Will 1.6 ratio roller rockers benefit my turbo build.
Thread Starter
Senior Member
iTrader: (3)
Joined: Jul 1999
Posts: 816
Likes: 0
From: Mechanicsburg, PA
Car: '89 Formula 350
Engine: 5.7L L98 TPI
Transmission: 700-R4 Automatic
Axle/Gears: 7.5 disc posi 3.23
Will 1.6 ratio roller rockers benefit my turbo build.
Okay so I got a set of dart iron Eagle SS heads from a friend for pretty cheap. I am wondering if I should get a set of 1.5 or 1.6 roller rockers to go along with the stock cam? I think the 1.6 rockers will benefit a turbo build Because the valves can stay open longer to let more air in and more air out. I was going to get a ZZ4 cam but that fell through.
10021070 dart iron eagle ss head
72cc 1.94 int 1.50 exh
rocker stud 3/8"
Yield 8.7:1 +/- compression ratio
10021070 dart iron eagle ss head
72cc 1.94 int 1.50 exh
rocker stud 3/8"
Yield 8.7:1 +/- compression ratio
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Will 1.6 ratio roller rockers benefit my turbo build.
It usually helps on stock heads with stock cam, so those heads should also benefit slightly with 1.6's. with a turbo it could help more
Thread Starter
Senior Member
iTrader: (3)
Joined: Jul 1999
Posts: 816
Likes: 0
From: Mechanicsburg, PA
Car: '89 Formula 350
Engine: 5.7L L98 TPI
Transmission: 700-R4 Automatic
Axle/Gears: 7.5 disc posi 3.23
Re: Will 1.6 ratio roller rockers benefit my turbo build.
Awesome!!! Cam is stock. Heads aren't far from stick lol. I hope my turbo likes them.
Junior Member
Joined: Mar 2012
Posts: 51
Likes: 0
From: suburbs of chicago
Car: subaru wagon, two formula's
Engine: tpi 350's
Transmission: 700 r4
Axle/Gears: 3.27 posi
Re: Will 1.6 ratio roller rockers benefit my turbo build.
Whats your turbo setup like? I'm about to do a twin turbo on my 89tpi car
Thread Starter
Senior Member
iTrader: (3)
Joined: Jul 1999
Posts: 816
Likes: 0
From: Mechanicsburg, PA
Car: '89 Formula 350
Engine: 5.7L L98 TPI
Transmission: 700-R4 Automatic
Axle/Gears: 7.5 disc posi 3.23
Re: Will 1.6 ratio roller rockers benefit my turbo build.
I'm running eBay twin T70 but have now decided to go LS motor swap.
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
Dec 10, 2019 07:07 PM
New2Chevy
Engine/Drivetrain/Suspension Parts for Sale
2
Sep 28, 2015 12:35 AM
Hotrodboba400
Firebirds for Sale
0
Sep 2, 2015 07:28 PM
