Converting from carb to efi..invader 204

[captmello]

Re: Converting from carb to efi..invader 204

Wow, well that seems too easy!!!

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Wow, well that seems too easy!!!

i agree, only cost me a stud removal tool for the different adapter that was attached to the crankshaft.. it will be 100% ready in about an hour.. im looking up torque number and it will be ready for a test start up on a ground mount!

 

[Don S]

Re: Converting from carb to efi..invader 204

If you are using your old flywheel on the newer engine, might want to run it before you put it in the boat. You may have a serious vibration issue. the flywheel may not be balanced for the newer engine.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

If i run it out of the boat how can i tell if it has a balance issue? Or will it be really noticeable? Also electricly how do i do that?

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Don- coerrect me if im wrong but arent these sbc's internaly balanced? therefore as long as my flywheel is nuetral balanced it wouldnt matter? or should i take the 12 3/4 inch flywheel and the 14" flywheel to a machine shop and have the 12 3/4 balanced to match?

 

[Don S]

Re: Converting from carb to efi..invader 204

Don- coerrect me if im wrong but arent these sbc's internaly balanced?

Yes, for a 14" flywheel. Was the center hole in the flywheel the same size? I thought they were different size.
There is a reason GM went to the 14" flywheel, I just don't know what that reason is.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

No the center hole was the exact same size. As well as the stud that sticks out of the crank for alignment. Both flywheels have no weights on them.

 

[captmello]

Re: Converting from carb to efi..invader 204

I ran across this on the web.

The bigger flywheels are better for high compression or large cubic inch engines. Other than the bolt pattern (and low torque verses high torque starters) the starters are the same.

The starter will spin the engine faster with the 153 tooth flywheel, but the starter has more "leverage" turning a 168 tooth flywheel, therefore turns the engine over with less amperage draw.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

hmmm.. well i gave my engine casting numbers to a engine builder and he is getting back to me shortly, he will be able to tell if i can use it the way it is or if it needs to be balanced

 

[Don S]

Re: Converting from carb to efi..invader 204

I don't know if balance will be a problem or not, i was just suggesting you check it for vibration before putting it in the boat.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

I don't know if balance will be a problem or not, i was just suggesting you check it for vibration before putting it in the boat.

oh ok, i feel that it should work..but everyone knows how that goes without being sure..

Also what is the best way to test run the motor on land..besides fuel, battery, water, i can do tht i just cant figure out the main power part

 

[bransjeep]

Re: Converting from carb to efi..invader 204

well it was confirmed by three sources that my flywheel will be ok to use.. the gm 350 changed in 1986 from a two-piece rear main seal to a 1 piece for leak reasons..therefore the crankshaft flange changed as well and added a small counterweight to the flange, its a misconception that newer 350s are externaly balanced when they arent. the 350 is internaly balanced and either style flywheel will work. its the 383 strokers and 400 small blocks need to be externaly balanced to acount for the extra rotating mass. also i wil add my engine has no weights on either the balancer nor the original 14" flywheel thus also confirming this...Man i learned A LOT today haha

 

[Don S]

Re: Converting from carb to efi..invader 204

well it was confirmed by three sources that my flywheel will be ok to use..

Man i learned A LOT today haha

Great, I learned something to.
I would still run it on the floor before putting it in the boat. Of course I do that on every engine I install, and have for years. Then I know there are no leaks, or running problems before installing.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Great, I learned something to.
I would still run it on the floor before putting it in the boat. Of course I do that on every engine I install, and have for years. Then I know there are no leaks, or running problems before installing.

i plan on trying to set it up for a floor run tomorrow hopefully

 

[bransjeep]

Re: Converting from carb to efi..invader 204

well it was confirmed by three sources that my flywheel will be ok to use.. the gm 350 changed in 1986 from a two-piece rear main seal to a 1 piece for leak reasons..therefore the crankshaft flange changed as well and added a small counterweight to the flange, its a misconception that newer 350s are externaly balanced when they arent. the 350 is internaly balanced and either style flywheel will work. its the 383 strokers and 400 small blocks need to be externaly balanced to acount for the extra rotating mass. also i wil add my engine has no weights on either the balancer nor the original 14" flywheel thus also confirming this...Man i learned A LOT today haha

also i will add that this was for a 3.00 in flywheel pattern

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Don S you are the man! My motor started right up came down to idle real even and opens up like a champ! I have videos ill post later

 

[bransjeep]

Re: Converting from carb to efi..invader 204

http://youtu.be/HFGAiri4mAQ
heres a short video of me starting it up today..lemme know wutcha think?

 

[captmello]

Re: Converting from carb to efi..invader 204

Sounds great! Hope the rest of the job goes just as well.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Thanks! Me too, all thats left really is u-joints in the drive, change the gear oil in it, i also ordered new bellows and a water inlet pipe for the DP and a helmet ratchet. That along with puttin the engine in and a Detail and its ready to go

 

[bransjeep]

Re: Converting from carb to efi..invader 204

shes now 100% complete after a few trial runs, and figuring out trim issues. here are a few pics and a video....also a shot of the pyramid at Pyramid Lake, Nevada
thanks for all your help with the project..u guys made it so a me, a 19 year could do it

http://youtu.be/Ja6DQDhtmGU