Suggestions for mods for 1993 non-supercharged Bonneville SE - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-05-2007, 12:20 AM   #1
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Default Suggestions for mods for 1993 non-supercharged Bonneville SE

I am new here and I am aquiring a 1993 Bonneville SE on Friday.
I am looking for help on knowing what the best mods for power
@ or under $1000USD, short of a supercharger of turbo
Thx
For all the help in Adv.
btw does any one know the Amp rating on the stock altenator
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Old 04-05-2007, 12:43 AM   #2
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Stock alternator on your car is 105 amps.

Techinfo is the best place to start for Performance mods.
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Old 04-05-2007, 01:16 AM   #3
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Depending on miles, your catalytic converter may be holding you back some, consider a high-flow replacement.

After you've got a good tune-up/running in good order, air intake mods are the first mod by most people.

If you're looking for a good alternator upgrade, the 140 amp from the SSEi'* bolts right in, and will be more reliable than another 105 in there, for the output it'* relatively affordable around $130.

After a throttle body you're looking at digging into the engine P&Ping everything you can, and maybe making some ported exhaust manifolds. No one has put a cam in the L27 engine yet, or high ratio rockers.
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Old 04-05-2007, 01:45 AM   #4
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Thx for the replies thus far more info car and intended use below.
well it has low miles for the year 77k and I plan on doing a sound system mod so I am looking for around a 200AMP alt. to support it; it will consist of a pioneer head unit with a seperate 4 channel 700 watt rms @ 4 ohm amp for the door spearkers and my 2k watt rms @ 1ohm amp for the two 15'*, btw do you have any good links for an intake, and exhuast for the '93 bonne I am having a hard timee finding these parts of which you speak.
Also my previous car was a 2002 Mustang V6.
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Old 04-05-2007, 07:38 AM   #5
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On the alternator there are two considerations you have available.

An SSE/SSEi alternator that is 140 amp, or a Mr. Alternator model that I think he builds to your specs.
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Old 04-05-2007, 07:45 AM   #6
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Performance wise, start with a good, well designed Cold air intake. Just throwing a intake on does not make it a cold air intake, what you will need to do is fab up a good intake to get as close to the driver'* side fender as possible, then make a good shield/box to guard the filter from sucking in warm/hot air. Next thing you may want to consider is a magnaflow high flow cat, then maybe a muffler for sound, as the stock one cannot be outflowed. Then from there on it is up to you on what you want to do.
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Old 04-05-2007, 09:49 AM   #7
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So considering I have place to custom steel pipe bent.
I think this will do but correct me if I am wrong. An 3 inch intake with a ceramic heat shield and heat wrap on the pipe, an the filter placed in lower left front corner with a bumper air scoop should work well correct, And for the exhaust I was considering a set of custom headers and making it dual exhaust with an x-pipe system and glass pack mufflers. as far as the Alt I will try Mr. Alternator
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Old 04-05-2007, 10:48 AM   #8
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You probably won't like the sound of the glasspacks, and I would be very careful to open the exhaust. As was already mentioned, aside from a high flow cat, the rest of the exhaust is perfect. If you open the exhaust any more, you'll lose torque, which is the power you're looking for on these cars.
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Old 04-05-2007, 10:55 AM   #9
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Quote:
Originally Posted by soundexcess
So considering I have place to custom steel pipe bent.
I think this will do but correct me if I am wrong. An 3 inch intake with a ceramic heat shield and heat wrap on the pipe, an the filter placed in lower left front corner with a bumper air scoop should work well correct, And for the exhaust I was considering a set of custom headers and making it dual exhaust with an x-pipe system and glass pack mufflers. as far as the Alt I will try Mr. Alternator
Hold on there......

Read this:

http://www.bonnevilleclub.com/forum/...sulation+guide

What you propose with your intake is the worst thing you could do. And don't use steel.
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Old 04-05-2007, 11:28 AM   #10
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From reading I gather that I should use Aluminum for the intake with Thermo Tec reflective non insulating cover also this is where I wanted to position the intake.
but let me know if this a bad place or should it be just behind the headlight.
also would using 160 degree thermostat help even more than 180 degree one
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