ecotec swap (Page 52/98)
wftb FEB 16, 03:04 PM
got my new 20G turbo and hahn manifold:


mocking up new charge piping:


wftb FEB 16, 06:36 PM
better old vs new photo .when i first took it out of the box , i thought they were the same :

wftb FEB 18, 06:11 PM
i checked the fit of the charge piping on the car .i have bolted the old cylinder head on to the motor in the car and now that it is warmer(40*f) ,this makes it easy to do test fits .i had to shorten the bracket i made to hold up the intercooler as it was too close to the decklid support arm .put all the clamps on and took some pics of what you will see when you look in the engine bay :

should be able to get the exhaust mocked up tomorrow and sunday .but , i hear there is another storm coming so maybe not....
FieroFiend FEB 18, 07:54 PM
Youll love the 20g, hahns products are superb and they are great to work with.
wftb FEB 23, 12:08 AM
mounted the waste gate on my new turbo.i had to clock it and drill and tap a new hole to mount it to the turbo and bend and extend the actuator arm:


starting the new exhaust system .used a tailpipe expander to hold my downpipe flange in place for welding:

new brass fittings on intercooler :

have all day thursday to work on the car but working nights all weekend .
wftb FEB 24, 09:49 PM
got most of my new 2.5" exhaust finished today .i have to leave the welding of the 90* exit pipes till after i have the new motor in and i figure out what kind of hangers i want to use .after i got it fitted and welded i put it all together in the basement :


the muffler is a flowmaster for a camaro .this time i managed to tuck everything up above the bottom of the bumper .should look nice with nothing exposed except the tips .
wftb MAR 03, 10:44 PM
got the old motor out and now i am working on cleaning up my fuel lines and coolant lines .i am hard piping as much of the fuel lines as possible .i am doing away with all of the rubber hoses with a combo of original equipment flex lines and stuff from the junkyard and some new bits from cdn tire and ideal supply .on the coolant side ,i am going to take the cavalier overflow tank and mount it up front and get rid of the fiero overflow .i have been running with both ever since i got the ecotec running and this will improve aesthetics a lot .then i am going to sort out the wiring and get everything cleaned up and mounted better .i am going to rip all the old insulation off and put in new foil backed insulation .no pics tonight , going on holidays sunday , cant wait to get away from the snow....
Isolde MAR 06, 10:21 PM
I had the 2.5" version of that muffler on my '91 Camaro RS 5.0L, it sounded okay there. But I've no idea what it'll be like on a turbo 4. I'm surprised that I'm now curious. Will you be posting a sound clip? Or a link to one?
wftb MAR 09, 03:42 AM
i hope to do a video in the spring if my wife can figure it out.i am hopeless when it comes to things like that .the car sounds awesome under boost but just driving around it sounds like any econobox .its a jekyl and hyde thing .
wftb MAR 18, 04:20 PM
one of the improvements i have been working on is hard piping my fuel lines with adapter pipes that are compatible with the ecotec factory quick connect flex lines that connect to the tank and the engine fuel lines .this gets rid of the high pressure rubber hoses and multitude of clamps i have been using .here is how the return line is now hooked up :

the rest of the lines are complete and on the car .when i drop the motor in , i just have to put two quick connect flex lines on and the fuel circuit will be done .i have gone back to using the aeromotive FP regulator as i realized that i took it off when something else (my injector harness) was actually causing a problem .this regulator responds to boost and vaccuum and has a 1:1 boost to fuel pressure increase feature .i hard piped the vortec 6:1 FMU in as well and made a mount to attatch it to the intake manifold .now i am moving the cavalier overflow bottle to the front of the car and eliminating the fiero catch tank .i have been running with both and this will simplify things and free up more space in the engine compartment .