crashman

iTrader: (1)

Yeah I understand that, that is where I put my iol sending unit for my after market gauge. Keep up the good work I'm going to be following this closely.

fieroguru

iTrader: (1)

I plan to wail on this engine once installed and it might see some NO2 at some point, so I went ahead and installed the 4 corner vent setup from a 6.0L truck just to ensure cylinders 7&8 have the best chance for equal cooling.



It took some slight bending of the lines to route them around all the raised bosses and oil passages and I bent the exit tube to be vertical so it clears the intake. 2 bolt bosses for the DoD stuff under the cover needed cut down, but not far enough to touch the bolts. Some RTV should seal them back up. The bottom corner of the LS2 intake (the triangle part that rests between the heads and the valled cover) needed about 1/2" trimmed from it at the corner to clear the tube in the upper right hand corner of the picture. But now it fits!

94camaroz28lt1

iTrader: (1)

nice thread good work! You wouldn't happen to know the stock LS2 itake manifold bolt length would you?

GXP25

iTrader: (3)

FYI, a great thread by fieroguru with lots of LS4 upgrade information along with a summary of his build to date: http://www.fiero.nl/forum/Forum2/HTML/113207.html

fieroguru

iTrader: (1)

Thanks for the link!

I have several days off from now till Jan 2nd, so I hope to have all the mounts/accesory drive done and be working on the exhaust before 2011 rolls around.

Then it will be down to the wiring, fuel/coolant plumbing and the startup... followed by lots of tuning for all the changed parts.

I hope to have the swap done by early spring...

fieroguru

iTrader: (1)

It took what seems like forever, but I now have my LS4 running with the LS2 throttle body (part # 12570790). For the E67 guys here are the wiring details:
C2 pin 11, Yellow wire - to Pin B of LS2 TB
C2 pin 12, Brown wire - to Pin A of LS2 TB
C2 pin 29, Tan wire - to Pin C of LS2 TB
C2 pin 44, Grey wire - to Pin E of LS2 TB
C2 pin 64, Green/White wire - to Pin F of LS2 TB
C2 pin 66, purple wire - to Pin D of LS2 TB
C3 pin 28, redundant ground - not used
C3 pin 44, redundant 5V ref - not used

Here is a video of it in action:

Here is the first start with a nasty lope... I set off the garage smoke alarms...

Here is how it idles after a couple of throttle blips:

Here are a couple of pictures of the engine bay:

91parkave

iTrader: (4)

yesssssss! okay so youre running the E67 PCM or a E40? Regardless im assuming since E40 PCM's ran the ls2 goat and also 06 grand prixs that we shouldnt have to repin?

fieroguru

iTrader: (1)

E67

The CTSV also ran the LS2 with an E67 (and a manual transmission), but I haven't given up on DoD yet, so I am still using the LS4 file.

DavidGXP

iTrader: (14)

So, is the car done?

fieroguru

iTrader: (1)

Far from it, but getting closer every day.

Right now it is missing most of its body panels and interior and I still need to reconnect all the rear suspension, install the brakes and , hook up the wideband, then start on the tuning...