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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 05-24-2006, 01:31 AM   #21
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Originally Posted by JoeST
VigCS, sounds pretty good. Correct me if Im wrong the 80 series is a 2 chamber crossflow right? I would like to stay with the duel mufflers verses the crossflow but havent decided for sure yet.
Ya it'* a crossflow - I forgot that the 00+ SSEi'* have dual mufflers.
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Old 05-24-2006, 09:41 AM   #22
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Do one of the 3" downpipes from the right side of the engine (Rear on the FWD) to a magnaflow hi-flow catalytic convertor, to 3" stainless pipe all the way back, keep the resonator, remove the u-bend in the pipe near the front to increase flow
Eric, Bonnevilles don't have a U-bend.
you're kidding me? i could've sworn they had one. .

i feel dumber than **** now
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Old 05-24-2006, 10:55 AM   #23
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Originally Posted by erics95se
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Originally Posted by willwren
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Originally Posted by erics95se
Do one of the 3" downpipes from the right side of the engine (Rear on the FWD) to a magnaflow hi-flow catalytic convertor, to 3" stainless pipe all the way back, keep the resonator, remove the u-bend in the pipe near the front to increase flow
Eric, Bonnevilles don't have a U-bend.
you're kidding me? i could've sworn they had one. .

i feel dumber than ***^ now
that is for the W body only, we are H'*
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Old 05-24-2006, 08:28 PM   #24
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Originally Posted by JoeST
VigCS, sounds pretty good. Correct me if Im wrong the 80 series is a 2 chamber crossflow right? I would like to stay with the duel mufflers verses the crossflow but havent decided for sure yet. As for the resonator I think I will be leaving it in cause I cant stand that ricer sound. Too nice of of car to have it sounding like some POS kids toy.
I had to order a new front lower engine mount today, old ons pretty sloppy. And I also need to replace the oil pressure sending unit. My wife came to pick me up from work tonight & it was diveing back & forth from about 45 to 0 than back again. Checked the oil just incase & everythings fine there so I would assume the sender has gone bad. Damn eletric gages, never have trusted them. Can anyone point me in the right direction of the location of the sender? Ive not had much chance to look yet.

Im planning to gut out the air box tommrow as well & see what happens. Man this car has me wonting to do all kinds of things.
Wich that reminds me dose anyone make a spring set for these cars. I wouldent mind dropping it about 1 to 1 1/2 inches & going to a slightlety lower profile tire. Thinking about a 235/45-17 or mabey a 40 series max. I dont wont it to look slamed but just set it off a bit from stock.
I'm pretty sure no one makes lowering springs specifically for Bonnevilles. A few members on this site have experimented with kits designed for other cars I believe, but they may cause problems with other parts of the suspension due to an altered stance. The stock springs also have a progressive rate which means that they can't simply be cut shorter as I understand it. Maybe someone can give some more details, but to make a long story short, there are no kits I know of.
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Old 05-24-2006, 09:09 PM   #25
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Well I gutted out the air box today, the SC is much more noticeable now .When you hit the gas it has a very distinct sound. It also seames to respond a bit better, but wont know for sure until I go for a ride.

Ya the springs arnt a big thing just more of a thought. Ive lowered more than enough of my fair share of cars though so mabey its just time to ride high for once Most of the cars Ive done by cutting a couple coils & never had any problems, but Im not about to do it with this car. It will get driven by my wife more than me anyhow & she dosent have the knack for driving a lowered car. Every hole, bump, & small animal seam to find there way to her when riding low.
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