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Flatness of mating surfaces (intake manifold)
(Technical Discussion & Questions - by pmbrunelle, started: 01-01-2019, last post: 2019-01-01 20:16:55 CET)
Once upon a time, I was an inexperienced Fiero owner... and I may have been a little overzealous with cleaning the middle intake manifold's mating surfaces with sandpaper / scotchbrite.As I did not measure anything before/after, I don't know how much material I removed, or if I removed anything...
Score: 633, Size: 56 bytes
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Lower intake cold air passage
(Technical Discussion & Questions - by Lilchief, started: 11-29-2013, last post: 2013-12-01 01:29:26 CET)
Since I have repaired my air leak in the lower intake, cold air intake passage with new rubber cover, my power is down from when it was leaking. Was thinking if I could adapt some type of valve that would open at wot I might get that power back. It ran really good when the old plug got sucked...
Score: 633, Size: 38 bytes
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LS4 engine/LS2 intake
(Technical Discussion & Questions - by busa_powered, started: 11-18-2015, last post: 2022-07-16 23:41:30 CEST)
A Fiero has a ls4 engine from an Impala SS, with a LS2 intake Would the LS2 intake/engine cover fit this setup with an ls4 engine.Like something like thishttp://ep.yimg.com/ay/yhst-...manifold-cover-7.jpgI'm assuming I cant use the stock cover that came with the ls4Or is there something unique...
Score: 633, Size: 34 bytes
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pcv fresh air intake hose?
(Technical Discussion & Questions - by maybenot, started: 11-25-2013, last post: 2013-11-26 04:00:10 CET)
hey guys,i was feeling for an exhaust leak on glass side of engine(which is it officially left or right?), and i noticed a tube out of the valve cover. a quick search of the archives and i found it to be the fresh air intake for pcv system. there are many posts explaining the location of both...
Score: 633, Size: 35 bytes
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How long should a pressurized intake hold pressure?
(Technical Discussion & Questions - by Tweeder, started: 05-15-2014, last post: 2014-05-16 03:56:11 CEST)
I have found a few leaks by pressurizing the intake through an adapter on the throttle body. I have also,done the carb cleaner trick as well. I have really bad hearing so it's hard to pinpoint where a leak is coming from. I've had leaks from the maf, iac, upper intake under the supercharger,...
Score: 633, Size: 59 bytes
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Felco Intake plenum gasket question
(Technical Discussion & Questions - by 4thfiero, started: 10-27-2013, last post: 2013-10-28 16:04:45 CET)
Hey guys, so...REALLY stuoid thing happened, im replacing my lower intake plenum gasket (between the block and the lower intake plenum) ...removed the upper plenum, and fuel rail obv...took lower plenum out, replaced gasket...torqued her down, then realized that my freaking lower plenum was bolted...
Score: 633, Size: 44 bytes
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Any Good Intake / TB Porting Services out there Still?
(Technical Discussion & Questions - by SpaceLion, started: 04-04-2020, last post: 2020-04-06 04:55:26 CEST)
A lot of shops and services seem to be closed down these days. It's getting harder to find performance parts in my experience. I was wondering if anyone knows of a good individual or company who offers porting services for the upper and middle intake manifolds and possibly boring the TB? Or heck,...
Score: 633, Size: 64 bytes
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Help! Replacing lower intake. Any suggestions on better parts to replace?
(Technical Discussion & Questions - by TheWonkiestThing, started: 03-17-2019, last post: 2019-03-20 03:30:31 CET)
Hey I just got this lovely 88 Formula 5 speed a year ago. I'm probably way to young to be into Fiero's as it was made 9 years before I was born but ever since my Dad told me about them (although he was more into F-Bodys) I couldn't stop wanting one. And so here we are, I got the replacement intake...
Score: 633, Size: 90 bytes
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Quick 3.1 lower intake question...... Have a look, please
(Technical Discussion & Questions - by Indyellowgt, started: 07-15-2017, last post: 2017-07-15 17:11:23 CEST)
Ok.. Short of the long...Is there a difference between the iron block/head 3.1 vs 2.8 Lower intake gasket?I've combed thru the archives and it seems like no difference.. Now I'm talking the iron head not the aluminum head 3.1 here.Now, that being said , I discovered after the fact of install, I am...
Score: 633, Size: 69 bytes
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added holley intake and no gas being injected
(Technical Discussion & Questions - by Dmbowers98, started: 01-20-2014, last post: 2014-01-20 22:53:02 CET)
I added the new manifold and the carb from holley and we're getting fuel pressure up to the carb but when we roll it over it doesn't start spraying. Any ideas on what this could be?
Score: 633, Size: 56 bytes
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