Too much NOS= cooked motor
12-27-2001, 08:16 AM
#1
Too much NOS= cooked motor
The other day I was driving and some guy in this saturn was speeding up so I used NOS(100HP) and lit the tires up passing him. I only used it for about 2-3 seconds and my car began idling around 5-600 rpm and was shaking. It runs fine but idles rough and I have alot of blowbye out of the valve cover. Any clues what might be the problem. I checked the coil and if I unplug the injector on that cylinder (front center) it is about the same.
12-27-2001, 08:45 AM
#4
Member who somehow became The President of The SE-L Club
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Join Date: Jun 2001
Posts: 16,033
You may have cooked or broke a valve. The blowbye (good clue) your seeing may be the cyliners compression (or lack of) coming up the valve guide. Do a compression test. If that cylinder is dead, your going to need a valve job!
12-27-2001, 09:16 AM
#5
Senior Member
Join Date: Sep 2000
Location: NJ
Posts: 5,630
Make sure you dont have any metallic flakes. The black specs are normal from carbon.
With NOS, you build up a lot more carbon in teh motor.
I had the idling problem too and used a full can of TB cleaner is idle is smooth & normal. Good luck w/ you prob & i hope your motor isnt shot.
With NOS, you build up a lot more carbon in teh motor.
I had the idling problem too and used a full can of TB cleaner is idle is smooth & normal. Good luck w/ you prob & i hope your motor isnt shot.
12-27-2001, 10:01 AM
#17
Originally posted by Max4Speed
hey sprintmax... how much a stillen v2 supercharger will cost INSTALLED?
hey sprintmax... how much a stillen v2 supercharger will cost INSTALLED?
most shops will charge from $600 - $1200
so that leaves a price from $4000 - $4400 it really varies.. I would scout a shop in your area first before you commit to buying an SC.. no sense in buying it if you can't install it
or you can take the brave route like Matt, delio and others and do it yourself
oh and if you buy an SC.. buy a smaller pulley from vortech at the same time.. might as well go higher boost now.. than to have to pay to have it installed later on..
12-27-2001, 10:09 AM
#19
Originally posted by Max4Speed
damn thats like 10 mods i can do to my car if i dont get SC.. how much HP gain?
damn thats like 10 mods i can do to my car if i dont get SC.. how much HP gain?
10 mods that won't equal the power.. unless you get.. well .. lets leave that one alone..
12-27-2001, 10:12 AM
#21
Lotsa blow by from the valve cover? Hmmm. Make sure the offending spark plug isn't broken. I hope you didn't toast a piston ring. Wouldn't hurt to do a compression check. If that is inconclusive, you can go ahead and get a leakdown test. As others have said, you could have also bent/burnt a valve
12-27-2001, 10:16 AM
#22
U wanna try me young boy?
Join Date: May 2001
Posts: 1,024
Originally posted by Max4Speed
cheapest way to smoke other maximas :roleyes:
cheapest way to smoke other maximas :roleyes:
I did hear of a SHO guy running a single NOS injector into his intake and he had exactly the same symptoms. Something about the spray not reaching one particular cylinder, leaning it out and burning up the valves. His next two projects were top-end rebuild
and wet (injector-per-cylinder) NOS setup , instead of the dry / cheater system.
12-27-2001, 10:21 AM
#24
Originally posted by Scruit
and wet (injector-per-cylinder) NOS setup, instead of the dry / cheater system.
and wet (injector-per-cylinder) NOS setup
, instead of the dry / cheater system.
Erik
12-27-2001, 10:41 AM
#25
Stillen quoted me $3400 shipped for a V1 for my 96...I was just curious. If that is Stillen's price, I am sure it can be found cheaper.
Erik
Erik
Originally posted by SprintMax
i have been quoted for the v2 for the 95 - 98 for $3390
most shops will charge from $600 - $1200
so that leaves a price from $4000 - $4400 it really varies.. I would scout a shop in your area first before you commit to buying an SC.. no sense in buying it if you can't install it
or you can take the brave route like Matt, delio and others and do it yourself
oh and if you buy an SC.. buy a smaller pulley from vortech at the same time.. might as well go higher boost now.. than to have to pay to have it installed later on..
i have been quoted for the v2 for the 95 - 98 for $3390
most shops will charge from $600 - $1200
so that leaves a price from $4000 - $4400 it really varies.. I would scout a shop in your area first before you commit to buying an SC.. no sense in buying it if you can't install it
or you can take the brave route like Matt, delio and others and do it yourself
oh and if you buy an SC.. buy a smaller pulley from vortech at the same time.. might as well go higher boost now.. than to have to pay to have it installed later on..
12-27-2001, 10:46 AM
#26
Originally posted by tifosiv122
Stillen quoted me $3400 shipped for a V1 for my 96...I was just curious. If that is Stillen's price, I am sure it can be found cheaper.
Erik
Stillen quoted me $3400 shipped for a V1 for my 96...I was just curious. If that is Stillen's price, I am sure it can be found cheaper.
Erik
12-27-2001, 10:51 AM
#27
Originally posted by tifosiv122
Stillen quoted me $3400 shipped for a V1 for my 96...I was just curious. If that is Stillen's price, I am sure it can be found cheaper.
Stillen quoted me $3400 shipped for a V1 for my 96...I was just curious. If that is Stillen's price, I am sure it can be found cheaper.
12-27-2001, 10:58 AM
#28
Yes...all the dry one's will come around some day...
Erik
Erik
Originally posted by rOaD bEaSt
Let me tell you something I'm sure that you burned spark plugs with your 100 shot I don't think that the maxima is that east to bent a vaulve I bent the vaulve once because I missed the shifting and I was hitting the rev limiter for like 2 sec with NOS and the gear was at normal mode ..
I was using 135 HP wet system ..
If I hear you car sound I will know what it is ?
If you remove the spark coils and you don't feel that the car change then it's something else than the spark plugs and the vaulve .
And I'm hearing about cleaning throttel body I don't think that if you are using nos you will find these dirty things
Maybe this is because you are using dry kit .
My friend has a 300 zx 84 model he used a 53 jet NOS and he bent a vaulve but he missed the shift too, he was using dry kit at the begging but after switching to wet he didn't have this problem
Let me tell you something I'm sure that you burned spark plugs with your 100 shot I don't think that the maxima is that east to bent a vaulve I bent the vaulve once because I missed the shifting and I was hitting the rev limiter for like 2 sec with NOS and the gear was at normal mode ..
I was using 135 HP wet system ..
If I hear you car sound I will know what it is ?
If you remove the spark coils and you don't feel that the car change then it's something else than the spark plugs and the vaulve .
And I'm hearing about cleaning throttel body I don't think that if you are using nos you will find these dirty things
Maybe this is because you are using dry kit .
My friend has a 300 zx 84 model he used a 53 jet NOS and he bent a vaulve but he missed the shift too, he was using dry kit at the begging but after switching to wet he didn't have this problem
12-27-2001, 11:01 AM
#29
Originally posted by tifosiv122
Yes...all the dry one's will come around some day...
Erik
Yes...all the dry one's will come around some day...
Erik
12-27-2001, 11:08 AM
#30
Originally posted by rOaD bEaSt
The HP that you wanna get it from super charge you can get it from NOS then why do you wanna use both ?
The HP that you wanna get it from super charge you can get it from NOS then why do you wanna use both ?
12-27-2001, 11:13 AM
#31
Originally posted by rOaD bEaSt
Aren't you intrested for the middel east intake runner or you don't care about this **** ?
Maybe you are always looking for the real HP ..
Aren't you intrested for the middel east intake runner or you don't care about this **** ?
Maybe you are always looking for the real HP ..
12-27-2001, 11:53 AM
#34
Originally posted by gtr_rider
OK someone please advise me of what the wet and dry systems are please.
OK someone please advise me of what the wet and dry systems are please.
Basically Wet System.. Nitrous and Fuel are injected into the engine..
on a Dry kit.. the Nitrous kit uses the factory fuel pump and injectors to supply extra fuel but upping the pressure using the Factory Fuel Pressure Regulator...
12-27-2001, 12:30 PM
#35
Originally posted by SprintMax
because i don't feel like spending $70 refilling two bottles everyweek..
because i don't feel like spending $70 refilling two bottles everyweek..
and for 1 month I have been waiting for a new Nitrous Line...mine split in two during the last Maxima meet in New Brunswick...uhh...Erik
12-27-2001, 01:26 PM
#36
Senior Member
Join Date: Jul 2001
Posts: 7,530
Originally posted by tifosiv122
That part does suck...I have gone through 8-9 bottles and I have only had it a few months... and for 1 month I have been waiting for a new Nitrous Line...mine split in two during the last Maxima meet in New Brunswick...uhh...
Erik
That part does suck...I have gone through 8-9 bottles and I have only had it a few months...
and for 1 month I have been waiting for a new Nitrous Line...mine split in two during the last Maxima meet in New Brunswick...uhh...Erik
SuDZ
12-27-2001, 05:43 PM
#38
Thanks for all your suggestions I had my dad check it today hes a mechanic and he said it seems like the skirt of the piston gave way due to over revving which makes sense because i dont have a window switch to kill the NOS at a certain rpm so I guess not buying that cheap part will now cost me some $. I found a motor today with 106,000 miles for $560. I think I will purchase it and rebuild and port and polish the heads and upgrade the head gasket to copper. BTW I have a wet kit. Also my car over revved since I have no window switch and was spinning the tires like nothing.