Hello fellow DFI'ers. I am interested to see what some of your spark tables look like, can we post some here along with a brief description of the vehicle/engine combo...



'86 Camaro SC

'89 350 2 bolt block
Factory crank
TRW forged pistons

'86 Corvette aluminum heads (fully ported)
9.5:1 compression
'86 Corvette TPI Manifold (ported to match runners)
Air Flow Research "Hydra-Rev" kit
1.5 Crane Gold roller rockers

Comp Cams hyd. roller cam
Lift ; .520I/.540E
Duration @ 0.050 ; 236I/242E
L.S.A. ; 110

MSD 6AL ignition
Accel/DFI ecu using White Racing jumper board
(NO More MAF sensor!!!)

Ported plenum (also matched to runners)
24# injectors
52mm throttle body
K&N filters
A.F.P.R.

SLP Runners
SLP 1 3/4" Headers
SLP 3" exhaust (cat. back)
Random Technologies Cat.
Completely emissions legal

R.O.D. 6 speed trans.
B.W. 3.27 rear
South Side Machine lift bars
Complete '89 Iroc suspension and steering

 

i have timming maps but i cant post them
also from the map you have it seems
a few degress off.

check out my page at:
http://darcom.home.texas.net/


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388 SuperRam, DFI, Vortech R trim ,N.O.S.,alki injection,
Dart sportmansII heads,50 pound injectors, Headman full headers
duel 3' exhaust,and Flowmasters, Ford nine inch with 370's
Ronal rims with Nitto drad raidals.

 

I know that the advance between 75-100% load look a little strange (especially from 2000r's up), that is because I am messing around with the table to try to eleviate a knock retard problem I am having. It usually begins at about 3000-3500r's and then with the help of the EST goes away and never returns until I shift again. That is exactly why I wanted to see what some other DFIer's maps look like.

[This message has been edited by TunedPort350 (edited May 13, 2001).]

 

This was my original one. I've since made a lot of changes and will be making changes to this table.


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Bob '89 Ram Air Formula 350
And until that time when death won't wait, let each man rage against his fate. (O'neill)
My car's homepage

 

RCR, shouldn't you have full ignition advance at full load at 3500 rpm? I would think you should have around 32 degrees, not ten. Also, under light load, I believe you can bump the timing up to 40-45 degrees. Fastbroker gave me some pointers.

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1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.

Double-Pump This! EFI Rules!

 

Yes, that's probably true. I will be making changes with my new setup. With the previous setup, I went WAY conservative because I was picking up a lot of knock. Turns out I had 10 inner valve springs broken on my G1 TW heads. Just lucky it didn't come apart.

 

I think he has 22 degress initial advance in that table, no??? So, add 22 to all the values?

Here is a generic table that will get any good V8 running ok. More advance should be necessary, for sure, but this is just to help to get people started. In closed loop (14.7:1), this table is good, though, as the engine can't take too much more spark than this in CL. When you are in Power Enrichment (12.5:1 or so) you can/need to add a little spark, like 2-6 degrees, depending on combo and whether or not you have Al heads. hope the table comes out ok:

21.1 19.6 18.1 16.6 15.1 13.6 12.1 10.6 9.0 7.5 6.0 4.5 3.0 1.5 0.0 Vacuum, in
rpm 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 MAP
400 24 24 24 24 24 22 20 18 16 14 12 10 10 10 10
600 24 24 24 24 24 22 20 18 16 14 12 10 10 10 10
800 24 24 24 24 24 22 20 18 16 14 12 10 10 10 10
1000 26 26 26 26 26 24 22 20 18 16 14 12 12 12 12
1200 28 28 28 28 28 26 24 22 20 18 16 14 14 14 14
1400 29 29 29 29 29 27 25 23 21 19 17 15 15 15 15
1600 31 31 31 31 31 29 27 25 23 21 19 17 17 17 17
1800 33 33 33 33 33 31 29 27 25 23 21 19 19 19 19
2000 35 35 35 35 35 33 31 29 27 25 23 21 21 21 21
2200 37 37 37 37 37 35 33 31 29 27 25 23 23 23 23
2400 39 39 39 39 39 37 35 33 31 29 27 25 25 25 25
2600 40 40 40 40 40 38 36 34 32 30 28 26 26 26 26
2800 42 42 42 42 42 40 38 36 34 32 30 28 28 28 28
3000 44 44 44 44 44 42 40 38 36 34 32 30 30 30 30
3200 44 44 44 44 44 42 40 38 36 34 32 30 30 30 30
3400 44 44 44 44 44 42 40 38 36 34 32 30 30 30 30
3600 44 44 44 44 44 42 40 38 36 34 32 30 30 30 30


EDIT: This is basically a mellow HEI curve. Obviously, you can make the curve ramp in places where it is flat, change spark at near-idle areas, etc, etc, etc. Have fun.

[This message has been edited by FastBroker (edited May 15, 2001).]

[This message has been edited by FastBroker (edited May 15, 2001).]

 

Fast Broker,
The only way that would be true is if he set his base timing that way, otherwise the DFI is designed so that what you program in the spark table is what is actually at the crank. So he is actually at 10-12 degrees at 3500+ r's and full load.

What city/town you from? Please don't say Ansonia , talk about "burning rubber" eh?

[This message has been edited by TunedPort350 (edited May 15, 2001).]

 

Yeah, good one. Like the tire plant 20 sum-odd years ago in the same place... hmmmm

Manchester for me when in CT. Sheeoottty town but wife's family kinda centered around there. Plus, a chassis dyno in town...

And, just because I live here doesn't mean I have to hang/work here. Work in Hartford...

If that was a "true" table, he'll see A TON OF IMPROVEMENT when he makes changes. I'd like to see the look on his face when he first drives it... EDIT: He's GOTTA have 10 degrees initial advance or that motor must run pretty damn aweful with only 10deg at WOT and high rpm...



[This message has been edited by FastBroker (edited May 15, 2001).]

 

This isn't my most recent spark map, but it's fairly close. I still tinker with it and the fuel map a little since it seems to want slightly different calibration summer vs winter. I've also got a map that got my emissions readings down to 26 ppm HC and 0.01% CO. I run a knock sensor and it isn't taking any timing out unless I'm at WOT in 5th at 1400 rpm. I'll apologize in advance for not being able to post an image. The RPM scale ranges between 800 rpm and 4000 rpm


28.0 32.0 35.0 38.0 39.8 40.8 41.8 41.8
27.0 31.0 34.0 37.0 38.8 39.8 40.8 40.8
26.0 30.0 33.0 36.0 38.0 38.8 39.8 39.8
25.0 29.0 32.0 35.0 37.0 38.0 38.8 38.8
24.0 27.0 31.0 33.0 35.0 37.0 38.0 38.0
23.0 27.0 31.0 33.0 35.0 37.0 38.0 38.0
22.0 26.0 30.0 33.0 34.0 36.0 37.0 37.0
21.0 25.0 30.0 33.0 33.0 35.0 36.0 36.0


SuperRam, AFR 190's, LPE 213/219 hydraulic roller cam, Crane Gold 1.6 RR's Flowtech headers, 3.73's

Norm



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1979 Malibu w/some cornering tweaks and a few other things

[This message has been edited by Norm Peterson (edited May 15, 2001).]