Skip the auto shop - Our mechanics make house calls

Q: Modifying 1999 Buick Regal Grand Sport

asked by on

I have a 99regal and i have put a dog load of money in it. The flywheel broke so i am replacing it. While i have my engine out what can i do to improve performance i have 180 degree tstat upgraded coil packs. Best plugs and wires. Supercharger still nothing in return for me. Id like to save money beefing it up but at the same time i know theres alot you can do to these cars just little things and i want to know what they are jts a 1999buick regal grand sport

Hi there - if you already have the supercharged 3.8L GS engine, there is a not whole lot that can practically be done. A true "cold-air" kit that gets you intake air from outside the engine compartment, with a low-resistance air filter will help a bit. A shift kit that firms up shifts (B&M, TCI, et al) might be a consideration - just remember the axles and CV joints can pay the price for this. Torque-steer, given that you’re front-wheel drive, will be a limitation. Firmer engine mounts can help that a bit, but it still physics you’re fighting. Just a few ideas - check the Buick Regal forums on the Internet for other suggestions from fellow owners. Good luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Modifying 1999 Buick Regal Grand Sport

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Why is my car loud at idle and when accelerating

Generally loud "noise", especially on acceleration, is due to exhaust system leaks or internal muffler (e.g., baffle) failures. The ticking noise is more likely coming from the valve train and not the EGR valve. The OBD-II diagnostic code that "refers"...

Q: Buick not shifting.

It is highly likely that you have a TH200-4R transmission in your Regal. The vacuum line to the modulator and the adjustment of the throttle cable can be checked. These will have the ability to prevent upshifts and downshifts of...

Q: Jeep over heats very quickly

If you replaced the radiator and thermostat and water pump is good then you either have a cooling fan not working the way it should or the head gasket is blown. Run the engine and check the cooling system for...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...