11% slip ain't so bad. You got problems if it's over 15%.

Is that the same trim that it ran 144 mph in?

Mike

 

I'm a little confused here, it sound like the stock 95 lt1 is ran in squential based on crank and sync signals both provided by the opti. However, the lt1 bs3 does not run in full sequential mode? I.E., it can't get a sync signal from the opti, but it can still get the crank reference from the opti?

I have never heard of random sequential..... sounds like batch to me...?

 

Still stock PCM, have ditched the OBX FMIC and added 1 extra M15 aky nozzle (gained over 3psi, boost gauge is maxed out at 20psi), Them "emission Friendly" 22x-23x cam is replaced widh a 24x-26x 10xLSA ¨race cam", Block is also 1/2 filled now. Aming for 160mph in this now
http://www.nonameracing.se/photos/de...Projekt_Ascona

 

Well yes, that's my point. It's not firing one bank, then the other as in batch fire. It's still firing the injectors in a sequential order, just probably not the right order since it doesn't know if it started out on cyl #1.

servion- you are correct. BS3 can recognize engine rpm from the optispark, but it cannot recognize cam position.

 

do you know of anyone running a setup in this unsunk (not sync'd) sequential?

also the bs3 can get rpm and crank position from the optispark, right?

 

Yes, that's how I ran my car for the past 2 years. BS3 can get crank signal/rpm from the opti. My car ran great but I'm sure it could only be better with a cam signal. (and even better with a crank trigger).

 

i have setup bs3 in simulated sequential mode on a few v6s. essentially, it fires the injectors in sequence (18436572), just not in sync with the actual orientation of the cam. 100% factory style sequential requires the cam sync.

 

im thinking about having my IM machined to accept a msd dual sync distributor,
that way i can feed the big stuff 3 cam and crank signal, and let the msd distribute spark.

any comments on this?
good? bad?
i think this will be the easiest way to get a true sequential with an aftermarket ecu.

 

I used an msd dual sync distributor with BS3 on a twin turbo sbf and it worked great. Summit had the distributor in stock but MSD says they stopped making them.

 

could you tell a difference between when the car was run in random sequential and true sequential? if so what was the difference? drivability? power?

where did you have your intake manifold modified to accept the msd dizzy?
i know lt1intake.com used to so it, but i sent an email and he said he is to backed up and not taking any more work right now.

my plan is to get the bs3 and wire it up to the opti and get the ecu all figure out. then turbo the car and see how it does. if i dont like it or i think it can be better, ill get the msd dual sync and run it that way.

 

up for a response,

anyone see a better way to do it or possibly have a comment on my method

 

Man, and I thought I was making good power on a stock opti. I have added a msd coil and wires and autolite 104's to get the numbers in my sig at 14psi. Okay back to the big dogs.

 

i just ordered a BS3,
i will be running it in random sequential with the optispark at first.
if that doesnt work out i will be adding a dual sync dizzy behind the stock lt1 intake manifold and run it in true sequential.

just wanted to update this if anyone was following it.

the main reason i went with a true stand alone is so that the ecu will be able to read boost and know what to do once it sees it.
i dont want to try and trick my ecu.

thanks for everyones help,

 

I spin my motor to 7k, but I have an AFR Hydra rev kit. If you dont have one, I would rec. it! By the way, I have a stock opti and it works well
my current #'s are not as high as you plan, but they are 630/660 at the tires.

 

I've researched this quite a bit myself and finally opted for an LS-1 BS-3 system to run on my LT-1. I chose this for several reasons, but will be able to run in the sequential mode and use a coil-on-plug system as well. I'm using an MSD dist stub that generates a cam sync signal and BS-3's 24x crank sensor. I also chose to replace the stock LT-1 intake with a single plane, 90* elbow and an Accu-Fab 90mm throttle body. I'm hoping this all works out the way I want it to...should be interesting. Keep us posted on your progress, good luck.