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  #1  
Old 08-14-2005, 09:40 PM
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Exhaust manifold bolt missing...

When I first got my car I noticed that a bolt was missing on the far end on the upper part of my exhaust manifold. I've been planning to get this replaced I just haven't got around to it yet. One of my friends has a bronco with a 5.0 in it. He was missing a bolt and it severly affected his power in the top end. I know a 5.0 V8 is very different than a 2.0 turboed 4 cylinder. I was wondering how much power I can expect to gain from replacing the missing bolt?
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RNR 3" turboback w/ o2 eliminator
255 lph Extreme Motorsports fuel pump
Extreme Motorsports mbc
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Old 08-14-2005, 10:13 PM
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Re: Exhaust manifold bolt missing...

You'll only gain power if it is leaking exhaust from where the manifold meets the head. It would be loud and there would be black soot around the leak area.
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95 GSX:FMIC, 6-bolt, evo 3 16g, 2600 act clutch, 1g bov (crushed), and a 3" turbo back exhaust, dsmlink, dks 272 cams, wideband 02, Coming soon 2.3L Stroker, 1mm oversized valves, crower sprigs. 91 TSI AWD auto, gm 3.5 maf, maft, fmic, emanage, profec e-01, 3" turbo bk exhaust +more little stuff.
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Old 08-14-2005, 10:51 PM
girlieracr_4g63 girlieracr_4g63 is offline
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I have to agree. Sadly no power gain...


Wendy
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Old 08-15-2005, 01:03 PM
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Re: Exhaust manifold bolt missing...

Ah I just checked under my hood around my exhaust manifold and found that there was hardly any sign of leaking where I thought it was. Although there is alot of black soot and just gunky stuff on a different spot on my manifold. I'm guessing maybe my manifold is not as tight as it could be and it is leaking. Thank you for the help
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95 GSX 5 speed
2.3L stroker bored .020 over
Built head
Bullseye/Borg Warner T04B 57 Trim Turbo
RNR 3" turboback w/ o2 eliminator
255 lph Extreme Motorsports fuel pump
Extreme Motorsports mbc
SAFC
Greddy Type S BOV
FMIC (core 28x10.5x3.5)
FIC 650cc fuel injectors
RK Sport Fuel Pressure Regulator

My Car Domain
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Old 08-15-2005, 10:27 PM
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Re: Exhaust manifold bolt missing...

Where is the other spot that it's leaking at?
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95 GSX:FMIC, 6-bolt, evo 3 16g, 2600 act clutch, 1g bov (crushed), and a 3" turbo back exhaust, dsmlink, dks 272 cams, wideband 02, Coming soon 2.3L Stroker, 1mm oversized valves, crower sprigs. 91 TSI AWD auto, gm 3.5 maf, maft, fmic, emanage, profec e-01, 3" turbo bk exhaust +more little stuff.
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Old 08-16-2005, 02:59 PM
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Re: Re: Exhaust manifold bolt missing...

There is black soot on the head on the opposite end that I thought it was leaking.
__________________
95 GSX 5 speed
2.3L stroker bored .020 over
Built head
Bullseye/Borg Warner T04B 57 Trim Turbo
RNR 3" turboback w/ o2 eliminator
255 lph Extreme Motorsports fuel pump
Extreme Motorsports mbc
SAFC
Greddy Type S BOV
FMIC (core 28x10.5x3.5)
FIC 650cc fuel injectors
RK Sport Fuel Pressure Regulator

My Car Domain
Reply With Quote
  #7  
Old 08-17-2005, 08:08 PM
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Re: Exhaust manifold bolt missing...

Replace the missing bolt and if possible replace the gasket make sure all the bolts are torqued down cause unequal pressure could lead to problems.
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95 GSX:FMIC, 6-bolt, evo 3 16g, 2600 act clutch, 1g bov (crushed), and a 3" turbo back exhaust, dsmlink, dks 272 cams, wideband 02, Coming soon 2.3L Stroker, 1mm oversized valves, crower sprigs. 91 TSI AWD auto, gm 3.5 maf, maft, fmic, emanage, profec e-01, 3" turbo bk exhaust +more little stuff.
http://www.ratemydsm.com/member/ez1286/?member=ez1286
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