Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

XFI cams rated with 1.6 rockers

Thread Tools
 
Search this Thread
 
Old 03-29-2010, 08:30 AM
  #1  
Supreme Member
TGO - 10 Year Member
Thread Starter
iTrader: (4)
 
85Iroc-Z's Avatar
 
Join Date: Mar 2007
Location: NE Pennsylvania
Posts: 1,698
Likes: 0
Received 3 Likes on 3 Posts
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
XFI cams rated with 1.6 rockers

I have heard it mentioned before that the lift specs on the xfi cams are given using 1.6 rockers already. Is this true or would 1.6 rockers increase the lift more?
Old 03-29-2010, 08:12 PM
  #2  
Supreme Member
 
JakeJr's Avatar
 
Join Date: Jul 2000
Location: Kempner,TX,
Posts: 1,014
Likes: 0
Received 0 Likes on 0 Posts
Car: 1996 Vette / 1992 GSX1100F Suzuki
Engine: 1996 Corvette Coupe 388 LT1 (+.060)
Transmission: Auto
Axle/Gears: 3.07
Re: XFI cams rated with 1.6 rockers

The specs you see are with 1.6 RRs. So to increase the valve lift to more than what you see advertised you'd need to go with 1.7s, like I did.

Jake
Old 03-29-2010, 09:14 PM
  #3  
On Probation
 
Atilla the Fun's Avatar
 
Join Date: Oct 2008
Location: Northern Utah
Posts: 6,319
Likes: 0
Received 17 Likes on 17 Posts
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: XFI cams rated with 1.6 rockers

That's really not a good idea if you intend to twist it past about 6000 rpm. For a higher rpm combo with durability, stick to 1.6:1 or 1.5:1 with the XFI lobes.
Old 03-29-2010, 11:12 PM
  #4  
Supreme Member
TGO - 10 Year Member
Thread Starter
iTrader: (4)
 
85Iroc-Z's Avatar
 
Join Date: Mar 2007
Location: NE Pennsylvania
Posts: 1,698
Likes: 0
Received 3 Likes on 3 Posts
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: XFI cams rated with 1.6 rockers

OK, thanks. 1.6's it is then.
Old 03-30-2010, 06:31 AM
  #5  
Member
 
3rdgengmachine's Avatar
 
Join Date: May 2004
Location: Inez kentucky
Posts: 180
Likes: 0
Received 0 Likes on 0 Posts
Car: 87 iroc z
Engine: 358 tpi
Transmission: 700r4 with transpack
Axle/Gears: 3.42 with powertrax
Re: XFI cams rated with 1.6 rockers

I got the 280 xfi just for that reson so I could put on 1.5 to decrease my lift some till I get my 400 crank to make my 350 a 383 then Ill go with the 1.6
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
12-10-2019 07:07 PM
Jorlain
Tech / General Engine
6
10-08-2015 01:57 AM
New2Chevy
Engine/Drivetrain/Suspension Parts for Sale
2
09-28-2015 12:35 AM
Stryker412
Tech / General Engine
17
09-07-2015 09:11 AM
Hotrodboba400
Firebirds for Sale
0
09-02-2015 07:28 PM



Quick Reply: XFI cams rated with 1.6 rockers



All times are GMT -5. The time now is 03:26 PM.