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Message |
 askeldaja
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 AFR kaaned LS1 mootorile (ja natuke juttu LS2 mootorist: juba parema nukaga ~ 500hp).
Vaadates ringi LSx mootoritele pakutavat kraami, jäid silmeette üsna mõistlikud kaaned. Ilmselt on paljud juba seda kõike näinud ja kursis, aga kuna LSx mootoriga autosid on meil eestis juba parasjagu ning tuleb aina juurde, siis mõtete tekitamiseks ikka hea. 
Mootor pole algpõhjana LS1 stockina, aga siiski.
LINK
LS1 Dyno Test
Baseline Engine: Stock LS-1 Longblock, LS-6 Intake Manifold, 1 3/4"
Headers-Long Tube Style, 3" Flowmaster Mufflers. *
VS
All Same As Above WithThe Exception Of: AFR LS-1 "205" CNC Heads, Fast
Intake Manifold, Cam-224/228 @.050 .581 Lift, 78mm Ported Throttle Body. *
AFR LS-1 "205" CNC Heads 530HP@6500 and 475lbft@4900
VS
Stock Heads 428HP@5700 and 432lbft@4700
Lisatud: paar linki LSx mootoritele.
Mongoose Street Head
Mongoose Strip Head
Lisatud:
lisan ka spetsiifilisema katse LS2 mootoriga.
LINK
Our LS2 modifications began with what we felt would return the biggest gains for the least effort. Both the Stage I and Stage II Livernois LS2 camshafts were installed in the short-block by Dominic Gabriel while the engine sat on the dyno.
Our numbers for just the Stage I Livernois cam uncovered impressive potential in the LS2. Peak numbers rang out at 494.4 hp at 6,400 rpm and 450 lb-ft of torque at 5,200 rpm. That's a quick, 90hp pop for just a cam change! Torque numbers were up at peak, with only a slight loss down low--369.8 lb-ft at 3,000 rpm, showing that the engine will still offer good grunt with the cam. More interesting is the useable area under the curve and how much more useable rpm the engine picks up. With this cam, you won't need to shift the car until well past 6,500 versus peak numbers of 5,300 rpm for the stocker. Not only will you gain big power, but with an additional 1,000 rpm to use in each gear, the car will feel stupid fast.
With such a promising start, we couldn't wait to see what just a little bit more cam would do for us. The Stage II Livernois cam tops the .600-inch lift level and offers even more duration. It bumped output to 500.2 hp at 6,400 rpm and 449.8 lb-ft at 5,000 rpm. Check out that power graph--the stock cam starts running out of air at 5,000 rpm, but the Livernois Stage II camshaft keeps the party rockin' well past 6,500 rpm!
Next on our menu of LS2 speed parts was to experiment with a ported version of the stock LS2/LS6 cylinder heads (243 castings). Livernois Motorsports offers up several versions of the LS2 head with substantial port work and completely assembled for around $1,000. Affordable and packed with power, we were really looking forward to what these could offer us with a bigger camshaft
We got just what we were looking for with the Stage-I CNC-ported Livernois LS2 cylinder heads. They topped out at 520.3 hp at 6,300 rpm and an impressive 467.7 lb-ft at 5,100 rpm. While the peak numbers are impressive--a solid 20 hp and 18 lb-ft gain-the area under the curve is what really stands out. A little cam, some ported heads, and you've got yourself one nasty, small-block GM.
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| 17.07.2006 at 01:49 |
4 edits. Last edited 18.07.2006 at 03:27 by askeldaja
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ervin
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AFR kaaned LS1 mootorile (ja natuke juttu LS2 mootorist: juba parema nukaga ~ 500hp).
muide, maxil on AFR-i kaaned  |
| 18.07.2006 at 10:11 |
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askeldaja
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AFR kaaned LS1 mootorile (ja natuke juttu LS2 mootorist: juba parema nukaga ~ 500hp).
AFR on tegija tõesti omal alal.
Uuemad katsetused annavad üsna paljulubavaid numbreid ka stock töömahuga LS2 mootorile:
Dyno Results
LS2 CRATE ENGINE
AFR 205 HEADS, FAST 90MM INTAKE, 1 7/8-INCH LONG-TUBE HEADERS, COMP CAMSHAFT
RPM TQ HP RPM TQ HP
3,000 434.7 248.3 4,900 501.5 467.9
3,100 432.3 255.2 5,000 503.8 479.6
3,200 434.5 264.7 5,100 504.6 490.0
3,300 438.9 275.8 5,200 504.2 499.2
3,400 443.2 286.9 5,300 503.3 507.9
3,500 447.8 298.4 5,400 502.7 516.8
3,600 452.4 310.1 5,500 502.3 526.0
3,700 458.0 322.7 5,600 501.4 534.6
3,800 464.0 335.7 5,700 499.8 542.5
3,900 468.4 347.8 5,800 497.5 549.4
4,000 471.9 359.4 5,900 493.9 554.9
4,100 474.7 370.6 6,000 490.2 560.0
4,200 477.8 382.1 6,100 486.2 564.8
4,300 481.2 394.0 6,200 481.4 568.2
4,400 485.0 406.4 6,300 476.0 571.0
4,500 489.0 419.0 6,400 470.0 572.8
4,600 493.0 431.8 6,500 463.2 573.2
4,700 496.5 444.3 6,600 454.5 571.2
4,800 499.5 456.5 6,700 443.6 565.9
Võrdluseks, stock LS7 annab: 505 horsepower / 475 lb.-ft. torque.
Edit: täpsustus. |
| 13.02.2007 at 15:09 |
2 edits. Last edited 13.02.2007 at 15:26 by askeldaja
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askeldaja
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AFR kaaned LS1 mootorile (ja natuke juttu LS2 mootorist: juba parema nukaga ~ 500hp).
Aftermarket osade turg laieneb pidevalt ning h/c (head and cam) valdkonnas on turul päris optimistlikke komponente.
Paar populaarsemat varianti:
FLOWTECH
quote:
The infamous "HELLION"
LSX Hydraulic Roller Camshaft Kit
Includes:
"HELLION" Camshaft
Specs: 243*-247*-112*-.629"-.629"
Comp Cams 26921-16 Valve Springs
FTI Hardened Spring Locators
FTI Custom Titanium Retainers
FTI Hardened and Machined Valve Locks
Viton Valve Seals
Manton Pro-Series Pushrods
$1350 shipped!
C5 - 347 forged shortblock - AFR 205 heads - LG headers - over 500 RWHP
2005 GTO - 364 stock shortblock - ETP 225 - Kooks Headers - FAST - 513+ RWHP (üks dynovideo)
Piston to valve clearance must be verified!
quote:
The famous "StreetSweeper" LSX camshaft!
LSX Hydraulic Roller Camshaft Kit
Includes:
The popular "StreetSweeper" Camshaft
Specs: 236*-240*-111*-.630"-.610"
FTI GEN3 Dual Valve Springs
FTI Hardened Spring Locators
FTI Super Seven Ti Retainers
FTI Super Seven Valve Locks
Viton Valve Seals
FTI Pro-Series Pushrods
$925 shipped!
C5 - Stock shortblock - ETP 215 heads - LG headers - FAST 90
J&J Performance - Formato tune - 511 rwhp - 455 rwtq - PUMP GAS!
04 GTO M6 - Stock shortblock - ETP 215 heads - Kooks headers
Vette Doctors tune - 475 rwhp - 437 rwtq - Driven Daily!
BIG horsepower up top with more average power than any cam in this range.
The RESULTS don't lie, only our competition does!
Piston to valve clearance must be verified!
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| 15.04.2007 at 05:30 |
1 edit. Last edited 15.04.2007 at 05:55 by askeldaja
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