Ditching the Crossfire
Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
Originally Posted by edoff13
I had visited the Corvette Connection in Denver asking about what I could do to get more pony's from the L83. The told me about an intake X-Ram. Website www.x-ram.com. I am currently checking the Forum to see if anyone has used this.
Pro
Joined: Dec 2005
Posts: 699
Likes: 0
From: Vettemod.com For the C3 People
St. Jude Donor '06
Comp cam, RHS heads, Edelbrock Intake, Demon Carb. I have done enough research and spent enough time on phone, talked to several old school mechanics, and read tons of articles to be awarded a PHD in trashing the x-fire.
I'll post up specs later if I remember or PM me to remind me. The heads suck, the cam is like a flippin broom handle. Half of my xfire crap was shot so that's why I choose this route. For $1600 and my labor I am looking at a HP increase of 150 or so. We will dyno and see.
Best to you, please keep us posted and we can compare notes
tt
Pick your goal and build your motor around each component, DO NOT just pick and choose, make an educated decision on your parts.
I'll post up specs later if I remember or PM me to remind me. The heads suck, the cam is like a flippin broom handle. Half of my xfire crap was shot so that's why I choose this route. For $1600 and my labor I am looking at a HP increase of 150 or so. We will dyno and see.
Best to you, please keep us posted and we can compare notes
tt
Pick your goal and build your motor around each component, DO NOT just pick and choose, make an educated decision on your parts.
Race Director
Joined: Jan 2003
Posts: 15,175
Likes: 86
From: State of Confusion
Originally Posted by gr8vet
Comp cam, RHS heads, Edelbrock Intake, Demon Carb.
Already starting-out with 9:1 compression with 76cc heads, so smaller 64cc heads will raise CR to approx 10:1, still low-enough for most pump-gas:
keep the RPMs below 5500 with the OEM bottom-end, and you'll make enough smoke to trash the 700R4, or pitch the Dana-44 if you ever hook it up.
Originally Posted by gr8vet
Pick your goal and build your motor around each component, DO NOT just pick and choose, make an educated decision on your parts.
Pro
Joined: Dec 2005
Posts: 699
Likes: 0
From: Vettemod.com For the C3 People
St. Jude Donor '06
Originally Posted by Glensgages
Already starting-out with 9:1 compression with 76cc heads, so smaller 64cc heads will raise CR to approx 10:1, still low-enough for most pump-gas:
keep the RPMs below 5500 with the OEM bottom-end, and you'll make enough smoke to trash the 700R4, or pitch the Dana-44 if you ever hook it up.
What brand torq converter are folks using on the c-3, 80 vintage? In the 2000 stall range?
tt
Advanced
Joined: Nov 2005
Posts: 83
Likes: 0
I've done a carb swap and LOVE IT !! The car is an absolute beast now instead of a pony... I've did Edelbrock intake, 670 holley, true duals with magnaflow mufflers, flowtech headers, and 3.73s in the back, and my car is sooo much more entertaining to drive!
I'm considering a new cam for a winter project, what would you guys recomend? Also, at what power level can I expect the 700r4 to give way?
I'm considering a new cam for a winter project, what would you guys recomend? Also, at what power level can I expect the 700r4 to give way?
Pro
Joined: Dec 2005
Posts: 699
Likes: 0
From: Vettemod.com For the C3 People
St. Jude Donor '06
Originally Posted by flynbyu82
I've done a carb swap and LOVE IT !! The car is an absolute beast now instead of a pony... I've did Edelbrock intake, 670 holley, true duals with magnaflow mufflers, flowtech headers, and 3.73s in the back, and my car is sooo much more entertaining to drive!
I'm considering a new cam for a winter project, what would you guys recomend? Also, at what power level can I expect the 700r4 to give way?
I'm considering a new cam for a winter project, what would you guys recomend? Also, at what power level can I expect the 700r4 to give way?
We can see if yours or mine dies first. 
I am going with the comp cam listed below, should perform well, HP and torq, not too extreme, more on the bottom end as cams go, but give a pretty good muscle car lope at low idle. This cam will work with stock heads.
Camshaft Specification Table
Part Number 12-210-2
Engine 1955-1998 Chevrolet
262ci-400ci
8cyl.
Grind Number CS 268H-10
Description
--------------------------------------------------------------------------------
Intake Exhaust
Valve Adjustment 0 0
Gross Valve Lift 0.454 0.454
Duration At 0.006 Tappet Lift 268 268
--------------------------------------------------------------------------------
Valve Timing At 0.006
Open Close
Intake 28 60
Exhaust 68 20
--------------------------------------------------------------------------------
These Specs Are For The Cam Installed At 106 Intake CL
Intake Exhaust
Duration At 0.05 218 218
Lobe Lift 0.3026 0.3026
Lobe Separation 110
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Originally Posted by bluesilver82
Also change the heads, cam and up grade the computer. Check out turbo city and x-ram websites. Twin Turbo can tell you what computer to buy.
Heres the basics to help improve a crossfire in the above quote. Crossfires are really good systems but supported by low HP OEM parts or pieces. Put some *** in the engine and the crossfire will come to life! There like the crossram from the early Z28 Camaros.
They have gotten a bum rap from those who dont realize there potential. A similar mentality will sware that all BB`s overheat or that you need a VC can to make a performance engine run. 
