. Attach file:  plenum?.png (855.34 KB) |
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Posted on: 2008/11/26 14:06
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LT5, Marc Haibeck ECM module, AUTOMATIC!!! 
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| cuisinartvette | Re: Ported FIRST Intake -- Progress thread w/ pics | ||
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Elite Guru
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Thats to give you the option of mounting your TB on the side if you want. FIRST is a nice piece, too bad they arent CARB legal.
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Posted on: 2008/11/26 14:40
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| Z51L9889 | Re: Ported FIRST Intake -- Progress thread w/ pics | ||
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Guru Newb
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Quote:
Here's the link to FIRST's website: www.firstfuelinjection.com  |
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Posted on: 2008/11/26 15:47
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