Never before has so little power been made from so much displacement! (Page 13 of 57)

You said you've never ran this engine yet?

We were talking about your car this weekend, while we were working on our own car.     Are you sure your engine runs in the correct direction?

man this is the most epic build i have ever seen. i haven't quite figured out if your stark raving mad, or just a mega gear head bent on destruction/implosion... either way nice job!

+1

I work around airplanes (KC-135Rs), and the engine shop shares the building with our shop. Right now they have some APUs laying around that were received bad from supply. Today I threatened to take one and put it in my RX-7 and LeMon it. Your car was the inspiration for that threat, but I'm insufficiently LeMony to succumb to that madness.

Good luck muffling an APU under 90db!

erik, I'm currently working on securing an 82 FB, get me one of those APUs fer free and I'll die trying >:D

Sorry, they're not mine to give. Try www.govliquidation.com.

small update for tonight. spent a bunch of time drawing flanges on the computer to get waterjetted for the intake & exhaust. ordered the J-bend tubes for the exhaust. it kills me but i went with mild steel instead of stainless.

also i hit up the yard for the ignition components:

those are a pile of 12 LS1 coils.

I also engineered a solution for the cam/crank sensor and the alternator drive all in one shot.

the plan is as follows:
start with a 40tooth sprocket, remove the tip of one tooth to make a 40-1 crank trigger wheel.
mount that sprocket on the prop flange.

use an 11tooth sprocket, mount it on an alternator to get a 3.6:1 drive

connect the two together using an 80 pin chain. the length is critical because i can use a connecting link like this:

that pin becomes the cam sync pulse that i need to be able to use full sequential ignition/injection.

I thought it was a pretty slick idea. I'm effectively getting two ratios from the same setup. 3.6:1 increase for the alt to spin fast enough to charge and an exact 2:1 reduction between the chain and the master sprocket to get the 720degree sync.

as an added bonus, it will probably be noisy.

it also places the alternator 13" away from the crank which is about perfect to prevent blocking airflow to the cylinders.

The chain is a really good idea as i'd imagine getting a sync signal off of that engine would suck.  The only 2 problems i see with a chain driven sync is if the chain slips or if for some reason you need to remove the chain it might suck to get the sync in the right spot again.  Though a few lightening holes in the sprocket and you could have a few places to zip tie the chain in place and do what you gotta do.  I dont know how flexible the sync window on MS is with missing tooth.  I doubt you will have a problem though as long as you can keep the alternator adjustment tight.

  The other possible issue is an exposed sync trigger could get destroyed by debris.  A couple of those chain links and a sync pickup as backups as im sure those arent exactly locally available.

Are you planning on having the sync pickup 90 degrees to the crank?  I'd imagine the chain will wonder a bit and will mess with the sync trigger to sensor gap constantly.  Not sure how sensitive MS is to different height waves sync pulse to pulse is but it may be an issue.  (the ecu's i use can only have a 20% voltage variation wave to wave or it ignores it as noise.)

There is nowhere you could add a hole on the engine to put a sync sensor in?  Is there an inspection plate anywhere that can view the cam?  Id imagine the cam wheel or whatever its called on this could have a bolt head or a small pin drilled in as a sync or even a sensor bung in one of the valvecovers reading a lifter maybe (id guess hall would be the way to go reading a lifter.)  The chain is definitely an easy option, i just usually try to minimize the sync tooth 'wobbleablity' and vulnerability. 

I saw a aviation tach on ebay a while ago, 2500 rpm redline.  Are you planning on displaying the actual engine rpm or "corrected" rpm after its geared up on a tach?

Marc, your chain and sprocket idea is genius.  Color me impressed.

the competition must be who can atomize oil the most effectively

mulry; i thought that already happened at buttonwillow last year? the end result, was we all survived. those freaks with the hardon collider apocalypse theories have been debunked after that!