[Z06] opinion on new mod
Thread Starter
Safety Car
Joined: Dec 2006
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From: NC
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opinion on new mod
I am thinking of changing from Vortex CAI to Honker. My mods now are Vortex, shorty headers, Corsa Indys and x pipe, and dyno tune. My question is do you think I will need to retune? The car is 03 Z. 381 rwhp at present. All opinions welcome. Thanks.
Burning Brakes
Joined: Mar 2007
Posts: 1,158
Likes: 1
From: St. Peters MO
What kind of dyno are you getting those #'s from?
If it's on a dynojet then I would say you may want to get it retuned.....by someone else.
I'm at 375rwhp and all I have is a vara-ram, borla cat back, and tune.
I realize that shorties may not give the same gains as long tubes, but I got to believe you're tunner is leaving about 20rwhp on the table and not your right foot where it belongs..........just my opinion.
As far as will you "NEED" to retune......probably not, unless you start experiencing some surging at idle speeds.
If it's on a dynojet then I would say you may want to get it retuned.....by someone else.
I'm at 375rwhp and all I have is a vara-ram, borla cat back, and tune.
I realize that shorties may not give the same gains as long tubes, but I got to believe you're tunner is leaving about 20rwhp on the table and not your right foot where it belongs..........just my opinion.
As far as will you "NEED" to retune......probably not, unless you start experiencing some surging at idle speeds.
Thread Starter
Safety Car
Joined: Dec 2006
Posts: 3,937
Likes: 1,925
From: NC
2025 Corvette of the Year Finalist - Unmodified
2024 C7 of the Year Winner - Unmodified
2023 C7 of the Year Finalist - Unmodified
2019 C6 of Year Finalist (performance mods)
What kind of dyno are you getting those #'s from?
If it's on a dynojet then I would say you may want to get it retuned.....by someone else.
I'm at 375rwhp and all I have is a vara-ram, borla cat back, and tune.
I realize that shorties may not give the same gains as long tubes, but I got to believe you're tunner is leaving about 20rwhp on the table and not your right foot where it belongs..........just my opinion.
As far as will you "NEED" to retune......probably not, unless you start experiencing some surging at idle speeds.
If it's on a dynojet then I would say you may want to get it retuned.....by someone else.
I'm at 375rwhp and all I have is a vara-ram, borla cat back, and tune.
I realize that shorties may not give the same gains as long tubes, but I got to believe you're tunner is leaving about 20rwhp on the table and not your right foot where it belongs..........just my opinion.
As far as will you "NEED" to retune......probably not, unless you start experiencing some surging at idle speeds.
Burning Brakes
Joined: Mar 2007
Posts: 1,158
Likes: 1
From: St. Peters MO
Thread Starter
Safety Car
Joined: Dec 2006
Posts: 3,937
Likes: 1,925
From: NC
2025 Corvette of the Year Finalist - Unmodified
2024 C7 of the Year Winner - Unmodified
2023 C7 of the Year Finalist - Unmodified
2019 C6 of Year Finalist (performance mods)
I see what you are saying and don't take offense but I disagree. Most of these cars dyno 350-360 stock. Catback doesn't gain much if any so I have 20-30 hp in shorty headers,CAI, and tune. I think realistically you are looking roughly 10 in each of the three. Any way I think I would be better off with the long tubes and a retune. My torque numbers should at least increase and I would expect to get in the 390 range in HP. I just hate to spend the big dollars on LT. Thanks for your replies.
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
I see what you are saying and don't take offense but I disagree. Most of these cars dyno 350-360 stock. Catback doesn't gain much if any so I have 20-30 hp in shorty headers,CAI, and tune. I think realistically you are looking roughly 10 in each of the three. Any way I think I would be better off with the long tubes and a retune. My torque numbers should at least increase and I would expect to get in the 390 range in HP. I just hate to spend the big dollars on LT. Thanks for your replies.
On your original question. I wouldn't change intake systems, you might have a couple HP to gain there but you'd be better off focusing your $ and attention elswhere b/c you already have a decent CAI.
Last edited by ctusser; Feb 11, 2008 at 09:09 PM. Reason: comment on original question.
Thread Starter
Safety Car
Joined: Dec 2006
Posts: 3,937
Likes: 1,925
From: NC
2025 Corvette of the Year Finalist - Unmodified
2024 C7 of the Year Winner - Unmodified
2023 C7 of the Year Finalist - Unmodified
2019 C6 of Year Finalist (performance mods)
I think I will save the bucks for LT headers and keep what I have. Thanks for your replies. 
