Which one first?
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Which one first?
Going to finally step up to the plate on my crossfire. Things to do are cam, heads, 1.6 rockers, headers. What is the best order of things if I am doing this over time, watching my pennies.
I would hope:
rockers
headers
cam
heads
maybe headers then rockers.
Obviously, cam and heads are a level above rockers and headers
Most of my driving is streets and beltway commuting. Interested in more 0-60 time than top end.
[Modified by Larry82, 6:42 PM 2/9/2002]
I would hope:
rockers
headers
cam
heads
maybe headers then rockers.
Obviously, cam and heads are a level above rockers and headers
Most of my driving is streets and beltway commuting. Interested in more 0-60 time than top end.
[Modified by Larry82, 6:42 PM 2/9/2002]
Burning Brakes
Joined: May 2001
Posts: 1,102
Likes: 0
From: spring city pa
Re: Which one first? (Larry82)
Cam it first ,,,, the ports are so restrictive that a cam by virtue of duration
alone will really help you . It,s really easy this will allow it to breath longer !
G :cool:
Le Mans Master
Joined: Feb 1999
Posts: 5,877
Likes: 1
From: Park Ridge IL
Re: Which one first? (Larry82)
Having been down the Crossfire Modification road before, I would suggest porting the manifold runners to match the intake port of the cylinder heads first. I'm sure you are aware that about 1/3 of the manifolds intake port is blocked.
After that, I would start form the inside and work my way out. Install a better cam and swap on some aluminum heads with smaller chambers to raise the compression up to around 10.0. Then do the exhaust.
Rockers, cam, and headers/exhaust will do nothing to a Crossfire engine without fixing the manifold first.
After that, I would start form the inside and work my way out. Install a better cam and swap on some aluminum heads with smaller chambers to raise the compression up to around 10.0. Then do the exhaust.
Rockers, cam, and headers/exhaust will do nothing to a Crossfire engine without fixing the manifold first.
Melting Slicks
Joined: Feb 2000
Posts: 2,109
Likes: 73
From: ATLANTA/HOUSTON
Re: Which one first? (Larry82)
Hey Larry, what's up?
IMO, if you want to get the most noticable gain in performance, do it all at once. But as you stated, you are wanting to do it over time. SO,,,, 1st I would suggest doing the headers. 2nd the Rocker-Arms, this will effectively give you more lift & duration from the cam you've got. Finally, I would do the Heads/Cam at the same time. Give us a call. :cool:
[Modified by DARTH VETTER, 1:42 AM 2/22/2002]
IMO, if you want to get the most noticable gain in performance, do it all at once. But as you stated, you are wanting to do it over time. SO,,,, 1st I would suggest doing the headers. 2nd the Rocker-Arms, this will effectively give you more lift & duration from the cam you've got. Finally, I would do the Heads/Cam at the same time. Give us a call. :cool:
[Modified by DARTH VETTER, 1:42 AM 2/22/2002]
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Re: Which one first? (DARTH VETTER)
Darth:
Went by to see Kyle today to get a price on 1.6 rockers. Going to do that first - cheaper than headers at this point. Wife wants to re-landscape the back yard so only so much $ to go around at this time. Will probably do the headers in a month or three.
Saw you and crew at the Atchafalaya yesterday again, but could not get over there before you guys left.
Larry
Went by to see Kyle today to get a price on 1.6 rockers. Going to do that first - cheaper than headers at this point. Wife wants to re-landscape the back yard so only so much $ to go around at this time. Will probably do the headers in a month or three.
Saw you and crew at the Atchafalaya yesterday again, but could not get over there before you guys left.
Larry
Melting Slicks
Joined: Feb 2000
Posts: 2,109
Likes: 73
From: ATLANTA/HOUSTON
Re: Which one first? (Larry82)
Sounds good. Sorry we couldn't get back to you today. We are slammed with a shop full of cars & the phone ringing off the hook. Kyle or myself wil give you a call tomorrow. :yesnod:
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Melting Slicks
Joined: Feb 2000
Posts: 2,109
Likes: 73
From: ATLANTA/HOUSTON
Re: Which one first? (Larry82)
hehehe, If we get that busy we'll just hire some more techs. We've got a full shop & have 4 more cars coming in this next week. We're finishing some of the ones that are in there now to make room for them. :cool: