L98 intake
Thread Starter
Intermediate
Joined: Mar 2004
Posts: 31
Likes: 0
From: Homer Glen IL
L98 intake
I am considering replacing the plenum, runners, and manifold on my 89vert. I have already cleaned up the exhaust side with TPIS lt headers, high-flo cat, and Borla exhaust. Now I want to free up the intake side. I'm trying to find out who's got the best quality product (best fit, reliability, etc.) on the market before buying. Your opinions are appreciated.
Melting Slicks
Joined: May 2001
Posts: 3,014
Likes: 18
From: Raleigh, NC
*sigh*
Between here and www.thirdgen.org this question is asked every 15 minutes.
http://forums.corvetteforum.com/sear...t=on&forum_id=
Lots of info there.
The basics are as follows:
There is replacing the base and runners. This maybe your best option since you are mildly modded. Expect to see upper RPM power gains, a slight loss of low end torque, but don't expect much above 4800 RPM's.
The Super Ram. Probably the best choice for mildly modded engines. Good compromise between low end and high end. Probably about as good as it's gonna get for a long tube runner set-up.
The Mini-ram. A short runner set-up similar to the LT1 intake. Excellent high RPM capabilities, but you'll need some more mods to really make use of it.
The LT1 intake is a low cost option. It resembles the mini-ram but must have custom machine work done to make it applicable to the L98.
All should have similar fit/reliability. The Super Ram has 3 pieces, so there is a greater possibility of it leaking, but that should be a non-issue if installed properly. Replacing the base and runners has been difficult for a couple people. Apparently some of TPIS's stuff doesn't fit properly without some modifications. Search around, and you'll come up with all kinds of info.
These are just my opinions, others will vary. Good luck!
Between here and www.thirdgen.org this question is asked every 15 minutes.
http://forums.corvetteforum.com/sear...t=on&forum_id=
Lots of info there.
The basics are as follows:
There is replacing the base and runners. This maybe your best option since you are mildly modded. Expect to see upper RPM power gains, a slight loss of low end torque, but don't expect much above 4800 RPM's.
The Super Ram. Probably the best choice for mildly modded engines. Good compromise between low end and high end. Probably about as good as it's gonna get for a long tube runner set-up.
The Mini-ram. A short runner set-up similar to the LT1 intake. Excellent high RPM capabilities, but you'll need some more mods to really make use of it.
The LT1 intake is a low cost option. It resembles the mini-ram but must have custom machine work done to make it applicable to the L98.
All should have similar fit/reliability. The Super Ram has 3 pieces, so there is a greater possibility of it leaking, but that should be a non-issue if installed properly. Replacing the base and runners has been difficult for a couple people. Apparently some of TPIS's stuff doesn't fit properly without some modifications. Search around, and you'll come up with all kinds of info.
These are just my opinions, others will vary. Good luck!
Last edited by neat; Feb 2, 2006 at 01:07 PM.
Melting Slicks
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
Do a search for L98 intake mods here on the board.
I recently posted a before and after dyno comparison of my findings on my intake mods. Others have also done so here. Search on TPIS, accel, super ram, mini ram etc. You should find a decent amount of real world data to help you make an informed decision.
I recently posted a before and after dyno comparison of my findings on my intake mods. Others have also done so here. Search on TPIS, accel, super ram, mini ram etc. You should find a decent amount of real world data to help you make an informed decision.
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Originally Posted by neat
The Mini-ram. A short runner set-up similar to the LT1 intake. Excellent high RPM capabilities, but you'll need some more mods to really make use of it.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
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
Team Owner
Joined: Sep 2001
Posts: 62,139
Likes: 1,728
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Originally Posted by kopbet89c4
Are you saying that the MiniRam is basically an LT1 intake for L98s? On a stock L98, would it act like an LT1 with the same ECM calibration as a factory LT1 motor?
2. Basically, with the right tune. Head (portsize) difference is not too much and cam profiles are very close.
Youll just need to start doing the same mods as LT1 guys do: gears, TC, hotcam, etc.
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Originally Posted by vader86
1. Yes it is.
2. Basically, with the right tune. Head (portsize) difference is not too much and cam profiles are very close.
Youll just need to start doing the same mods as LT1 guys do: gears, TC, hotcam, etc.
2. Basically, with the right tune. Head (portsize) difference is not too much and cam profiles are very close.
Youll just need to start doing the same mods as LT1 guys do: gears, TC, hotcam, etc.
Is it possible that the MiniRam on this setup could be good for this goal as the builder says?
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi