[Gmecm] TBI - TPI swap ??

[Kim Tucker]

?ke,
    Well, it sounds like you're too far down this path to consider
another, but I thought I'd suggest another path to others that may go
down this road.  A friend of mine had a '95 truck and he was looking for
more power and horsepower without spending a lot of money.  On his
truck, we grafted a '97 engine and OEM harness into the truck with very
little difficulty.  I plan to put the swap on a web page someday, and
I'll have to go through my notes to verify the wiring chart.  The end
result was a engine that looked bone stock since we were able to just
re-pin the stock firewall connector for most of the connections.  There
were a few splices that had to be made where the ECM once was, but for
the most part it went smoothly.  In his case, he had a manual trans
truck, so there wasn't any concern about whether the transmission could
be controlled with the newer PCM.
	In the end, it cost him only $1200 at the junkyard for the whole
kit (including all accessories, A/C hoses, air intake, and other misc.
Then, he was able to sell his old TBI motor back to the wrecking yard
for $400.  He wound up with a 75,000 mile vortec motor, with 255
horsepower and 330 ft-lbs. of torque. Instead of 210 horsepower and 300
ft-lbs of torque.
	I'm not sure how similar the wiring is for '91-'94's, but the
'95 only had about 12 wires that had to be re-routed.

Jake

-----Original Message-----
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
Behalf Of ?ke Georgsson
Sent: Monday, August 21, 2006 1:45 PM
To: gmecm at diy-efi.org
Subject: [Gmecm] TBI - TPI swap ??


hello my name is ?ke Georgsson and i live in sweden  . i?v been a 
Subscriber of this list for a loong time now but  it?s alittle bit 
owerkill for me  but im still reading it and get some small  popups what

it?s al about .. but far FAR away from  say that im understund  lots of 
what u guys are talking about :-)   well it seems in the loong run  that

this is a  great list and finaly i?v got the use of it

i?v got a projekt that  has stoped at  a matter that il think u guys can

help me out on  so here it comes  :
 
I has got an Old  suburban  (1995  4 x 4 /  350  / Aut  )  and i have 
rebuild an  ZZZ engine  with new pistons    , this zzz engine (first 
edition)  has  smaller  combustionchabers then  stock  ( 58 cc )  so the

compression is gonna be  little higher then stock ( the aprox 
compression ratio 9.73:1 with a 64cc head according to summit )  but my 
heads are as smaller  . that wouldent be  bad cause  im planning to run 
it on E85   and then i need a higher combustion  , well  headers  also 
and a new comb from crane (compucam 2010 ) then to the thing iv know  U 
can help me out  .. the injectionsystem ,,  i have an  complette  >TPI 
system  a take of from an  1989 Pontiac GTA   and i have a set of  
bigger injectors ( accel 36 # ?) That i wanna use instead of the stock 
oem TBI system   i?v had planned to us an megasquirt system to manage 
the fuelinjection  in run the  stock ECM  parallel  to get the 
transmission work right  .. i been mailed around  on the net and  get 
alot of  persons that says that this  ECM i have in the 95 burb is been 
hacked down and are able even to run a TPI system  ,, the  question is  
is this thru ? and if so  where do i find any instructions how i shall 
do  ?  and  the things around that i need to map the chip that  i must 
customise  to  make it al run ( even on  E85  thats need  moore fuel )  
is it expensive and where do i find it ?

 be gentel please   im a good mecanic  and know electrics quite good   
but as i already  told this is alittle bit to owerrated for me NOW .. 
but im quick learning and  are not afraid of testing new things  ..

 best regards   ?ke
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