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Top Swap Info and Faqs, Also lots of 3800 Info

guimond47 said:
this is what i have to mess with . i have a 2000 gt and i wanna put a 97 gtp supercharge on it (top swap).
[...]
anyone have pointers. no one wants to help my situation and i posted quite a few topics. let me know guys... thanks
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I realize I'm relatively new here. So maybe I'm out of line. But please look at the two pieces of your hijack - I mean, "comment" which I have helpfully bolded for you. Then consider if possibly these two things might be related.
 


sorry if this was answered. i have read 7 pages straight. that was tiring. okay. i got a hell of a deal on an m90 alone. next is the remaining parts. first off who knows of an intake base that will adapt the m90 to the l36 heads? another thing, someone said something about using the l36 balancer? possible? i didnt see extra grooves for the s/c. who has a belt routing diagram for the s/c motor? and computer tuning. im not worried about emissions. can i just use a gtp computer on my car? the zzp tuned ones wont work. plus i dont believe i have the hd trans, my dad said i do based on the axle nut sizes? they are larger? i dunno. but some guy wants 300 to tune my comp?!?!? thats the price of a tuner!!! if i got a gtp comp would it be cheaper to program the vin? or a way to make it work? something. im on a budget looking to do this as cheap as possible but i realize this will cost me $$$X$$$$. and if i grab a s/c fuel pump are the fuel lines at the pump plug and playable, or do i have to run new lines?
yah i know lots of questions, this prolly aint all of em neither lol. remember i read 7 pages to please dont be an A$$ to me if i missed something.
thank you
 
Sorry if this was also answered. Can I do a top swap on my 95 Park Avenue? Its a series 2 3800 and all that crap. Not worried about emissions or anything. I'm new to all the computer stuff. I work at a junkyard so I can get basically whatever I want for free.
 
Bio248 said:
you can, but your transmission isnt going to take the boost well.
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What do I have to change as far as the ECU/Harness and everything goes. I don't know if its OBDII or I. I've never had to check lol. It should be one though. I can always get another trans, we have quite a few GTPs and GS's.
 
zzp sells a lower intake to mate m90 with NA heads, its a meh set up at best. grabbing a L67 balencer, idlers heads and lower intake would be a better route.

96 and up is obdII, 95 could possibly be. i would grab a HD trans and computer and wiring harness for cheap if you can. the HD trans does have a shorter passenger side axle due to bigger diff.
 


redlinepontiac said:
zzp sells a lower intake to mate m90 with NA heads, its a meh set up at best. grabbing a L67 balencer, idlers heads and lower intake would be a better route.

96 and up is obdII, 95 could possibly be. i would grab a HD trans and computer and wiring harness for cheap if you can. the HD trans does have a shorter passenger side axle due to bigger diff.
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I will be using all junkyard parts. So say I grab parts from a 00 GTP should I get the harness and ECU from the same car? And would have any trouble if my car is OBDI or OBDII using a newer style ECU? I know it will have to be tuned either way.
 
Anyone tell me if the top swap instructions are basically the same for a 3800 series 3? I noticed that mostly the instructions were talking about a series 2
 
joshuaandrew92 said:
Anyone tell me if the top swap instructions are basically the same for a 3800 series 3? I noticed that mostly the instructions were talking about a series 2
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Pretty much.

Depending on the year of the car, a few things are different.

02PrixGT said:
btw topswaps are hard on trannys just sayin
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Unless you mod further, 250 CHP will do just as much damage as 200 CHP.

It depends entirely on the driver.
 


I'm going L26 and my only real question is is worth it to change out the timing chain for an L67/L32 one? If I'm not mistaken the chain for boosted motors is set to line up 2* retarded compared to the NA models and thats better for a boosted application. Only other thought was if the timing cover is the same for a direct swap for L67 accessories.
 
For some reason 2* retarded stuck out in my head. Either way is it worth it really trading out that chain for the boosted one?
 


Stock valvetrain or what?

Because if you dont change that, you'll be highly disappoint.

Even with rockers and an intercooler I think the cars lacking.

Then again, I have issues.
 
I'll have 1.84 YT rockers for valvetrain, won't have springs yet. I'm not going to go IC, just sticking with the stock pulley.
 
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