LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What is a good static compression ratio?

Thread Tools
 
Search this Thread
 
Old Sep 5, 2014 | 12:26 PM
  #21  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

He just needs to be added to the pink army is all. Then he will be mellow yellow.

And its nawwwws guys.
Reply
Old Sep 5, 2014 | 03:51 PM
  #22  
nitrous2fast's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Dec 2010
Posts: 1,084
Likes: 0
From: Oklahoma
Default

Originally Posted by waltsfastz
OK thanks, What about on pump gas, Is 12.5 ish:1 still a good figure, Or can it be pushed higher without detination?
You should just go with the CR you would if you were just going N/A. The reason I say that is the real problem when getting into larger shots is the PTW clearance and ring gap. The nitrous adds a LOT of heat and WILL make the piston and rings expand further. I tend to look at the use of the setup for determining the factors and solutions to nitrous related problems. Talking with your machinist about adding a .002 or more to the PTW is really your only concern with spraying over 300 shot(don't forget ring gap). But for street car use I would limit my shot amount to add longevity to the bores. Personally I don't like tearing down my motor every year or few years for that matter.
Reply
Old Sep 5, 2014 | 08:42 PM
  #23  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

One troll after another. Aw come on the real maniac finally shows up quoting me and any crony he can relate to. About a great profile: location - VA. Wow now thats some fancy credentials. Duh, he even labels himself a troll. Thats gotta be a great source of accurate information. Like any of them have any more credibility than me? Probably 3 of the trolls here are the same lunatic posting under different names. U can read in their posts they have nothing to help the OP with but rather obsessed with personal attacks against me.

Just beware, u get what u pay for here and a lot more sometimes.
Reply
Old Sep 6, 2014 | 10:05 AM
  #24  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Am I troll???
Reply
Old Sep 6, 2014 | 10:07 AM
  #25  
nitrous2fast's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Dec 2010
Posts: 1,084
Likes: 0
From: Oklahoma
Default

Originally Posted by Shownomercy
Am I troll???
The kind that eats children when they try to cross the bridge. lol
Reply
Old Sep 6, 2014 | 10:51 AM
  #26  
hrcslam's Avatar
TECH Addict
 
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Default

Originally Posted by Shownomercy
Am I troll???
Maybe he was talking about himself in the third person?? Not sure. Too vague.
Reply
Old Sep 6, 2014 | 11:05 AM
  #27  
HellTeeOne's Avatar
TECH Regular
 
Joined: Sep 2003
Posts: 442
Likes: 3
From: Raleigh, NC
Default

Originally Posted by cardo0
So what are u basing your 11.5 to 12.0 comp ratio on? U have any real data to support it?
Plenty of data, gathered from participating in multiple LT1 builds and observing scores more over the years dating back to the summer of 2000, when I first joined the CZ28 board. Like I said, just take a look around at some of the more successful LT builds, many of the guys who executed them will be happy to share their specs. If you've half a brain, you'll find out very quickly that they don't reflect any of the stuff you've posted.

What size NOx shot? Oh, oh, thats right any size shot unhuh. Are they all the same to u?? Admit it u dont know! What are the sources of your information. Joe, Smoe and someone on the sidewalk? What are the "other factors" in choosing a c.r. - thats what the OP wants.
Sorry I wasn't specific enough. The OP stated that his car will see street duty, so it's generally pretty safe to assume a "healthy shot" will be somewhere in the range of a 200-250 shot. Yes, you can run bigger than that on a street car, but it will shorten overhaul intervals to some degree and you will almost certainly be running race gas whenever you crack the bottle. Like anything else, you have to know your mission and your budget. As has been stated, the size of the shot has little to do with the SCR when compared to other far more important factors like ring gap, PTW, material of piston, etc. When putting a LT motor together that will see a "healthy shot" of N2o, I will target the SCR that I feel is best suited to N/A performance.

So lets hear it. Ya, nitrous vendors cant touch that kind of help. In your nearly empty profile i see a student. I can imagine how much time and $$$ a student has to spend proving NOx compression ratios. Plenty of time to troll the forums though. Get a real life.
You are unbelievably dense. I was a senior in college when I joined this board, more than a decade ago. That's no longer the case. My car has been through several iterations since 2001. I've helped friends put together at least 6 builds, 2 of them involving N2o, one forced induction and another that was both forced induction and N2o. All were successful builds. Some here including SS RRR might recognize my old username "Z97LT1" from CZ28 dating way back. Do you have any experience with LT motors beyond installing headers and a catback?
Reply
Old Sep 7, 2014 | 12:15 AM
  #28  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

"Participating in multiple LT1 builds and observing score more" sounds like a forum troll wannabe bragging 'bout engines he posted in others threads on but never touched. The same kinda self proclaimed genius that makes up his own steam vent science because he has to justify his stupid mistakes. Thinks he can build a better fifth gen Z28 for half the price while he cant even fix his own tune. Yes a genius in your own mind(s).

"Sorry I wasn't specific enough." like u are displaying manners along with your personal attacks? U have no data, no recorded results, no legitimate information sources - but u can accuse someone of being "dense". Just your own fabrications again and again. See a psychologist. Anyone reading your blabber still has nothing factual to use for NOx builds.

Do i have any experience fabricating technical advice and smearing legitimate professional sources?? No. But i can read that while u try to do it u are terrible at that too.

It didnt take me 10 years to update my profile. U would have to be dense and lazy to do that and expect credibility. Your a genius in your mind(s) only. Your profile has no friends - none in over 10 years. Get help. Your as flaky as they get.

Last edited by cardo0; Sep 7, 2014 at 12:25 AM. Reason: spelling
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Sep 7, 2014 | 12:22 AM
  #29  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

Am I troll???


Well hey, is someone feeling guilty now???
Reply
Old Sep 7, 2014 | 01:33 AM
  #30  
hrcslam's Avatar
TECH Addict
 
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Default

Originally Posted by cardo0
The same kinda self proclaimed genius that makes up his own steam vent science because he has to justify his stupid mistakes. Thinks he can build a better fifth gen Z28 for half the price while he cant even fix his own tune. Yes a genius in your own mind(s).
Wow, o.k. And you're the one calling people trolls. Mirror, meet Cardo0.

You sir have just enough knowledge to have no idea that you don't know what you're talking about. You can't even figure out the physics of fluid dynamics. There's a reason the law suit surrounding the whole tiny vent steam line never came to fruition. It wasn't needed. Have you even bothered to check your stock steam line to make sure only steam goes through it? I'm waiting.

This is coming from the guy that thought the steam line was vented to the overflow reservoir.

That really hit you hard didn't it? You're that guy in the hangar I make get me tools from the tool room and open and tag panels, but you've been there for over a decade and is "certificated".

Tune? Where exactly did you get I couldn't do my own tune? Last I checked I did everything in my tune minus the dyno required WOT (which I had to walk the Dyno tuner through due to the PCM limitations, but I'm sure you are aware of those; no emulating sucks and tuning on Tuner Pro RT with over 100% VE is tricky). But, you must have a dyno in your back yard. My bad. Can you even read a datalog? You seem to be quite absent from those threads. Yet, you criticize my willingness to do my own and learn in the process. BTW, 414rwhp with the Mustang Dyno reading 300-400 rpms LOWER than actual and SAE corrected. How's your tune coming?

You can't even comprehend basic comments I've made (on another forum of all places; troll much?). I said "I could build ANY F-body to beat the new Z/28 for less than it would cost to buy one." Just because you can't doesn't mean I cannot. Notice I said F-Body? Last I checked the 5th Gen is a Zeta. Ohh there's that ignorance again.





Cardo0, there's a reason everyone busts your ***** in every thread you seem to pop up in; and even some you don't. It's because you're the ignorant, yet surprisingly opinionated, troll.....

Last edited by hrcslam; Sep 7, 2014 at 02:13 AM.
Reply
Old Sep 7, 2014 | 08:54 AM
  #31  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Originally Posted by cardo0
Am I troll???


Well hey, is someone feeling guilty now???
Not really, I troll the **** out of tech, its a cesspool of silliness.

But, I also have a 3600lb sled that goes 140mph, what you got son?
Reply
Old Sep 7, 2014 | 09:27 PM
  #32  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 596
From: Jackstandican
Default

Originally Posted by Shownomercy
But, I also have a 3600lb sled that goes 140mph, what you got son?
You also have a pink screen name so there's always that.
Reply
Old Sep 8, 2014 | 07:12 AM
  #33  
bufmatmuslepants's Avatar
12 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Mar 2007
Posts: 3,280
Likes: 49
From: Hampstead, NC
Default

Back to the topic, 26cc dished pistons will make it hard for you to get 11-12:1 with 0.03-0.04 quench and a normal cc chamber. That's a good piston for a FI motor, I'd pass for nitrous or NA, and target 11.5-12:1 and 0.035 quench.
Reply
Old Sep 8, 2014 | 10:10 AM
  #34  
HellTeeOne's Avatar
TECH Regular
 
Joined: Sep 2003
Posts: 442
Likes: 3
From: Raleigh, NC
Default

Originally Posted by cardo0
"Participating in multiple LT1 builds and observing score more" sounds like a forum troll wannabe bragging 'bout engines he posted in others threads on but never touched. The same kinda self proclaimed genius that makes up his own steam vent science because he has to justify his stupid mistakes. Thinks he can build a better fifth gen Z28 for half the price while he cant even fix his own tune. Yes a genius in your own mind(s).

"Sorry I wasn't specific enough." like u are displaying manners along with your personal attacks? U have no data, no recorded results, no legitimate information sources - but u can accuse someone of being "dense". Just your own fabrications again and again. See a psychologist. Anyone reading your blabber still has nothing factual to use for NOx builds.

Do i have any experience fabricating technical advice and smearing legitimate professional sources?? No. But i can read that while u try to do it u are terrible at that too.

It didnt take me 10 years to update my profile. U would have to be dense and lazy to do that and expect credibility. Your a genius in your mind(s) only. Your profile has no friends - none in over 10 years. Get help. Your as flaky as they get.
Never claimed to be a genius. One does not have to be one to execute a successful LTx N2o build. All you have to be is not stupid. The data and the formulas/recipes for doing so are all known quantities at this point.
I don't have to prove anything to you. I already told you to look around at some of the more successful LTx N2o builds on here and anywhere else you want and see what proof they have to offer. That will get you much further than insisting that extremely vague advice intended for absolute neophytes on some nitrous company's website is gospel.

How about going and checking out some of the extant and well known details on taner's car? It sees plenty of street duty, makes nice power N/A and runs what any person I know would call a "healthy" shot. You want to take a guess or make a bet on what range his SCR might fall in?

Oh, and I'm so sorry for not updating my profile page. I'm not in the habit of typing up a fancy profile page in some sort of attempt to enhance my credibility.
Reply
Old Sep 8, 2014 | 01:24 PM
  #35  
waltsfastz's Avatar
Thread Starter
11 Second Club
iTrader: (4)
 
Joined: Jan 2005
Posts: 1,004
Likes: 0
From: Rowletts,KY
Default

Originally Posted by bufmatmuslepants
Back to the topic, 26cc dished pistons will make it hard for you to get 11-12:1 with 0.03-0.04 quench and a normal cc chamber. That's a good piston for a FI motor, I'd pass for nitrous or NA, and target 11.5-12:1 and 0.035 quench.
YEah, I've already passed on the dished pistions and going with a flat top.
Reply
Old Sep 8, 2014 | 01:40 PM
  #36  
hrcslam's Avatar
TECH Addict
 
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Default

Originally Posted by bufmatmuslepants
Back to the topic, 26cc dished pistons will make it hard for you to get 11-12:1 with 0.03-0.04 quench and a normal cc chamber. That's a good piston for a FI motor, I'd pass for nitrous or NA, and target 11.5-12:1 and 0.035 quench.
X2 on all points.
Reply
Old Sep 10, 2014 | 06:46 AM
  #37  
cardo0's Avatar
Banned
 
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
Default

Not really, I troll the **** out of tech, its a cesspool of silliness.

But, I also have a 3600lb sled that goes 140mph, what you got son?

Why do i always feel like its a job interview just to post here??? I got a 250K mi junker Z28 that runs in 15's but is driven daily. How much of my time and $$$ went into trying to pass CA smog i try and forget. Cut up my beautiful $700 mufflex 4" exh trying to get my backpress up enough for good egr operation. How many good parts could have gone in my car instead of CA smog testing? Well at least alot more than i have now. But if u want to compare cars then do u still run cats on yours? I doubt it. Pass CA smog - not a chance. How much is your car worth?? Maybe more than mine but
not much more. So what u got to show for all your time and effort? How come u have to keep reminding me how fast your car is? Maybe my lack of concern should tell u something.


So now I got little hypocrites following me thread to thread telling me i need to listen to their hearsay advice and that the legitimate NOx vendors dont know as much as they do - what truck load of hypocrisy crap. They post poop load after poop load of worthless info. They even drift off blabbering about hangers and toolies there. Well hey i can imagine how the FAA would react to his self fabricated science when he trashes a plane (or more) because he cant follow the book. I can also imagine what gets into his coffee cup for sweetener treating a co-worker like that. Same guy that gets his bees busted all the time tells me why the trolls attack me. Well hes so ignorant he dont even realize that they do it to him too - or wont admit it.
The truth is the regular trolls here are so butt hurt by the truth they have to follow me thread to thread in respite. That and there's next to no moderators here monitoring them.
Reply
Old Sep 10, 2014 | 07:25 AM
  #38  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Because it is a interview in a way. Just cause you can copy and paste from various vendor websites does not mean you have a shred of experience in what you are pushing as the truth. So people actually having done the things that you try to talk about like you have will call you out on it time and time again. You made a car pass Cali inspection? Congrats, I would say that is tough, but in the scheme of things, this is a modified car forum and no one really cares. My car makes over 700whp and is daily driven, and with a valid inspection sticker. I am not going to comment on how much my car is worth compared to yours cause its all what the car is worth personally to you that matters.

Speaking of the FAA though, funny thing I have close to four things approved by the FAA for flight. I can assure you they are not as serious as you think they are.

Regardless of all this, people will always call you out cause as you just stated you have experience in EGR and stock emissions stuff. Giving advice on N20 and what not is a little out of your experience and by that nature you really should not be arguing with people who have done things only fueled with what you have read somewhere.

Anywho, this will all go over you so meh.
Reply
Old Sep 10, 2014 | 07:38 AM
  #39  
nitrous2fast's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Dec 2010
Posts: 1,084
Likes: 0
From: Oklahoma
Default

Originally Posted by cardo0
Not really, I troll the **** out of tech, its a cesspool of silliness.

But, I also have a 3600lb sled that goes 140mph, what you got son?

Why do i always feel like its a job interview just to post here??? I got a 250K mi junker Z28 that runs in 15's but is driven daily. How much of my time and $$$ went into trying to pass CA smog i try and forget. Cut up my beautiful $700 mufflex 4" exh trying to get my backpress up enough for good egr operation. How many good parts could have gone in my car instead of CA smog testing? Well at least alot more than i have now. But if u want to compare cars then do u still run cats on yours? I doubt it. Pass CA smog - not a chance. How much is your car worth?? Maybe more than mine but
not much more. So what u got to show for all your time and effort? How come u have to keep reminding me how fast your car is? Maybe my lack of concern should tell u something.


So now I got little hypocrites following me thread to thread telling me i need to listen to their hearsay advice and that the legitimate NOx vendors dont know as much as they do - what truck load of hypocrisy crap. They post poop load after poop load of worthless info. They even drift off blabbering about hangers and toolies there. Well hey i can imagine how the FAA would react to his self fabricated science when he trashes a plane (or more) because he cant follow the book. I can also imagine what gets into his coffee cup for sweetener treating a co-worker like that. Same guy that gets his bees busted all the time tells me why the trolls attack me. Well hes so ignorant he dont even realize that they do it to him too - or wont admit it.
The truth is the regular trolls here are so butt hurt by the truth they have to follow me thread to thread in respite. That and there's next to no moderators here monitoring them.
Wait hold up a minute! Did you just state that your car is modified to run 15's AND pass cali smog. Holy crap batman you know WTF you are doing... my bad OP you should listen to this guy instead.
Reply
Old Sep 10, 2014 | 12:15 PM
  #40  
hrcslam's Avatar
TECH Addict
 
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Default

Originally Posted by nitrous2fast
Wait hold up a minute! Did you just state that your car is modified to run 15's AND pass cali smog. Holy crap batman you know WTF you are doing... my bad OP you should listen to this guy instead.
Yup, that 4" exhaust is certainly making an impact......
Reply



All times are GMT -5. The time now is 10:31 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE