454 efficiency - Maximum CR

Propane, Butane, LPG, GPL, C3H8, C4H10
gottago
Posts: 200
Joined: Thu May 24, 2012 7:39 pm
Location: British Columbia Canada

Re: 454 efficiency - Maximum CR

Post by gottago » Fri May 04, 2018 8:53 pm

Interesting builder post over on speed talk in regard the 454. Check the cam. Nice compromise on a 109 lsa..

Re: 454SS 230hp remedy
Quote

Post by cstraub » Fri May 04, 2018 4:52 pm

454ss +.060"
Manifolds
QJet Intake
9 to 1 compression
Hyd Roller
.550/.491
209/221
109 LSA

RPM lb-ft HP
2000 470.5 179.2
2200 475.1 199
2400 480.7 219.7
2600 503.9 249.5
2800 520 277.2
3000 528.3 301.8
3200 530.3 323.1
3300 532.6 334.6 Peak Torque
3400 532.3 344.6
3600 523.6 358.9
3800 521.8 377.5
4000 514.2 391.6
4200 500.1 399.9
4400 485 406.3
4600 464.1 406.5
4800 448.5 409.9
5000 437.1 416.1 Peak HP
5200 414.8 410.5

Same engine but with headers:

RPM lb-ft HP
2400 508.8 232.5
2600 520.2 257.5
2800 543.1 289.5
3000 536 306.2
3200 553.8 337.4 Peak Torque
3400 551.9 357.3
3600 535.9 367.3
3800 530.4 383.8
4000 518.6 395
4200 513 410.2
4400 494.9 414.6
4600 483.1 423.1
4800 463.8 423.9
5000 447.3 425.8
5100 443.2 430.4 Peak HP
5200 432.8 428.5
5400 402.1 413.4


storm
Posts: 559
Joined: Wed Jan 10, 2007 10:10 pm
Location: NSW, Australia

Re: 454 efficiency - Maximum CR

Post by storm » Fri May 04, 2018 10:30 pm

Nice numbers for what appears to essentially be a stocker except for the roller cam.
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