Intake plenum questions
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Fleet Mechanic
Joined: Aug 2014
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From: piedmont mo
Intake plenum questions
Well guys I'm going to be resealing my intake plenums here soon as mine are definitely leaking bad and truck is very under powered right now. But what I'm curious about is where it's leaking at the plenum is lifting a little under pressure I'm wondering how hard it would be to build some flat ones already have a plate of metal that would work perfect but I'm going to stay with the smaller size inlets due to I'm soon going to be installing my e99 spider and intercooler what do you guys think I should stay with stock or what sorry for the run on just lot of questions here
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Fleet Mechanic
Joined: Aug 2014
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From: piedmont mo
I'm considering resealing the stock plenums I mean I'm not running major boost but I do know before the seal blew I could peg 30psi guage without hitting wot in second and 3rd I'm running a d66 1.00 housing and efuel with 175cc injectors I'm really just curious if anyone else has built a set successfully and if they'd say stay stock or diy a set
Hotshot
Joined: Dec 2005
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From: evansville in
Lots of us have built our own. I did it because of the large turbo I needed more Clarence and wanted to do 3" inlets. If I were doing what you are with an e99 spider I would resize the inlets to match the larger boot diameter. That way you do away with the step down boots and add some additional flow. Will it make any difference? I do not know but I'd sure try it.
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Fleet Mechanic
Joined: Aug 2014
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From: piedmont mo
Well messured e99 spyder its like 2 3/8 or something like that if I can find a boot for that I'll probably match the plenums to the spyder
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Fleet Mechanic
Joined: Aug 2014
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From: piedmont mo
Well got the motorcraft rtv in pulled one of the plenums off my other engine gonna try to build new flat plenums I'll post pics of the results
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Fleet Mechanic
Joined: Aug 2014
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From: piedmont mo
I've not tore my truck down yet but from what I can tell my plenums in my truck do not have these bolt holes circled also my current motor is a 94.5 engine is there any difference there
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Fleet Mechanic
Joined: Aug 2014
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From: piedmont mo
Okay thank you guess I'll just half to tare it down and build new ones based off those wonder if the extra two holes are in the heads possibly oh well I'll figure it out thanks for the quick response
Hotshot
Joined: Dec 2005
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From: evansville in
No on the old heads I do not believe the extra holes are there. You can build your flat plenums based on the set you pulled,just elininate the 2 un needed holes. The others are the same locations.