TPI 305 to 350
#1
Junior Member
Thread Starter
Join Date: Jul 2001
Location: San Diego, CA
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
TPI 305 to 350
Hello posted this in TPI board but will post here to just in case to see what kind of info I get. Short and sweet... Did a swap on my 85 Z28 that came with a TPI 305 connected to a 700r4 tranny. Now there is a 350 sitting under the hood but she is running sorta rough. I have not replaced the injectors so she is still runnin off the 305 stock injectors. Only thing changed was the 305 to 350 plain and simple. What can I do to take FULL advantage of all 350 cubic inches? Also I am looking to swap in a cam that will give it a nice RUMBLE at idle. You can also check out my post with the same title under TPI if you want.
#3
TGO Supporter
Join Date: Jul 1999
Location: The Bone Yard
Posts: 10,907
Likes: 0
Received 3 Likes
on
3 Posts
Car: Death Mobile
Engine: 666 c.i.
The one problem you have is the 85 ecm. It is not the same as the 86-89 and the 85 has VERY limited information about it. In fact, I don't even think there is a "definition" for it to change the eprom.
And yes, eproms are going to be a problem with the 85 ecm. If you wish to retain MAF and get an optimal BIN, switch the the later ecms, use the ARAP BIN to program your eprom and disable the cold start injector.
And yes, eproms are going to be a problem with the 85 ecm. If you wish to retain MAF and get an optimal BIN, switch the the later ecms, use the ARAP BIN to program your eprom and disable the cold start injector.
Thread
Thread Starter
Forum
Replies
Last Post
Fast355
DFI and ECM
14
12-02-2016 06:33 PM
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
08-12-2015 03:41 PM