Originally Posted by craz azn
Even if you say you have almost the same gains, have you compared your dyno plots with MarkD's software? Peak gains aren't that interesting to me. Useable gains are. I have tested his chip once before in a E30 318iS, and it sure made a hell of a difference in the butt-dyno for torque.
Have you tried out bmwconnects chip in a car? I'm interested in what you found, I'm in the market for a chip, as it were. Did you have it dyno'd independantly of what he just posted?
I've found Spritz Up is just as good as 7Up, for a better price.
BACK TO THE ORIGINAL QUESTION:
Yes, a chip is good. Injectors is a nice mod as well, the stock ones quickly fail to deliver enough fuel as you get into the higher RPMs. Cleaning your stock ones, if it has never been done, will do a lot to get power out of them again. A kit off eBay will do fine, just clean them off, replace the filters and make sure they're still squirtin'.
In terms of replacing them:
Mustang GT 89-98
Mustang Cobra 89-93
Mustang Cobra Supercharged
Almost all ford 4.6 and 5.0 motors
Ford SVO mustang, turbocoupe, xrti
Ford Lightning 99-04
Stock e30 injectors 13lb-hr
Be aware, that upgrading beyond 22lb-hr on a non-turbo car is not going to really be a wise mod. I'd say go for the 19 lbs and call it a day in that arena.
For the intake
, which is another choking point for the engine, a popular mod is to swap the M30 AFM into our M20 engines. Dynos show it giving (in combination with 19lb injectors) about 6 HP and 5 lb/ft of torque, and quite evenly across the RPM curve, so you're not loosing in one area to gain in another.
Here's a great DIY for the swap. http://www.davelength.net/car/bigsix.html
Once the air intake and injectors have been upgraded, a chip would be a great idea, to fully realize the gains possible for your now less restrictive engine.
MY 2 CENTS:
Before you start hitting up the engine, I'd deal in the suspension area first. If you're looking for a fun, quick commuter (like me) then suspension is going to be the one you notice fastest. Especially as we are heading into winter and even 50 HP Geo Metros are getting sideways.
If I'm totally wrong on all counts, someone feel free to correct me.
REMEMBER: Be safe and have fun is rule number 1.