cam change for 82cfi???
Thread Starter
Advanced
Joined: Apr 2013
Posts: 89
Likes: 0
From: newtown ct
cam change for 82cfi???
way ahead of my self here but has anybody tried to step the cam in a 82 cfi up a couple of clicks ???I dont mean just advancing or retarding the stock one but a mild thumper style or street beater type cam???...anyone ?
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
Jim
Melting Slicks
Joined: Aug 2003
Posts: 3,415
Likes: 291
From: dayton oh
Beerhunter - this is the list compiled/sent to me when i asked about CFI upgreades:
- Remove hood flapper for cold air always
- Port CFI intake or buy Reneage intake
- Dart Iron Eagel/Edelbrock 165cc port 72 cc chamber heads
- 2030 or 2040 Cam
- Full roller rockers
- Dual exhaust
- Hi perf cat or tesxt pipe
- lower backpressure mufflers
- headers
- 85 Vette fuel pump
- Remove smog if legal in your area
- Remove hood flapper for cold air always
- Port CFI intake or buy Reneage intake
- Dart Iron Eagel/Edelbrock 165cc port 72 cc chamber heads
- 2030 or 2040 Cam
- Full roller rockers
- Dual exhaust
- Hi perf cat or tesxt pipe
- lower backpressure mufflers
- headers
- 85 Vette fuel pump
- Remove smog if legal in your area
Instructor
Joined: Dec 2009
Posts: 199
Likes: 35
From: USA
I installed a Comp Cam 12-249-4 (XE249H) with 1.6 roller rockers. The stock ECM handles it just fine. Along with a number of other changes, it performs quite nicely now. Go here (http://forums.corvetteforum.com/c3-t...crossfire.html) for some detail.
Le Mans Master
Joined: May 2007
Posts: 5,021
Likes: 1,120
From: North tonawanda NY
Keep in mind the 82-84 intake has been flow tested and was found to flow well below 600cfm..... Correcting this bottleneck will have the biggest effect and allow other upgrades to work better.... and if you care at all about performance or gas mileage ditch the idea of the Thumpr its designed primarily to fake the sound of a much more aggressive cam.... I really doubt you could get it to even run in a computer controller engine since it throws everything so out of wack to achieve the lopy idle. People have a hard enough time in non computer controlled vehicles getting the timing right and such so it runs reliably.
Btw I waited like 5 years for the "renegade" cfi to come out of pre order/ back order status and gave up....they have been advertised under two different names (x ram) and both seem to be "buy now get delivery when the next manufacturing run happens"......someday.
Btw I waited like 5 years for the "renegade" cfi to come out of pre order/ back order status and gave up....they have been advertised under two different names (x ram) and both seem to be "buy now get delivery when the next manufacturing run happens"......someday.
Last edited by augiedoggy; Apr 29, 2013 at 01:57 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Instructor
Joined: Dec 2009
Posts: 199
Likes: 35
From: USA
I ordered my Renegade Dec 2009 and it was delivered Dec 2010 (nice Christmas present)! Do purchase one, it makes quite a difference, especially with a cam and head change. But be patient, the DCS folks are real nice and will keep you apprised of progress.
Le Mans Master
Joined: May 2007
Posts: 5,021
Likes: 1,120
From: North tonawanda NY
Wished I had saw people who actually got one....I saw lots of posts from people angry because of the back order times that kept growing when I Google it and posts from people who ordered the x ram only to have the distributor go MIA with their money it seems.... I no longer have my 84 but it was very reliable for the 13 years I drove it.
Le Mans Master
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
I changed to a hotter cam no problems .crane cams has a couple of choices that will not have a proplem with the computer.the biggest improvment will be the intake and the heads.you can port out your intake for a lot of hp gain but the new renegade intake is the best out there so far.
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
Comp cams, edelbrock , crane cams.... All have cams for our CFI or you can go with an RV/towing/4x4 cam with a duration under 205 @.050 . Lift isn't much of a factor.
Lumpy idle causes the map sensor to go crazy. Some have been able to tune the CFI to handle hotter cams but I don't think there is much to be gained unless you're going all out with ported TBs and manifold.
Lumpy idle causes the map sensor to go crazy. Some have been able to tune the CFI to handle hotter cams but I don't think there is much to be gained unless you're going all out with ported TBs and manifold.
Thread Starter
Advanced
Joined: Apr 2013
Posts: 89
Likes: 0
From: newtown ct
seriously thinking of pulling all cfi related parts,motor and trans and storing it nicely only has 56k on it .would love to drop in my 450 horse smallblock from another project with a 4 or 5 speed stick , but I think my brain is drooling bringing back memories of my early 20's ripping up backroads with my camaros and such. torn between keeping it somewhat origional or going over board ...once you cross the line could be no returning ???