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im just about to do 1 3/4 headers, x pipe no cats back to my npp catback. im also doing a k&n CAI at the same time. When i do those two things will it run too lean and be potentially damaging to the engine? i plan on getting it tuned a few days after but if it does run lean i will just drive it easy home then straight to the tuner when i get time.
Also, what kind of rwhp do i make roughly stock and what should i expect after bolt ons and dyno tune? Thanks!
Matt
im just about to do 1 3/4 headers, x pipe no cats back to my npp catback. im also doing a k&n CAI at the same time. When i do those two things will it run too lean and be potentially damaging to the engine? i plan on getting it tuned a few days after but if it does run lean i will just drive it easy home then straight to the tuner when i get time.
Also, what kind of rwhp do i make roughly stock and what should i expect after bolt ons and dyno tune? Thanks!
Matt
It should be ok for a few days... If anything I think Ive seen on here that they tend to run a little rich? Never hurts to be too safe either!
Id say somewhere around 410-420. I had a Vararam, 1 7/8" headers, catless x-pipe, Z06 mufflers, and tune... Made 417rwhp/409tq.
You may make a tiny bit more TQ with the 1 3/4" headers, and a tiny bit less HP
It should be ok for a few days... If anything I think Ive seen on here that they tend to run a little rich? Never hurts to be too safe either!
Id say somewhere around 410-420. I had a Vararam, 1 7/8" headers, catless x-pipe, Z06 mufflers, and tune... Made 417rwhp/409tq.
You may make a tiny bit more TQ with the 1 3/4" headers, and a tiny bit less HP
cool i appreciate it! i will get it tuned as soon as possible after and i will post my dyno numbers! i just wanted to make sure the car would be safe without a tune for a short period
From the factory they run pig rich. The car will run leaner with the K&N and headers but you will still be way safe. The tune will be a huge help I wouldnt be shocked if you exceeded the above expectations
Good Luck
Dennis
From the factory they run pig rich. The car will run leaner with the K&N and headers but you will still be way safe. The tune will be a huge help I wouldnt be shocked if you exceeded the above expectations
Good Luck
Dennis
i appreciate it! im glad to know i dont have to worry too bad while it runs untuned for a short time. im excited to see what numbers it puts down! hopefully i will feel a difference on the butt dyno as well
i appreciate it! im glad to know i dont have to worry too bad while it runs untuned for a short time. im excited to see what numbers it puts down! hopefully i will feel a difference on the butt dyno as well
Ohh you'll definitely feel it after the tune, I know I felt a huge difference!
Let us know your results!
If you're looking for more than just dyno HP, then pick a real CAI, not simply a different filter and housing. The "C" in CAI means cold, which can only happen by drawing air from outside the engine compartment.
If you're only interested in a cool dyno sheet, there's an app for that.
If you're looking for more than just dyno HP, then pick a real CAI, not simply a different filter and housing. The "C" in CAI means cold, which can only happen by drawing air from outside the engine compartment.
If you're only interested in a cool dyno sheet, there's an app for that.
with that! Vararam or a Halltech will give you real world "forced" cold air induction!!
If you're looking for more than just dyno HP, then pick a real CAI, not simply a different filter and housing. The "C" in CAI means cold, which can only happen by drawing air from outside the engine compartment.
If you're only interested in a cool dyno sheet, there's an app for that.
damn...you dont have to be quite so harsh. i dont care what it makes for whp really i was just curious. I race part time in the nascar nationwide series and last year i raced in the K&N Pro Series East and K&N sponsored me so they are sending me their intake for my car for free. it was somewhat hard to pass that up i would hope you can understand that.
damn...you dont have to be quite so harsh. i dont care what it makes for whp really i was just curious. I race part time in the nascar nationwide series and last year i raced in the K&N Pro Series East and K&N sponsored me so they are sending me their intake for my car for free. it was somewhat hard to pass that up i would hope you can understand that.
hahaha i know i couldnt believe it! i emailed the guy i know at K&N asking if i could get a decent deal on a CAI and he is just sending me one for free lol i couldn't complain about that!
When i do those two things will it run too lean and be potentially damaging to the engine? i plan on getting it tuned a few days after but if it does run lean i will just drive it easy home then straight to the tuner when i get time.
You shouldn't damage anything at all but your air/fuel will likely be off by a bit, so I wouldn't drive it hard/go wide open throttle at all until after the dyno tuning is done.
Some disagree with that, they say to just drive it however ya want even without tuning, but I wouldn't.
damn...you dont have to be quite so harsh. i dont care what it makes for whp really i was just curious. I race part time in the nascar nationwide series and last year i raced in the K&N Pro Series East and K&N sponsored me so they are sending me their intake for my car for free. it was somewhat hard to pass that up i would hope you can understand that.
Well, you're kinda new here and your profile says nothing about you or your car. When you mention posting up dyno results and are excited to know the numbers, it sure sounded like more than being "just curious".
Anyone who's been here a while, especially the racers, know what products fit the definition of CAI and which don't. If noobies post looking for more HP we try to educate them. Some are just looking for a dyno sheet for bragging rights at the car show and some just need guidance.
I can certainly understand not wanting to pass up free stuff from anyone, but don't understand how K&N sponsored you before, yet didn't provide their highest profile product until you requested it.
I've had both Valvoline and Quaker State offer me a case of oil every month and whatever other oil product I needed, in exchange for simply putting their decal on my car for a full racing season. I'd like to know what kind of arrangment K&N offers and what was your requirement.
If your car runs lean it will set a light with that code, you will most likely set a rear O2 sensor code light anyway before your tune however your computer can richen or lean the oem tune by as much as 25% before setting a code. So some on here have driven their cars for months after installing headers and a cai going full throttle from time to time with no problems. Some say beside the rear O2 caused light their car ran quite well. Then they got a tune and did not pick up much at all from the tune because they had it dyno before and than after the tune.
So I would do a before tune and then after tune dyno to see what the tune itself was really worth in hp.
PS: Who knows you maybe in for a surprise one way or the other but at least you will know what the tune was really worth.
Last edited by C7/Z06 Man; Jun 5, 2012 at 12:15 AM.
Well, you're kinda new here and your profile says nothing about you or your car. When you mention posting up dyno results and are excited to know the numbers, it sure sounded like more than being "just curious".
Anyone who's been here a while, especially the racers, know what products fit the definition of CAI and which don't. If noobies post looking for more HP we try to educate them. Some are just looking for a dyno sheet for bragging rights at the car show and some just need guidance.
I can certainly understand not wanting to pass up free stuff from anyone, but don't understand how K&N sponsored you before, yet didn't provide their highest profile product until you requested it.
I've had both Valvoline and Quaker State offer me a case of oil every month and whatever other oil product I needed, in exchange for simply putting their decal on my car for a full racing season. I'd like to know what kind of arrangment K&N offers and what was your requirement.
i have been around cars my whole life you dont have to be so rude about it. i have been on different forums about different cars. The forums are for helpful FRIENDLY advice. if you are going to bash people and be a dick about it then just dont comment. I just bought my car 2 weeks ago so i just contacted K&N because they said if i ever need anything to let them know. I was curious what numbers i should roughly expect on the dyno because im curious what kind of difference i should expect on the butt dyno. excuse me for being curious. and by the way i have only been around racecars my entire life and engines. and after the comment you said about K&N being terrible i was curious so i called LG and he said they have used the K&N CAI on customers cars and it was as good as any. he said "dont listen to that hater." and those are his words not mine so dont take that the wrong way. If you are curious who i am you are more than free to look me up on google. So please...the next mod you do to your car: make it the driver attitude adjustment mod and do us all a favor. Again...this is for FRIENDLY advice and help. im no noob when it comes to cars. its my brand new vette so im being a little cautious and asking all questions i can and most people have been extremely helpful.
Matt DiBenedetto
Last edited by mattdracing; Jun 5, 2012 at 08:29 AM.
If your car runs lean it will set a light with that code, you will most likely set a rear O2 sensor code light anyway before your tune however your computer can richen or lean the oem tune by as much as 25% before setting a code. So some on here have driven their cars for months after installing headers and a cai going full throttle from time to time with no problems. Some say beside the rear O2 caused light their car ran quite well. Then they got a tune and did not pick up much at all from the tune because they had it dyno before and than after the tune.
So I would do a before tune and then after tune dyno to see what the tune itself was really worth in hp.
PS: Who knows you maybe in for a surprise one way or the other but at least you will know what the tune was really worth.
I appreciate it! yea i just plan on doing the 2 mods and driving it easily to get it tuned. no WOT pulls for me until its tuned. always better to be safe IMO. I appreciate everyone's help!
Well, you're kinda new here and your profile says nothing about you or your car. When you mention posting up dyno results and are excited to know the numbers, it sure sounded like more than being "just curious".
Anyone who's been here a while, especially the racers, know what products fit the definition of CAI and which don't. If noobies post looking for more HP we try to educate them. Some are just looking for a dyno sheet for bragging rights at the car show and some just need guidance.
I can certainly understand not wanting to pass up free stuff from anyone, but don't understand how K&N sponsored you before, yet didn't provide their highest profile product until you requested it.
I've had both Valvoline and Quaker State offer me a case of oil every month and whatever other oil product I needed, in exchange for simply putting their decal on my car for a full racing season. I'd like to know what kind of arrangment K&N offers and what was your requirement.
i updated my garage for you since i just got my car 2 weeks ago and didnt think about it until you said something
i have been around cars my whole life you dont have to be so rude about it. i have been on different forums about different cars. The forums are for helpful FRIENDLY advice. if you are going to bash people and be a dick about it then just dont comment. I just bought my car 2 weeks ago so i just contacted K&N because they said if i ever need anything to let them know. I was curious what numbers i should roughly expect on the dyno because im curious what kind of difference i should expect on the butt dyno. excuse me for being curious. and by the way i have only been around racecars my entire life and engines. and after the comment you said about K&N being terrible i was curious so i called LG and he said they have used the K&N CAI on customers cars and it was as good as any. he said "dont listen to that hater." and those are his words not mine so dont take that the wrong way. If you are curious who i am you are more than free to look me up on google. So please...the next mod you do to your car: make it the driver attitude adjustment mod and do us all a favor. Again...this is for FRIENDLY advice and help. im no noob when it comes to cars. its my brand new vette so im being a little cautious and asking all questions i can and most people have been extremely helpful.
Matt DiBenedetto
So when you read stuff the wrong way, you can get your feathers ruffled pretty easily.
I said you are a noobie HERE. You immediately chose to interpret that as rude and offensive to your ego.
I never said K&N was "terrible" either, but simply infered it wasn't a real CAI. I'm sure that Bobby (at LG) would agree. Again, a mis-interpretation on your part.
You've had your car two weeks and most of us here who try to help the noobies (and you're still a noobie to this forum and your Corvette) have been here for several years. Most of us have been around cars a long time. We pretty much know our way around race engines too, even some with experience back into the 1950's.
Try re-reading posts with an open mind that people ARE being helpful, before responding in harsh and demanding terms. When you go to new places, it is you who sets the tone for first impressions. You need to earn respect. It isn't handed to you.
BTW, calling someone a noobie doesn't imply stupidity. It's more often the greeting label used to offer or request help.
I appreciate it! yea i just plan on doing the 2 mods and driving it easily to get it tuned. no WOT pulls for me until its tuned. always better to be safe IMO. I appreciate everyone's help!
Matt, how about a before and after mods visit to the drag strip to see what they were worth? Some on here say that's the real proof in the pudding. I know that I would want to see what improvement I got for my money.
Edit: By chance do you aready have a before track visit?
Last edited by C7/Z06 Man; Jun 5, 2012 at 07:09 PM.
So when you read stuff the wrong way, you can get your feathers ruffled pretty easily.
I said you are a noobie HERE. You immediately chose to interpret that as rude and offensive to your ego.
I never said K&N was "terrible" either, but simply infered it wasn't a real CAI. I'm sure that Bobby (at LG) would agree. Again, a mis-interpretation on your part.
You've had your car two weeks and most of us here who try to help the noobies (and you're still a noobie to this forum and your Corvette) have been here for several years. Most of us have been around cars a long time. We pretty much know our way around race engines too, even some with experience back into the 1950's.
Try re-reading posts with an open mind that people ARE being helpful, before responding in harsh and demanding terms. When you go to new places, it is you who sets the tone for first impressions. You need to earn respect. It isn't handed to you.
BTW, calling someone a noobie doesn't imply stupidity. It's more often the greeting label used to offer or request help.
i may have taken you wrong and i apologize. i guess i was in a bad mood maybe??? idk how though because i have a nice new car sorry about that i completely took it the wrong way. the comment "if you're looking for dyno numbers, there's an app for that" irritated me slightly but its all good. i dont wanna blow up this thread with stuff other than technical advice. sorry again