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PLASTIC GT MANIFOLD PROBLEMS?


 
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  #21 (permalink)  
Old 25 Sep 2005, 03:56 pm
SuGamer SuGamer is offline
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Quote:
quote:Originally posted by littleblueGT

Does the manifold come with all the "o" rings and gaskets needed for installation? (throttle body gasket, lower manifold to head, "o"rings between upper and lower manifold) Is there a noticable difference in performance in hot weather and stop and go driving conditions due to less heat soak? Is everyone having trouble removing #2 spark plug?
yes.
yes.
and yes.
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  #22 (permalink)  
Old 25 Sep 2005, 06:56 pm
Cal Cruzer Cal Cruzer is offline
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quote:

I don't understand why. [:I] The plastic manifold flows better, making the car run slighty leaner thus part of the power increase.
The car wouldn't run leaner under normal conditions since the sensors are sampling data multiple times per second and the PCM is making decisions about AF ratio accordingly. This keeps it within programmed target AF. The only time it MIGHT be a little leaner is under WOT when the PCM is using a lookup table instead of sensor input for this. However WOT is purposely somewhat richer for this reason.
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  #23 (permalink)  
Old 10 Oct 2005, 10:50 pm
blueberrygt blueberrygt is offline
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Does anyone know if the plastic manifold use different bolts than the stock (aluminum) manifold?
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  #24 (permalink)  
Old 11 Oct 2005, 12:19 am
AZ_IceMan AZ_IceMan is offline
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Yes, the bolts are very different, you will need all new bolts, i did not reuse a single one.
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  #25 (permalink)  
Old 13 Oct 2005, 06:09 am
hyracer hyracer is offline
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Quote:
quote:Originally posted by blueberrygt

Does anyone know if the plastic manifold use different bolts than the stock (aluminum) manifold?
If you puchase the plastic manifold kit from Tommy at www.haynesspeedshop.com you get the proper bolts with the kit.

Deen
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  #26 (permalink)  
Old 26 Oct 2005, 01:41 pm
CruiserDan CruiserDan is offline
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will these new manifolds or even the old gt metal manifolds work with an N/A pt
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  #27 (permalink)  
Old 26 Oct 2005, 04:19 pm
13secPTCruiser 13secPTCruiser is offline
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Quote:
quote:Originally posted by CruiserDan

will these new manifolds or even the old gt metal manifolds work with an N/A pt
i heard that they work... only a little bit of tweaking
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  #28 (permalink)  
Old 28 Oct 2005, 10:14 pm
OurPTGT OurPTGT is offline
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Quote:
quote:Originally posted by Nudle

[^]I replaced the manifold with the plactic one & also installed a new set of NGK platiums and I can definely notice and increase in porformance,gaped the plugs at 32 and no miss. My wife who is no speed demon even noticed a diffrince. I can say WOW! what an improvement.[^]
i think you're not supposed to use platinums? with a boosted engine for spark reasons. Something about spark blowout or sumtin. SuGamer where are you! Help me out here [|)]
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