Some more numbers WITH chevy aftermarket heads if it helps. I am seeing mostly high 300's to 405 or so rwhp with stock heads and c. and bolt ons.
Intakes look like they are already
super efficient so in many cases Cam might as well = C/I. As to the TQ? Just FY- looks like Cubic Inches argument still wins every time:
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MTI Stealth II cam+Stage II LS6 heads makes
422.7 RWHP!
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O2 SS A4
Mac Mid w/ ORP
Vig 3000
MTI S2 Heads w/ X1 Cam
100 shot
489 RWHP
419 RWTQ
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98 t/a a4 3.23
294rwhp
327rwtq
just an mti lid and free mods at the time.
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02 Z -M6
lid and catback
324hp / 335tq
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'98 WS6 A4
K&N Filter
G2 Lid
Z06 85mm MAF
Smooth Bellow
Bauer Racing Ported TB
TB bypass Mod
LS6 Intake
Hooker Headers
2.5" True Duals w/X-pipe, Bullet mufflers
Tuned w/LS1 Edit @ AMS
(Unlocked)
347 RWHP
361 RWTQ
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02 WS6 m6
lid, SLP bellows, LM, Y-pipe
SAE:
327rwhp
360rwtq
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02 M6 Z28:
Stock: 292rwhp 314rwtq
Lid and LM: 325rwhp 336rwtq
Lid, LM, FLP + heavy 315's on:
348rwhp 363rwtq
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01 WS6 - M6
rwhp - 358.9
rwtq - 370.0
mods:
-
KOOKS LT headers
w/ random tech 700000 series cats
-Loudmouth catback
-MTI Lid w/K&N
-BG Ram Air (no affect on dyno #'s)
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98 Z28 A4
321 rhp @5600rpm
334 rwt @4600rpm
w/55000 on OD
during the summer
12.5 AF, Stock 3.23 rear
and stock 16 5 spokes
MTI LID, K&N Filter,
160 Thermo, Hooker Muffler only,
stock catback piping,
Hooker LT and ORY Pipe.
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00 WS6 M6
Mods: SLP dual/dual
Everything else stock, with paper filter
320rwhp 333rwtq
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stock automatic 99 Z:
288hp/301tq
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2000 SS
Comp Cam 222/222 563/563 114 Springs/Pushrods
SLP long tubes
High flow cats
3 inch Y pipe and exhaust
Granatelli Mass Air
NGK plugs
MSD hot wires
In line fuel pump 255
42 1/2 # Injectors Precision Industries
Trans cooler a must
ATI Pro Charger W/dual Intercoolers
501 Rear Wheel
476 Rear wheel torque
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Colonel09-18-2003, 04:36 PM
That was a pickup of 71.6 RWHP at the peaks and alot more than that in other places (after the stock cam's peak.) Not bad for an A4 car with a cam that prompted me to accuse them of reinstalling the stock cam in my car when I first heard it (we left the idle where I had it with the stock cam at 675 RPM.) :nod:
For those of you who may think that a 116 LSA cam can't make TQ, this cam absolutely KILLED the stock cam all the way across the chart. It made 395 ft-lbs of TQ with a locked converter. The stock TQ was 360.
Here are some more details.
The car has the standard bolt-ons including QTP 1 3/4" headers. No bolt-ons were added with the heads/cam package.
The 422 RWHP was made through the QTP cuttout. With the cuttout closed and running through the stock exhaust it made 395.5 RWHP. The stock muffler is REALLY restrictive at this power level and the reverse split seems to really like the cuttout.
All runs were made with ALL original accessories intact. NO short belt. NO electric water pump. The air filter WAS in place. The converter was locked. The stock rockers and lifters were re-used.
Cam specs are 224/220 .581/.581 116 LSA
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"went to the dyno saturday to tune my friend's car (2002 WS6), numbers before were 419 rwhp and 379 rwtq. mods were,FLP LTs,custom 3 inch Y-pipe ASP pulley, ported TB, LS6 MAF, TR230 cam, and of course tuning. this is all going through a moser 12 bolt with 4.10 gears.
numbers after the absolute heads were 453 rwhp, and 402 TQ with the dual cutouts closed and 457rwhp and 407 rwtq with them open. "
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For fun, forget just heads, lets add a STROKER:
Mods and car..
99 FRC Corvette M6
382 Lunati Stroker Kit
X1 Cam 112 LSA
Stage 2 Heads w 2.02 1.57 Valves
LS6 Intake
Katech Throttle Body
ASP Pulley
FLP Longtubes w/ cats
B&B PRT Exhaust
Blackwing CAI
LS1 Edit Tuning
RWHP 455 @ 6400 RPMS
RWTQ 440 @ 4800 RPMS
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