blown intake manifold

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Nov 19, 2004

kikoy

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blown intake manifold

am freakin pissed off...i just blew my intake manifole today and i just put new wheels on it.....

it pulled hard...sprayed nitrous and then i decided to back-off and pop goes the freakin weasel.....

am sorry but i just need to vent out my heat....

Nov 19, 2004

4drcivic2k1

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I've done that too. Don't feel bad, its only about an hour swap. You'll probably have to replace the map sensor as well, I did, I also bent the throttle plate.

Nov 20, 2004

Da1lyDr1ver

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out of cusiousity, how much were you spraying?

Nov 20, 2004

kikoy

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i was spraying 75 shot........map sensor too?.....

Nov 20, 2004

skarteez

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ive heard of this before. how does it happen, likke why? spraying nitrous at the wrong rev rannge? also due to ours bein plastic? hehe

Nov 20, 2004

kikoy

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am using a wet kit 75 shot and am guessing that fuel puddled at the manifold plenum and then it back-fired when i let the gas off

Nov 20, 2004

4drcivic2k1

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Yep. I destroyed the map sensor when it exploded, so you may want to look into that too.

Nov 20, 2004

big_daddy_b_99

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hmm i sprayed a 75 on my auto 02 lx a bunch of times like 3 bottles worth and never had that problem. hell i sprayed from a stop a bunch of times when i'd race and still have no problems did you have the nozzle placed too close to the throttle body? Also is yours on a push button or do you activate it and then it sprays at wide open throttle? mine was set up on a wide open throttle switch so when i'd spray from a stop it would shoot to 3k rpm's and everything was fine.

Last edited by big_daddy_b_99; Nov 20, 2004 at 04:50 PM.

Nov 20, 2004

opto_isolator

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Quote:

Originally Posted by kikoy

am using a wet kit 75 shot and am guessing that fuel puddled at the manifold plenum and then it back-fired when i let the gas off

Fuel won't puddle in the manifold, its injected directly into the head. N20 can't puddle in the manifold either, its a compressed gas and will expand.

Most likely what happened is that somehow you were still spraying when you took your foot off the gas.....

Nov 20, 2004

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4drcivic2k1

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I was running a wet 50, and the fuel puddled in the manifold.

Nov 20, 2004

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jdm_bb

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that's why go all motor.... haha

Nov 20, 2004

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kikoy

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its ok though.....am just waiting for the new manifold and map sensor...and yah am using a WOT....its also a good time to see if i can make a fab. intake manifold while the new one is one the way........