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View Full Version : 3.4 to S/C 3.8 Swap


HeyMelo27
07-27-2004, 09:27 PM
I was very intrigued about the forum talking about the RSM Supercharger and cam to realize that you can only take the 3.4 SO FAR when it comes to whooping F-Bodies like EVO's and such. You think a s/c 3.8 would have much better oppurtunity? id rather start off modding a 240hp or so car than a 175hp car.

I am seriously considering a swap, so would a G/A Tranny support or be compatible with a s/c 3.8?

TA^Guy
07-27-2004, 09:35 PM
A 3.8 is a FAR better motor than the 3.4. Low 13s and high 12s are pretty easy these days with a SC 3800 Series II.

As for the swap, do a search, its not as easy as you may think.

Colin
07-27-2004, 09:36 PM
NO You'd need a 4T65E

HeyMelo27
07-27-2004, 09:40 PM
now heres the real question. Where the best place to get the and and tranny?. Junk yard? online?

any input is good especially from someone whos done it.

AMRAAM4
07-27-2004, 10:03 PM
Unless you have crazy skills, you're looking at a cost of probably $7-9000 for the whole kit and kabootle.

Oh yeah, don't forget you need the 3800SC ECU and entire wiring harness systems ;)

HeyMelo27
07-27-2004, 10:06 PM
thanks for the estimate...im sure i can get the whole thing for under 5g with harnesses and crap. It would be worth it since the 3.8 makes about 240hp and the s/c g/a would make like 250hp. the supercharger is what 4700?

AMRAAM4
07-27-2004, 10:09 PM
Originally posted by HeyMelo27
thanks for the estimate...im sure i can get the whole thing for under 5g with harnesses and crap. It would be worth it since the 3.8 makes about 240hp and the s/c g/a would make like 250hp. the supercharger is what 4700?

Are you forgetting all the custom work?

HeyMelo27
07-27-2004, 10:11 PM
True that, but its all in the future i guess. i jsut wanna get a shit load of info before i finalize anything. my 3.4 only has 9,100 miles---no misprint.

AMRAAM4
07-27-2004, 10:13 PM
Ohhhhhh, so now it comes out. So this is like the younger people who come on the RX7 boards and say they are going to buy one...in a couple years when they have more money.

Colin
07-27-2004, 10:17 PM
Originally posted by HeyMelo27
thanks for the estimate...im sure i can get the whole thing for under 5g with harnesses and crap. You need more than just an engine , custom halfshafts / cooling system / fuel system / trans ecu / engine mounts / exhaust . Be sure to post some pics when it's finished . ;)

Xidion
07-27-2004, 10:26 PM
if you are talking about getting a 3.8 SC from a gand prix GTP then you might as well get the Intense Tranny that they make for grand prixs to.

Duster
07-27-2004, 11:20 PM
Originally posted by AMRAAM4
Ohhhhhh, so now it comes out. So this is like the younger people who come on the RX7 boards and say they are going to buy one...in a couple years when they have more money.

Whats the point in that he's researching his plan man why do u need such an a$$?
I plan on doing a swap from a quad 4 to a v6 3400 motor this winter when i store my car i got parts all setup and things are already set into motion for the rest of them.

As for were to get parts i say junkyards if your planning on getting stuff cheap. And start now get your stuff gathered slowly so then u dont need to hit your pocket book hard with a lump some for everything.

litdevil316
07-28-2004, 02:51 AM
Duster, thank you. some one agrees with me. AMRAAM might be a good guy and trying to help somewhat, but he needs to tune it down some and dont be so harsh man.

3400 to 3800sc can be done, but it gonna be alot of custom work. and money will be flowing.... away from ya. its a good plan, and i hope you do get it to work. give 95GT a run for his money and his 3100 - 3400 swap.

voyager
07-28-2004, 03:06 AM
there's a shop in chicago that was offering to swap 3800's into berettas for ~$4000. one in atlanta too. they already have the mounts made up, so it's cheaper. that was a year or two ago, when the beretta community was going nuts over the swap. can't be much different for a GA, if they will still do it..

that was just the motor, wiring and tuning on a 4t60 - equipped car. you would still want suspension work, bigger brakes (?) and some kind of reinforcement for the frame. go buy a whole wrecked gtp and bake alot of brownies for your mech. =D

12's would be possible IF you could get traction. go look up "3800 swap" on beretta.net and 60degreev6.com

AMRAAM4
07-28-2004, 06:44 AM
Originally posted by litdevil316
Duster, thank you. some one agrees with me. AMRAAM might be a good guy and trying to help somewhat, but he needs to tune it down some and dont be so harsh man.

So basically you just want me to sugarcoat things so peoples little feelings don't get hurt. Come on people, it's the internet for crying out loud :roll2: And the only people who it seems to bother I have noticed are the one's who are generally the dreamers and arguers.

Annnnnnnyway, don't forget to add the custom cowl hood you are going to need once this engine is in place. There is another $800-1000 for something to look good and not bondo-rific

Duster
07-28-2004, 12:54 PM
I found out how much a 3800 motor runs at my local junkers they wanted 500 for it and it only had about 39,000. Thats would be u taking it out! Them doing i think they would charge another hundred.

Originally posted by AMRAAM4
So basically you just want me to sugarcoat things so peoples little feelings don't get hurt. Come on people, it's the internet for crying out loud :roll2: And the only people who it seems to bother I have noticed are the one's who are generally the dreamers and arguers.

I am not a dreamer nor a arguer! I dont want you to sugercoat anything, i think it would better if you dont have anything helpful to add then dont try to post somthing that has nothing to do with the post! If he is thinking about swapping then more power to him!! Im doing a swap on my ga that hasnt been done yet to my knowledge! So you can call me a dreamer for it or you can call me a arguer!!But itsa nice to try new shit or dream up ideas! Kind like you dreaming your cars fast:D

Colin
07-28-2004, 02:15 PM
Originally posted by Duster
I found out how much a 3800 motor runs at my local junkers they wanted 500 for it and it only had about 39,000. Thats would be u taking it out! Them doing i think they would charge another hundred. Again your talking just the engine , nothing else . Not a supercharged engine like was being discussed just a run of the mill 3800 .

voyager
07-28-2004, 04:10 PM
i don't know that you would need a cowl hood.. the supercharger doesn't go on top of the manifold or anything :D

..not that it would be any fun to work on once it was in there. tight fit am sure.

Duster
07-28-2004, 11:25 PM
Originally posted by Colin
Again your talking just the engine , nothing else . Not a supercharged engine like was being discussed just a run of the mill 3800 .

No i meant the 3800 it was from a ssei or seii somthing like that i thought that was the supercharged ones?? I could be wrong im going back tomorrow for headlites so i'll make sure. I could be wrong but i thought seii were the supercharged ones??

BBT
07-29-2004, 03:22 PM
Check out what year and be sure it is from an SSEi in order to be sc'd.
The older SSE models were not supercharged.

Stephen's GA
07-30-2004, 10:09 AM
Id like to see a 4.9 caddy swap of course this idea would be for a person who has there GA as a project only car but you could drop a 4.9 and 4t60 trans and carburate it no computer to mess with or you could use the ecm and use the 4t60e trans and performance is equiv to the 3800 series11 sc motor + you have a V8. Just an idea though.

All these swap dreamers it not as hard as most people make it out to be and your not limited to the 3800 you could go as far as a fwd LS6 yall should check out the fiero forum yeah its for fieros but they have so many resources that can fab up mounts, trans adapter plates, custom tune ecm, make special flywheels, and the list goes on + many of the motors used in these fieros are motors are GA could easily use and we have more room in are engine bay. Just gotta be creative.

Colin
07-30-2004, 11:49 AM
Yeah , and it's nice to have that heavier engine in the back like the fiero . :D

BBT
07-30-2004, 08:45 PM
I knew of a guy who put a 455 in his Fiero. Pretty good job from the photos he showed.

Stephen's GA
07-31-2004, 01:15 PM
A N* powered GA would rock and it is a do able swap that would give you atleast an high 11 to 12sec car just gotta go to a salvage yrd and find all your parts. Thats how the fiero guys do swaps they go to the junk yard and try differ parts and they then combine em all and bamm you have a wicked little car.

Im doing the 4.9 swap in my fiero i got motor,trans,ecu,half shafts,motor and trans mounts,a shifter,extra wiring, trans and oil cooler, and some misc other things all for $900 thats alot of stuff and thats pretty much all i need for the swap with the exception of some plumbing parts and elec connectors. I also pick up a couple of turbo's and manifolds for $50 thats not bad either. So like i said its not as bad as it seems i think the labor is the hardest part.

Dave C
07-31-2004, 11:50 PM
Are you sure you could fit a 4.9L in there?
I'm no expert, but it seems like the 3400 is in there pretty tight as it is... Please correct me if I'm wrong (not being sarcastic, just wondering).

Stephen's GA
08-01-2004, 01:13 PM
Have you ever seen the old tech 4 *2.5* that GM used the 4.9 is slightly bigger its like 3" wider almost the same size as the 3400 so yeah it would fit. It also weighs 50#'s more than the 2.5. The engine bay in the fiero is the same size side to side as the GA but its narrower R-F than the GA's