Headers NEED tune?
Thread Starter
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
Headers NEED tune?
I got LTs put on my car about a month ago. I have not tuned the cars since although I got a SLIGHT tune according to JF when porting my TB/Intake before the headers.
Also besides the intoxicating soud at WOT I didnt feel a big difference(like 20-30ish HP should)
Am I missing out on a LOT of horsepower and better drivability due to not having it tuned after my mods????
06 A6
Bullets
LG Pros w/cats
Ported TB/Intake
MSD wires
NGK TR55 plugs
ATI harmonic balancer comming soon.
Any comment would be greatly apreciated
Rod
Also besides the intoxicating soud at WOT I didnt feel a big difference(like 20-30ish HP should)
Am I missing out on a LOT of horsepower and better drivability due to not having it tuned after my mods????
06 A6
Bullets
LG Pros w/cats
Ported TB/Intake
MSD wires
NGK TR55 plugs
ATI harmonic balancer comming soon.
Any comment would be greatly apreciated
Rod
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
do you NEED a tune? no.. for years people have done bolt ons and even heads/cams on f and y bodies with out any ecu tuning.
Is a tune optimal? sure.. you can pick up decent power from a tune but if you dont tune it the car will still run.. you can still drive it.
Is a tune optimal? sure.. you can pick up decent power from a tune but if you dont tune it the car will still run.. you can still drive it.
Thread Starter
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
Thanks Lightning.
I guess what Im really asking is if Im missing out on a lot of HP and better drivability cause I didnt feel a big difference after adding the most powerful header on the planet.
I guess what Im really asking is if Im missing out on a lot of HP and better drivability cause I didnt feel a big difference after adding the most powerful header on the planet.
Racer
Joined: Apr 2006
Posts: 364
Likes: 0
From: Setauket New York
I have pretty much the same mods as you minus the wires and sparkplugs, and I gained an extra 20WHP just from the tune. It will make a noticable difference in power with the proper tune.
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
imo with anything that is a major change of air in and out it would be better to get a tune. That way you can really optimize the fuel usage and or adjust timing as needed.
i have seen some ppl gain 20 rwhp from and tune and some gain 2... really depends how your car was running with the stock tune. With tunes going for $400-500 if you dont mind spend the money go for it, but realise you could gain 5 rwhp. or you could gain 20 rwhp.
i have seen some ppl gain 20 rwhp from and tune and some gain 2... really depends how your car was running with the stock tune. With tunes going for $400-500 if you dont mind spend the money go for it, but realise you could gain 5 rwhp. or you could gain 20 rwhp.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
I got LTs put on my car about a month ago. I have not tuned the cars since although I got a SLIGHT tune according to JF when porting my TB/Intake before the headers.
Also besides the intoxicating soud at WOT I didnt feel a big difference(like 20-30ish HP should)
Am I missing out on a LOT of horsepower and better drivability due to not having it tuned after my mods????
06 A6
Bullets
LG Pros w/cats
Ported TB/Intake
MSD wires
NGK TR55 plugs
ATI harmonic balancer comming soon.
Any comment would be greatly apreciated
Rod
Also besides the intoxicating soud at WOT I didnt feel a big difference(like 20-30ish HP should)
Am I missing out on a LOT of horsepower and better drivability due to not having it tuned after my mods????
06 A6
Bullets
LG Pros w/cats
Ported TB/Intake
MSD wires
NGK TR55 plugs
ATI harmonic balancer comming soon.
Any comment would be greatly apreciated
Rod
Racer
Joined: Apr 2006
Posts: 364
Likes: 0
From: Setauket New York
A basic tune will usually give 5-10 hp with a few bolt ons. Since you are already tuned it will probably give you nothing. Your headers are worth 25 hp, a new tune will still only yield 25 total hp and the SOTP difference is small for that amount of hp. If you don't mind spending several hundred dollars, it won't hurt anything.
Thread Starter
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
The tune I had was jsut a sample done while adjusting the cpu for the porting. The tunner stated that he barely did anything to it.. just a sample. I was spinning the RFs on the 1st to 2nd shift!
25hp shouldnt feel any different? If I understand how this goes, 25 on a dyno = more to the motor. I might be crazy
but I noticed a difference when I added the Bullets.
Maybe every add on will go yielding less and less SOTP difference.
Maybe time for gears?
25hp shouldnt feel any different? If I understand how this goes, 25 on a dyno = more to the motor. I might be crazy
but I noticed a difference when I added the Bullets.Maybe every add on will go yielding less and less SOTP difference.
Maybe time for gears?
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Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
This is not always true, or at least it wasnt for me. I was in the same situation as the OP. At first I had a catback, K&N intake, ported Intake Manifold and TB by Jeremy Formato with a minor street tune. I then added headers and went back to Jeremy for a full dyno tune and gained an additional 20whp once the tune was complete. I understand this is not the norm, but you never know.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
The tune I had was jsut a sample done while adjusting the cpu for the porting. The tunner stated that he barely did anything to it.. just a sample. I was spinning the RFs on the 1st to 2nd shift!
25hp shouldnt feel any different? If I understand how this goes, 25 on a dyno = more to the motor. I might be crazy but I noticed a difference when I added the Bullets.
Maybe every add on will go yielding less and less SOTP difference.
Maybe time for gears?
25hp shouldnt feel any different? If I understand how this goes, 25 on a dyno = more to the motor. I might be crazy
but I noticed a difference when I added the Bullets.Maybe every add on will go yielding less and less SOTP difference.
Maybe time for gears?
Thread Starter
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
Thank you Bob,
Not being smart, just trying to get to the info desired.
I know that HP doesnt tell the whole story though Tq management and tranny all may make the car FEEL and shift faster.
Also peek HP doesnt mean that there wasn't gains under the curve as well.
Im not a pro, just speaking on what I understand to be the possibilities.
Not being smart, just trying to get to the info desired.
I know that HP doesnt tell the whole story though Tq management and tranny all may make the car FEEL and shift faster.
Also peek HP doesnt mean that there wasn't gains under the curve as well.
Im not a pro, just speaking on what I understand to be the possibilities.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Thank you Bob,
Not being smart, just trying to get to the info desired.
I know that HP doesnt tell the whole story though Tq management and tranny all may make the car FEEL and shift faster.
Also peek HP doesnt mean that there wasn't gains under the curve as well.
Im not a pro, just speaking on what I understand to be the possibilities.
Not being smart, just trying to get to the info desired.
I know that HP doesnt tell the whole story though Tq management and tranny all may make the car FEEL and shift faster.
Also peek HP doesnt mean that there wasn't gains under the curve as well.
Im not a pro, just speaking on what I understand to be the possibilities.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
SGT ROD: I have not figured out how to post my dyno sheet, however if you look at TonyB4 's dyno, mine is almost an exact replica. I overlayed my sheet on top of his and was amazed how close they are. He has a few more hp and tq than I, but the lines just follow each other all the way up. Noticed your coment on the Bullets. Aftermarket exaust will add about 10 hp, and my gut feeling is because they were so much louded you got a better sense of the engines power. Bet it sounds great.
Last edited by BOB EAGAN; Jun 17, 2009 at 02:46 PM.
Thread Starter
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
I have my stock intake and TB ported and I like that mod. If I had known how much I was gonna like it I would have gone with a ported Fast from the begining. If I do now Im throwing away the cash I spent on that unless someone on the forum wants it.
The bullets did make it louder but nothing compared to what the headers did.
Spinnig at 80mph?..wow, thats fun. Especialy since vettes are so easy to control. I dont have H/C on my car but the Invos and nt05s hook up great ! I have the Invos and it helped lots! I haven't taken it to the track since adding them or the headers but its deffinitly noticable
The bullets did make it louder but nothing compared to what the headers did.
Spinnig at 80mph?..wow, thats fun. Especialy since vettes are so easy to control. I dont have H/C on my car but the Invos and nt05s hook up great ! I have the Invos and it helped lots! I haven't taken it to the track since adding them or the headers but its deffinitly noticable
Last edited by SgtRod; Jun 19, 2009 at 02:24 PM.
