TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

305 TBI-350 TBI Question/help advice needed

Thread Tools
 
Search this Thread
 
Old Feb 24, 2012 | 02:53 PM
  #1  
Jesse076's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2008
Posts: 20
Likes: 0
From: San Jose, CA
Car: 89 Camaro Vert all stock
Engine: 350 TBI(previously 305 LO3)
Transmission: 700R4
305 TBI-350 TBI Question/help advice needed

Hello everyone im sure the above topic has been covered numerous times. I have read through some of the messages but I do not find any answers that fit my question/issue.
OK I blewthe 305 TBI that came in my 89 camaro convertable. I have taken out the old engine and replaced with a 350 TBI from a 91 Truck or Van not sure.
So anyways what I am planning to re-use from the 305 is the dist, throttle body,305 CPU. The 350 has the knock sensor in the block already.

So my question is what else i need (the cheapest route) to get her going again? I am going to re-use the stock 305 exhaust manifolds so I can hook up all the smog crap( CA car). The donor car also had the 700R4 as this one does. I am not trying to high performance or anything like that just want her to run and be my daily driver as before.
I dont know if I really need to change the CPU or add the 350 "chip".
Again I want to use all the 305 TBI stuff to avoid any further headaches/costs.
If I do need to change the CPU etc would the smog guy notice its a different CPU then the stock 305?
I seen a whole 350 TBI sensors/injectors set for about 70$ on ebay also seen a 350 TBI CPU on ebay for around the same...so would this be the cheapest easiest route? OR can I get by with what I have?
Thanks for all your help.
Reply
Old Feb 24, 2012 | 03:27 PM
  #2  
UnderCover89TBI's Avatar
Supreme Member
iTrader: (25)
 
Joined: Feb 2006
Posts: 7,260
Likes: 5
From: Manteca,California. Nor Cal.
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: 305 TBI-350 TBI Question/help advice needed

There is a sticky thread for this up on top of this part of the site. like 3 or 4 threads above. You need to change to a 350 injectors, 350 Chip, 350 knock sensor, 350 knock control module. that is all you really need to do. It will run witha 305 chip and computer. could be a little lean. throttle bodies flow the same so but the 350 tbi has bigger injectors. hope this helps.
Reply
Old Feb 24, 2012 | 04:53 PM
  #3  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: 305 TBI-350 TBI Question/help advice needed

and there are certain ecm's that will run a 350 and the rest will not.

https://www.thirdgen.org/forums/tbi/...-350-swap.html
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jhawkeye
Engine Swap
5
May 25, 2022 06:33 PM
IROCZ1989
North East Region
7
Jan 24, 2016 03:55 PM
justin57
TBI
30
Aug 20, 2015 07:05 PM
86camaroman201
Fabrication
0
Aug 11, 2015 10:39 PM
GEmrsn
Interior Parts Wanted
3
Aug 8, 2015 03:15 PM




All times are GMT -5. The time now is 02:05 AM.