This is topic results of my engine in forum Tech Talk at Northern California Ford Owners  .


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Posted by 281n/a (Member # 1465) on :
 
well i got a brand new ford engine in my car but my mechanic took apart my old engine and there was major damage 2 bent rods #4 and #7 2 cracked pistons #4and#7 and when he removed my intake manifold there was a big chunk of piston inside,also #4 spark plug was melted he had to pull the cam off just to remove it this was all caused by a dry nitrous kit from nos.I have researched and found many 4.6 99-up have blown engines with dry kits so i would advise to buy a nx wet kit or their new fogger kit coming out in jan also if your willing to play ask yourself one question are you willing to pay?cuz i wasn't live and learn that's all i can do
 

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Posted by cobraman1994 (Member # 467) on :
 
so your saying the NOS dry kits tend to blow shit up? thats always nice info too know
 

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Posted by 99gt-UJSTLST (Member # 584) on :
 
hey sorry to hear of all the damage

yea all power adders have their down soide bro
you just need to ahve it tuned right couse god nows I have blown my share of motors due to lack of tuneing

so did you get forged internals or a stock block
 

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Posted by shade-tree (Member # 298) on :
 
what size shot (or jet) were you running when she blew?
 

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Posted by PseudoCobra (Member # 1689) on :
 
I have a nos powershot for sale, 100 shot any takers, $400
 

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Posted by 281n/a (Member # 1465) on :
 
100 shot,im not saying dry kits are bad for all cars im saying its bad for 99-up stangs the 96-98 guys seem to be running ok but i think its got something to do with the returnless fuel system,javier i got a new motor from ford im dumping the forged pistons and rods into my backup motor im building
 

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Posted by White02GT (Member # 611) on :
 

quote:

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Originally posted by 281n/a:
100 shot,im not saying dry kits are bad for all cars im saying its bad for 99-up stangs the 96-98 guys seem to be running ok but i think its got something to do with the returnless fuel system,javier i got a new motor from ford im dumping the forged pistons and rods into my backup motor im building

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quote:

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Originally posted by 91sleeper:
LOL I dunno.

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No shit you don't know, so why answer? I was asking him anyways.
 

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Posted by 281n/a (Member # 1465) on :
 
my cousin works for ford and he hooked me up on a new motor for 1500 but retail is about 5,000 for a new motor i wasn't under warranty and even if iwas i don't think ford would have replaced it
 

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Posted by White02GT (Member # 611) on :
 
Cool, not a bad deal in the end. Still going to put a built engine in it?
 

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Posted by 2000BlackGT (Member # 283) on :
 
so the heads/intake and everything is worthless?
 

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Posted by Mirza (Member # 135) on :
 
thats why I say 2 thumbs up to NX
 

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Posted by 99gt-UJSTLST (Member # 584) on :
 

quote:

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Originally posted by 281n/a:
my cousin works for ford and he hooked me up on a new motor for 1500 but retail is about 5,000 for a new motor i wasn't under warranty and even if iwas i don't think ford would have replaced it

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quote:

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Originally posted by 99gt-UJSTLST:
2000BlackGT
I dont think he jacked the heads he just craked some pistons that all that would happen with the car runing lean like it did

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He needs to check to see if they're good then sell them
 

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Posted by hidnn.o.s. (Member # 1219) on :
 

quote:

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Originally posted by 99gt-UJSTLST:
you just need to ahve it tuned right couse god nows I have blown my share of motors due to lack of tuneing

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quote:

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Originally posted by White02GT:

quote:

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Originally posted by 91sleeper:
LOL I dunno.

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No shit you don't know, so why answer? I was asking him anyways.

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quote:

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Originally posted by 91sleeper:

quote:

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Originally posted by White02GT:

quote:

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Originally posted by 91sleeper:
LOL I dunno.

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No shit you don't know, so why answer? I was asking him anyways.

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This is why you are the asshole of the board.

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quote:

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Originally posted by 2000BlackGT:

quote:

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Originally posted by 99gt-UJSTLST:
2000BlackGT
I dont think he jacked the heads he just craked some pistons that all that would happen with the car runing lean like it did

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He needs to check to see if they're good then sell them

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Im 99% sure the heads are fine all he did was lean the car out, ping and cracked the pistons if any thing the block is what would be bad
he might of scrached the cylinder walls, and maybe spun a bearing or 2

but he does need to take them to a machine shop and have them looked at to make sure they cool

[ December 09, 2002, 09:40 AM: Message edited by: 99gt-UJSTLST ]
 

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Posted by 91sleeper (Member # 779) on :
 
your welcome
 

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Posted by Drift-GT (Member # 762) on :
 
Here is my take on Nitrous. I am not going to out right say that dry system are bad and you should never put them on, but. When injecting nitrous into the motor you must have that extra ratio of fuel almost simultaneously to counter act the extra “air” (nitrous). The way most dry kits work is you have one nitrous injector (usually in or near the TB), the way fuel is dealt with is to up your fuel pressure to enrich your mixture. This works to a point, but IMO the fuel does not get to the cylinder fast enough. I would not go over a 75hp shot when running the dry set up.
The best way to go is a direct injection wet set up. Every cylinder has its own nitrous/fuel injector. This insures that the nitrous to fuel ratio will be there when you squeeze. Now this is a pain in the ass because you have to drill and tap for every injector. But now NOS has that new injector piggy back system (don’t remember the exact name but you know what I am talking about). This I think is an excellent way to go. In theory you could run a wet system like you do a dry and have one injector near or in the TB but then you might get what is called a nitrous burp/fart (depends on who you talk to). This is when the fuel and nitrous are injected into the manifold and the extra gas sometimes gets caught in a pocket/crack/crevice. And when the motor get hot enough and in the right conditions the extra fuel ignites and well draw your own conclusions. Nitrous is great but not for the faint of hart, do your research and do it safe. Peace
 

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Posted by 91sleeper (Member # 779) on :
 
Direct Port
 

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Posted by shade-tree (Member # 298) on :
 
IMHO the systems between the upper and lower intake for EFI cars get the job done pretty safely. Too bad they "start" at the 200 HP level and we're just a bunch of double digit door slammers.
 

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Posted by Sisky Wolf (Member # 350) on :
 
To..99GT....what rwhp are you pulling and have you posted any times at the track...thats a lot of boost!!
 

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