ECM upgrade (1227730) for stock 2.8 (Page 6/107)
x-thumpr-x JAN 14, 11:28 AM

quote
Originally posted by Knight:

I'm getting excited at the possibility of putting a 3.4 or a 3400 with 4-speed auto. I want to upgrade my current ECM in my 86 2.8. and place an upgrade engine /transmission in my engineless 88.




If you plan on dropping in a 3400, you will need to reroute the complete harness for the motor. We've done two 3400 swaps and using the 7730 ecm for our set-up and wroks just great. I've dyno'd at 175hp and the wheels. Have a few ideas to open it up a little more while still N/A. I'm sure Darth would be able to program a chip for you no problem. I have a friend that did mine, he's used to put 3400's in J-bodies. Also, you don't want the tranny that comes with the 3400, it's electronic controlled, try to find a 4T60 that uses a kick-down cable. Mines a 5 speed, so a little less wiring to do.

My 3400 install


2nd swap which uses stock 2.8 timing cover and accesories.
This images is larger than 102400 bytes. Click to view.

Nice work on the upgrade Darth, already have someone that might be interested in doing this. Must add this to my fav also.




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[This message has been edited by x-thumpr-x (edited 01-14-2007).]

Knight JAN 14, 04:38 PM
Thanks guys. Very helpful.
The 3400 won't run an electronic transmission? Crap! I wanted a strong transmission that could handle the torque and was planning on a 4T65e. Can a 4T60 be beefed up with 4T65e internals?
And that 3400 install -- DAMN that is what I am talking about. I want to have the intake and valve covers painted red like your second picture. Please explain about rerouting the engine harness.
Cajun JAN 14, 05:32 PM
Darth,

Is it correct to assume the 7730 ECM upgrade with work with a 95 Camaro 3.4 engine that I'm currently installing into my 86GT with OD 4-speed auto transmission. The 3.4 will be a hydrid, 3.4 displacement & 2.8 heads, intake and ignition system, etc. If that is the case, the 7730 ECM upgrade will work with the engine upgrad I'm also interested in doing the upgarde.

Thanks for you work on the subject and provide the group the information.

Regards,
Mike
Darth Fiero JAN 14, 05:52 PM

quote
Originally posted by Knight:

Thanks guys. Very helpful.
The 3400 won't run an electronic transmission? Crap! I wanted a strong transmission that could handle the torque and was planning on a 4T65e. Can a 4T60 be beefed up with 4T65e internals?
And that 3400 install -- DAMN that is what I am talking about. I want to have the intake and valve covers painted red like your second picture. Please explain about rerouting the engine harness.



The 3400 V6 will work with the 4T65-E transmission but you must use an OBD-2 computer (99-up), or use an aftermarket TCM (transmission control module). The 7730 ECM does NOT have the ability to control an electronic transmission.

The 440-T4/4T60 transmissions can accept some internal upgrades, but it is unclear if they can be built as strong as a 4T65-E can be. How much power is your 3400 engine going to be making?
Darth Fiero JAN 14, 05:56 PM

quote
Originally posted by Cajun:

Darth,

Is it correct to assume the 7730 ECM upgrade with work with a 95 Camaro 3.4 engine that I'm currently installing into my 86GT with OD 4-speed auto transmission. The 3.4 will be a hydrid, 3.4 displacement & 2.8 heads, intake and ignition system, etc. If that is the case, the 7730 ECM upgrade will work with the engine upgrad I'm also interested in doing the upgarde.

Thanks for you work on the subject and provide the group the information.

Regards,
Mike



The 7730 ECM will work with any pushrod V6 PFI engine. Use of a distributor or DIS ignition system will determine what code mask (programming) you must use. The programming can be adjusted to work with a wide range of mods you install on the engine. The 7730 ECM will work with a 440-T4/4T60 non-electronic auto OD transmission.
Knight JAN 15, 02:15 AM
I am hoping for 400+. The members on 60degree6.com were discussing bending a crank beyond that. I am going to look into a bearing cradle to prevent this and improved oiling as one episode was blamed on spinning a rod bearing. I was hoping to do a paddle shift conversion using an aftermarket TCM and a kit. Just can't remember the link.

[This message has been edited by Knight (edited 01-15-2007).]

Joseph Upson JAN 15, 06:58 AM

quote
Originally posted by Knight:

I am hoping for 400+. he members on 60degree6.com were discussing bending a crank beyond that. I am going to look into a bearing cradle to prevent this and improved oiling as one episode was blamed on spinning a rod bearing. I was hoping to do a paddle shift conversion using an aftermarket TCM and a kit. Just can't remember the link.



If you think there will be a problem with crank strength some of the 3500 V6s have steel cranks that can be turned down to the proper throw diameter, look for the numbers 7484 stamped on the end of the crank snout to know for sure that's what the engine has without having to do much more than remove the harmonic balancer retaining bolt. If you plan on turbocharging it would be easier to use the entire short block if the compression ratio will be in the range you would like. It will not be as low as the cast iron heads on the 3400 would be since the 3500 heads have a slighly larger combustion chamber than what's found on the 3400. The short block accepts a distributor also.

The late model fwd blocks have substantial main bearing reinforcement via the sidebolts through the oil pan and the windage tray bolted to the caps.

[This message has been edited by Joseph Upson (edited 01-15-2007).]

Knight JAN 15, 03:58 PM
What are the differences between the 3500 non-VVT and the 3400. Will the 3500 replace the 3400. I know that the 3900VVT and de-stroked 3500VVT are a different engine than the 3500 non-VVT. Can't remember if its both the block and heads. I just don't want to deal yet with all the computer and electronic issues that have yet to be fully dealt with for the latest GM V6 engines. Someone on 60degree6 has a cable conversion for the 3500's drive by wire throttle. I think it is mentioned in the thread about a 3500 head on a 3400 short block hybrid.
ohio86se JAN 15, 09:18 PM
I just knew that was your car .......hello Bob


quote
Originally posted by Capitol City Fiero:

Ryan:

You got a lot of press on my swap, just a follow up on the car:

440T4 2000rpm @70mph
starts good with no cold start injection even below 20 degrees
idle is at a steady at 700rpm
car runs strong

mpg is 28 city and 35 hwy
car runs on 87 octane fuel as well

440T4 seems to have a final drive of about 284

again thanks Ryan, we love the upgrades

well worth the money for anyone who has a stock 2.8 3 speed automatic




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" DRIVE IT LIKE YOU LOVE IT"

Darth Fiero JAN 16, 01:12 AM
Haven't had much time to put togther a rewiring instruction sheet because I am knee-deep in the next swap. I WILL get to it at some point and will post it to my website when it is ready. Might be a couple of weeks tho.

-ryan