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| Modded intake for v6 (Page 2/3) |
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M.aaron80
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MAY 20, 11:25 AM
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Can someone sell me a modded a modded Intake then? I’ll give you my stock as a core also.
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Notorio
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MAY 20, 11:03 PM
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cvxjet, how did you cut the intake? Also, what diameter Aluminum pipe did you use for the piece to weld on? It's nice to see a design like this retaining the EGR for purposes of smog testing. [This message has been edited by Notorio (edited 05-20-2020).]
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cvxjet
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MAY 21, 01:06 AM
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I believe it is 2 ID 1/4" wall tubing but I will go check........I used a number of tools to do the cutting- Did some drilling, and also picked up a couple of carbide cutting wheels for my B&D "Dremel" tool.......Simply put, it took time and patience...
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cvxjet
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MAY 21, 12:23 PM
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Notorio, here is some more pics......The tubing was 2" ID/ 1/4" wall and 6" long. Also, when I did get done removing the section out of the manifold, I cut out and saved the PCV nipple, because anything you can find to take it's place will stick out so much it tends to interfere with the fuel rail. I drilled a hole that was tight and then tapped it in with some RTV around it to make sure of a good seal.
 [This message has been edited by cvxjet (edited 05-21-2020).]
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Notorio
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MAY 21, 06:33 PM
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| quote | Originally posted by cvxjet:
Notorio, here is some more pics......The tubing was 2" ID/ 1/4" wall and 6" long. Also, when I did get done removing the section out of the manifold, I cut out and saved the PCV nipple, because anything you can find to take it's place will stick out so much it tends to interfere with the fuel rail. I drilled a hole that was tight and then tapped it in with some RTV around it to make sure of a good seal.
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That's excellent .... thanks! I just wondered if you could offer a simple 'kit' consisting of the pre-cut tubing and a template that can be applied (idiot proof) to the intake to transfer cutting lines? Do you think JB Weld could stand up in place of getting the welding done?? I'd buy a kit like that b/c now one is just dealing with regular tools in the garage and won't destroy the paint by heating. Perhaps all you'd need was a splash of paint and you're good to go.
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cvxjet
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MAY 21, 07:30 PM
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I don't think JB weld would hold up....and I'm kickin' myself for not taking a pic of the pre-welded manifold in place with a ribbon holding it together....would have been hilarious!
I am going to do a whole post on this mod as soon as I test the car next Sunday....Maybe I can do a pattern and place it on graph paper in a pic that can be printed..
I did take it for a drive yesterday and it seemed to be a bit better above 4000 rpm- in 2nd it revved out to 5200 and was still pulling......
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jjd2296
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MAY 22, 06:52 AM
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I’ll be installing mine this weekend. My mod will Have the plenum hold 25% more air capacity than just the neck mod and the air will get to the middle intake runners faster as there no runners Inside the plenum to channel the air. I’ll take some pics and video of before and after. [This message has been edited by jjd2296 (edited 05-22-2020).]
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jjd2296
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MAY 23, 04:05 PM
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So I forgot to take a before video and o still have to take the after video but I can tell you this made a huge difference! Pulls all the way to 5500! Big improvement. I can cruise at 140 in 4th! And pull to 160 easy. The extra air intake and the 3.4 results in great 👍 improvement but it will need a chip burnt to have it run perfect.
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lou_dias
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MAY 26, 09:30 AM
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Glad to hear it!
The stock Fiero programming is overly rich >4100 rpm... What cam did you use? That's probably what's limiting your power >5500...and perhaps your throttle body... Also - I assume you ported the heads...
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jjd2296
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MAY 26, 10:41 AM
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260h cam but have 1.6 rollers to add at some point. Ported everything. Any suggestions for leaning it a bit? I do have an adjustable fuel pressure reg.
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