Is 400+ hp possible with stock Ls1 heads and streetable cam?
05-26-2011 | 10:09 AM
#24
Several things IMO:
1) Cam streetability or driveability is in the tune. A 22x, 23x, and even 24x duration cams can be tamed. I've got a healthy one in my Z (T56) and can cruise around the parking garage on MSU's campus in 1st gear at 1600 rpm just fine.
2) Supporting mods are nothing to ignore. Headers, pushrods, injectors, torque converter....all of these things need to be considered based on cam selection. If you're shooting for 400 on an otherwise stock long block, the right selection of parts is necessary to get you there with good driveability.
3) HP isn't everything. Look at power under the curve and torque production! A cam that has a higher peak horsepower, but lower average HP/torque production under the curve only serves as a bragging figure when you're spouting off numbers. It'd be different if the engine shot up to 6600 RPM and stayed there the entire time you were WOT. But, it doesn't.
4) God damn is this an old thread...
1) Cam streetability or driveability is in the tune. A 22x, 23x, and even 24x duration cams can be tamed. I've got a healthy one in my Z (T56) and can cruise around the parking garage on MSU's campus in 1st gear at 1600 rpm just fine.
2) Supporting mods are nothing to ignore. Headers, pushrods, injectors, torque converter....all of these things need to be considered based on cam selection. If you're shooting for 400 on an otherwise stock long block, the right selection of parts is necessary to get you there with good driveability.
3) HP isn't everything. Look at power under the curve and torque production! A cam that has a higher peak horsepower, but lower average HP/torque production under the curve only serves as a bragging figure when you're spouting off numbers. It'd be different if the engine shot up to 6600 RPM and stayed there the entire time you were WOT. But, it doesn't.
4) God damn is this an old thread...
05-26-2011 | 10:45 AM
#25
This thread is so old. We started a cam-only thread in the dyno section in 2004. There are now hundreds of cam-only LS1s that make over 400rwhp with the new lobe technology and better tuning.
https://ls1tech.com/forums/dynamomet...no-thread.html
No need to keep this ancient thread open.
https://ls1tech.com/forums/dynamomet...no-thread.html
No need to keep this ancient thread open.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
