New guy here with a 3100 sunfire

[Dxray]

Figured it's time i upgraded to the big block forums.

Here's my sunfire with a 94 3100 from a grand am. Mars and i did the whole swap in a weekend.








The lower torque mount was made by cutting up the 2.2 bracket and welding it to the 3100 bracket. I bottomed out with it 800' from my house on the first ride out which is why it's a little shiny, and bent. It hangs about an inch lower than the oil pan, which is a good thing.




Mounted the ecm under the glove box.



This is the only pics of the wiring i can get from my phone.



Here a vid of us starting the motor on the garage floor, that was interesting!

http://www.youtube.com/watch?v=xpCeDeOIdO4

The factory dummy lights for the oil pressure and charging indicator work, as well as the temp gauge. Iv put nearly 1000 miles on it and i haven't had a problem yet. So far ive only raced my buddy 2001 grand prix gt and it's pretty much an even race, but i very slowly creep up on him. Not too bad for a sunfire.

Gotta thank Mars for the help, he did an awesome job on the custom made down pipe and welding on the mount. Now we'll see if i can make this car faster than his.

[ForcedFirebird]

Welcome Nice job, how long of a weekend was it?

[Dxray]

Welcome Nice job, how long of a weekend was it?

Thanks

Well we started Friday night around 7pm by pulling the 2.2 and putting in the 3100, we called it quits a little after midnight. Started saturday around 11am, and did everything else that needed to be done. Now it would have been done around 11:30pm, but when we fires it it up, motor had a slight knock in it. After letting it run for a bit, the knocking got worst and started to really sound bad. So we shut it down, talked about what it could be and finaly called it a night at around 12:30. Sunday morning after 9am sometime i pulled off both valve cover and found out a rocker came loose. I must have forgoten to torque it when i did the lim gasket, but i torque them all twice and i'm pretty sure i didn't forget one. But mars came by at around noon to finish up a couple little thing and we hit the road with it by around 4pm.

It was a fairly long weekend, but it turned out great.

[ForcedFirebird]

How did you start it on the hoist? ECM hooked up?

[Mars]

Yeah, the computer was hooked up, hell it even had a fan and rad and coolant. The dogbone mount aint pretty, but it will work. Strong as all of hell.

Very nice story Ray, BUT...



Who are you trying to kid, it will NEVER be faster than black thunder.

[ForcedFirebird]

Who are you trying to kid, it will NEVER be faster than black thunder.

Is that what you going to call the Firebird?

[Mars]

Black Thunder :





Moo ha ha ha

[ForcedFirebird]

This is sexy too ...






Look how much room there is for turbo charger(s)

[IsaacHayes]

Nice work for 1 weekend!!!

What transmission? Is it running the dreaded 94 ECM with un-tuneable OBD1.5? A 3400 with a cam and better ECM should be the next upgrade to go faster.

EDIT: that torque mount is no problem. Before I got stiffer (FE3) springs I would bottom out all the time there, my torque strut was quite scuffed from it.

[Dxray]

Nice work for 1 weekend!!!

What transmission? Is it running the dreaded 94 ECM with un-tuneable OBD1.5? A 3400 with a cam and better ECM should be the next upgrade to go faster.

EDIT: that torque mount is no problem. Before I got stiffer (FE3) springs I would bottom out all the time there, my torque strut was quite scuffed from it.

Running the stock isuzu trans. If i turbo it this summer, i'm gonna change the ecm to an obd 1. Mars seems to have the tuning pretty down pat, i'm sure he can burn me a good chip.

[IsaacHayes]

Get any kind of bouncing idle when stopped with the stock 94 ECM? All the guys that swap 5spds usually do since the automatic code is still there. Even though it's no 3400 the 3100 can be pretty potent. My 94 always has been, and even more so with the intake manifolds on there now.

I think you should turbo it. That'd be sick. Then tell everyone you turboed your car but don't tell em you put a V6 in there too hahah

[El_Diablo]

even better, now that the majority fo the work is done, get a 3400 and swap in some forged pistons and cam, port the top end and then turbo it


hell, even just swapping to a large port setup and turboing it would wake it up a bit im sure

[Dxray]

Get any kind of bouncing idle when stopped with the stock 94 ECM? All the guys that swap 5spds usually do since the automatic code is still there. Even though it's no 3400 the 3100 can be pretty potent. My 94 always has been, and even more so with the intake manifolds on there now.

I think you should turbo it. That'd be sick. Then tell everyone you turboed your car but don't tell em you put a V6 in there too hahah

I do have a slight problem with the idle. If the rpms are higher than around 2000 and i push in the clutch, it does stall. I just have to keep it in gear and let the motor idle down to 1000rpm and it doesn't stall. Mars said his car does the same so i guess it's normal. But just sitting still, it idles at 650rpm. It fluctuated from 600 to 700 though.

Well my plan is to find a complete 3400 and just swap over the top end. Then i can do my turbo set up and run it till i blow the 3100, if it ever happens. If that were happens i can slap in the 3400 bottom end.

[IsaacHayes]

I see. A 2000+ 3100 has the same top end as a 3400 too.

Odd the car shouldn't stall like that especially Mars'...

[Mars]

My car stall at times cause I can't figure out idle tunning with the 8F code. I tried just about everything and just gave up. BLM is in range, WB02 ratio is fine, it just stalls for some reason. It oscillates worse and worse then stalls. haha.

Rays car stalls cause it's an auto ECM and it's a manual.