Induction / filter options for 560hp '88
Thread Starter
Instructor
Joined: Aug 2001
Posts: 192
Likes: 1
From: Brackley Northamptonshire
Induction / filter options for 560hp '88
Hi all,
Not going to get enough air with a KN and cut lid standard system :-D what air filters / induction systems are you guys using for similar HP?
Thanks in advance
Not going to get enough air with a KN and cut lid standard system :-D what air filters / induction systems are you guys using for similar HP?
Thanks in advance
Drifting
Joined: Jan 2005
Posts: 1,354
Likes: 325
From: San Antonio Tx
The 85-89 air intake housings were very restrictive because of the bottle neck over the radiator. Even my "little" 350 with a ZZ430 clone was running out of air. After converting to MAP and eliminating the mass air flow sensor my MAP KPa was dropping into the 80's at under 5k rpm's. I found nothing available in the aftermarket that I liked so I built my own. It has a 4" tube to the throttle body. Now my MAP is still 98 KPa at 6200 rpm's using the stock filter. It could be built using a larger filter.
Team Owner
Joined: Sep 2001
Posts: 62,160
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
I'm making similar power, just using the SLP intake, still restricted through the MAF and rubber bellows.
You're going to have to design your own better way I think.
You're going to have to design your own better way I think.
Melting Slicks
Joined: Aug 2003
Posts: 3,403
Likes: 397
From: Lakeville MI
A 3.5" or 4" MAF with appropriate filter and couplers would be sufficient. Oval tubing and vertical bends or pie cuts would help with clearance.
Maybe add a y-coupler and run two filters or try a filter like this one (for example): https://www.bbkperformance.com/washa...1733-1738.html
Maybe add a y-coupler and run two filters or try a filter like this one (for example): https://www.bbkperformance.com/washa...1733-1738.html
Last edited by tequilaboy; Jun 7, 2022 at 08:59 PM.
Pro
Joined: Dec 2018
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From: Wisconsin
2023 Corvette of the Year Finalist - Modified
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Finalist 2020 C4 of the Year - Modified
You're going to be stuck making your own custom intake. I believe Joby built one that has a cone style filter in front of the radiator.
I just use cone style filters in front of the turbos on the 85.
I just use cone style filters in front of the turbos on the 85.
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Drifting
Joined: Mar 2018
Posts: 1,362
Likes: 400
From: DFW TX
^^^^ Mine is setup similarly in my 84 LS swapped car. Later slanted back rad/fan setup with C6 LS3 Airaid cold air kit and 4" air tube, LS3 card style MAF and a hole cut into the shroud for the filter.
I would like to see what the OP is dealing with under his hood. I looked through some of his previous posts and it looks like it may be a custom setup.
I would like to see what the OP is dealing with under his hood. I looked through some of his previous posts and it looks like it may be a custom setup.
Race Director
Joined: Nov 2003
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From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
I have one of the ultra-rare TPIS air boxes for L98s. (Might be called "Air Force One"?) I wonder how much HP they are supposed to support?
Obvious difference in CSA. Sits in factory location. Optical illusion in pic. Fiberglass FLOOR is what you see thru the opening.
Only found this pic on my PC...More can be seen here.
Obvious difference in CSA. Sits in factory location. Optical illusion in pic. Fiberglass FLOOR is what you see thru the opening.
Only found this pic on my PC...More can be seen here.
Last edited by GREGGPENN; Jun 8, 2022 at 09:23 PM.
Drifting
Joined: Apr 2011
Posts: 1,925
Likes: 441
From: Albuquerque NM
How much benefit is their to swapping to the angle radiator and fan setup on an early car?
What all is needed to do the swap and what all needs to be done? There are a lot more intake options with the angled radiator and fan setup.
What all is needed to do the swap and what all needs to be done? There are a lot more intake options with the angled radiator and fan setup.