Modern power steering system
Thread Starter
2nd Gear
Joined: Feb 2014
Posts: 2
Likes: 0
From: Oakland Gardens N.Y.
Modern power steering system
Hi vette guys, I have an 80 vette and would like to upgrade the power steering system. Which one is better the steering rack by steeriods or the modern steering box kit by Borgeson? Second question is how much HP can I get out of a ZZ4 with bolt on parts? I would like 425-450 HP.
Racer
Joined: Mar 2011
Posts: 480
Likes: 42
From: Los Angeles CA
This should give you some good reading about steering.
http://forums.corvetteforum.com/c3-t...steeroids.html
http://forums.corvetteforum.com/c3-t...steeroids.html
Melting Slicks
Joined: Dec 1999
Posts: 2,116
Likes: 156
From: Mid West
Cruise-In III Veteran
To get 425 horsepower from bolt on parts, you will need to purchase new heads. If you don't mind slightly porting the existing L98 heads that are already on the engine, ~425 gross horsepower is probably doable. I don't have dyno numbers for my engine outside of the car, just off a chassis dyne. I'm producing 328 Hp at the rear wheels with a modified ZZ4. Figure I'm somewhere near 400 net horsepower.
Early on I had some issues with valve float with the LT4 cam shaft, so most of mods are in that area. I might have gone overkill, but I don't have any valve float so I don't mind.
Not a killer engine, but it's been reliable. Been in this configuration for over 10 years now. Sees 6000 rpm quite often.
Mods:
Early on I had some issues with valve float with the LT4 cam shaft, so most of mods are in that area. I might have gone overkill, but I don't have any valve float so I don't mind.
Not a killer engine, but it's been reliable. Been in this configuration for over 10 years now. Sees 6000 rpm quite often.
Mods:
- Home ported cylinder heads (removed casting flash, improved radius going into valve seat, removed machining flaws in ports, etc.)
- Stock size Manley race flow valves
- Manley valve springs, retainers, locks
- AFR "rev kit' for additional RPM
- GM's "hot cam" - LT 4 camshaft
- 1.6 ratio roller rockers w/ stud girdle
- Moroso low drag water pump
- Full length headers w/ true dual exhaust
- Custom cowl induction cold air intake
