Open lid filter mod LT4
Thread Starter
Racer
Joined: Jul 2011
Posts: 265
Likes: 77
From: chicagoland il
Open lid filter mod LT4
Looking at Mid America open lid mod for the lt4 without the K&N filter for $39. How does the open lid respond to rain showers or car washes? Seems the open element if front of the car may pose problems, especially going with stock paper elements. If it is non-issue I would give it a try.
Melting Slicks
Joined: Dec 1999
Posts: 2,816
Likes: 2
From: Austin, TX
Even with an open air filter lid, the air filter is shielded from the outside by the radiator shroud so water won't be an issue. Some of the cold air induction systems do potentially expose it to water ingestion, but that's a different setup from what you're talking about.
Thread Starter
Racer
Joined: Jul 2011
Posts: 265
Likes: 77
From: chicagoland il
Although I read a dyno test with stock, open lid, claw and concluded not real gain, but does not hurt either. I would cut my lid but after that it is not reversible for resale. 39 shipped is cheap enough mod and still have stock lid in need be.
Thread Starter
Racer
Joined: Jul 2011
Posts: 265
Likes: 77
From: chicagoland il
Pretty much the same for the exhaust as the stock lt4 setup is pretty free flowing with little gain using aftermarket exhaust cat backs. Even the LT4 cast exhaust manifold is pretty well engineered. The stock setup on the LT4 has a built in X pipe. However Going to a 3 inch aftermarket exhaust does see more modest gain. The aftermarket cat backs do present a better sound. Apparently Chevy went with the muted route since that is what they thought the average consumer wanted back in 90's. The C5 z06 with the titanium exhaust shows what Chevy could have done if they wanted to.
Drifting
Joined: Oct 2005
Posts: 1,913
Likes: 48
From: Angier nc
The stock lt4 exhaust does not have an x-pipe.It has an h-pipe with a resonator which is the most restrictive part in the system IMO.
I would replace the resonator with an x-pipe and call it good.
I would replace the resonator with an x-pipe and call it good.
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
Um...unless the LT4 resonator is different than one on a LT1, it is NOT restrictive at all. The tubes are straight thru. They do narrow down just a bit at the ends however, but straight thru otherwise.
I have an open air lid, no issues even in rain. I cannot say I noticed any difference but it has got to be a bit better than the stock unit on my 93.
I have an open air lid, no issues even in rain. I cannot say I noticed any difference but it has got to be a bit better than the stock unit on my 93.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
Save some money and cut the lid yourself. It's not really worth any horsepower but it beats giving money away to one of the catalogs. My old setup...
For water to be ingested in the ram air setups the intake would have to be under water. So you would potentially ruin your carpet and have to title your vette as a flood vehicle as well. My current setup which is no longer being sold...
This is the inside of a 95 resonator from another member...
I did an X-Pipe and muffler eliminators before the other exhaust mods and was very happy with the sound. You also drop a good bit of weight and clean up the look in the back...
For water to be ingested in the ram air setups the intake would have to be under water. So you would potentially ruin your carpet and have to title your vette as a flood vehicle as well. My current setup which is no longer being sold...
This is the inside of a 95 resonator from another member...
I did an X-Pipe and muffler eliminators before the other exhaust mods and was very happy with the sound. You also drop a good bit of weight and clean up the look in the back...
Last edited by rickneworleansla; Dec 1, 2011 at 11:32 AM.
Thread Starter
Racer
Joined: Jul 2011
Posts: 265
Likes: 77
From: chicagoland il
Rick, very helpful pics. I was looking to modify exhaust with the usual options: replace resonator with x pipe and leave stock muffler, leave resonator and replace muffler with flowmaster, do a complete cat back, or use x pipe/stock resonator with muffler eliminator.
would be nice to hear each options, but not practical. did hear muffler eliminator on a pick up truck, it was loud. was thinking about your set up with chambered tips. not looking for nascar loud, just a sizable upgrade from stock.
would be nice to hear each options, but not practical. did hear muffler eliminator on a pick up truck, it was loud. was thinking about your set up with chambered tips. not looking for nascar loud, just a sizable upgrade from stock.
