Originally Posted by 1993 SLE
1. Airbags are not available for our cars, except for the ELC shocks that can be adapted to the car
2. A 1.9 is really gonna be tough to acheive with a NA......
3. A intake REALLY wakes up the NA motor.....i dont know if you have seen but there is that thing called a accordian tube, and the airbox is big, but has many bends....ya that interrupts laminar flow which is what is desired by our cars....hense the MAF Screen
Why would you say not to put a performance exhaust on??? A high flow cat will really wake up the car and not loose any performance or low end torque...and a Mangaflow will provide some added perfromance over other aftermarket and stock mufflers (these are verified by flow data)
and a higher stall really makes no difference for a stock car..... i can see it on a modded car but not in the stock
and there is more than a .1 difference in teh suggested setups
Hi. Thanks for your opinions.
1.) Unless AirLift discontinued them, I used AirLift airbags on my dad'* 1996. Order for $60 through Summit. The car was a non computer ride controlled car. Read High Performance Pontiac 10/97 or I can email you a copy of my drag trials with it.
2.) Even though roots-blown setups offer crazy low-end compared to NA counterparts, dyno results show better 2000 rpm torque for the NA vs. the L67. I guess the lower CR hurts output down there or timing is intentionally pulled back at low rpms for the blown non-IC'd L67. Part of what I said doesn't matter since the Bonnes stall higher than 2k rpms and the L67 Bonnes as high as 3200 rpm indicated. Still in the process of achieving the stall rpms, the NA car should do well. I drove an SLE with and without the blower motor and both lit up its tires with ease enough to suggest 2.10 60 foot with good tack and for NA 1.9x sec. 60 foot with a higher stall and traction.
3.) I can't prove you wrong, but the airbox volume and the plumbing on the NA Bonnevilles are identical to the SC'd Bonnies. It seems very generous for a 205hp engine. The same goes for the exhaust. Maybe with higher stall, a muffler swap only would be OK. I know hardcore drag racers who baselined LT1 auto f-bodies to death and added a cat-back vs. a muffler only and got better results with muffler only with pretty much all else being stock. Borla for some years recommended against the 3" cat-back system on auto LT1 f-bodies kept otherwise stock and recommended their rear section system only. Now the Bonne NA has a low stall (as opposed to the high stall blower model). I'm certain the universal rule for decently optimised stock setups will lose low-end with a big exhaust measurable at least by hundredths in 60' and translated to 0.1 second at the quarter.
Typical stock NA Bonnie at sea-level, good air: 15.9s to 16.1s @ 88-89 mph. 2.15s-2.3s 60'
Fearless prediction of a Bonnie with normal radials and intake/exhaust mods: 16.0s to 16.4s @ 88-90 mph (maybe half mph improvement but loss in e.t.). 2.25 to 2.35 * 60'.
Prediction using my proposed setup with drag radials, higher stall, good tune, air bags: 14.9 to 15.1s @ 89 to 91 mph. 1.9xs 60'. Note mph is similar due to no real power increase but slightly higher to do harder launch.