Plastic Manifold in Summer?

[littleblueGT]

How are those plastic intake manifolds doing in summer driving? Are they a noticable difference from the aluminum manifold? Is everyone happy with their choice or are there a few regrets. I haven't seen the oil dip stick bracket listed for the new plastic manifolds. Before I go to install I want everything ready with no surprises.Any one see any cracks on their manifold or was that just the factory installation?

[Mr.2U]

mine just arrived in the box from Tommy.
so i can't give you any feed back yet.

i would be more worried about hitting large pot holes
in freezing weather. and cracking the thing.

[sca037]

It's all good [8)]
This is one of the few mods that has no downside, and after a couple of thousand miles since the swap would hate to go back to the original aluminum intake (2 words: fugget aboudit
The car runs a bit smoother, pulls harder (especially from 4000 rpm and up) and we've noticed a 2 mpg increase in fuel economy since I installed it. And that is in spite of the increased temptation to plant the loud pedal

Brian

[quicksilverdon]

quote:Originally posted by littleblueGT
Any one see any cracks on their manifold or was that just the factory installation?

Mine came with composite (plastic) intake. What cracks are you talking about? [:I]
I replaced plugs & wires, and everything looked fine (took modesty cover off).

[littleblueGT]

There were some earlier postings concerning cracks around the mounting flange from what I remember. At that time it sounded more like the bolts weren't torqued in order and gradually tightened. I never heard how many, but it seemed to be isolated to factory installation.With o-rings you have to snug the bolts evenly, not just start at one side and tighten. Has any one else had a problem or noticed cracking around the upper/lower manifold flanges? Did you make a dip stick bracket or buy one? Take care and be safe.