N20 problems...need help
07-08-2010, 07:56 PM
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N20 problems...need help
What can cause you to lose power in a certin gear as you spray? Was doing a pull on the nitrous and 2nd gear pulled hard but then i shifted into 3rd and it started losing power. I did a 3rd gear pull off the nitrous and it was fine so i did another on the nitrous and it started losing power agian 
Why is this only happening in 3rd?
Why is this only happening in 3rd?
07-08-2010, 08:03 PM
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So that would be in the tune? and why only in 3rd then?
Yea 2nd pulled hard agian on the spray
Yea 2nd pulled hard agian on the spray
Last edited by StreetLC; 07-08-2010 at 08:03 PM. Reason: Automerged Doublepost
07-08-2010, 08:09 PM
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07-08-2010, 08:14 PM
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Knock Retard would be because of detonation...
might only be doing it in 3rd bc its only knocking in 3rd..
but for u to actually FEEL it losing power.. i feel like its not just pulling timing.. because ive had my car pull timing but ive never been actually able to FEEL it lose power
but in all honesty id get hptuners or get a data log on a 3rd gear pull and see if its pullin timing.. if u do it and its clean.. u know its somethin with the bottle pressure or something along those lines
might only be doing it in 3rd bc its only knocking in 3rd..
but for u to actually FEEL it losing power.. i feel like its not just pulling timing.. because ive had my car pull timing but ive never been actually able to FEEL it lose power
but in all honesty id get hptuners or get a data log on a 3rd gear pull and see if its pullin timing.. if u do it and its clean.. u know its somethin with the bottle pressure or something along those lines
07-08-2010, 08:27 PM
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Selenoid is good, ic pump working, plugs are new.........has to be in the tune
07-08-2010, 09:33 PM
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When i did the pull i was runing 100 cotane.......Should i get my tune reflashed or something?
07-09-2010, 03:14 AM
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07-09-2010, 03:38 AM
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I'm almost gonna bet That it is your bottle pressure dropping as it is being sprayed, hence why the longer it is open the lower the pressure gets.
Edit: could be a bad fill also
Edit: could be a bad fill also
07-09-2010, 04:19 AM
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hmmm, check bottle pressure, fuel pressure and see if your cat is getting clogged.
if your running catless and bottle pressure/temp is good then check fuel pump/pressure/filter.
i think zzp has there iat adders turned on still and if you hit high iat's like 158+ it pulls 5-8* timing.
like mentioned already you need to log it to seee what is going on. cause obviously something is up if you have ran 10+ bottles and now its happening.
the reason it would knock in third and not second is cyl pressure is higher in third increasing chance of knock.
are you running unleaded or leaded race gas? cause if its leaded it could of fried an O2. (just throwing it out there)
also on a 75 shot i would be running heat range 8 plugs (bkr8e) which is 2 steps colder. i ran into issues on a 75 with bkr7e which is 1 step colder.
if your running catless and bottle pressure/temp is good then check fuel pump/pressure/filter.
i think zzp has there iat adders turned on still and if you hit high iat's like 158+ it pulls 5-8* timing.
like mentioned already you need to log it to seee what is going on. cause obviously something is up if you have ran 10+ bottles and now its happening.
the reason it would knock in third and not second is cyl pressure is higher in third increasing chance of knock.
are you running unleaded or leaded race gas? cause if its leaded it could of fried an O2. (just throwing it out there)
also on a 75 shot i would be running heat range 8 plugs (bkr8e) which is 2 steps colder. i ran into issues on a 75 with bkr7e which is 1 step colder.
07-09-2010, 01:40 PM
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hmmm, check bottle pressure, fuel pressure and see if your cat is getting clogged.
if your running catless and bottle pressure/temp is good then check fuel pump/pressure/filter.
i think zzp has there iat adders turned on still and if you hit high iat's like 158+ it pulls 5-8* timing.
like mentioned already you need to log it to seee what is going on. cause obviously something is up if you have ran 10+ bottles and now its happening.
the reason it would knock in third and not second is cyl pressure is higher in third increasing chance of knock.
are you running unleaded or leaded race gas? cause if its leaded it could of fried an O2. (just throwing it out there)
also on a 75 shot i would be running heat range 8 plugs (bkr8e) which is 2 steps colder. i ran into issues on a 75 with bkr7e which is 1 step colder.
if your running catless and bottle pressure/temp is good then check fuel pump/pressure/filter.
i think zzp has there iat adders turned on still and if you hit high iat's like 158+ it pulls 5-8* timing.
like mentioned already you need to log it to seee what is going on. cause obviously something is up if you have ran 10+ bottles and now its happening.
the reason it would knock in third and not second is cyl pressure is higher in third increasing chance of knock.
are you running unleaded or leaded race gas? cause if its leaded it could of fried an O2. (just throwing it out there)
also on a 75 shot i would be running heat range 8 plugs (bkr8e) which is 2 steps colder. i ran into issues on a 75 with bkr7e which is 1 step colder.
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