just dynoed, what mod next?
Thread Starter
Pro
Joined: Oct 2001
Posts: 507
Likes: 0
From: Chatsworth CA
just dynoed, what mod next?
I just had my 2002 Coupe dynoed again on Saturday - this time with a cut lid and a K&N panel filter and made the numbers in my sig. My previous were 313.4 rwhp & 333 rwtq stock @ 2,400 miles.
Because of work on the house and my project car, I don't have much of a budget for modding the vette. But if things like an air bridge or cat-back will make much of a difference then I'd consider it. Does anyone have before & after dyno graphs from those mods? Also, would removing the screen on my MAF be a good idea?
Thanks in advance.
BTW, if anyone is interested in seeing a before & after for the cut lid and K&N filter on my car, here it is:
[Modified by bdavies, 12:47 PM 4/22/2002]
Because of work on the house and my project car, I don't have much of a budget for modding the vette. But if things like an air bridge or cat-back will make much of a difference then I'd consider it. Does anyone have before & after dyno graphs from those mods? Also, would removing the screen on my MAF be a good idea?
Thanks in advance.
BTW, if anyone is interested in seeing a before & after for the cut lid and K&N filter on my car, here it is:
[Modified by bdavies, 12:47 PM 4/22/2002]
Drifting
Joined: May 1999
Posts: 1,976
Likes: 0
From: Herndon Va
Re: just dynoed, what mod next? (bdavies)
Replacement exhausts seem to be worth only a few horses on a mostly stock C5.
There are differing opinions on the effect of removing the MAF screen. It acts as an air straightener so that it flows smoothly over the sensors. Some people have seen a noticeable improvement removing it, others none and a few with a rougher running engine. MHO is leave it alone and (if you want to try no screen) buy another MAF and take the screen out of that one so you have a fall back .
If you want a low dollar mod, then you probably have wasted your money on the panel K&N and should have gone Pro-Flow or Vortex .
You could probably go to a lower thermostat and adjust the fan cut in lower for a few more ponies.
There are really not a lot of cheap horsepower adders.
There are differing opinions on the effect of removing the MAF screen. It acts as an air straightener so that it flows smoothly over the sensors. Some people have seen a noticeable improvement removing it, others none and a few with a rougher running engine. MHO is leave it alone and (if you want to try no screen) buy another MAF and take the screen out of that one so you have a fall back .
If you want a low dollar mod, then you probably have wasted your money on the panel K&N and should have gone Pro-Flow or Vortex .
You could probably go to a lower thermostat and adjust the fan cut in lower for a few more ponies.
There are really not a lot of cheap horsepower adders.
Advanced
Joined: Apr 2001
Posts: 69
Likes: 6
From: Saint Charles MO
Re: just dynoed, what mod next? (bdavies)
We took the LGCC to the dyno a few weekends ago, what we learned most was that most people didn't have a good air/fuel ratio. Breathing is real important, and it looks like your on the right track. I'm one who removed my maf screen. Once it's in you hand you can see just how restrictive it is, for me it was a good mod.
George
George
Le Mans Master
Joined: Nov 2000
Posts: 7,294
Likes: 1
From: Coral Springs Florida
Re: just dynoed, what mod next? (bdavies)
The next mod should be the exhaust. If you want to "feel" the mod then go with the TPIS headers and off road x-pipe and Corsa Indy's. Should be good for at least another 20 RWHP and 15 lbs.RWT...:D
Racer
Joined: Jul 2001
Posts: 320
Likes: 0
From: Harrisburg PA
Re: just dynoed, what mod next? (bdavies)
You might look into:
Breathless Performance Power Duct $239 ~5 hp
LS6 Intake Manifold $450 ~10 hp
Underdrive Pulley $249 ~few hp
Throttle Body Bypass Tube $19.95 ~? hp
Tornado Fuel Saver $75 ~20 hp
(well, at least in the informercial. just kidding, don't waste your money on this p.o.s.)
Hope this helps!
Race Director
Joined: Aug 1999
Posts: 15,300
Likes: 33
From: Houston Texas
Re: just dynoed, what mod next? (vstella)
I would probably go with LT headers next as well. Remember, the '03 Cobra is going to be out soon, and you don't want to lose to it(j/k) :jester Actually, I think headers would give you more of a gain than an aftermarket exhaust. Your kinda at the point where mods start to become expensive. I don't think the air bridge is worth the money with the mods you have. Good luck.
Race Director
Joined: Jan 2000
Posts: 15,707
Likes: 1
From: Lynnfield MA
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In VI Veteran
Re: just dynoed, what mod next? (bdavies)
Corsa Indy's, x-pipe and FLP headers when you can save the coin... I hate waiting too... :yesnod:
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Team Owner
Joined: Jul 1999
Posts: 50,808
Likes: 10
From: Buy USA products! Check the label! Employ Americans
Re: just dynoed, what mod next? (Smoke-N-Shot)
Long tube headers all the little stuff is junk IMHO. Cat back 4 HP not worth it. Forget the hype of the little things just wait and get LTH.
Thread Starter
Pro
Joined: Oct 2001
Posts: 507
Likes: 0
From: Chatsworth CA
Re: just dynoed, what mod next?
Thanks for the inputs :cheers: I am friends with a guy who is friends with Steve Cole @ TTS. I might try to pull on that thread and see if I could work out a decent deal for a set of his long tubes. What's the going rate for a set installed?
As for the LS6 intake manifold, I was under the impression that the 2002 LS1 and LS6 used the same manifold, it was the heads and cam that are different. Is this not the case?
As for the K&N panel filter, I am planning on getting a Blackwing or maybe a Haltech in the future, but I already had a dyno date scheduled and had done a stock baseline back in January. I figured I might as well see what difference a cut lid and K&N would make.
As for the LS6 intake manifold, I was under the impression that the 2002 LS1 and LS6 used the same manifold, it was the heads and cam that are different. Is this not the case?
As for the K&N panel filter, I am planning on getting a Blackwing or maybe a Haltech in the future, but I already had a dyno date scheduled and had done a stock baseline back in January. I figured I might as well see what difference a cut lid and K&N would make.
Race Director
Joined: Mar 2001
Posts: 14,480
Likes: 132
From: PA
Re: just dynoed, what mod next? (bdavies)
As for the LS6 intake manifold, I was under the impression that the 2002 LS1 and LS6 used the same manifold, it was the heads and cam that are different. Is this not the case?
