 |
|
|
 |
 |
|
|
 |
MOTOR COMPARTMENT
|
|
|
|
|
|
|
|
The motor in our 87 GN has only been opened up to change the rear main seal
and to put on some custom Buick Motorsports
valve covers. The mileage as of 11-06 is only 26,400 so it is still fresh. At
this point it has been down the strip about 60 times or so and the best ET has
been a 12.20 @ 110 mph.
Modifications are the TA49 turbo, injectors were
changed to Delphi 37lb'ers, a 2800 stall torque converter was added and an alcohol
injection system was plumbed in to help eliminate knock retard and allow
higher boost on pump gas. The stock intercooler had a Duttweiller neck but
was recently upgraded to a stock location polished intercooler. I have also
incorporated a 3.5" Chevy LS1 MAF sensor into my cold air intake
system. The Chevy MAF is controlled by a
Translator Plus unit. This little box is an engineering marvel and
when used with an "Extender Chip" allows you to tune fuel and
timing settings. Go to my Computer
& Engine control page for more details.. A Terry Houston 3"
stainless steel downpipe and a Hooker cat back dual exhaust
system with Aerochamber mufflers is what I run for an exhaust system. I have also added and electric
exhaust cutout to the dump pipe so if I want the car louder all I have to do
is hit a switch.
I also
installed a complete set of polished aluminum pulleys from RJC
Racing Products. The aluminum crank pulley they make is a work of
art! Not to mention that is saves about 3 lbs of rotating mass over the
stock unit. I also installed what is probably the hottest modification for a
reasonable price out there right now, the RJC Power Plate. More details on
this on my Throttle body mods page.
