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Old 10-10-2010, 10:58 AM
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Originally Posted by 01ssreda4
Wow,



Find a new tuner.
If hes got 28.8lb injectors hes getting to be right on the bubble with them. As long as you dont mind having your duty cycle in the 90's most people say the stock injectors are good to 450rwhp on a NA engine.
Old 10-10-2010, 10:59 AM
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Originally Posted by 02sslayer
im running stock injectors, my tuner told me i dont need bigger injectors. i waqs hoping for about 450-460, i fell a little shy of that goal. i almost feel like i did something wrong when i put it back together...i dont know what the deal is that cam is sposed to make 60rwhp and the heads are sposed to make 40 or more, i was making 341rwhp before the h/c swap so why am i 20 hp short??
It NEVER works out like that lol........ IMO you are prolly borderline on injector but the tuner can check the duty cycle and tell you for sure....If you are over 80% start looking in the classifieds for some Redtops. 42's will work but not necessary with your mods. I have 42's (well they are about 48 at our fuel pressure) and have lots of room to grow.....
Old 10-10-2010, 12:16 PM
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Originally Posted by mtuggle86
If hes got 28.8lb injectors hes getting to be right on the bubble with them. As long as you dont mind having your duty cycle in the 90's most people say the stock injectors are good to 450rwhp on a NA engine.
Injectors are not supposed to be over 80%. If you are running a stock injector on 450 whp you are an idiot my friend.
Old 10-10-2010, 04:00 PM
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he dident say what my duty cycle was.
Old 10-10-2010, 05:37 PM
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Originally Posted by 01ssreda4
Injectors are not supposed to be over 80%. If you are running a stock injector on 450 whp you are an idiot my friend.
Yes thats the general rule for picking an injector for an engine. But according to that rule just about everyone with full bolt ons would need injectors also. Theres plenty of people running the stock injectors above 400rwhp on H/C cars with hardly any issues so stfu and quit reading me **** out of a book. You can just about go to the 80% percent duty cycle on an ls1 and then run a 100 shot on top of that and not lean out.

Last edited by mtuggle86; 10-10-2010 at 05:54 PM.
Old 10-10-2010, 05:50 PM
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Tom said you didn't need bigger injectors? Weird...even with my last H/C set up that made 390rwh he said I def needed bigger injectors. I would step it up. Also you talk about running a 100-150 shot on top of your current set up? Bad idea. Invest is a rear end first. You have a lot of ground to cover before you start spraying your current set up. Intake, injectors, rear/gears, TB, Pulleys...you spray a 125-150 shot I will put money on your motor blowing up.
Old 10-10-2010, 06:21 PM
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Originally Posted by *02WS6TURK*
Tom said you didn't need bigger injectors? Weird...even with my last H/C set up that made 390rwh he said I def needed bigger injectors. I would step it up. Also you talk about running a 100-150 shot on top of your current set up? Bad idea. Invest is a rear end first. You have a lot of ground to cover before you start spraying your current set up. Intake, injectors, rear/gears, TB, Pulleys...you spray a 125-150 shot I will put money on your motor blowing up.
hmm thats weird that u needed them and i dont. i know what u mean about the nos, im gonna do that last, this is the order i plan on goin, finish my smaller bolt ons, clutch, 9 inch, fast 102/102 with 100mm maf, i also want to mill my heads for 11.5 compression. then ill get probly a 125 shot and retune it.
Old 10-10-2010, 06:30 PM
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Originally Posted by mtuggle86
Also I find it funny that when you called me an idiot you wrote you instead of you are. It makes you sound like the idiot.
Seriously, put the illegal drugs down crackhead. I understand the English language perfectly. You are an idiot and thoroughly proved it once again. I have run stock injectors on modded cars, it doesn't make it right and doesn't mean I am going to go around recommending it either dipshit. Good day cutie
Old 10-10-2010, 06:35 PM
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hey guys i appreciate the advice from both of you but please dont turn my thread into a huge battle. thanks
Old 10-10-2010, 06:39 PM
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I respect giving good advice, and thats what I try to do. **** pisses me off when somebody comes around and says "hey, half *** your combo, it'll be fine"
Old 10-10-2010, 06:46 PM
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Agreed anything over 80% duty cycle on injectors you should upgrade. 36# injectors are more then enought for N/A.
Old 10-10-2010, 07:15 PM
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Originally Posted by 01ssreda4
I respect giving good advice, and thats what I try to do. **** pisses me off when somebody comes around and says "hey, half *** your combo, it'll be fine"
I never said It was a waste upgrading your injectors. I just said there are plenty of people in the past and present that have ran stock 28lb injectors past 400rwhp all the way up to 450rwhp. You act as though running past 80% DC is impending doom
Old 10-10-2010, 07:23 PM
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Originally Posted by 01ssreda4
Seriously, put the illegal drugs down crackhead. I understand the English language perfectly. You are an idiot and thoroughly proved it once again. I have run stock injectors on modded cars, it doesn't make it right and doesn't mean I am going to go around recommending it either dipshit. Good day cutie
Did I recommend it dipshit? No I didnt I just said 450rwhp Is considered the absolute Limit of the 28lb injectors IF you are willing to run them at 90-100% DC. I never told him to do I just said Many people have and gotten away with it. Including yourself apparently.

Him needing to upgrade is also going to depend on how many rpm's hes turning when hes making his peak power.

Last edited by mtuggle86; 10-10-2010 at 07:30 PM.
Old 10-10-2010, 07:45 PM
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https://ls1tech.com/forums/nitrous-o...injectors.html

https://ls1tech.com/forums/fueling-i...maxed-out.html

https://ls1tech.com/forums/fueling-i...injectors.html

all good threads
Old 10-11-2010, 12:04 AM
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hey heads up i dont mean to drop in on yall but im newly sittin in a 99 ta ls1 with an 80mm tb ceramic coated long tube headers and a baby cam, im not sure of the lift or the duration because the car was half way built when i got it, im looking to turn the car into an all around monster, daily driveability isnt to much of a concern but i kinda need to keep it in mind....now with that being said i also am trying to avoid poppin the motor, i was told to go with around a 600 lift with low 230's for the durations... can anyone help me with some oppinions or something like that? i was looking at either an ms4, tsunami, or an rpm5....thunder racing has me interested aswell because ive seen their cams at work, please drop some knolege or experience this way if you get a second
Old 10-11-2010, 08:37 AM
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Originally Posted by 01ssreda4
Cam swaps don't cost money. Sell your old cam to offset the price of the new cam. Its only the labor. Is it worth your time? To be happy, sure it is.
that would be great if someone would pay new price for a used cam

and in my case I would need injectors, possibly springs, etc
Old 10-11-2010, 12:54 PM
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I meant that it wouldn't be a full price cam swap. If you buy a new cam for 400 and sell your old one for 250 then thats 150 for your new cam. If your worried about 150 bucks then you shouldn't be modding your car in the first place.
Old 10-11-2010, 05:20 PM
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i wouldnt worry about swapping the cam. the tsunami is a great cam, and the gains you're gonna see(maybe 5 hp at _______ rpm) just arent worth the work you're gonna put in.

spend your money elsewhere.
Old 10-11-2010, 05:38 PM
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Originally Posted by *02WS6TURK*
Intake, injectors, rear/gears, TB, Pulleys...you spray a 125-150 shot I will put money on your motor blowing up.
what the **** are you on?

so pulleys, gears, and F.A.S.T. intakes make nitrous motors SAFER? LOL! no.

if he wants an easy 150whp, SPRAY AWAY. dont do a dry shot, and get a fuel pump first.
Old 10-11-2010, 07:40 PM
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Obviously not the same level as you. I was simply suggesting to him that he should cover some bases like a rear and or other HP bolt on mods before he spends cash on a nitrous set up. I never once said Nitrous was safer with those modifications. So relax Biggie Smalls. I know Slayer personally and I was simply making a statement/opinion.



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