knocking on n20....
09-06-2009, 08:09 PM
#128
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Thanks for the advice. Honestly. I will look into getting one pretty soon.
Thing is.. People like you actually say things in a way to help another person. And the fact that I've never used nitrous before makes it important to take serious advice seriously.
The thing that I hate is when I'm in here asking for advice and someone just comes in here and straight up calls me a retard for not doing something right and blah blah blah. lol I could care less about the insults but if you intend for me to take you seriously and you just come in here calling me retarded that is some straight BS if you ask me
You're yet another person who I can say has given me some good advice without being a dick. Gotta love it. Thanks dawg
Thing is.. People like you actually say things in a way to help another person. And the fact that I've never used nitrous before makes it important to take serious advice seriously.
The thing that I hate is when I'm in here asking for advice and someone just comes in here and straight up calls me a retard for not doing something right and blah blah blah. lol I could care less about the insults but if you intend for me to take you seriously and you just come in here calling me retarded that is some straight BS if you ask me
You're yet another person who I can say has given me some good advice without being a dick. Gotta love it. Thanks dawg
no prob, i can tell you wanna have a quick car, and theres nothing i like to see more than cobalts stomping fools in socal! I dont mind helping in areas that i have "been there done that" so to say.
P.s. i also help you cause your asking the right/intelligent questions, I can tell you wanna do it the right way your just anxious to spray... thats were my experience comes in and can help you slow it down a little and keep everything together in one piece...
Im a big fan of taking these cars, right of the lot adding some 42's and a 50 shot with a custom tune... (one nasty little car for real cheap and super reliable when off the bottle!)
ok just checking. What about cot? that will cause the idc to go into the 120's-130's...
Do you have a log or a screen shot of WOT you could post?
Also were is the nozzle? i have had mixed results with placement.
Last edited by hungryhip-ccp; 09-06-2009 at 08:09 PM. Reason: Automerged Doublepost
09-06-2009, 09:08 PM
#129
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nozzle is on the rubber piece right before the tb. cot isnt turned off, ill turn it off before the next time we try the car. waiting on the correct jet combination.
09-06-2009, 09:27 PM
#131
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remember conservative timing generally gets more hp/trq. if hes on the verge of knocking its likely you have passed the sweet spot and probably need to back up 3 degrees...
timing needs to be dialed in on a dyno in order to measure hp and trq, you could be past peak hp/trq and not be knocking!
here's a simple way to get around this while street tuning, start off low and conservative 10-12 degrees. run a third gear pull and looking at logs note how long it took to go from say 3500rpm to 6500rpm, add a degree and run again do this until no improvement is seen and back up one degree.
hope this help's guys!
Last edited by hungryhip-ccp; 09-06-2009 at 11:08 PM.
09-06-2009, 10:48 PM
#132
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true, i had been tryin to figure out why the commanded afr kept getting richer, and as soon as i saw you say the cot i was like o yea lol. im gonna make the max timing in the cold 12 degrees and warm like 14. and also have the narrowbands between 900 and 920.
09-06-2009, 11:19 PM
#133
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to the op, i would go 38/24 on the nos jetting. thats a rich 60 shot that will act like a 75 shot under boost. and the rich will be good for trq/idc
as it is now how are you keeping traction with a 75 shot? my car used to blow the tires off with stage 2, 2.9, I/E/H/DP/50 shot.
i always wished i would of done a dual stage set-up with 50 shot and 25 shot. spray 25 in first, 50 in second, and both in third
as it is now how are you keeping traction with a 75 shot? my car used to blow the tires off with stage 2, 2.9, I/E/H/DP/50 shot.
i always wished i would of done a dual stage set-up with 50 shot and 25 shot. spray 25 in first, 50 in second, and both in third
Last edited by hungryhip-ccp; 09-06-2009 at 11:19 PM. Reason: Automerged Doublepost
09-06-2009, 11:32 PM
#134
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cot will command a 10.0 afr if the max levels are exceeded, if you wanted you could just lower the max cot adder setting so it doesent richen it sooo much just a little thats up to you as far as leaving it for good, but for tuning its just gonna screw with you bad...
remember conservative timing generally gets more hp/trq. if hes on the verge of knocking its likely you have passed the sweet spot and probably need to back up 3 degrees...
timing needs to be dialed in on a dyno in order to measure hp and trq, you could be past peak hp/trq and not be knocking!
here's a simple way to get around this while street tuning, start off low and conservative 10-12 degrees. run a third gear pull and looking at logs note how long it took to go from say 3500rpm to 6500rpm, add a degree and run again do this until no improvement is seen and back up one degree.
hope this help's guys!
remember conservative timing generally gets more hp/trq. if hes on the verge of knocking its likely you have passed the sweet spot and probably need to back up 3 degrees...
timing needs to be dialed in on a dyno in order to measure hp and trq, you could be past peak hp/trq and not be knocking!
here's a simple way to get around this while street tuning, start off low and conservative 10-12 degrees. run a third gear pull and looking at logs note how long it took to go from say 3500rpm to 6500rpm, add a degree and run again do this until no improvement is seen and back up one degree.
hope this help's guys!
when i got my shitty canned tuned so to speak cot wasn't turned off and when i shifted into 3rd my whole 3rd gear wot pull my afr gauge would just read 10.0 and i for a bit i thought my aem wb gauge was messed up but i realize it was my shitty ass tune.
to the op, i would go 38/24 on the nos jetting. thats a rich 60 shot that will act like a 75 shot under boost. and the rich will be good for trq/idc
as it is now how are you keeping traction with a 75 shot? my car used to blow the tires off with stage 2, 2.9, I/E/H/DP/50 shot.
i always wished i would of done a dual stage set-up with 50 shot and 25 shot. spray 25 in first, 50 in second, and both in third
as it is now how are you keeping traction with a 75 shot? my car used to blow the tires off with stage 2, 2.9, I/E/H/DP/50 shot.
i always wished i would of done a dual stage set-up with 50 shot and 25 shot. spray 25 in first, 50 in second, and both in third
Last edited by BillyBboy; 09-06-2009 at 11:32 PM. Reason: Automerged Doublepost
09-07-2009, 03:48 PM
#135
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to the op, i would go 38/24 on the nos jetting. thats a rich 60 shot that will act like a 75 shot under boost. and the rich will be good for trq/idc
as it is now how are you keeping traction with a 75 shot? my car used to blow the tires off with stage 2, 2.9, I/E/H/DP/50 shot.
i always wished i would of done a dual stage set-up with 50 shot and 25 shot. spray 25 in first, 50 in second, and both in third
as it is now how are you keeping traction with a 75 shot? my car used to blow the tires off with stage 2, 2.9, I/E/H/DP/50 shot.
i always wished i would of done a dual stage set-up with 50 shot and 25 shot. spray 25 in first, 50 in second, and both in third
I have a 40 / 28 right now and I was considering going either 42 / 28 or 40 / 26...
I know I'm not getting the potential out of the shot with this 40 / 28 combo because I easily hook in 2nd with it....
Wondering what small things I can do to make the best out of it and get it's true potential...
hmm..
BillyBboy I wouldn't spray a 75 in 1st regardless of the tires... Who knows what that'll do... Even if it hooks you'll be through first faster than you can press in the clutch and you'll redline the car on spray lol.
Idk. Sounds all bad to me
Last edited by ChriSS/SC; 09-07-2009 at 03:48 PM. Reason: Automerged Doublepost
09-08-2009, 12:41 PM
#139
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great info!
when i got my shitty canned tuned so to speak cot wasn't turned off and when i shifted into 3rd my whole 3rd gear wot pull my afr gauge would just read 10.0 and i for a bit i thought my aem wb gauge was messed up but i realize it was my shitty ass tune.
i was debating on when i go to the track to run the 75shot through 1st gear on hoosier qtp's cheater slicks but i am not sure if it will be a good idea... ?
when i got my shitty canned tuned so to speak cot wasn't turned off and when i shifted into 3rd my whole 3rd gear wot pull my afr gauge would just read 10.0 and i for a bit i thought my aem wb gauge was messed up but i realize it was my shitty ass tune.
i was debating on when i go to the track to run the 75shot through 1st gear on hoosier qtp's cheater slicks but i am not sure if it will be a good idea... ?
Whats up chris?
well i dont think you will break anything i think it will just blow the tires off... i think its too much trq.
remember keep you rev limit low in first gear only if your gonna be spraying a big shot like that, if you break loose you'll rev way past the limiter
for example if i try and run full boost in first gear, when i break loose the rpm fly right past my 7750 limiter and go past 8000 before the rotating mass of the crank and pistons actually slows down...
if your on stock valvtrain, set your limiter in first for 7000-7200 and it will actually rev to 7500 or so which is fine just not for substained amounts of time (road coarse racing)
im revving to 8k on stock balance shafts... all the time... all i have is 78lb valve springs and titanium retainers. and right now at 8k on 22psi im flowing 40lb/min in my logs
09-08-2009, 01:23 PM
#140
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Whats up chris?
well i dont think you will break anything i think it will just blow the tires off... i think its too much trq.
remember keep you rev limit low in first gear only if your gonna be spraying a big shot like that, if you break loose you'll rev way past the limiter
for example if i try and run full boost in first gear, when i break loose the rpm fly right past my 7750 limiter and go past 8000 before the rotating mass of the crank and pistons actually slows down...
if your on stock valvtrain, set your limiter in first for 7000-7200 and it will actually rev to 7500 or so which is fine just not for substained amounts of time (road coarse racing)
im revving to 8k on stock balance shafts... all the time... all i have is 78lb valve springs and titanium retainers. and right now at 8k on 22psi im flowing 40lb/min in my logs
well i dont think you will break anything i think it will just blow the tires off... i think its too much trq.
remember keep you rev limit low in first gear only if your gonna be spraying a big shot like that, if you break loose you'll rev way past the limiter
for example if i try and run full boost in first gear, when i break loose the rpm fly right past my 7750 limiter and go past 8000 before the rotating mass of the crank and pistons actually slows down...
if your on stock valvtrain, set your limiter in first for 7000-7200 and it will actually rev to 7500 or so which is fine just not for substained amounts of time (road coarse racing)
im revving to 8k on stock balance shafts... all the time... all i have is 78lb valve springs and titanium retainers. and right now at 8k on 22psi im flowing 40lb/min in my logs
09-08-2009, 11:07 PM
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09-09-2009, 04:43 PM
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09-09-2009, 07:09 PM
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just run a 200 shot on a stock cobalt on 25* of timing and a 2.6 pulley, it'll be fast lol. i'm 100% kidding so don't take any of that advice if your a newb to cars lol.
09-09-2009, 07:14 PM
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hmmm well i know where to get the springs but where would i be able to pick up some cams from? and also how hard would it be to tune for the cams? I imagine with that kind of head work + nitrous my balt would have a prety good size powerband.