9th injector delete?
#1
Junior Member
Thread Starter
Join Date: Jan 2016
Location: NJ
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Car: '86 Trans Am
Engine: 355 TPI
Transmission: 700r4
Axle/Gears: 3.27
9th injector delete?
I bought an 86 trans am with a 350 swapped into it and the 9th injector has been deleted. I had a chip custom tuned for the car and even with the chip I struggle to get the car started when the engine is cold. Can anybody tell me why people do the 9th injector delete? Is there a benefit from it? I really want this car to be easy to start in the morning. Besides that, it drives great with the new chip and feels powerful.
#2
Senior Member
iTrader: (5)
Join Date: Jan 2009
Location: Golden, CO
Posts: 887
Likes: 0
Received 11 Likes
on
9 Posts
Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: 9th injector delete?
Reasons for CSI/9th injector delete... the switch broke. the fuel line got damaged. the injector isn't working. the wiring got hacked. it's leaking. You want to tidy up the engine. You are upgrading the ECM/chip and will handle the cold start enrichment through the main injectors.
Benefit... if stock is working, why "fix it" to make a problem? It could have economy/emissions benefit, but I don't recall conclusions about that.
Did you tell your chip tuner about the CSI delete? Did they program for that, or assume the CSI is still there? How radical is the engine?... Does it need more cold enrichment than stock?
Benefit... if stock is working, why "fix it" to make a problem? It could have economy/emissions benefit, but I don't recall conclusions about that.
Did you tell your chip tuner about the CSI delete? Did they program for that, or assume the CSI is still there? How radical is the engine?... Does it need more cold enrichment than stock?
#3
Junior Member
Thread Starter
Join Date: Jan 2016
Location: NJ
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Car: '86 Trans Am
Engine: 355 TPI
Transmission: 700r4
Axle/Gears: 3.27
Re: 9th injector delete?
Thanks a lot! And yes I did tell the tuner about the injector delete. I also gave him the cam specs and told him that it's a 350 as opposed to a 305. He said that the chip would need to be tuned for the injector delete, the cam, and the 350's 22lb injectors
Thread
Thread Starter
Forum
Replies
Last Post