Pontiac POWER Rules!

My Trans-Am is a 1973 model; Cameo White with Saddle interior.  It is a factory 4-spd car that came with a "standard" 455.  It now has an SD-455.
 
Pontiac made this car with no A/C, so the SD is free to do what it does best.
 
The rear end was beefed up with Moser axles, a c-clip eliminator and 3.90 Richmond gears.
 
Thanks,  Ralph Aguirre 

To date I have port fuel injected the engine using a torker manifold , a
custom thottle body I milled up and a delco computer , this picked up 60 HP
from 1500rpm to 5000rpm with no other mods with the added benefit of a
couple of extra mpg.
We are going to stroke it with a 455 crank (was 400) while we do the
rebuild.

I built the engine for Jason about 12 years ago and converted it to
injection about 6 months ago.
it turned out real well , about the only thing I will change is the fuel
rails as they look a bit agricultural.
Then engine was a fairly mild 400 that I did a moderate port clean up on ,
it put out a measly 220hp at the rear wheels before the injection (which
lifted it to 280 hp ) but fries the tyres with ease in all gears . I think
it had done a 14.2 et years ago on street tyres.

Anyway the timing cover coroded internally causing the coolant to bypass on
one bank , we stripped it expecting to find blown head gasket ( I though I
might have beat up on it while doing the engine mapping on the dyno) but
there were no problems internally . I thought we would freshen it up while
it was apart . one thing led to another and the decision has been made to
try and find a 455 short or a 455 crank that will fit in the 400 block and
to slot a bit more of a cam into it as the injection has totally transformed
the drivability of the car.

The injection I put together using a delco 1227165 ecu out of the tuned port
chev engine  , I then modified the code to use a map sensored system on it
like the later tuned port and LT1 use.
I ran the car on the dyno changing fuel and ignition while the engine is
running  to find max power and best fuel economy / timing for each load
point and rpm - took about 4 -5 hrs on the dyno to get it 90% right. After I
did that I burnt a new program into the chip .

I have been mucking around with installing blowers on the new (here anyway)
LS1 this last couple of months - looks like they were done more by Ponty
engineers rather than Chevy ones

Daniel Collins

Chris 'critter' Ritter's 1974 455 SD Trans Am. A beautiful car that has won many awards.
He is also president of a new club in Arkansas.
Arkansas Pontiac Association

Here is a shot of my 66 lemans. 
The future holds an upgrade to a 400, 
and yes I will be getting rid of the wire wheels! 
This thing has been in storage since 1988 and 
I am the third owner. Not bad for $4800.00! 

1980 Grad Prix 40 over 455 turbo 400,3:55 gear NO NITROUS has ran a best of 11:50 in street trim 

Billy Studdard     
Ruthless Racing 
Monroe Ga 

69 GTO had it since 17 now 35  has 455 bored .30 over 400 turbo 2800 stall
 12 bolt posi 4.11 gear and something for Johnny law TO READ DRAG-EM  
ON the liscense plates heheheheehhehe  
Thank's Gary Young

1984 TA.
Brenda & David Back














Tuffyangel


I have a 1979 firebird formula with a 78 6.6 400.

Crank - 10/20
Block -  bore 30
cam - 214/224  272/282  442/465
true roller timing chain
edlebrock pontiac preformer intake
stock Quadrojet
summit headers
th350  w/ B & M Transpack
3.23 posi






mike dawg











Michael Jones of Athens, AL.


  I have a Red 1969 Pontiac Firebird 400











Kool Aid













Bjorn Sefeldt's 1969 Firebird Convertible






   1969  Convertible Firebird ( was 350) , is 400 now 
   TH350 automatic 
   ...was once midnight green w dark green top...now 'resale' red w black top & interior
   Engine is a 1972 model 400 , so not as powerful as 69 ,but runs good
   ...14K miles on engine now, no a/c.
   ...had the car for 2 years, keep working on it , "almost done"
 
Bjorn Sefeldt 
Houston Texas













Bryan Jones 1977 Trans Am




I own a 1977 T/A and I love it. The car was
actually produced the day after I was, so it holds some sentimental value.






















Tony Morella's 1965 GTO

















Steve Johnson's 1965 GTO


















E-mail me you're pics to be included in my Reader's Ride.
Include your name and pertinent info.




  Send e-mail tojohnta1@wallaceracing.com