Prologue or is PostScript?
NOTE:
Throughout this write-up, you'll see references to John
Wilson who supplied the electronic components of the TBI
conversion kit for my upgrade done in 2006.
While John is still doing a
Triumph conversion kit,
Rick
Patton
has now partnered with
Affordable Fuel Injection (AFI)
for all of the electronics. The main
advantage to this new partnership is that you now have
one stop shopping with Rick. Everything from the
adapters to the electronics to the distributor
modifications are all handled and shipped by Rick. In
addition, AFI will provide all technical support and up
to 4 custom chip programs.
Anyway.....this gets
written after the system is installed to share some
thoughts now that I've gone through the whole process.
Let's start with the fact that I am "automotively
inept BUT mechanically adept" and I'm also a good
problem solver. In other words, I've never rebuilt an
engine, transmission, suspension, differential or even
done my own brake job etc. etc. I have tremendous
admiration for people who can and would love to do that
someday under an expert's watchful eye. But it's nothing
I would ever tackle alone, no matter how good the
instructions are. So why would I ever consider tackling
the installation of Throttle Body Injection (TBI)? The
answer is simple.....this is basically a "plug & play"
system that anyone with basic mechanical skills can do.
I did this in my garage with the car on jack stands. No
lift required. It was done with all the tools I have on
hand, which is nothing out of the ordinary. I did,
however, spend a lot of time emailing and talking to
Rick Patton (Patton
Machine Products) and John Wilson
to get comfortable with what work was required of me and
how responsive they'd be to my endless stream of
questions. Being overly cautious and not a risk taker, I
did ask them hundreds of questions as I moved through
the installation. For others more adept then I, the
questions would probably be far fewer. The one thing I
did do was have John Wilson do the distributor
conversion for me. Basically he guts the existing
distributor, installs a ball bearing race around the
shaft to prevent wobble and converts it to electronic
via some custom parts he has machined. The option is, he
will supply the parts and you can do it yourself. Not a
route I'd recommend. The hardest part of the
installation was running the fuel lines and installing
the new fuel pump. It just took me a few different
routes to find the one I liked best. The most stomach
churning was removing and then re-installing my
distributor, a task I haven't done since 1978 on my old
Chevy Suburban. Again...uneventful. Beyond that,
everything is a direct bolt on product or a plug ended
connection that can only go to one place. There are
absolutely NO MODIFICATIONS (except distributor)
required to make this all work. With the exception of
the distributor conversion, everything is
reversible if, for some reason, you'd want to go back to
the original parts.
Rick and John are very
different personalities to work with. Rick owns two NAPA
stores in Maine and enjoys interacting with customers in
a business-like yet fun manner. I always know that Rick
will be answering his email at 3 AM after he comes up
from his shop. Rick's components are typically delivered
immediately upon receipt of payment and if there's a
problem he will let you know. John is an engineer who's
a TBI expert and can diagnose and fix any injection
problem you come up against. Emails are secondary to
problem resolution and it sometimes takes a creative
subject line to grab his attention. Subject lines such
as: HELP NEEDED or ANSWER PLEASE usually worked for me,
but your experience may differ. You should also expect
delivery to take 6 - 8 weeks as each unit is custom
assembled for your car. I know he's working on reducing
his delivery times but if you expect it in 8 weeks and
get it in 2 weeks, all the better.
So, who should do this
conversion? Well, if keeping your car original is your
goal then this isn't for you. But there are so many
British Car owners who consider their cars original but
are running modern shocks, other upgraded components,
electric fans, electric fuel pumps and electronic
ignitions that this is a logical next step. The cost is
about $1300 but you'll never have to rebuild your carbs
again or even do a "tune-up". No more misses, stumbles,
hesitations, hard starting etc. Drivability is like a
modern car with the same reliability. More power and
torque coupled with significantly better fuel economy.
You've probably spent more then this just maintaining
your car over the years. I know that in the past 10
years I have.
Bottom
line..............If I can do this, anyone can.
The Background
Ever since hearing about Rick Patton's
adapter kit for converting ZS carbs to
TBI, I've been intrigued with the idea. Now that he's had almost 2 years
experience with the kit, has made various improvements and "partnered" with
John Wilson for the
electronic components I've decided to take the plunge. A number of people on the
Triumph Mail List have asked why I'd spend the money (probably be close to
$1800.00 when finished) when these cars run fine when properly maintained. Well,
I figure I've probably spent close to that over the past 9 years keeping the car
running from a carb/fuel and ignition standpoint. When I got the car I had the
carbs rebuilt ($300), 5 years later another rebuild ($300) and earlier this year
I had them totally refurbished/rebuilt by
PalTech ($400). So that's $1000 right there on a maintenance component that
I felt should be done by a professional. This summer my mechanical fuel pump
started acting flakey so I converted to a Facet electric pump and a Holley
regulator. Between the main components, filters, hose, clamps, etc...another
$150. Now on top of all this there's been a carb backfire issue that just
refuses to go away. To compound the issue, it's an intermittent problem. Sooooo.....I
finally brought it to a professional who fixed it and then fixed it again. After
the second visit, they found that the Holley regulator is inconsistent at
holding fuel pressure. A problem they've seen in their MGB race car so they no
longer use the Holley regulator. Let's just say the cost for the Pro gets me up
close to the cost of the TBI conversion. Then there's the failed condensers and
rotors which caused all kinds of misses....aggravation factor -
Priceless!
So in response to the "WHY" question from a List
member I wrote the following response:
"The TBI upgrade is more then an
ignition upgrade as the car is now converted to fuel injection or Throttle
Body Injection. The only function the carbs have after this is to hold the
injectors and suck air in. Over the past few years I've probably spent close
to the cost of this system chasing assorted misses, backfires, failed
condensers, bad rotors, carb rebuilds, conversion to electric fuel pump,
fuel regulator that likes to change it's setting on its own etc. etc...in
both money and time...and I should add aggravation. Anyone who knows my car
knows that originality isn’t a concern but reliability and decreased
maintenance is. It's like Dan's wire harness, why install it rather then
just continue to troubleshoot and repair the original harness? I did it
because I was tired of chasing electrical problems that could be eliminated
with this upgrade. Two driving seasons later and there hasn't been a single
harness related problem, blown fuse or electrical glitch. The Lucas Prince
of Darkness has been banished from my car :-)
I've toyed with Rick Patton's TBI system for 2
years now but really wanted to see him get more systems out there as well as
wanting to see Aaron's car at Stowe and get to talk to the two of them. On
paper it all made sense but nothing beats 2 years of driving to see if it
really works as advertised, so to speak. Since installing the system in
Aaron's car, it's been bulletproof and hasn't been touched. In other words,
rock solid reliable. Starts and runs from cold just like a modern day car.
Better fuel economy and some performance increase.
While some of these components
are available at your local junk yard or new car dealer, Rick and John have engineered unique components specific to our cars. You
won't find the carb adapters or the TPS mounting bracket anywhere but from
Rick............ and John's distributor conversion parts are his own design
and definitely not "do it yourself" unless you also happen to be an engineer
with computer aided drafting design capability and access to a CNC machine
shop. John also supplies years of knowledge in the ECM/TBI area to ensure
that your chip is properly calibrated for your car and driving needs.
As I've researched this conversion, I'm amazed
at how common this TBI conversion is in the classic/old car world at large.
While Rick's focus is on British cars, John has kits for everything from
Jeeps to GM products to VW, Porsche, MG and Triumph. This conversion isn't for everyone but neither is a Toyota 5
speed or a Nissan differential but they all work well. Now I wish I could
afford those two upgrades!
What made this decision easier was my wife's
suggestion that she give it to me as a combined birthday/Christmas present
if I build her a new PC as a combined birthday/Christmas present. Sounded
like a deal to me! How's that for a wife?
So....now I'm holding my breath, crossing my
fingers and trusting both Rick andJohn to hold my hand, as needed,
through the process. "
Ok...so what makes up this system? As mentioned
before there's two ordering components:
Rick
Patton and John Wilson
Rick's Part:
Two carb adapters to
hold the GM fuel injectors |
A GM Throttle Position
Sensor (TPS), Adapter and Block Off Plates |
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What I love about dealing with people like Rick or
Dan Masters or Jeff Palya is the creativity they show in creating products to
make our cars better as well as the outstanding quality of their product. I feel
that they take great pride in what they produce and won't ever provide an
inferior product.
I won't receive John's components for a
few weeks as each one is custom built for the application, but here's what he
includes:
1) CNC milled distributor electronic ignition
conversion parts;
2) two reconditioned GM TBI fuel injectors;
3) New CNC fabricated adjustable fuel pressure regulator with pressure gauge;
4) All new coolant, MAP, and O2 sensors (exhaust bung included);
5) A reconditioned GM ECM (engine control module) with new custom built wiring
harness;
6) A high quality frame mounted EFI fuel pump with mounting bracket and
fittings;
7) A custom flash calibration chip will be included and programmed for the
injectors and engine size for a stock engine. Further tuning on non-stock
engines is included as part of the optional flash chip programmer below;
8) An ALDL cable that converts a laptop computer (laptop computer furnished by
the customer) into a GM ECM scantool. My cables have a 9 pin serial connector so
your laptop must have a 9 pin serial port. 9 pin serial ports are typically
found on older laptops only. If you only have USB ports you'll need a 9 pin
serial to USB adapter cable commonly found at computer stores. A scantool
displays engine sensor information and allows you to diagnose and tune your GM
EFI system.
OPTION: An optional flash chip programmer allows the customer to reprogram the
calibration chip at his location. This device works off a USB port and does not
need a separate 120V power adapter like most programmers, so you can use it in
the car with a laptop if desired. You will use the programmer to reprogram the
flash chip with calibration files that I send you via email. This allows the
customer and I to tune the system together. The flash chip programmer option is
$125.Moving on to
Removing Stuff
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