a buddy is going from efi lt1 to carb lt1 which is better?

[9302z28SS]

He replaced 2 plugs on the drivers side and 1 on the passenger side and he tried to start it and said it sounded
Like a 50 cal going off when it backfired

[BP_Z28]

Here's an idea. Why not have him sign up on here, that way there is not a middle man?

[9302z28SS]

Not sure but I don't think he has a computer lol.

[hoogiesngrinderz]

i beleive 4l60e needs rpm signal to let the computer contol it so the easiest way is to find rpm signal and tap it into the computer.

Not even close, Tyler.


They guy will have to get an LT1 specific intake, older intakes are NOT compatible without filling and drilling. They make an intake for doing this exact swap, just need to add a distributor.

[WMCC Gary]

Yeah if you're going to spend $2000, go with the BETTER combination and do the LS1 PCM like Joel said...

But that said - he has a 95 Formula and was driving around with the hood off? He from Taylor-tucky or just wish it was a 3rd gen?

In case you didn't know...4th gens are the new 3rd gens

[1BADAIR]

i beleive 4l60e needs rpm signal to let the computer contol it so the easiest way is to find rpm signal and tap it into the computer.

PCM needs engine torque output , rpm, tps, map/maf

[TylerT/AZ28]

Not even close, Tyler.


They guy will have to get an LT1 specific intake, older intakes are NOT compatible without filling and drilling. They make an intake for doing this exact swap, just need to add a distributor.

hey it wa s shot in the dark apparantly for tbi all you need to do is take the two wires from the coil and attach the black one to the orange one. i was thinkiking even with an lt1 there would be a similar method because, i thought he was swapping to a distributor anyhow.

[hoogiesngrinderz]

hey it wa s shot in the dark apparantly for tbi all you need to do is take the two wires from the coil and attach the black one to the orange one. i was thinkiking even with an lt1 there would be a similar method because, i thought he was swapping to a distributor anyhow.

Any 4L60E trans needs more than RPM to run it, even TBI. I don't want to be mean here, but "shot it the dark" info isn't what people are looking for and is unbeneficial.

VSS, MAP/MAF, RPM, TPS - just like Larry said. Newer models use ISS as well.

[masterfab]

Re: a buddy is going from efi lt1 to carb lt1 which is better?

I would just swap a 700r4. Or go to efi connections

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[Fox Slaughter]

Haha I am still set on going Carb and Dizzy.

Mine won't just to be a run a carb and dizzy there is reasons why I will be doing this.

[TylerT/AZ28]

Any 4L60E trans needs more than RPM to run it, even TBI. I don't want to be mean here, but "shot it the dark" info isn't what people are looking for and is unbeneficial.

VSS, MAP/MAF, RPM, TPS - just like Larry said. Newer models use ISS as well.

ok i dd know all that besides map and it seemed to escape me, holley has a kit for tps iirc

Haha I am still set on going Carb and Dizzy.

Mine won't just to be a run a carb and dizzy there is reasons why I will be doing this.

i partially know your reasons i do believe

[Fox Slaughter]

Yes some people know some of the plan but I was up the other night thinking of about another idea, that I have never seen done for the LT1.

Part of the plan I will be doing for sure. As for the wow part of the plan still debating on that but only time will tell

[masterfab]

Re: a buddy is going from efi lt1 to carb lt1 which is better?

Yes some people know some of the plan but I was up the other night thinking of about another idea, that I have never seen done for the LT1.

Part of the plan I will be doing for sure. As for the wow part of the plan still debating on that but only time will tell

I was on this sort of venture awhile back. i think i still have a custom sheet metal intake with provisions for a dizzy. i made it to go three ways. Dual carb/ single carb/ or fuel injection. All bolt onto the top of the intake. Ill see if i can find it.

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[9302z28SS]

Post pics of that Id like to see it

[masterfab]

Re: a buddy is going from efi lt1 to carb lt1 which is better?

Post pics of that Id like to see it

Not a problem. i just gotta look in storage.

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