Lpe Lt1 Superram Base
#17
Re: Lpe Lt1 Superram Base
I'll get pics sent out when I get off work.
dhirocz- I've got a bunch of dyno tests from the January 2005 edition of Super Rod magazine. The article was a manifold comparison in which Super Rod tried to come up with an LT1 that could beat LS1s. The dyno tests are shown as they progressively modified the top end. The first test they changed rocker ratio only. All the tests were done on a 350, stock shortblock. I'll post excerpts from the tests here:
All results are in Ftlbs of Torque. NOT HP and TQ. Again TQ only!
Stock LT1 Manifold, Cam & Heads
RPM...rr1.5...1.6
No difference below 3300rpm, none worth noting below 4000rpm
4000..390...390
4500..390...395
5000..375...390
5500..345...365
6000..315...325
1.6 Rockers, Stock Cam & Heads:
RPM...LT1...SuperRam
3000..380...390
3500..385...420
4000..390...430
4500..390...425
5000..385...385
5500..365...340
6000..325...275
They then changed the valvesprings, as well as 1.6 Rockers, 264HR12 Cam, Stock Heads
RPM...LT1...SuperRam
3000..375...390
3500..390...430
4000..400...440
4500..400...430
5000..395...410
5500..375...370
6000..300...295
1.6 Rockers, 264HR12 Cam, AFR 195 Heads
RPM...LT1...SuperRam
3000..375...400
3500..385...440
4000..400...455
4500..400...455
5000..395...430
5500..380...400
6000..370...360
dhirocz- I've got a bunch of dyno tests from the January 2005 edition of Super Rod magazine. The article was a manifold comparison in which Super Rod tried to come up with an LT1 that could beat LS1s. The dyno tests are shown as they progressively modified the top end. The first test they changed rocker ratio only. All the tests were done on a 350, stock shortblock. I'll post excerpts from the tests here:
All results are in Ftlbs of Torque. NOT HP and TQ. Again TQ only!
Stock LT1 Manifold, Cam & Heads
RPM...rr1.5...1.6
No difference below 3300rpm, none worth noting below 4000rpm
4000..390...390
4500..390...395
5000..375...390
5500..345...365
6000..315...325
1.6 Rockers, Stock Cam & Heads:
RPM...LT1...SuperRam
3000..380...390
3500..385...420
4000..390...430
4500..390...425
5000..385...385
5500..365...340
6000..325...275
They then changed the valvesprings, as well as 1.6 Rockers, 264HR12 Cam, Stock Heads
RPM...LT1...SuperRam
3000..375...390
3500..390...430
4000..400...440
4500..400...430
5000..395...410
5500..375...370
6000..300...295
1.6 Rockers, 264HR12 Cam, AFR 195 Heads
RPM...LT1...SuperRam
3000..375...400
3500..385...440
4000..400...455
4500..400...455
5000..395...430
5500..380...400
6000..370...360
Last edited by Van; 05-20-2005 at 11:35 AM. Reason: Typo
#27
#29