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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 02-10-2007, 03:29 PM   #1
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does anybody know if SLP or any other companies make any parts 4 my car,its a 1993 pontiac bonneville SSEi
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Old 02-10-2007, 03:49 PM   #2
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SLP only supports the 97 and newer Grand Prix'* and Series 2 Bonnevilles, just like most local vendors.

Your search for parts will be a little tougher, but not impossible. There is no good 'one-stop' shop for Series 1 L67'*, but everything available for the S2 is available for the S1.

Your best bet at this point is to tell us what kind of performance you're after, and give us your REALISTIC budget. We can make suggestions from there.
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Old 02-10-2007, 04:20 PM   #3
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Well im looking 4 power at low rpms and money is ot an issue, but i was looking 4 headers and getting bigger injectors,adjustable fuel press regulator,fuel lines and rail,fuel pump and an aftermarket ignition system .if anybody did something to there cars and the mods worked,tell me so i can do the mods i want to do.
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Old 02-10-2007, 04:28 PM   #4
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Quote:
Originally Posted by SSEi93
Well all im looking is 4 power at low rpms and money is ot an issue, but i was looking 4 headers and getting bigger injectors,adjustable fuel press regulator,fuel lines and rail,fuel pump and an aftermarket ignition system .if anybody do something to there cars and the mods worked,tell me so i can do the mods i want to do.
Headers? Go custom. Nobody makes them. We suggest pulling your EM'*, repairing the cracks (you have them), and welding the outside of the flange so you can port out the OEM weld from the inside.

Bigger injectors? You won't gain from them. They're managed by the PCM and you'll have to add alot more power to outflow the stock injectors. I'm running more power than any non-nitrous Series 1 on this Forum, and I'm still on stock injectors. Besides, with bigger injectors you'll need a custom PCM burn, and you'll need to do alot, and KNOW alot before you can even think about doing that. Nobody on this Forum is running a custom PCM on a 92-95 SSEi from the only known source for them.

Adjustable regulator won't get you anything for a long time either. That'* something you do when you develop enough power to outflow the system, and you'll need a bigger fuel pump to go with it. AFPR is a tuning device, not a power-adder.

You won't gain from an aftermarket ignition system either. I think only 1 of the top-25 Bonnevilles on this Forum is running one. The stock ignition will carry you quite far in Performance.

My suggestions for you:
1. Get a scantool. It'* required.
2. Check your fuel pressure. It'* required.
3. After 1 and 2, scan for KR on a warm/hot day with the stock pulley.
4. Add a custom intake (shielded from the engine bay) or a K&N drop in filter witha ported airbox.
5. High-flow cat. Especially if yours is original.
6. 2.2 or 2.3" supercharger pulley if your fuel pressure and KR scans are good.
7. Jet Stage 2 PCM.
8. Start saving for a transmission.

Once you've added the 30hp or so listed above, and you want more, you'll be in a good position to push farther. You have to do this in steps to be able to resolve tuning issues in between mods.
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Old 02-10-2007, 04:42 PM   #5
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Look thanks,but one ting about the cat,a aftermarket one is just why u ask.because all it is,is a bigger inlet and outlet and the comes inside are the same.plus if you get a bigger cat for example a 3 inch,you need to get 3 inch tubbing from the EM back so you wont loose HP and you can burn your hc and co'* good and get all the nox burnt in the cat.look in order for me to do mods i need to start from the back of the car and move my self foward.the exhaust system should be the 1st hting in my list and the last thing should be my electrical things.but like i said im not disrespecting you,its that i know what im talking about and all i needed is an oppinion.Oh and i was sticking to the cat sittuation for a long time cause im worried about that cause im from california and you know how ther laws are here. but thanks i will keep your mods in mind.
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Old 02-10-2007, 04:50 PM   #6
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Quote:
Originally Posted by SSEi93
in order for me to do mods i need to start from the back of the car and move my self foward.the exhaust system should be the 1st hting in my list
Not true at all. If you start at the back, ie mufflers, you'll be wasting your money if you're looking for improved performance. START on the intake, then manifolds, which WILL have cracks. If you don't want an aftermarket cat for whatever reason, at least get a new OEM one.
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Old 02-10-2007, 04:50 PM   #7
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You asked for advice, and I gave advice based on what we've proven to work in the last 5 years on this Forum.

Your knowledge of high-flow cats is a little off. The diameter of the inlet and outlet are the same. The grid inside has 10% greater surface area.
You will gain from it, and you need to if you want to be able to flow correctly for other mods, PARTICULARLY if you have an older cat on your car. They lose flow with age.

None of the things on your list are practical or actual power-adders. You have a LONG way to go before any of them will benefit you.

The quickest daily-driven Bonneville on this forum is running in the 12'* on the quarter. With stock ignition. Think about that.

There are only half a dozen cars here running an AFPR at most. And they're pretty well-modded cars.

Very few cars on this Forum have reached the point where they need bigger injectors. Yours won't be one of them for quite some time. My toy is still on stock 29lb injectors. I'm not sure where you got your ideas, but we'd be happy to help you do this the right way and not waste your money.

Ask and we'll answer. Your choice if you decide to follow our well-founded advice. After all, we've been doing this for 5 years on this Forum, and know what works and what doesn't on these cars.
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Old 02-10-2007, 04:54 PM   #8
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Who said anything about a bigger cat?

The majority of us with an after market cat stayed with the original pipe size.. On my 95 I am 2.5 in 2.5 out and then 2.25 into the Resonator and 2.25 out right to the Muffy( still stock )... On a side note my 91 Bonneville will get a new Cat and it also is the stock pipe size 2.25 in and 2.25 out...

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Old 02-10-2007, 05:02 PM   #9
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thanks.i know what your taking about.and my "Red Eyes" is also a dailly driver.all i do is go to school and back.i want my car to do 12'*.all i have in my car is a custom cold air intake and a 80 series flowmaster,and autolite doubble platnum plugs,but i found out at school that platnum or irridium plugs are enemies with boosted or juiced engines.i was told at school to use stock plugs on my "Red Eyes" cause i will blow a head gasket and its robbing me HP,plus my engine will run hotter.
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Old 02-10-2007, 05:06 PM   #10
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Start with NGK TR55'*...

Blowing a head gasket on a 3800 is extremely rare, and 99% of the time if this does happen the engine was ran very very hot..


And running 12'*... Chances are unless you have $$$$ to sink into the engine you aren't going to see 12'*

And to get there you will also need a $2500-$3000 Trans rebuild with HD parts

Your stock trans will not hold up

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