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s1 3.8L s/c questions


Marcus18

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I just found out that the motor I bought was out of a 94 bonneville.

I'm not too happy but I'll live with it. what power did they have?

what transmission did they come with? whats the difference between a s1 and s2? are any parts interchangable? I want to get about 300 at wheels so I need to know if s2 aftermarket will work with it. also is it obd1 or 2?

 

thanks

 

marcus

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I think they were 225HP.

I know the superchargers are completely different.

I don't know if anything will interchange.

I think they started out OBD-1, but I'm not sure if they stayed that way. 94 is "iffy" because that's the year many GM cars were converted to OBD-2 compliant.

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well I only have about 60 dollors in the motor and transmission and it only has 13K miles on it. how would I identify the motor? where is the serial number located? my dad said the guy said a 96 I thought 94 so I'm not sure.

 

 

 

marcus

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why get rid of it? its a great motor. The only problem is aftermarket support is somewhat non existant for the series-1

 

how much did you grab it for?

 

Series-II is a much stronger engine. its also alot smoother IMO. No significant parts are interchangable (ie supercharger) i dont think, but still a 3.8L s/c with so little KM on it is a good grab!

 

 

if ya ever want to sell it...... :wink:

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question 1: if it's a series 1 then what transmission came with it? I'm wondering if the axles off of the 4t60e I have in the car now will fit the tranny.

 

 

heres a pic of the engine you might have to copy and past them

http://images.cardomain.com/member_img_b/282000-282999/282859_5.jpg

 

heres the supercharger up close:

http://images.cardomain.com/member_img_b/282000-282999/282859_6.jpg

 

question 1: is it a series 1?

question 2: if it's a series 1 then what transmission came with it? I'm wondering if the axles off of the 4t60e I have in the car now will fit the tranny.

 

question 3: I have a wiring diagram of a 3800 s/c out of a grand prix will this wiring be the same as the wiring in the bonneville?

 

 

marcus

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thats kind of interesting. They put the power steering on the other side compared the the n/a. Do you know if it had any clearence problems with the mast.cyl? might be a good thing to know if your going to swap

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Actually all Series I S/C 3800s used the 4T60E. I believe it is also a heavy duty version as well. You're going to have to get a wiring diagram from a '94 bonneville, park avenue ultra, or riviera. If you don't want it...I'll send some cash you're way for it :D

 

Here's a little tip for you if you use it. In the '94-'95 supercharger used a bigger throttle body and coated rotors in the supercharger. They got a lot more power out of it than the '92-'93 version so they put a bigger pulley on the supercharger so it would spin slower and make the same amount of boost. The '94-'95 version had 20 more horses than the '92-'93 and it has a bigger pulley. So, get a '92-'93 pulley and put it on the '94-'95 supercharger. 8)

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well how much smaller of a pulley can you put on it? the pulley on it now is 2 1/2-3/4" I can use the axles from the current transmission on the new one right?? (the current one is a 4t60e)

I'm going to clean it out as its been sitting up for awhile. and while it's takin apart I'm going to port out anything I can.

 

all together I have 30minutes of my time and 30 minutes of my dads time and 20 dollors thats all I paid for it with 13K miles on it. the tranny fluid is like new. :twisted:

 

 

marcus

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Fuck what i said before. For 20$ you can't beat that. About the 94-95 pulley you were talking about, the 95's are series II aren't they? Then they would have a totally different supercharger correct? The 94's were still series I. I don't know just wondering.

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I believe the series II S/C 3800 didn't come out until '97.5...the N/A Series II 3800 was out in '95 though.

 

Yeah, I had a '94 M62, which is what that supercharger is on the Series I. Anyways, it's small, but the '92-'93 are even smaller.

 

 

This page confirms what I said about the pullies being different. I would check out the forum

http://www.bonnevilleclub.com/techinfo/?article=50

http://www.bonnevilleclub.com/forum/viewtopic.php?t=6848&highlight=pulley

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I see so the 95' regular 3800 was a series II and the supercharged was still a series I. All I know is that as of 94' and 95' it still made only 225 ponies but in 96' it had 240.

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They switched to the Series II L67 in '96 in the H Bodies (Bonnevilles, Olds 88's, etc..), and in '97 for all the other cars that used that engine.

 

The Series II aftermarket will not work with the Series I. The power output is 225hp, 260tq. IIRC. And it should be OBD I. The aftermarket pullies for those go all the way down to a 2.0" pulley, so you can definately go smaller. I want to say the stock pulley is 2.5", but I am not sure if that is correct.

 

As for the engine. If you only paid $20 for it, I will give you $100 or maybe even more for it if you don't want it, and that is just for the engine, you can keep the tranny if you want! If you want to sell it, let me know, I am VERY interested.

 

The Series I doesn't have very much in the world of aftermarket and it will be very hard to reach 300 at the wheels with a series I, although it is possible. With a Series II, it can be done about 10 times easier than with a Series I. I would recommend getting a series II if you want to be making that kind of power just because it will make it MUCH easier for you.

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