I get a good many questions concerning the modifications that will need to be done
to make the average C4 corvette faster that stock.
many people fail to realize that the basics always apply,now you have some known limitations such as the stock differential only has gear ratios up to 3.54:1 and 3.73:1 to replace the stock 2.87:1-3.07:1 ratios and the stock transmissions are all limited to handling about 400 ft lbs of torque in the O.E.M. form (keep in mind, the tires spinning act as a safety fuse so your unlikely to break the transmission or drive train with stock street tires unless you drive like a total jerk and do standing start 3500 rpm launches or drop it from neutral into drive.
obviously changes like a cam upgrade and better flowing heads, long tube headers and a 3000 rpm stall converter will noticeably improve performance
theres a good deal more related info in the lower posted links, but the most common and well proven route to noticeably better performance is a multi level approach where you install better flowing heads, (generally in the 180cc-200cc port size that flow at least 250 cfm at .500 lift, a cam in the 225-235 duration, and .520-.580 lift range, a 377-406 displacement short block, a much better intake manifold thats less restrictive and larger flow rated injectors, to match the intended air flow rate increases, all these mods coupled with a higher flow, less restrictive exhaust can really wake up the performance on what from the factory was a good looking and decent handling car that was a bit under powered.
changing the car that originally was a mid 15 second 1/4 mile performance in most cases to a low 13 to mid 12 second performance in most cases.
obviously if your checking account balance can handle the potential strain a little research can show you how to improve all aspects of the cars performance even more!
related info
If your serious about building better power you can be darn sure the engine you use needs better heads,cam, intake, higher compression,and most likely larger displacement
http://garage.grumpysperformance.com/index.php?threads/sellecting-cylinder-heads.796/
http://garage.grumpysperformance.co...ive-are-the-stock-tpi-engine-components.1509/
ADEQUATE FUEL SUPPLY
http://garage.grumpysperformance.com/index.php?threads/replacing-a-c-4-fuel-pump.33/
http://garage.grumpysperformance.com/index.php?threads/how-big-a-fuel-pump-do-you-need.1939/
http://garage.grumpysperformance.co...ive-are-the-stock-tpi-engine-components.1509/
http://garage.grumpysperformance.com/index.php?threads/calculate-fuel-injector-size.1200/
http://garage.grumpysperformance.com/index.php?threads/can-you-get-there-with-tpi.10494/
http://garage.grumpysperformance.com/index.php?threads/setting-up-your-fuel-system.211/
BETTER COOLING
if you add more horsepower youll by default need better cooling as any engine that makes more horse power generates more heat
http://garage.grumpysperformance.com/index.php?threads/cooling-off-that-c4-corvette.3954/
GETTING THE VALVE TRAIN SET UP CORRECTLY
the one are I see most guys screw up is getting the cam duration and lift and lsa matching the engine displacement and compression ratio and the cars drive train gearing.
the other real common mistake is not verifying all the engine clearances and valve train geometry
http://garage.grumpysperformance.co...e-springs-and-setting-up-the-valve-train.181/
http://garage.grumpysperformance.com/index.php?threads/valve-train-clearances-and-problems.528/
http://garage.grumpysperformance.com/index.php?threads/checking-piston-to-valve-clearances.399/
http://garage.grumpysperformance.com/index.php?threads/valve-seat-angles-and-air-flow.8460/
BETTER SUSPENSION AND BRAKES
http://garage.grumpysperformance.com/index.php?threads/upgrading-your-c4-to-c5-brakes.13/
http://garage.grumpysperformance.com/index.php?threads/suspension-upgrade.11385/
http://garage.grumpysperformance.com/index.php?threads/upgrading-the-suspension-on-a-c-4.483/
ADEQUATE LUBRACATION
http://garage.grumpysperformance.com/index.php?threads/building-a-custom-wet-sump-oil-pan.65/
http://garage.grumpysperformance.com/index.php?threads/oil-system-mods-that-help.2187/
http://garage.grumpysperformance.com/index.php?threads/whats-a-windage-tray-do.64/
http://garage.grumpysperformance.co...g-up-oil-feed-holes-in-bearings-shells.10750/
http://garage.grumpysperformance.co...ng-clearances-engine-builders-magazine.11965/
to make the average C4 corvette faster that stock.
many people fail to realize that the basics always apply,now you have some known limitations such as the stock differential only has gear ratios up to 3.54:1 and 3.73:1 to replace the stock 2.87:1-3.07:1 ratios and the stock transmissions are all limited to handling about 400 ft lbs of torque in the O.E.M. form (keep in mind, the tires spinning act as a safety fuse so your unlikely to break the transmission or drive train with stock street tires unless you drive like a total jerk and do standing start 3500 rpm launches or drop it from neutral into drive.
obviously changes like a cam upgrade and better flowing heads, long tube headers and a 3000 rpm stall converter will noticeably improve performance
theres a good deal more related info in the lower posted links, but the most common and well proven route to noticeably better performance is a multi level approach where you install better flowing heads, (generally in the 180cc-200cc port size that flow at least 250 cfm at .500 lift, a cam in the 225-235 duration, and .520-.580 lift range, a 377-406 displacement short block, a much better intake manifold thats less restrictive and larger flow rated injectors, to match the intended air flow rate increases, all these mods coupled with a higher flow, less restrictive exhaust can really wake up the performance on what from the factory was a good looking and decent handling car that was a bit under powered.
changing the car that originally was a mid 15 second 1/4 mile performance in most cases to a low 13 to mid 12 second performance in most cases.
obviously if your checking account balance can handle the potential strain a little research can show you how to improve all aspects of the cars performance even more!
related info
If your serious about building better power you can be darn sure the engine you use needs better heads,cam, intake, higher compression,and most likely larger displacement
http://garage.grumpysperformance.com/index.php?threads/sellecting-cylinder-heads.796/
http://garage.grumpysperformance.co...ive-are-the-stock-tpi-engine-components.1509/
ADEQUATE FUEL SUPPLY
http://garage.grumpysperformance.com/index.php?threads/replacing-a-c-4-fuel-pump.33/
http://garage.grumpysperformance.com/index.php?threads/how-big-a-fuel-pump-do-you-need.1939/
http://garage.grumpysperformance.co...ive-are-the-stock-tpi-engine-components.1509/
http://garage.grumpysperformance.com/index.php?threads/calculate-fuel-injector-size.1200/
http://garage.grumpysperformance.com/index.php?threads/can-you-get-there-with-tpi.10494/
http://garage.grumpysperformance.com/index.php?threads/setting-up-your-fuel-system.211/
BETTER COOLING
if you add more horsepower youll by default need better cooling as any engine that makes more horse power generates more heat
http://garage.grumpysperformance.com/index.php?threads/cooling-off-that-c4-corvette.3954/
GETTING THE VALVE TRAIN SET UP CORRECTLY
the one are I see most guys screw up is getting the cam duration and lift and lsa matching the engine displacement and compression ratio and the cars drive train gearing.
the other real common mistake is not verifying all the engine clearances and valve train geometry
http://garage.grumpysperformance.co...e-springs-and-setting-up-the-valve-train.181/
http://garage.grumpysperformance.com/index.php?threads/valve-train-clearances-and-problems.528/
http://garage.grumpysperformance.com/index.php?threads/checking-piston-to-valve-clearances.399/
http://garage.grumpysperformance.com/index.php?threads/valve-seat-angles-and-air-flow.8460/
BETTER SUSPENSION AND BRAKES
http://garage.grumpysperformance.com/index.php?threads/upgrading-your-c4-to-c5-brakes.13/
http://garage.grumpysperformance.com/index.php?threads/suspension-upgrade.11385/
http://garage.grumpysperformance.com/index.php?threads/upgrading-the-suspension-on-a-c-4.483/
ADEQUATE LUBRACATION
http://garage.grumpysperformance.com/index.php?threads/building-a-custom-wet-sump-oil-pan.65/
http://garage.grumpysperformance.com/index.php?threads/oil-system-mods-that-help.2187/
http://garage.grumpysperformance.com/index.php?threads/whats-a-windage-tray-do.64/
http://garage.grumpysperformance.co...g-up-oil-feed-holes-in-bearings-shells.10750/
http://garage.grumpysperformance.co...ng-clearances-engine-builders-magazine.11965/
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