advice, opinions, and experts
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Melting Slicks
Joined: Sep 2003
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advice, opinions, and experts
Tell Me,,, What should I start with? Air pump eliminator, pulley system, or roller rockers?
I think they all give about the same performance wise, right? :cheers:
I think they all give about the same performance wise, right? :cheers:
Drifting
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
Re: advice, opinions, and experts (1990CORVETTE)
You know they've been threatening us for years about more extensive smog checks here. I made sure my headers had air fittings when I ordered them, about 3 yrs ago. I'd be concerned about removing the air pump, even though it really cleans up the engine. Pully replacement is kind of "iffy" here on the forum. Some say 5-10 HP, some say not worth the potential cooling, Alt.charging problems, and $$$. Rockers are a bit of work, and you really need to change springs too. Possibly added more to the to the confusion than helped. Good luck with whatever you decide.
:chevy
:chevy
Racer
Joined: Jun 2002
Posts: 428
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From: Dallas Tx
Re: advice, opinions, and experts (1990CORVETTE)
For cleaning up the visual of the engine bay, removing the AIR pump and hardware. HP gain is 5 or so. Hard to feel a difference.
Roller rockers add HP at the top, but don't do much for low torque. Again, hard to feel. Not much bang for the bucks.
For overall performance gain, I'd start with getting cold air to the engine. Even in the summer, outside air is 50 degrees cooler
Consider 3.73 rear gears (on a 6sp)? Real seat of pants difference.
Roller rockers add HP at the top, but don't do much for low torque. Again, hard to feel. Not much bang for the bucks.
For overall performance gain, I'd start with getting cold air to the engine. Even in the summer, outside air is 50 degrees cooler
Consider 3.73 rear gears (on a 6sp)? Real seat of pants difference.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: advice, opinions, and experts (1990CORVETTE)
Tell Me,,, What should I start with? Air pump eliminator, pulley system, or roller rockers?
I think they all give about the same performance wise, right? :cheers:
I think they all give about the same performance wise, right? :cheers:
No, they do not all give the same performance improvement. RRs will give you the most bang for the buck.
Jake
