Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

Ramjet 350 in 91 Rs

Thread Tools
 
Search this Thread
 
Old 09-01-2011, 11:02 AM
  #1  
Member
Thread Starter
iTrader: (1)
 
porkenstein's Avatar
 
Join Date: Apr 2009
Location: Madison, SD
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 RS Convertible
Engine: LSA
Transmission: 6060
Axle/Gears: 373
Ramjet 350 in 91 Rs

I am putting a ramjet 350 in my 91 RS. Only question is I know it uses it's own computer. I will be running a tremec for transmission. What if anything do I need to do with my onboard computer as it isn't used for the engine. Will it be throwing any codes or can I just unhook it.
Old 09-01-2011, 05:04 PM
  #2  
Moderator

iTrader: (14)
 
five7kid's Avatar
 
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes on 34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The ECM runs the fuel pump, which you can rig up in other ways to work. It would be simpler to just leave the ECM in there - it isn't going to get in the way.

The radiator fan is run by a switch in the passenger side head - you'll need that. I believe the speedometer was run from the VSS through a buffer box, so if you leave all that in place it should be fine. If your Tremec has a speedo cable drive instead of a VSS, you'll have to get a transducer to give the speedo a signal.
Old 09-01-2011, 08:36 PM
  #3  
Member
iTrader: (1)
 
musicfreako's Avatar
 
Join Date: Sep 2009
Location: Allegan, MI
Posts: 199
Likes: 0
Received 1 Like on 1 Post
Car: 89' camaro RS TTOP
Engine: 92 5.0tpi Bosch III, headers, msd
Transmission: 700r4 built. trans go. 2,300 stall
Axle/Gears: 3:73 posi ls disc brake conversion
Re: Ramjet 350 in 91 Rs

Originally Posted by five7kid
The ECM runs the fuel pump, which you can rig up in other ways to work. It would be simpler to just leave the ECM in there - it isn't going to get in the way.

The radiator fan is run by a switch in the passenger side head - you'll need that. I believe the speedometer was run from the VSS through a buffer box, so if you leave all that in place it should be fine. If your Tremec has a speedo cable drive instead of a VSS, you'll have to get a transducer to give the speedo a signal.
Can you shed light on what this transducer is? Sorry to hi jack. Been searching everywhere. Thanks! !!!!
Old 09-02-2011, 09:09 AM
  #4  
Moderator

iTrader: (14)
 
five7kid's Avatar
 
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes on 34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
They are available from summitracing.com.
Old 09-02-2011, 09:22 AM
  #5  
Member
iTrader: (1)
 
musicfreako's Avatar
 
Join Date: Sep 2009
Location: Allegan, MI
Posts: 199
Likes: 0
Received 1 Like on 1 Post
Car: 89' camaro RS TTOP
Engine: 92 5.0tpi Bosch III, headers, msd
Transmission: 700r4 built. trans go. 2,300 stall
Axle/Gears: 3:73 posi ls disc brake conversion
Re: Ramjet 350 in 91 Rs

Thanks!
Old 09-09-2011, 01:02 PM
  #6  
Junior Member
 
jimcairns's Avatar
 
Join Date: Jan 2005
Posts: 37
Likes: 0
Received 0 Likes on 0 Posts
Re: Ramjet 350 in 91 Rs

I am also workin on a Ram Jet 350 in my 1988 swap. How did you address the engine oil pressure - fuel pump relay?
Old 09-09-2011, 08:27 PM
  #7  
Member

 
89RJcamaroRS's Avatar
 
Join Date: Mar 2002
Location: ma
Posts: 174
Likes: 0
Received 0 Likes on 0 Posts
Car: 1989 camaro RS
Engine: RAMJET 350
Transmission: RAPTOR 700-R4
Re: Ramjet 350 in 91 Rs

if i remember correctly the ramjet computer has a fuel pump turn on wire just tie in to your existing pump relay in engine bay
Old 09-10-2011, 09:04 AM
  #8  
Member
Thread Starter
iTrader: (1)
 
porkenstein's Avatar
 
Join Date: Apr 2009
Location: Madison, SD
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 RS Convertible
Engine: LSA
Transmission: 6060
Axle/Gears: 373
Re: Ramjet 350 in 91 Rs

Since the ramjet has it's own computer and there are things it cant control I will also need the original computer for other things. Since the original computer is not performing all functions will it throw codes such as check engine. If it does what would be the work around?
Old 09-12-2011, 11:25 AM
  #9  
Moderator

iTrader: (14)
 
five7kid's Avatar
 
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes on 34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Take out the SES light bulb.
Old 09-12-2011, 12:18 PM
  #10  
Member
Thread Starter
iTrader: (1)
 
porkenstein's Avatar
 
Join Date: Apr 2009
Location: Madison, SD
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 RS Convertible
Engine: LSA
Transmission: 6060
Axle/Gears: 373
Re: Ramjet 350 in 91 Rs

Originally Posted by five7kid
Take out the SES light bulb.
That sounds too simple
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TX-SleeperC5
Firebirds for Sale
25
02-24-2016 01:34 PM
FormulasOnly
Tech / General Engine
3
09-10-2015 09:07 PM
john204481
Engine Swap
0
09-07-2015 03:22 PM
FtrSpeedy
Tech / General Engine
2
09-07-2015 12:11 PM
Formula_88AE
Engine Swap
1
09-03-2015 01:47 PM



Quick Reply: Ramjet 350 in 91 Rs



All times are GMT -5. The time now is 03:01 PM.