DIY PROM Do It Yourself PROM chip burning help. No PROM begging. No PROMs for sale. No commercial exchange. Not a referral service.

Custom prom compared to DFI???

Thread Tools
 
Search this Thread
 
Old Oct 23, 2001 | 12:41 PM
  #1  
My90Iroc's Avatar
Thread Starter
Member
 
Joined: Nov 2000
Posts: 490
Likes: 0
From: E. Patchogue, NY
Car: '90 Iroc
Engine: 305 TPI
Transmission: 5 spd
Custom prom compared to DFI???

Is DFI really advantageous to using the stock computer with a custom chip to match the application? I'm building a 385 cu. in. motor, but I'm not sure if I'll have enough to get the SR intake right away, so I may leave the LTR setup until funds allow SR. If this is the case, I'm going to have to get the chip done once, then again when the SR gets on there. I am considering burning the chip myself, but if I have the time to do that will be the determining factor. My other idea is that if I have the $$ for the SR, maybe I should wait on that and get DFI first, then add the SR later. What are your thoughts on this? What exactly do you need for DFI and does everything come in the kit (like you see in Jeg's) or is there extra stuff needed also? The car is a '90 (obviously) so it currently uses Speed Density.

------------------
'89 Camaro RS 6cyl. auto, don't know how much longer I'll have it.
'90 Iroc TPI 305, 5 spd B&M Ripper shifter, hopefully I can rob a bank or something and get more
www.geocities.com/irocnroll90
Reply
Old Oct 23, 2001 | 01:49 PM
  #2  
Scott_92RS's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 1,817
Likes: 1
From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
Sorry, I cant really anwser your questions, but I do have something you may like I've got a SuperRam for sale. It includes the Plenum, Runners, and manifold. You can reuse your stock Throttle body, injectors, and fuel rail. You will need gaskets and a couple of your old intake bolts (I am missing 2 of the ARP stainless steel ones). Email me privately if you are interested.
Reply
Old Oct 24, 2001 | 03:37 PM
  #3  
My90Iroc's Avatar
Thread Starter
Member
 
Joined: Nov 2000
Posts: 490
Likes: 0
From: E. Patchogue, NY
Car: '90 Iroc
Engine: 305 TPI
Transmission: 5 spd
anyone??

------------------
'89 Camaro RS 6cyl. auto, don't know how much longer I'll have it.
'90 Iroc TPI 305, 5 spd B&M Ripper shifter, hopefully I can rob a bank or something and get more
www.geocities.com/irocnroll90
Reply
Old Oct 24, 2001 | 11:06 PM
  #4  
hectorsn's Avatar
Senior Member
 
Joined: May 2001
Posts: 502
Likes: 0
From: Hollywood, FL
Car: 78 Regal
Engine: 82 FBod LG4 305, 730 ECM
Transmission: M20
Axle/Gears: 4.10
My personal feelings are that you would be better off with the factory ECM and a custom prom tuned by you. But that shouldn't come as a surprise since this is the DIY PROM board. Now maybe over at the DFI board you may get a different opinion but that's to be expected. The reason I say to tune what you have is that you won't need to sink as much in hardware or software. This is all covered in the article at the top of this page. I know that lots of guys are making big power with DFI and other systems, but there are also lots of guys making lots of power with the factory stuff and saving the extra scratch. The key phrase most people tune in on with DFI is "ease of use" but since when does "easy" guarantee "good". It's your money and your car so it's your call. Good luck on whatever you decide.
Reply
Old Oct 25, 2001 | 09:40 AM
  #5  
Grumpy's Avatar
Supreme Member
 
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by My90Iroc:
Is DFI really advantageous to using the stock computer with a custom chip to match the application? I'm building a 385 cu. in. motor, but I'm not sure if I'll have enough to get the SR intake right away, so I may leave the LTR setup until funds allow SR. If this is the case, I'm going to have to get the chip done once, then again when the SR gets on there. I am considering burning the chip myself, but if I have the time to do that will be the determining factor. My other idea is that if I have the $$ for the SR, maybe I should wait on that and get DFI first, then add the SR later. What are your thoughts on this? What exactly do you need for DFI and does everything come in the kit (like you see in Jeg's) or is there extra stuff needed also? The car is a '90 (obviously) so it currently uses Speed Density.
</font>
Every so often an ecm will fail. When your running DFI are you going to carry a spare?.

I carry a spare ecm, cost $35.

Takes a lil more talent to work on a stock ecm, and you can't just plug a cable in and drive away and change stuff as you go.
For me I have to stop and think, and I can burn a chip will writting notes.

For a race car running P+H injectors you have to go aftermarket.

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
89-IROCZ-5.0TPI
TPI
10
Feb 22, 2022 09:26 PM
91 SrS
Exhaust
5
Oct 7, 2015 04:32 PM
Bigold4x4
Transmissions and Drivetrain
4
Sep 28, 2015 05:21 PM
efiguy
Engine/Drivetrain/Suspension Parts for Sale
0
Sep 27, 2015 01:30 PM




All times are GMT -5. The time now is 09:49 AM.