LT1-LT4 Modifications 1993-97 Gen II Small Block V8

My EFI 24x Install Underway.

Thread Tools
 
Search this Thread
 
Old 06-11-2012, 10:06 AM
  #41  
TECH Fanatic
Thread Starter
iTrader: (4)
 
95mysticta's Avatar
 
Join Date: Aug 2007
Location: Oshawa, Ontario
Posts: 1,365
Likes: 0
Received 10 Likes on 4 Posts

Default

The reality is you dont do it for the power unless you dont care about spending the money. Ive seen a few before and results making up a litte more power which is a bonus. Ive been through many opti's in the ownership of my car along with icm, coil, ignition switch issues, etc. I did it because ive dumped a tone of cash into my ride and i want to have the thought in the back of my head is it going to start missing or make it through a cruise. This is a WAY more reliable setup and now running through obd2 i can monitor what cylinder is missing arcing etc and coils are much cheaper and less work to replace than an opti. Tunning options are wide open as lt1 tuners are basically extinct where i live. The faster pcm with more features makes it better for dialing in tunes to get the most efficient running engine you can get.

The swap was very straight forward to do and the harness wasnt very hard to build which saved me alot of cash too. Had my local tuner set in a startup tune and as you see it fired up first try and has since been running decent even on the current tune. Hope to have it back in the next few weeks with some results!
Old 06-11-2012, 12:43 PM
  #42  
Launching!
iTrader: (2)
 
Bigtoyz's Avatar
 
Join Date: Apr 2012
Posts: 219
Likes: 0
Received 1 Like on 1 Post
Default

What I like about doing that your able to live tune it also. But I didnt know that people are getting a few more hp out of the 24x conversion?
Old 06-11-2012, 12:54 PM
  #43  
TECH Fanatic
Thread Starter
iTrader: (4)
 
95mysticta's Avatar
 
Join Date: Aug 2007
Location: Oshawa, Ontario
Posts: 1,365
Likes: 0
Received 10 Likes on 4 Posts

Default

I already have a good idea its going to pick up some power over my old numbers. I had an issue with it not wanting to pull past 6k, we hope to solve that before it hits the dyno. One dyno in particular that was a perfectly running 388 stroker eith ported heads and xfi 280 cam made 390rwhp before and 408rwhp after the swap. Im sure something was up with his tune but 18rwhp is pretty substantial from a working opti setup.
Old 06-11-2012, 01:31 PM
  #44  
TECH Regular
iTrader: (4)
 
Tbird232ci's Avatar
 
Join Date: Jun 2009
Location: Cockeysville, Md
Posts: 408
Likes: 0
Received 2 Likes on 2 Posts

Default

More times than not, when you're doing the 24x conversion, you're replacing an opti with a worn cap, or some old plug wires, or you coil is getting a little tired, and so on. Think about it, the newest of our cars is 15 years old, and in my case, my coil is factory with 178K miles, the opti and cap have 50K miles on it, plugs and wires have 35K miles on it, so in my case, I may replenish some horsepower.

Not to mention, a lot of guys are going from a mail order tune, to legit dyno/street tunes.

The swap itself may not give you power, but the tune just might.
Old 06-11-2012, 10:06 PM
  #45  
Launching!
iTrader: (6)
 
daddyoisback's Avatar
 
Join Date: Apr 2012
Posts: 218
Likes: 0
Received 0 Likes on 0 Posts
Default keep the updates coming

Keep the updates coming for the guys like me that are going to do the swap. Just getting all the odds n ends together now so i've been lurking around every 24x post i can find.
Old 06-12-2012, 09:49 AM
  #46  
TECH Enthusiast
iTrader: (2)
 
JoeliusZ28's Avatar
 
Join Date: Dec 2005
Location: MI
Posts: 740
Received 1 Like on 1 Post

Default

Originally Posted by daddyoisback
Keep the updates coming for the guys like me that are going to do the swap. Just getting all the odds n ends together now so i've been lurking around every 24x post i can find.
X2 I am planning on starting the swap late august.
Old 06-12-2012, 09:57 AM
  #47  
TECH Fanatic
Thread Starter
iTrader: (4)
 
95mysticta's Avatar
 
Join Date: Aug 2007
Location: Oshawa, Ontario
Posts: 1,365
Likes: 0
Received 10 Likes on 4 Posts

Default

Very cool its good to hear more guys are going this setup! Any questions just ask.
Old 06-12-2012, 04:12 PM
  #48  
Staging Lane
iTrader: (1)
 
lymlyt96's Avatar
 
Join Date: Oct 2010
Location: wherever the LT1 takes me
Posts: 64
Likes: 0
Received 0 Likes on 0 Posts
Default

I haven't seen anything on where the oil pressure sensor wire goes I was told it should connect to a light brown wire in the harness that goes through the firewall to connect directly to the oil pressure gauge. Is this where you connected that sensor or did I miss somethin and it goes in the pcm?
Old 06-12-2012, 05:39 PM
  #49  
8 Second Club
iTrader: (4)
 
slckstr96's Avatar
 
Join Date: Dec 2006
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts

Default

Not to steal the thread but I just finished my 24x build and was wondering if anyone could me how to make the tach work on my 96 cluster. I have HP tuners but can't seem to figure out how to make it work, its just dead when I fire it up. Every other gauge works but not the tach
Old 06-13-2012, 05:37 PM
  #50  
TECH Fanatic
Thread Starter
iTrader: (4)
 
95mysticta's Avatar
 
Join Date: Aug 2007
Location: Oshawa, Ontario
Posts: 1,365
Likes: 0
Received 10 Likes on 4 Posts

Default

That is correct the oil level is a brown wire and goes into LS1 Blue 70.

As for the your question about your tach wire. Do you have it wired up properly from LT1 Red 13 to LS1 Red 10? Its a single White Wire and my guess is if you do not have it wired properly that you have a connection problem or its damaged. Did you use a different year harness for the swap into your 96? All years have differences between that may cause this issue.
Old 06-13-2012, 06:56 PM
  #51  
8 Second Club
iTrader: (4)
 
slckstr96's Avatar
 
Join Date: Dec 2006
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts

Default

the engine harness is from a 99-02 f body but the dash harness is stock
Old 06-13-2012, 10:08 PM
  #52  
Launching!
iTrader: (6)
 
daddyoisback's Avatar
 
Join Date: Apr 2012
Posts: 218
Likes: 0
Received 0 Likes on 0 Posts
Default

got a harness lined up now still need the pcm almost had some coils but bidding got to high for me nice set of truck coils. I'll b asking questions once i get started with the repinning of my harness. car is a 2002 (was a v6) has a 1997 LT1 in it. the harness is a 94 the pcm is going to b a 0411 does it matter what year on the pcm? got a timing cover too 96' member on here really nice pc.
Old 06-14-2012, 08:02 AM
  #53  
TECH Fanatic
Thread Starter
iTrader: (4)
 
95mysticta's Avatar
 
Join Date: Aug 2007
Location: Oshawa, Ontario
Posts: 1,365
Likes: 0
Received 10 Likes on 4 Posts

Default

I am not familiar with the ls1 harness so your going to have to do some digging and make sure the schematics are right. Sorry i cant answer your problem entirely.

The 0411 pcm can be found in alot of 99+ ls engines from cars to trucks and year doesnt matter. If your engine is a 97 it would have the correct timing cover unless you went to an older one?
Old 06-14-2012, 02:26 PM
  #54  
Staging Lane
iTrader: (1)
 
lymlyt96's Avatar
 
Join Date: Oct 2010
Location: wherever the LT1 takes me
Posts: 64
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the reply I found a diagram it was a tan wire inside the c220 connector for the oil pressure gauge.
Old 06-18-2012, 08:56 PM
  #55  
Launching!
iTrader: (6)
 
daddyoisback's Avatar
 
Join Date: Apr 2012
Posts: 218
Likes: 0
Received 0 Likes on 0 Posts
Default

yeah back when i got the motor is was put in my 93' so the shop had to put the older cover back on im going to b useing a 94' Lt1 harness i dont think the 02' v6 harness wld even b close sorry i txt alot so i type like that without thinking
Old 06-18-2012, 10:24 PM
  #56  
TECH Fanatic
Thread Starter
iTrader: (4)
 
95mysticta's Avatar
 
Join Date: Aug 2007
Location: Oshawa, Ontario
Posts: 1,365
Likes: 0
Received 10 Likes on 4 Posts

Default

No worries

Just got another shitty update my Accel injectors are taking a **** and not keeping up with the motor so now my tuning is onhold again till i get a set. Fantastic!



Quick Reply: My EFI 24x Install Underway.



All times are GMT -5. The time now is 01:18 PM.