96' bonneville ran 16.9@83 mph - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 06-07-2006, 11:26 PM   #21
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Would the Saefoam be sucked into the engine with the design of the UIM??? The ports go from the top of the UIM and are sealed at the bottom, so I would think the Seafoam would just sit on the top of the LIM.

I've never used Seafoam on any car, but it'* probably a good idea to use it on his car. I'll see if he want'* to try it.
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Old 06-07-2006, 11:29 PM   #22
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Quote:
the 15.8 time is for the optional Supercharged motor that was availble in the SE in 96-97
No, there is no S2 L67 that runs 15.8 in the quarter unless its totally bad.
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Old 06-08-2006, 12:35 AM   #23
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Quote:
Originally Posted by BlownBuick
That'* why I think his car should be at least able to get a 16.0 to 16.2, but no way should he get a 16.9.

His front brakes are new, so they're not dragging. I'm going to check the rear drums sometime soon, but they probably aren't dragging: they're not making any noise and his car stops really good.

Just crazy thinking, but could his LIM gasket be misaligned so as to block the intake ports somewhat? I know the UIM gasket would be impossable to misalign, but what about the LIM gaskets? I know we'd never know without taking the UIM off, but has anyone ever seen anything like this happen?
You may have some good thoughts there... I the upper has never been replaced then I'd assume that the lowers are original... If they are original they have got to be shot to hell and back... These gaskets deform over time and can pertrude into the ports path..

The 96 PCM is full on OBD2 ... The 95 PCM is a bastard child... The 94-95 used a PCM that was in a transition phase of sorts... It used the OBD1 Protocall but used the OBD2 connector and codes...

95 Used one PCM, 96 Another and in 97 yet another but all of the NA'* throught 97 were attached to the 4T60-E..

You have some interesting thoughts...

Here is a vid of a members car, my old cars first gear, and then a run to the top of second... Ignore the music( I listen to almost everything )

You friends car better be running harder than my LE 165 HP 91 Bonneville... Only real mods for it are Intake, Delco Type II Ignition( same as the one on you friends bonnie, Stock for me was the weaker Magnavox system, Delco has a hotter spark) and NGK TR55 plugs.. Also keep in mind that the 4T60-E also shifts faster than the 2 cars in the Vid as they are the older THM440-T4( 4T60 ) Hydraulicly controled... In any event he should be kickinh my A$$ by the time I get to the shift out of first gear, Pay attention to the last part of the vid( ignore the music ... LMAO ) On the first vid during the day you'll hear when I roll into the throttle..

http://media.putfile.com/Gear-ratio



And then there is my 95, Gutted air box and AC Delco Rapifire 14'* with the FW2 3.06 Ratio... Everyone has seen these vids...lol... Other than the lugs and airbox everything is stock

http://media.putfile.com/BC-95SE-0-90

I know someone has to have a vid or 2 to compare

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Old 06-08-2006, 12:50 AM   #24
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Thanks for the videos.

Your 95 is how fast I expect his car to be, but it is really about as fast as your 91.
It astounds me how slow his car is. Even he gets really frusterated with his car. I can't tell you how many times he'* said "Why is my car so slow?" and really ment it. It can't even get out of its own way.

I think I'll take a video of full throttle in his car so everyone will be able to see how slow his car his. Hopefully I'll have it by tommrow, but we're going to the junkyard, so probably later in the day.

He also said the upper has never been changed, which suprised me because the car has 116K miles on it. I would think the it should be ready to blow any time now. I would change it for him, it'* just so much work. Maybe one day this summer I'll get around to it. His car really needs it. Then I'll be able to check how the lower gasket is doing.
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Old 06-08-2006, 12:57 AM   #25
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Quote:
Originally Posted by BlownBuick
Would the Saefoam be sucked into the engine with the design of the UIM??? The ports go from the top of the UIM and are sealed at the bottom, so I would think the Seafoam would just sit on the top of the LIM.

I've never used Seafoam on any car, but it'* probably a good idea to use it on his car. I'll see if he want'* to try it.

Yes it will. You will need a piece of hose that will fit over the either vac port on the TB. Follow the instructions on the can. It will most likely be difficult to keep the car running while it'* pulling in the seafoam. I think you let it suck in half the can, after that, shut it down, and let it sit for so many minute(can has the instructions). Point is, I've personally been present and assisted it'* use on a 97 L36. I just hope your friend lives in the country. Come to think of it, run a search. This has all been done before.
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Old 06-08-2006, 12:58 AM   #26
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Quote:
Originally Posted by BlownBuick
Thanks for the videos.

Your 95 is how fast I expect his car to be, but it is really about as fast ar your 91.
It astounds me how slow his car is. Even he gets really frusterated with his car. I can't tell you how many times he'* said "Why is my car so slow?" and really ment it. It can't even get out of its own way.

I think I'll take a video of full throttle in his car so everyone will be able to see how slow his car his. Hopefully I'll have it by tommrow, but we're going to the junkyard, so probably later in the day.
He should be kicking my 91'a A$$ hands down... Maybe not right off the line, but the 3800 II has legs... It takes a bit more to turn the internals of the 91, there is some chunky weight there... I will say that my old car is a good torquer... The thing shifts into OD with TCC lock... I can drop to 46 hit TCC lock again and pull a hill with no issues... Sometimes oldschool works

By chance what kind of spark plugs are in the car? Also how is his milage? Does he have a 180 T-Stat? And what kind of intake does he have? Is he using a K&N filter?

Look at the top of the intake and see if it has Dates on the top, Look on the drivebelt end and see if it has a Rochester or DelPhi sticker on it...

When you have the time get back to us and let us know what you found

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Old 06-08-2006, 01:27 AM   #27
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Quote:
Originally Posted by MyLittleBlackBird
Yes it will. You will need a piece of hose that will fit over the either vac port on the TB. Follow the instructions on the can. It will most likely be difficult to keep the car running while it'* pulling in the seafoam. I think you let it suck in half the can, after that, shut it down, and let it sit for so many minute(can has the instructions). Point is, I've personally been present and assisted it'* use on a 97 L36. I just hope your friend lives in the country. Come to think of it, run a search. This has all been done before.
He lives 10 minutes away from me on a bad traffic day. The Seafoam sounds like a good project for this weekend, as this is the last week before school lets out for the summer.

I just wanted to make sure someone'* done it and had it work for them. I don't want to load his engine with crap that won't come out. Thanks for putting my concerns to rest.
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Old 06-08-2006, 01:58 AM   #28
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http://www.bonnevilleclub.com/forum/...=17556&start=0

There. Todd did it on his car, he'* got a blower, but it'* the same concept. Ben and I did it on his car, he'* N/A. Everything happened the same as Todd'* car.

The only thing I am uncertain of is the hose diameter for the vac line. I'm sure you can figure that out or make something up.


I should also say that Ben'* car didn't smoke THAT much, but it still smoked a good amount.
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Old 06-10-2006, 08:28 PM   #29
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any new info?
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Old 06-10-2006, 10:04 PM   #30
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I have driven a handfull of 3800 Series 2 NA cars and all of them even with the slow 2.84 axle have been very peppy cars. That engine must be FULL of sludge carbon. Get a can of GM top engine cleaner and get it in the oil through the pcv and run it for about 10 min and do an immediate oil change. BTW- it will smoke like crazy while the cleaner is at work.
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