85 Dual air filter intake question
Thread Starter
Instructor
Joined: Sep 2013
Posts: 154
Likes: 1
From: Hamilton Ontario
85 Dual air filter intake question
Hi all, need some help. I am looking at buying this. is the install as simple as removing my stock one and bolting this on? anything else I need to know? Will it give be any difference?
![Name: $(KGrHqZ,!ngFJB2y805,BSVZWygW!!~~48_35[1].jpg
Views: 192
Size: 8.5 KB](https://www.corvetteforum.com/forums/attachments/c4-tech-performance/47739483d1381369263-85-dual-air-filter-intake-question-kgrhqz-ngfjb2y805-bsvzwygw-48_35-1-.jpg)
Advanced
Joined: Oct 2013
Posts: 98
Likes: 0
i could be wrong, but the stock intake is designed to take in cold air from the bottom and has a aerofoil for that, and the stock filter and box has quite a large surface area
i dont see a aftermarket intake/filter performing better
the main restriction in the intake system is the excessively long runners, and the intake baseplate and heads could be better
i dont see a aftermarket intake/filter performing better
the main restriction in the intake system is the excessively long runners, and the intake baseplate and heads could be better
Instructor
Joined: Jan 2008
Posts: 217
Likes: 0
From: Coopersville MI
Not much room in front of the radiator shroud either. Good luck on getting it to fit. I think most people will say its not really worth changing the filter box.
Get headers and better exhaust for your 85. I gutted my cat and it really woke it up. My next step is going to be a new engine. I autocross with NCCC so I'll be keeping the TPI and trying to squeeze as much out of it as possible to stay in my class.
Get headers and better exhaust for your 85. I gutted my cat and it really woke it up. My next step is going to be a new engine. I autocross with NCCC so I'll be keeping the TPI and trying to squeeze as much out of it as possible to stay in my class.
Instructor
Joined: Jan 2008
Posts: 217
Likes: 0
From: Coopersville MI
just 1 cat on the 85. I just took it off and used a steel pole to crush and bang out the honeycomb inside. When I bought my 85 I could not (stock tires) go from dead stop and spin tires. Now with 315 on rear I have to be very careful. I also bumped my timing way up and increased fuel pressure a bit. I think I only went up a few psi on pressure, but my timing (92/93 premium fuel) I run at the top of the scale, 14* advanced.
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
i could be wrong, but the stock intake is designed to take in cold air from the bottom and has a aerofoil for that, and the stock filter and box has quite a large surface area
i dont see a aftermarket intake/filter performing better
the main restriction in the intake system is the excessively long runners, and the intake baseplate and heads could be better
i dont see a aftermarket intake/filter performing better
the main restriction in the intake system is the excessively long runners, and the intake baseplate and heads could be better
I have the vortex rammer air intake...piece of crap....eventually going to go back to stock. the filters in your pic look a little small to me....there's probably a better system out there than stock, someone surely will know, but I know its not vortex rammer....
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Nov 2009
Posts: 3,973
Likes: 341
From: Adelaide South Australia
its 3" silicone hose, you can get it online and in autoparts stores,
if you want more info on this and what others have done, read this thread,
http://forums.corvetteforum.com/c4-t...n-removal.html
if you want more info on this and what others have done, read this thread,
http://forums.corvetteforum.com/c4-t...n-removal.html