Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

shelf cam to custom cam?

Thread Tools
 
Search this Thread
 
Old Oct 10, 2010 | 10:58 AM
  #21  
mtuggle86's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2008
Posts: 548
Likes: 0
Default

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.
Reply
Old Oct 10, 2010 | 10:59 AM
  #22  
SOMbitch's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2007
Posts: 6,881
Likes: 3
Default

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.....
Reply
Old Oct 10, 2010 | 12:16 PM
  #23  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

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.
Reply
Old Oct 10, 2010 | 04:00 PM
  #24  
02sslayer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Aug 2009
Posts: 651
Likes: 0
From: longview, wa
Default

he dident say what my duty cycle was.
Reply
Old Oct 10, 2010 | 05:37 PM
  #25  
mtuggle86's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2008
Posts: 548
Likes: 0
Default

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; Oct 10, 2010 at 05:54 PM.
Reply
Old Oct 10, 2010 | 05:50 PM
  #26  
*02WS6TURK*'s Avatar
12 Second Club
iTrader: (13)
 
Joined: Apr 2010
Posts: 1,627
Likes: 1
From: Oregon Grown
Default

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.
Reply
Old Oct 10, 2010 | 06:21 PM
  #27  
02sslayer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Aug 2009
Posts: 651
Likes: 0
From: longview, wa
Default

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.
Reply
Old Oct 10, 2010 | 06:30 PM
  #28  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

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
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Oct 10, 2010 | 06:35 PM
  #29  
02sslayer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Aug 2009
Posts: 651
Likes: 0
From: longview, wa
Default

hey guys i appreciate the advice from both of you but please dont turn my thread into a huge battle. thanks
Reply
Old Oct 10, 2010 | 06:39 PM
  #30  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

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"
Reply
Old Oct 10, 2010 | 06:46 PM
  #31  
01SS99red's Avatar
TECH Apprentice
iTrader: (6)
 
Joined: Oct 2009
Posts: 308
Likes: 1
From: Chicago
Default

Agreed anything over 80% duty cycle on injectors you should upgrade. 36# injectors are more then enought for N/A.
Reply
Old Oct 10, 2010 | 07:15 PM
  #32  
mtuggle86's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2008
Posts: 548
Likes: 0
Default

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
Reply
Old Oct 10, 2010 | 07:23 PM
  #33  
mtuggle86's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2008
Posts: 548
Likes: 0
Default

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; Oct 10, 2010 at 07:30 PM.
Reply
Old Oct 10, 2010 | 07:45 PM
  #34  
mtuggle86's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2008
Posts: 548
Likes: 0
Default

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
Reply
Old Oct 11, 2010 | 12:04 AM
  #35  
903 TA's Avatar
Registered User
 
Joined: Oct 2010
Posts: 1
Likes: 0
Default

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
Reply
Old Oct 11, 2010 | 08:37 AM
  #36  
thunderstruck507's Avatar
11 Second Club
iTrader: (18)
 
Joined: Mar 2008
Posts: 8,358
Likes: 27
From: Northwest AR
Default

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
Reply
Old Oct 11, 2010 | 12:54 PM
  #37  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

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.
Reply
Old Oct 11, 2010 | 05:20 PM
  #38  
kmracer's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2006
Posts: 1,444
Likes: 0
From: Washington DC
Default

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.
Reply
Old Oct 11, 2010 | 05:38 PM
  #39  
kmracer's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2006
Posts: 1,444
Likes: 0
From: Washington DC
Default

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.
Reply
Old Oct 11, 2010 | 07:40 PM
  #40  
*02WS6TURK*'s Avatar
12 Second Club
iTrader: (13)
 
Joined: Apr 2010
Posts: 1,627
Likes: 1
From: Oregon Grown
Default

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.
Reply



All times are GMT -5. The time now is 10:51 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE