mxhockeydrummer

ACCEL Gen 7 DFI v6.1

Fast E-dist

LS1 coils

2 - Hamlin 55110 flange mount Hall effect sensors for cam/crank pick up

Embedded 1/4" x 1/16" magnets with JB weld.

The Gen 7 DFI shares the cam signal with the E dist, so I used a IC to buffer the output signal to eliminate voltage drop.

More to come....

Some pix below

Big Al

iTrader: (1)

I'm not up on this, but how does the PCM get the high res signal? Or are you using a different PCM?

Al 95 Z28

Ocala93TA

iTrader: (9)

I would like to see how this turns out

SRZ

iTrader: (14)

Got any pics of the E-dist and the 2 Hamlin 55110 flange mount Hall effect sensors for cam/crank pick up?

alan2000T/A

iTrader: (23)

for 93 guys like me this is good info. I'm tired of opti, chips, etc.

Tinbender59

stay with it, I like it, you may have trouble with hi rpm's due to centrifical forces wanting to rip it apart, but it is a dang good idea. let me know if I can help with the Electronics. , if this doesn't pan out I do have a new idea that is in this catagory.

Nastyc4

iTrader: (13)

I'm ordering an ati shell with magnets for my crank damper with an msd crank pickup for my crank input. For cam all I have now is the dialing sync for signal but I want to get a more accurate signal from inside the opti. Anyone know who can make/modify a wheel and a pickup for a 1x signal? I'm running an accel dfi gen7.

Nastyc4

iTrader: (13)

Ok just thought about what you made and stupid me just realized its pretty much what I need for cam input but you are getting both signals from inside?

mxhockeydrummer

Unfortunately the stock PCM is not used with this application. I am using a stand-alone engine management system [accel gen 7 dfi]. In conjunction with the gen 7, the FAST e-dist eliminates the need for a mechanical cam-driven distributor.

This set-up is strictly used for bolt-on, stock replacement, big horsepower LT1 applications.

mxhockeydrummer

If you are using a separate crank trigger, you're only option is to use EFI connection's LS1 cam sync with LS1 CPC and some kind of electronic distributor.

Syncing is not too big of a deal. Can be done electronically in CALMAP. Rising edge, falling edge, crank offeset etc. Pretty versatile software as long as you have your sensors dialed to the proper TDC datum points

Nastyc4

iTrader: (13)

I was just going to use the accel dual sync for cam only signal. I enquired with efi connection long back when they first were developing their system they were insistent that nothing could give me the 1x cam sync signal I needed.

If I understand right. The fast e dist basically replaces the distributor.. Takes a cam and crank sync and is able to run 8 coils ??? Where was this 8 years ago when I put the gen 7 on !!!!

mxhockeydrummer

Yes the edist uses the cam signal and est wire from the DFI to fire the coils. I was in the same boat, I didnt feel like machining my intake to fit the dual sync and re routing oil pressure sensors/fuel pressure regulator. My LT1 is in a trans am so there is limited room to work with. Just a mess, so i built this.
Plus the coil per cylinder concept can support 1500+ hp which is neato. lol And to answer your previous question, both 1x cam and 8x crank are incorporated into this unit. Saved me a lot of time and money to take this route. Hardest part was machining the billet cover; well, not hard, but time-consuming.

Iam finishing up the wiring today, and will be turning the key tonight.

TwoFast4Lv

iTrader: (8)

When i decided to go Belt drive I did this




Cam Sync will be off of the Belt Drive

mxhockeydrummer

Typical mechanical engineer. My dad measuring the pulse width with a pair of calipers lol

Attached is a picture of the cam and crank signal



**UPDATE**
The car is running. Everything is working the way it should. Although, something still isnt right. The car will only run at WOT (and yet barely runs) and has no throttle response what so ever. Ive checked everything I could possibly check and came up with no solution; yet.

SoxXpupPeT

iTrader: (34)

Hopefully you could figure it out. your on to something good

mxhockeydrummer

*Latest Update*

After weeks and weeks of my blood sweat and tears going into this project it has finally payed off. Turns out there was a combo of minor things (fouled plugs, rich-*** tune [tried to tune myself {bad idea}}, incorrect timing parameters) that just wouldn't allow me to get the car running the way it should. With the help of my pops, and tuner Harry Anderson the car is now up and running!

It took 6 variations to get the magnetic rotor/senors correct to where both the FAST edist and ACCEL Gen 7 will both accept and process the signal properly.

First test drive is tomorrow morning. Pics and Videos will be posted.

mxhockeydrummer

Here she is:


First run.

http://www.youtube.com/watch?v=4iMgY4yDPtU

GreenBlood55

iTrader: (1)

:jealousface:

lt1slowz28

nice work!

Rob94hawk

iTrader: (1)

It sounds great! But what's with the exhaust plume coming from the front of the engine?