Is there an easy way to adjust pressure for WOT? I went with the 305 injectors for a 355. Do you just do drag strip runs wihile adjusting?

 

Robert, the way you check your fuel pressure at WOT is you have to tape a gague to the windshild while your driving, and see if your fuel pressure drops off at WOT. Ive got a Hypertech fuel pressure gague, works great for me.

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Convertible, L98, Mini-ram, ZZ9 cam, Comp Cams 1.52/1.6 steel roller rockers, Trick Flow 23* heads, K&N's with chopped airboxes, March underdive pulleys, Edelbrock ceramic coated TES, Flowmaster cat-back exhaust, Dynomax high flow converter, MAC subframe connectors, Accel box & coil, 3.23 rear gears, white face gagues, and NOS!
When I get back from Kosovo I will be installing these on-order items!

 

Use a separate Wide Band O2 sensor. The stock O2 sensor is not accurate enough to use except as a very rough indicator, and some would even argue against that.

Another method used by many of the Eprom Guys is to lock the BLM on your eprom to 128 and use your INT as an indicator. You then adjust the %TPS for Power Enrichment to high 90% range and then find a nice long hill. Then with the vehicle in a lower gear, accelerate up the hill giving your car the highest TPS setting you can without triggering Power Enrichment (WOT Mode). Capture the INT value for the various rpm ranges with the load at close to 100 kpa as you can get. Then for INT value less than 128, you lean the mixture; for INT values greater than 128 you richen the mixture.

I prefer to use the fuel pressure I want to (46-48 is a good compromise) and then fine tune the eprom using the method above.

 

yep Glenn is the man. You'd better go out and spend $500+ on a good wideband and install it into your exhaust, and don't forget something to monitor it accurately.... cause you know cars just wont run without the correct A/F ratio.. and yes all cars are the same. You'll never go fast unless your block counts reach the ideal number. aaaah, you might as well forget it, it's just too difficult a task to tune WOT for a beginner..

just kidding,




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*I do custom performance mods on Edlebrock Performer carburetors (dualplane intake mods in the works),
White 1986 Irocz, 305/383 with Edlebrock Performer-RPM intake and Performer #1407 carburetor, +110hp shot of crack, 700R-4 tranny, 3.25:1 rear, Mcreary Road-Stars, SLP-stainless 1.75" shortie headers & Y-pipe, single 3" Borla exhaust, Linginfelter-TPI camshaft part number 74216 pulls 17" vacuum solid. Cam specs 213/219 @.050 114-LSA, .462/.470 lift @1.5:1 ratio. MSD-6AL, billet distributor, multi-retard, blaster-3 coil, and RPM switch.
N/A runs 10.9 @124,
Crack-runs 10.3 @135
haven't run at track since Oct-99

 

Any accurate timer will work. Vericom, G-Teck, some scanners. You need to actually measure things to see what works, and seat of the pants isn't accurate enough. Drag strip is safest and most accurate. Also, need to do plug cuts. A WB is neat (I use one) sometimes. But, a good pass, and plug reading will tell as much. A scanner with datalogging can be excellent for finding out when a K/S is being triggered.
Most of all keep notes.
Do what the engine tells you it wants, not what you think it needs.