kbog54

Ok, i cant get my '87 ws6 formula (350 TPI) to start after switching the cam.

the new cam was installed at 0 (not 4 degrees retarded or advanced)
Compression is good
Strong spark
Plenty of fuel

tried setting the timing at tdc and only got a backfire every other time it cranked over completely. For some reason the dist. doesnt like seating all the way until you crank it over and put some pressure on the dist, then it drops right in. I did notice that for some reason when i leave the key on and swivel the rotor the fuel pump keeps priming intermittently.

Basically i am stumped and need some ideas.

thanks.

rat-at-tach

sounds to me that you are not fireing on your #1 cylinder.
first off make sure you have all your plug wires right,if that checks out pull your dizzy and spark plugs,put a socket on your fan and turn the mototr over untill the marks line up for tdc,then drop your dizzy in and check and see if the rotor is pointing at the #1 fireing position,if not pull the dizzy and rotate the rotor untill its about 1in from #1 position and drop it in it should slide in moving the rotor the 1in into position.

Scrote

Timing is off...did yiu mark the distributor when you pulled it out?

Blu91Z28

You have to be sure that you're on the compression stroke and not the exhaust stroke when you line up the mark for TDC also.

aklim

Assuming you have the cam right you need to rotate the motor over by hand. Watch for the #1 cylinder's valves. When the mark on the harmonic balancer is at zero, what is the position of the valves? Is one up and the other down? The both have to be closed for that to be #1 TDC. That is assuming too that your balancer is not bad and the mark has moved and assuming you got the rockers set up with the correct tension.

kbog54

Ok, i'll check the valve positions tomorow, hopefully im just off 180 degrees

Stekman

I'm going to assume you installed the timing gears lined up "dot-to-dot." If so, you are indeed 180° out.

kbog54

ok, got it started this afternoon and it runs great, timing was indeed 180* off. thanks guys

aklim

What method did you use to get it right? Just curious to see what works for people.

kbog54

Had my friend bump it over very slowly with my finger over the #1 spark plug hole until there was compression, then turned it over by hand until the balancer lined up with the 0* timing mark. dropped in the dist. and pointed it at number one.

Had my friend crank it over while i rotated the dist slightly until it started fireing and finally started.

For some reason i had to rotate the dist. almost a 1/8 of a turn from tdc to get it started

I have another question, about what fuel pressure should i be running with the stock injectors? ( i know i should get bigger ones, but its not in the budget right now)

cam specs: .525 lift 224/232 duration 112lsa

kbog54

Also, could you recomend a place that does a good job of burning chips? My car runs fine, no ses or anything, but i know getting a reprogrammed chip will give me more power, and ill need one when i switch to the hsr anyway.

aklim

Dunno. Ask the chip burner. Where are you at? For a chasis dyno I use www.hitechmotorsport.com but they are in MN. For the street dyno which is much cheaper I use www.fasterproms.com who has done mine before. Ask to borrow their Diacom unit for emailing them the feedback.

kbog54

I live in spooner, WI which is about an hr south of duluth

aklim

You gotta a means to tow the car to Ramsey MN? They have a chasis dyno so you can get some numbers. I go to Minong area to ride ATV. Give Hitech a call and see what they can do for you. They might be able to give you some advice so you can get it ready for a chasis dyno tune which is about 450.

Marc 85Z28

That's normal. The distributor always moves a little when the gear meshes with the cam gear.