Trick450r

iTrader: (7)

How hard is the basic kit to install wiring wise? I'm not a rookie but it seems like it could be quite the headache.


My only other question is why would you buy an ls1 now? ha

Puck

iTrader: (17)

The heads and the aftermarket :p.

Gimme an LTX all day though!!

LT1STROKER

iTrader: (3)

I BELIEVE I AM PRETTY MUCH SOLD ON THIS CONVERSION NOW; THANKS FOR THE REPLY.
NOW LASTLY 2 QUESTIONS:

1.THE PRICE ON THE WEBSITE IS FOR A COMPLETELY NEW WIRING HARNESS, OR IS IT TO REWORK MY CURRENT HARNESS? I AM FOR SOME REASON QUESTIONING MY ABILITY TO PERFORM THE REWORKING OF THE HARNESS. IF IT IS FOR A NEW HARNESS, DO YOU OFFER AN OPTION TO REWORK MY CURRENT STOCK HARNESS?
2. I NOTICED YOU SAY YOU USED THE MOATED ROAD RUNNER TO TUNE A 396 LT1 AT TPIS. IS THE PURCHASE OF EFI LIVE OR HPTUNERS REQUIRED IN ADDITION TO THE PURCHASE OF THE ROAD RUNNER SETUP, (I.E. $599.00 FOR THE ROAD RUNNER+799.00 FOR THE EFI LIVE V2) OR WILL IT ONLY REQUIRE THE (I.E. 599.00 ROAD RUNNER SETUP + 199.00 EFI Live Realtime License)?
FOR KICKS ARE YOU WILLING TO GIVE THE NUMBER TO THAT TESTED SETUP, AND HIGH POINTS OF THE BUILD, LIKE COMPRESSION, CAM SIZE, HEADS AND STOCK INTAKE OR SINGLE PLANE.
THANKS

FLP

The price for the harness is a completely new harness, the do offer a 'DIY' kit but after messing with my harness for a while the age of it made me decide I was better off just going with the new one.

You have to figure even the NEWEST LT1 harness is now 13 years old, taking it off reworking it and reinstalling really had me worried about broken/cracked wires and trying to pin down a short/dead wire.

S10Wildside

EFI Connection does not rework used harnesses. They are typically messy, dirty, and sometimes corroded inside. It's not worth the risk (to us) of putting several hours and materials into a 13+ year old harness and then during the installation (or months later) the old harness develops a break that causes troubleshooting phone calls and email for unrelated work performed. This is one of the reasons why we stress that the DIY harness kit is truely "DIY". Of course we still receive and respond to email to assist those who have a few questions. That's never a problem.

FIRST you need tuning software. Let's say you buy EFILive V1 for $549.
SECOND you should consider a wideband O2 sensor. We use an Innovate LM2.
The Moates Road Runner PCM is an optional component that requires a $199 license to use with EFILive.

Let's go back to that wideband O2 recommendation
A wideband O2 is very important to tune an engine. Now you could try to tune using feedback from fuel trims, but that's not a very good way to go about it. We don't offer tuning services because the weeks continue to be full with harness related work. We do our thing, and then let the tuners do their thing. However, when someone calls or emails to ask something like "My engine stumbles at 4,000 rpm and then dies. What could be wrong?" For me to help answer that question, I would first ask "What is the air/fuel when the engine first begins to stumble?" Thinking there is either a tuning issue or fuel delivery issue. Only a wideband O2 will tell you the air/fuel ratio.




The engine made 530hp on the Super Flow dyno at TPIS. This is a 15hp improvement over the LT1 PCM and MSD optispark tested just before the LS1 PCM conversion on the same dyno. Sorry, I don't have the engine specs.

S10Wildside

That 396ci LT1 was just installed in a beautiful 1985 Camaro.

We're shipping the engine harness for the car today.



It will be featured in an upcoming (possibly the next) issue of Street Thunder magazine (http://www.streetmachineclub.com). It will definitely be worth getting a subscription to see the details of this car.

396ci LT1
EFI 24x Conversion
58mm Drive by Wire Throttle
T56 Transmission

97LT1

iTrader: (3)

Have my order placed for drive by wire 24x with monoblade! I am excited!

Phantom383

iTrader: (2)

I start pulling my car apart tomorrow

v7guy

iTrader: (1)

wasn't there mention in another thread that you could go in and change the cylinder fire order with EFI live or hptuners so that there wasn't any issue with swapping wiring and having the ecm think it was adding or pulling fuel from the wrong bank?
Is this an option from the tuning side of things?

S10Wildside

Yes, but first let's back up a few steps and look at the LS1 PCM and take out the "LS1" part of it.

This PCM (GM# 12200411) was used in the 2001-2002 Express Van. That vehicle uses a Gen I SBC with single coil and distributor; not an LS engine. For proper firing order, GM did two things:

• When compared to an LS1 harness, injectors 2&3 and 7&4 were swapped at the PCM to fix the firing order. This gets the injectors to fire at appropriate times.
• When compared to an LS1 calibration, GM changed the Injector Bank Assignments table to assign the appropriate injector to each bank. This allows for fuel trims (or closed loop).

Now take that one step further and be sure that coils 2&3 and 7&4 are swapped at the PCM. GM never had to do this because the Express Van was a single coil and distributor ignition system. Maybe they had parts left over from the 90s?

I'm taking the time to explain this because this is not a "hack". It is an appropriate way of fixing the firing order and closed loop operation...in GM fashion.

Phantom383

iTrader: (2)

Thanks!

T/A KID

iTrader: (12)

S10Wildside or anyone else I am basically done with my conversion, but I still need plug wires. I thought I could get a standard LSX plug wire to work, but thats a no go. Looks like I'll need a tight 90 degree on the plug and a standard end for the LS2 coils.

Any recommendation on where to get the wires?

When I get done with this thing, I have a video of it up and running, should be pretty wicked

FLP

MSD 32079
http://www.msdignition.com/uploadedF...structions.pdf

Make your own set, use these alot for custom stuff. You just pick which end you need for the spark plug measure from there, crimp on the LS coil end and you are good to go.

Each length of wire includes a 90* end and a multi-angle end.

It is what I will be using for my 24x setup.

YSILT1

iTrader: (6)

I had Scotts Wires make me a custom set.

Here is a pic of them.

S10Wildside

After every installation, we make our own using...

• MSD 3304 45 degree coil terminal and boot kit (quantity of 2 per package)
• MSD 8850 90 degree spark plug terminal and boot kit (quantity of 9 per package)
• MSD 34013 25ft length 8.5mm black wire
• MSD 35051 Crimp Tool

the_merv

iTrader: (88)

Neat..I didn't know you could change the Firing Order..that's good to know.

T/A KID

iTrader: (12)

FLP thanks for the info, thats probably the route I am going to go with, S10's route is around 160.00 (tool is $70.00) that way would be cheaper if I did multiple plug wires.

FLP

It is much easier if you use the MSD crimp tool instead of the cheaper 'plier type' crimpers but it does work.

T/A KID

iTrader: (12)

Update:
After some debate, I decided to order a new harness. After reworking the majority of my old harness, I felt a little more secure with a brand new one. Would my old harness work, Probably, but its over 14 years old now, more of a piece of mind thing.

I have about a 3 week wait and its going on. I have a MSD plug wire kit, just have to cut them to length and install. Can't wait to get this thing going again, haven't drove it in over a year.

BOLO

iTrader: (40)

Great! I didn't realized that there's already a thread on this. Keep us updated. I'm very interested.