Best Performance:
9.88 @ 138.749mph - 200cc CNC LT1's (11.7cr), 7000 1st-2nd shift, 7200 2-3 shift, 714Xrpm traps
10.04 @ 136.5mph - 190cc CNC LT1's (12.1cr), Stock GM PCM/MAF, on limiter 100-150ft before traps!
How does Rick do that?!
Here's a rundown of the modifications on Rick's bolt-on 94 Trans-Am. It's a fantastic example of what a highly efficient topend is capable of in a properly set up car. The only "trick" here is a competent and competitive driver willing to put in the necessary seat-time to dial-in the combination detailed below. To be 100% clear, performance like this is duplicable, but don't expect to throw the parts on your car and run these numbers right off the trailer. Again, this example is put forth to verify that the potential of our LT1 Production Casting based offerings is second to none. Any setup, from street to full race, will take significant time on the track to reach it's potential!
What this car is not...
This is NOT a superstock etc. style suspended car - it's built with off the shelf bolt-on suspension parts & runs a 9.5" slick in stock wheel wells. This is NOT a one-off race engine built with ultra high dollar parts. It is a 4.030" x 3.750" 383cid LT1 with a 50lb Howards crank (Std. Journals), Steel 6" Howards Rods, and a CP shelf piston w/ lateral gas ports. Either ourselves or Rick can provide an identical longblock to any serious competitor or enthusiast. This is NOT a one-off topend! Rick has our CNC LT1's with the exact same machinework & valves as detailed on the products page with an upgrade to a solid roller spring & 1.6/1.55 ratio shaft rockers. The manifold is our Street/Strip LT1 offering with a 58mm Throttlebody & NO WELDING, relocation of runners, etc. There is NO grinding or polishing of any kind on Rick's heads. Our CNC'd port and CNC'd valvejobs are consistently located so precisely that it is unnecessary to perform any hand blending.
We ONLY race the parts we sell to continually refine & rigorously test our offerings.
Dynos - Stock PCM w/ 190cc, StkPCM w/ 200cc & Stock PCM vs. Holley
Video Clips:
Click HERE to view Rick's best 9.97@138.749 run!
Click HERE to check out a dyno pull @ 519rwhp SAE.
Click HERE for a vid of a 9.98@138 run at Napierville.
Click HERE for a short launch & 1/8th (6.32, best 6.30) clip.
Click HERE to view another 10.1X burnout & run at Napierville.
Click HERE for a clip of Rick running 10.11's in 2000ft Density Altitude
Click HERE for a side-view of a 10.01@138.6 run against a 7.45et dragster.
Click HERE to check out Rick's engine up close at idle. Full 19mb version HERE
Updates:
11/08/06 - Added mufflers for GMHTP Shootout, trap down a few mph, 10.0's all day. Second Quickest NA car! Quickest NA was a 9.83 w/ 434cid C5-R headed Solid Roller TA @ 3350lb. A good day for the venerable LT1!
10/08/06 - Made four 9sec passes at over 138mph in 120-500ft DA. Best of 9.97@138.749mph!
10/07/06 - Weight & 1-7/8" header calmed 60' to 1.4X.. on PCM's rev limiter well before 1/4. Going to Holley Commander to stay off limiter at traps & alleviate topend misfire w/ GM PCM. Will alternate PCM's in future w/ taller gear and/or tire. Best GM LT1 PCM performance to date 10.04@136.5mph with older 190cc CNC LT1 Head.
09/30/06 - New setup checked out on Dyno, gained 27rwhp despite loss of compression!
09/29/06 - 60ft off from unweighting rears on bars & chattering tires, still 10.1's in 2kft but at 137mph. Second gear launches went 10.30's.
09/22/06 - Car running w/ lower CR. Too much mid-range TQ, hitting the bars so hard rears are leaving ground & spinning. Broke 7 teeth off 9" ring gear.
09/16/06 - Decided to save time with winter approaching & sent up a set of 200cc CNC'd cores.
07/14/06 - Block cracked from bolt hole into cyl 3. Swapping components to spare block.
06/25/06 - Car lost some 60ft, losing cyl pressure into cooling system.
05/12/06 - Consistent 10.1X's @ 134-135mph in 1800-2100ft DA
04/29/06 - Added GZ Vacuum pump - gained 8-10rwhp peak.
04/18/06 - Went to ATI converter - lost 30rwhp from previous Vigilante converter
Modifications
1994 Trans-Am
3440-3470lb Raceweight
Full Interior, No Stereo, Power Windows intact!
S&W 12-Point Roll-Cage
383cid LT1 Shortblock - CP Pistons, Std journal sizes & Std weight crank
11.6:1 Static Compression - Capable of running Pump Fuel!
Ai 200cc CNC'd LT1's - NO ADDITIONAL CLEANUP WORK
NO lightweight valves, NO trick 'race only' valvejobs!
Ai $325 'Street/Strip' LT1 intake - NO Welding!
Ferrea 6000 Series 2.00/1.560 valves
Ai Roller cam - .646/.630" valve lift
Ai Roller Springs & Ti Retainers
1.6/1.55 Ratio Shaft Rockers
Self (Rick) Tuned GM LT1 PCM
Still MAF based utilizing stock GM MAF!
Hedeman 1-3/4" Long Tube Headers
And/Or Lemmons 1-7/8" Step LT's
Meziere Electric LT1 H2O pump
Dynaspark Billet Opti
GZ Motorsports Vacuum Pump
140A Alternator (No PSteering/AC)
Titan Sportsman Oil Pump
GM 4l60e Automatic Transmission
ATI 4000 Stall Converter - 2000rpm foot-brake launches
Moser 9" Rear End, 4.30 Gearing
BMR Xtreme Duty Chrome Moly Torque Arm
BMR Xtreme Duty Antiroll bar
BMR Chrome Moly Control Arms
BMR Chrome Moly Panhard Rod
BMR Tubular K-Member
BMR tubular front upper and lower A-arms
SLP Subframe Connectors
QA1 Front Shocks
AFCO Rear Shocks
Autometer Logger
© 2006 Advanced
Induction
|
