New guy here with a 3100 sunfire

[Mars]

The roads around here require a full size truck to not bottom out.

lol.

[PCGUY112887]

So... why did you bottom out?

[El_Diablo]

yet another reason to upgrade to OBD2

[Mars]

No, no problems with any of the sensors, ect.

It seems like a very common problem among people using larger injectors with the tgp code.

I wish I could get my car to idle at 850 RPM, but I've tried it all and talked to several people, and just can never get it right.

[IsaacHayes]

Mars, is your IAC 100% good? I had an oscillating idle and it would die sometimes and it was a bad IAC.

[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.

[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'...

[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.

[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

[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

[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]

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.

[ForcedFirebird]

This is sexy too ...






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

[Mars]

Black Thunder :





Moo ha ha ha

[ForcedFirebird]

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

Is that what you going to call the Firebird?