when I time my tpi I have to reconnect the stock harness to get the timing light to get near the stock 6 BTDC. when I try to time it with the accel 300+ on it wont get anywhere near 6 -- it only goes to about 0 before stalling.

yes I know how to time correctly with the EST wire disconnected.

does this have something to do with the CDI?


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88 WS6 T/A 305 TPI--
K&N,Air foil,hypertech chip, thermostat+fanswitch
free mods, dynomax catback, urethane motor+trans mounts, PST front end poly stuff, Earl's hyperflex brake lines SSM SFCs, Bilsteins very trick homemade ramair, Accel 300+ ignition system. Ported plenum, intake and heads with 1.94I valves.
Planning: Heddman 1-5/8 longtubes, NOS 150 plate, replace the "peanut"! and Eibach Sportlines.
check it out at:
http://www.geocities.com/transam617

 

Hey, I cant answer your question, but I was wondering how you like the 300+ system? Im considering it... hows the quality/performance of it?
-Rob

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92' White Trans Am Convertible, 305 TPI, 5 spd. 2:73's, Edelbrock TES, Accell 8.8's, Hypertech Stage II, TPIS Air Foil, Ported Plenum, K&N TB Cone Filter, AFPR, & A Little Bit Of Attitude!
-Best ET: 14.944 @ 93.11

88 Gunmetal GTA Hardtop... Project In The Works!

"GUYS, WE NEED TO FIND A MUSTANG TO RACE... THERES ONE! HOLY SH*T SHES HOT! SHES NOT GONNA GO... NAH... HOLY SH*T SHES GOIN!"

 

its decent,
havent had any problems other than the one Im mentioning here. and it definately helps with starting and I notice that it pulls harder above 4000. I dont have any experience with MSD but I think they should be as good if not better than accel from the amount of bad things Ive heard about accel.

 

I have no idea what the problem is either but I have heard that you have to do the same thing with the MSD to get proper timing. I'll find out within the next week when I install my MSD 6AL.

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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.

 

I wouldn't think that timing lights would like captive discharge ignitions becuz it keeps sparking for a number of degrees. Stock ignitons only fire for a single degree but a msd type ignition fires for many degrees like 18* of crank rotation.

 

If the timing light isn't working with CD ignitions, then how can you get the timing set? Is there another way besides the old listen for it method.
I am going to a CD multispark system soon and would be nice to know.

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'88 RS (originally 2.8)
-350, .040 over, vette alum. L98s, stock tpi.
-305 injectors & chip
-TES headers & edelbrock cat back
-3.73 gears, 700r4.
Best with 2.8-17.4@77mph
Best with 305-15.0@93mph
Best with 356-13.7@101mph
on a 2.050 60 ft.
(Damn the 2.8!)

 

It's not that hard to disconnect the CD ignition, time the car, and then hook the CD ignition back up. Like with MSD, you still use the ignition module with the MSD... unlike the carb where you eliminate the stock ignition module all together. So with TPI engines you can quite easily switch back to normal ignition to time the car properly.



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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.